java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEqualityWithBranches.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:35:38,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:35:38,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:35:38,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:35:38,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:35:38,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:35:38,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:35:38,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:35:38,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:35:38,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:35:38,112 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:35:38,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:35:38,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:35:38,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:35:38,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:35:38,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:35:38,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:35:38,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:35:38,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:35:38,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:35:38,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:35:38,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:35:38,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:35:38,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:35:38,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:35:38,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:35:38,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:35:38,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:35:38,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:35:38,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:35:38,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:35:38,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:35:38,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:35:38,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:35:38,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:35:38,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:35:38,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:35:38,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:35:38,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:35:38,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:35:38,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:35:38,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:35:38,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:35:38,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:35:38,204 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:35:38,204 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:35:38,206 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEqualityWithBranches.bpl [2019-08-05 10:35:38,206 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEqualityWithBranches.bpl' [2019-08-05 10:35:38,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:35:38,242 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:35:38,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:35:38,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:35:38,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:35:38,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:35:38" (1/1) ... [2019-08-05 10:35:38,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:35:38" (1/1) ... [2019-08-05 10:35:38,277 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 10:35:38,277 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 10:35:38,278 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 10:35:38,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:35:38,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:35:38,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:35:38,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:35:38,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:35:38" (1/1) ... [2019-08-05 10:35:38,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:35:38" (1/1) ... [2019-08-05 10:35:38,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:35:38" (1/1) ... [2019-08-05 10:35:38,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:35:38" (1/1) ... [2019-08-05 10:35:38,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:35:38" (1/1) ... [2019-08-05 10:35:38,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:35:38" (1/1) ... [2019-08-05 10:35:38,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:35:38" (1/1) ... [2019-08-05 10:35:38,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:35:38,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:35:38,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:35:38,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:35:38,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:35:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-05 10:35:38,378 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 10:35:38,379 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 10:35:38,380 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 10:35:38,672 INFO L275 CfgBuilder]: Using library mode [2019-08-05 10:35:38,673 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 10:35:38,674 INFO L202 PluginConnector]: Adding new model HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:35:38 BoogieIcfgContainer [2019-08-05 10:35:38,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:35:38,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:35:38,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:35:38,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:35:38,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:35:38" (1/2) ... [2019-08-05 10:35:38,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a37de63 and model type HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:35:38, skipping insertion in model container [2019-08-05 10:35:38,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:35:38" (2/2) ... [2019-08-05 10:35:38,694 INFO L109 eAbstractionObserver]: Analyzing ICFG HiddenEqualityWithBranches.bpl [2019-08-05 10:35:38,711 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:35:38,722 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:35:38,744 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:35:38,780 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:35:38,781 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:35:38,781 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:35:38,781 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:35:38,781 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:35:38,781 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:35:38,782 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:35:38,782 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:35:38,782 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:35:38,797 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2019-08-05 10:35:38,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 10:35:38,806 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:38,807 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 10:35:38,809 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:38,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:38,818 INFO L82 PathProgramCache]: Analyzing trace with hash 978, now seen corresponding path program 1 times [2019-08-05 10:35:38,870 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:38,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 10:35:38,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:38,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:38,951 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:35:38,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 10:35:38,954 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:35:38,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:35:38,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:35:38,968 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2019-08-05 10:35:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:39,027 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2019-08-05 10:35:39,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:35:39,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 10:35:39,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:39,040 INFO L225 Difference]: With dead ends: 6 [2019-08-05 10:35:39,040 INFO L226 Difference]: Without dead ends: 4 [2019-08-05 10:35:39,042 INFO L628 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 [2019-08-05 10:35:39,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2019-08-05 10:35:39,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-08-05 10:35:39,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-08-05 10:35:39,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2019-08-05 10:35:39,076 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 4 transitions. Word has length 2 [2019-08-05 10:35:39,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:39,076 INFO L475 AbstractCegarLoop]: Abstraction has 4 states and 4 transitions. [2019-08-05 10:35:39,077 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:35:39,077 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 4 transitions. [2019-08-05 10:35:39,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 10:35:39,077 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:39,078 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 10:35:39,078 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:39,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:39,079 INFO L82 PathProgramCache]: Analyzing trace with hash 30521, now seen corresponding path program 1 times [2019-08-05 10:35:39,080 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:39,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 10:35:39,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:39,157 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:39,366 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:35:39,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:39,367 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:39,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2019-08-05 10:35:39,370 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:35:39,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:35:39,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:35:39,371 INFO L87 Difference]: Start difference. First operand 4 states and 4 transitions. Second operand 4 states. [2019-08-05 10:35:39,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:39,445 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-08-05 10:35:39,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:35:39,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-08-05 10:35:39,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:39,446 INFO L225 Difference]: With dead ends: 5 [2019-08-05 10:35:39,447 INFO L226 Difference]: Without dead ends: 5 [2019-08-05 10:35:39,448 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:35:39,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-05 10:35:39,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-05 10:35:39,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-05 10:35:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-08-05 10:35:39,450 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-08-05 10:35:39,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:39,451 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-08-05 10:35:39,451 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:35:39,451 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-08-05 10:35:39,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:35:39,451 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:39,452 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1] [2019-08-05 10:35:39,452 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:39,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:39,453 INFO L82 PathProgramCache]: Analyzing trace with hash 946354, now seen corresponding path program 2 times [2019-08-05 10:35:39,454 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:39,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 10:35:39,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:39,495 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:39,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:39,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:39,642 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:39,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 10:35:39,643 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 10:35:39,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 10:35:39,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:35:39,644 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 5 states. [2019-08-05 10:35:39,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:39,681 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2019-08-05 10:35:39,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 10:35:39,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2019-08-05 10:35:39,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:39,683 INFO L225 Difference]: With dead ends: 6 [2019-08-05 10:35:39,684 INFO L226 Difference]: Without dead ends: 6 [2019-08-05 10:35:39,684 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:35:39,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-08-05 10:35:39,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-08-05 10:35:39,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-05 10:35:39,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-08-05 10:35:39,686 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-08-05 10:35:39,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:39,687 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-08-05 10:35:39,687 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 10:35:39,687 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-08-05 10:35:39,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 10:35:39,688 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:39,688 INFO L399 BasicCegarLoop]: trace histogram [3, 1, 1] [2019-08-05 10:35:39,688 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:39,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:39,689 INFO L82 PathProgramCache]: Analyzing trace with hash 29337177, now seen corresponding path program 3 times [2019-08-05 10:35:39,690 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:39,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 10:35:39,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:39,741 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:39,821 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:39,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,082 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:40,082 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:40,083 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-05 10:35:40,083 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-05 10:35:40,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-05 10:35:40,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-08-05 10:35:40,084 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 6 states. [2019-08-05 10:35:40,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:40,127 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-08-05 10:35:40,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-08-05 10:35:40,127 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2019-08-05 10:35:40,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:40,127 INFO L225 Difference]: With dead ends: 7 [2019-08-05 10:35:40,128 INFO L226 Difference]: Without dead ends: 7 [2019-08-05 10:35:40,128 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-08-05 10:35:40,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-05 10:35:40,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-08-05 10:35:40,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 10:35:40,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 10:35:40,130 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-08-05 10:35:40,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:40,130 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 10:35:40,130 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-05 10:35:40,131 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 10:35:40,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 10:35:40,131 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:40,131 INFO L399 BasicCegarLoop]: trace histogram [4, 1, 1] [2019-08-05 10:35:40,131 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:40,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:40,132 INFO L82 PathProgramCache]: Analyzing trace with hash 909452690, now seen corresponding path program 4 times [2019-08-05 10:35:40,133 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:40,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2019-08-05 10:35:40,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:40,184 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,223 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,254 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,276 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,311 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:40,312 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:40,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-08-05 10:35:40,313 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-05 10:35:40,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-05 10:35:40,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-08-05 10:35:40,314 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 7 states. [2019-08-05 10:35:40,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:40,348 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 10:35:40,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 10:35:40,349 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2019-08-05 10:35:40,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:40,350 INFO L225 Difference]: With dead ends: 8 [2019-08-05 10:35:40,350 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 10:35:40,351 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-08-05 10:35:40,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 10:35:40,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-08-05 10:35:40,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-08-05 10:35:40,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-08-05 10:35:40,355 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-08-05 10:35:40,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:40,356 INFO L475 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-08-05 10:35:40,356 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-05 10:35:40,356 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-08-05 10:35:40,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-08-05 10:35:40,356 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:40,357 INFO L399 BasicCegarLoop]: trace histogram [5, 1, 1] [2019-08-05 10:35:40,357 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:40,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:40,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1871737479, now seen corresponding path program 5 times [2019-08-05 10:35:40,358 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:40,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 7 conjunts are in the unsatisfiable core [2019-08-05 10:35:40,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:40,419 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,535 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:35:40,536 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,585 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,615 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,667 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,703 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:40,703 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:40,703 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-08-05 10:35:40,704 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-08-05 10:35:40,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-08-05 10:35:40,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-08-05 10:35:40,705 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 8 states. [2019-08-05 10:35:40,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:40,730 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-08-05 10:35:40,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-08-05 10:35:40,731 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2019-08-05 10:35:40,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:40,732 INFO L225 Difference]: With dead ends: 9 [2019-08-05 10:35:40,732 INFO L226 Difference]: Without dead ends: 9 [2019-08-05 10:35:40,732 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-08-05 10:35:40,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-08-05 10:35:40,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-08-05 10:35:40,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-05 10:35:40,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-05 10:35:40,734 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-08-05 10:35:40,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:40,735 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-05 10:35:40,735 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-08-05 10:35:40,735 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-05 10:35:40,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-05 10:35:40,735 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:40,736 INFO L399 BasicCegarLoop]: trace histogram [6, 1, 1] [2019-08-05 10:35:40,736 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:40,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:40,736 INFO L82 PathProgramCache]: Analyzing trace with hash 2105680498, now seen corresponding path program 6 times [2019-08-05 10:35:40,737 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:40,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 8 conjunts are in the unsatisfiable core [2019-08-05 10:35:40,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:40,782 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,825 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,852 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,877 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:40,906 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,088 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:35:41,089 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,252 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:41,253 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:41,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-08-05 10:35:41,253 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-08-05 10:35:41,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-08-05 10:35:41,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-08-05 10:35:41,254 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 9 states. [2019-08-05 10:35:41,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:41,288 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-08-05 10:35:41,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-08-05 10:35:41,289 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2019-08-05 10:35:41,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:41,289 INFO L225 Difference]: With dead ends: 10 [2019-08-05 10:35:41,289 INFO L226 Difference]: Without dead ends: 10 [2019-08-05 10:35:41,290 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-08-05 10:35:41,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-08-05 10:35:41,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-08-05 10:35:41,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-08-05 10:35:41,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-08-05 10:35:41,292 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-08-05 10:35:41,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:41,292 INFO L475 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-08-05 10:35:41,292 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-08-05 10:35:41,292 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-08-05 10:35:41,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-08-05 10:35:41,293 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:41,293 INFO L399 BasicCegarLoop]: trace histogram [7, 1, 1] [2019-08-05 10:35:41,293 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:41,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:41,294 INFO L82 PathProgramCache]: Analyzing trace with hash 851586201, now seen corresponding path program 7 times [2019-08-05 10:35:41,295 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:41,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 9 conjunts are in the unsatisfiable core [2019-08-05 10:35:41,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:41,354 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,393 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,414 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,439 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,536 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,567 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:41,568 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:41,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-08-05 10:35:41,568 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-08-05 10:35:41,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-08-05 10:35:41,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-08-05 10:35:41,571 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 10 states. [2019-08-05 10:35:41,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:41,605 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-08-05 10:35:41,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-08-05 10:35:41,607 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2019-08-05 10:35:41,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:41,608 INFO L225 Difference]: With dead ends: 11 [2019-08-05 10:35:41,608 INFO L226 Difference]: Without dead ends: 11 [2019-08-05 10:35:41,609 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-08-05 10:35:41,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-08-05 10:35:41,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-08-05 10:35:41,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-08-05 10:35:41,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-08-05 10:35:41,611 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2019-08-05 10:35:41,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:41,611 INFO L475 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-08-05 10:35:41,611 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-08-05 10:35:41,611 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-08-05 10:35:41,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-08-05 10:35:41,612 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:41,612 INFO L399 BasicCegarLoop]: trace histogram [8, 1, 1] [2019-08-05 10:35:41,612 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:41,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:41,613 INFO L82 PathProgramCache]: Analyzing trace with hash 629368658, now seen corresponding path program 8 times [2019-08-05 10:35:41,614 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:41,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 10 conjunts are in the unsatisfiable core [2019-08-05 10:35:41,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:41,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,699 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,719 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,738 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,756 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,776 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,812 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,854 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:41,855 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:41,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-08-05 10:35:41,856 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-08-05 10:35:41,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-08-05 10:35:41,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-08-05 10:35:41,856 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 11 states. [2019-08-05 10:35:41,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:41,881 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-08-05 10:35:41,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-08-05 10:35:41,881 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 10 [2019-08-05 10:35:41,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:41,882 INFO L225 Difference]: With dead ends: 12 [2019-08-05 10:35:41,882 INFO L226 Difference]: Without dead ends: 12 [2019-08-05 10:35:41,882 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-08-05 10:35:41,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-08-05 10:35:41,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-08-05 10:35:41,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-08-05 10:35:41,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-08-05 10:35:41,885 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-08-05 10:35:41,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:41,885 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-08-05 10:35:41,886 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-08-05 10:35:41,886 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-08-05 10:35:41,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-08-05 10:35:41,886 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:41,886 INFO L399 BasicCegarLoop]: trace histogram [9, 1, 1] [2019-08-05 10:35:41,886 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:41,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:41,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1964407879, now seen corresponding path program 9 times [2019-08-05 10:35:41,887 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:41,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 11 conjunts are in the unsatisfiable core [2019-08-05 10:35:41,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:41,921 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:41,972 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,023 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,071 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,110 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,160 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,199 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,293 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,316 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:42,316 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:42,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2019-08-05 10:35:42,317 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-08-05 10:35:42,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-08-05 10:35:42,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-08-05 10:35:42,317 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 12 states. [2019-08-05 10:35:42,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:42,360 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-08-05 10:35:42,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-08-05 10:35:42,360 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2019-08-05 10:35:42,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:42,361 INFO L225 Difference]: With dead ends: 13 [2019-08-05 10:35:42,361 INFO L226 Difference]: Without dead ends: 13 [2019-08-05 10:35:42,361 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-08-05 10:35:42,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-08-05 10:35:42,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-08-05 10:35:42,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-08-05 10:35:42,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-08-05 10:35:42,363 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-08-05 10:35:42,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:42,364 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-08-05 10:35:42,364 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-08-05 10:35:42,364 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-08-05 10:35:42,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-08-05 10:35:42,364 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:42,364 INFO L399 BasicCegarLoop]: trace histogram [10, 1, 1] [2019-08-05 10:35:42,365 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:42,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:42,365 INFO L82 PathProgramCache]: Analyzing trace with hash -767101902, now seen corresponding path program 10 times [2019-08-05 10:35:42,366 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:42,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 12 conjunts are in the unsatisfiable core [2019-08-05 10:35:42,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:42,444 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,481 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,500 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,521 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,584 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,598 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,613 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,626 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,641 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,663 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:42,687 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:42,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2019-08-05 10:35:42,688 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-08-05 10:35:42,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-08-05 10:35:42,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-08-05 10:35:42,688 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 13 states. [2019-08-05 10:35:42,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:42,727 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-08-05 10:35:42,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-08-05 10:35:42,727 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 12 [2019-08-05 10:35:42,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:42,728 INFO L225 Difference]: With dead ends: 14 [2019-08-05 10:35:42,728 INFO L226 Difference]: Without dead ends: 14 [2019-08-05 10:35:42,729 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-08-05 10:35:42,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-08-05 10:35:42,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-08-05 10:35:42,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-08-05 10:35:42,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-08-05 10:35:42,732 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2019-08-05 10:35:42,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:42,732 INFO L475 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-08-05 10:35:42,732 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-08-05 10:35:42,732 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-08-05 10:35:42,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-08-05 10:35:42,733 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:42,733 INFO L399 BasicCegarLoop]: trace histogram [11, 1, 1] [2019-08-05 10:35:42,733 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:42,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:42,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1989645017, now seen corresponding path program 11 times [2019-08-05 10:35:42,734 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:42,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 13 conjunts are in the unsatisfiable core [2019-08-05 10:35:42,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:42,804 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,864 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:42,875 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,025 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:35:43,026 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,111 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,137 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,166 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,202 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,224 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:43,224 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:43,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2019-08-05 10:35:43,225 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-08-05 10:35:43,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-08-05 10:35:43,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-08-05 10:35:43,227 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 14 states. [2019-08-05 10:35:43,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:43,273 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-08-05 10:35:43,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-08-05 10:35:43,273 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 13 [2019-08-05 10:35:43,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:43,274 INFO L225 Difference]: With dead ends: 15 [2019-08-05 10:35:43,275 INFO L226 Difference]: Without dead ends: 15 [2019-08-05 10:35:43,275 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-08-05 10:35:43,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-08-05 10:35:43,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-08-05 10:35:43,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-08-05 10:35:43,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-08-05 10:35:43,278 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2019-08-05 10:35:43,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:43,278 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-08-05 10:35:43,278 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-08-05 10:35:43,278 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-08-05 10:35:43,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-08-05 10:35:43,279 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:43,279 INFO L399 BasicCegarLoop]: trace histogram [12, 1, 1] [2019-08-05 10:35:43,279 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:43,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:43,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1549453586, now seen corresponding path program 12 times [2019-08-05 10:35:43,280 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:43,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 14 conjunts are in the unsatisfiable core [2019-08-05 10:35:43,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:43,348 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,363 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,373 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,405 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,431 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,448 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,465 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,500 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,531 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,608 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:43,998 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:35:43,998 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:43,999 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:43,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-08-05 10:35:43,999 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-08-05 10:35:43,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-08-05 10:35:44,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-08-05 10:35:44,000 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 15 states. [2019-08-05 10:35:44,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:44,023 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-08-05 10:35:44,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-08-05 10:35:44,023 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 14 [2019-08-05 10:35:44,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:44,024 INFO L225 Difference]: With dead ends: 16 [2019-08-05 10:35:44,024 INFO L226 Difference]: Without dead ends: 16 [2019-08-05 10:35:44,025 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-08-05 10:35:44,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-08-05 10:35:44,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-08-05 10:35:44,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-08-05 10:35:44,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-08-05 10:35:44,027 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2019-08-05 10:35:44,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:44,027 INFO L475 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-08-05 10:35:44,028 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-08-05 10:35:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-08-05 10:35:44,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-08-05 10:35:44,028 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:44,028 INFO L399 BasicCegarLoop]: trace histogram [13, 1, 1] [2019-08-05 10:35:44,028 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:44,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:44,029 INFO L82 PathProgramCache]: Analyzing trace with hash 788421113, now seen corresponding path program 13 times [2019-08-05 10:35:44,029 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:44,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 15 conjunts are in the unsatisfiable core [2019-08-05 10:35:44,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:44,071 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,095 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,178 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,188 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,201 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,214 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,227 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,244 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,260 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,274 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,291 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,327 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,350 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:44,350 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:44,350 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2019-08-05 10:35:44,351 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-08-05 10:35:44,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-08-05 10:35:44,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-08-05 10:35:44,352 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 16 states. [2019-08-05 10:35:44,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:44,374 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-08-05 10:35:44,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-08-05 10:35:44,375 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 15 [2019-08-05 10:35:44,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:44,376 INFO L225 Difference]: With dead ends: 17 [2019-08-05 10:35:44,376 INFO L226 Difference]: Without dead ends: 17 [2019-08-05 10:35:44,377 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-08-05 10:35:44,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-08-05 10:35:44,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-08-05 10:35:44,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-08-05 10:35:44,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-08-05 10:35:44,380 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2019-08-05 10:35:44,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:44,380 INFO L475 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-08-05 10:35:44,380 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-08-05 10:35:44,380 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-08-05 10:35:44,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-08-05 10:35:44,381 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:44,381 INFO L399 BasicCegarLoop]: trace histogram [14, 1, 1] [2019-08-05 10:35:44,381 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:44,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:44,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1328749070, now seen corresponding path program 14 times [2019-08-05 10:35:44,382 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:44,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 16 conjunts are in the unsatisfiable core [2019-08-05 10:35:44,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:44,457 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,558 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,579 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,599 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,612 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,625 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,638 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,652 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,667 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,695 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,710 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,727 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,746 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,764 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:44,764 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:44,764 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2019-08-05 10:35:44,765 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-08-05 10:35:44,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-08-05 10:35:44,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2019-08-05 10:35:44,766 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 17 states. [2019-08-05 10:35:44,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:44,790 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-08-05 10:35:44,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-08-05 10:35:44,790 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 16 [2019-08-05 10:35:44,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:44,791 INFO L225 Difference]: With dead ends: 18 [2019-08-05 10:35:44,791 INFO L226 Difference]: Without dead ends: 18 [2019-08-05 10:35:44,792 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2019-08-05 10:35:44,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-08-05 10:35:44,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-08-05 10:35:44,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-08-05 10:35:44,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-08-05 10:35:44,795 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2019-08-05 10:35:44,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:44,796 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-08-05 10:35:44,796 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-08-05 10:35:44,796 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-08-05 10:35:44,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-08-05 10:35:44,796 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:44,797 INFO L399 BasicCegarLoop]: trace histogram [15, 1, 1] [2019-08-05 10:35:44,797 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:44,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:44,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1758451993, now seen corresponding path program 15 times [2019-08-05 10:35:44,798 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:44,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 17 conjunts are in the unsatisfiable core [2019-08-05 10:35:44,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:44,835 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,847 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,940 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,950 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,976 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:44,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,003 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,019 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,048 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,071 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,100 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,233 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,251 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,442 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,465 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:45,465 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:45,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2019-08-05 10:35:45,466 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-08-05 10:35:45,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-08-05 10:35:45,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2019-08-05 10:35:45,467 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 18 states. [2019-08-05 10:35:45,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:45,663 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-08-05 10:35:45,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-08-05 10:35:45,663 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 17 [2019-08-05 10:35:45,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:45,664 INFO L225 Difference]: With dead ends: 19 [2019-08-05 10:35:45,664 INFO L226 Difference]: Without dead ends: 19 [2019-08-05 10:35:45,665 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2019-08-05 10:35:45,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-08-05 10:35:45,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-08-05 10:35:45,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-08-05 10:35:45,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-08-05 10:35:45,668 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2019-08-05 10:35:45,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:45,668 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-08-05 10:35:45,668 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-08-05 10:35:45,668 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-08-05 10:35:45,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-08-05 10:35:45,669 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:45,669 INFO L399 BasicCegarLoop]: trace histogram [16, 1, 1] [2019-08-05 10:35:45,669 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:45,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:45,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1322562862, now seen corresponding path program 16 times [2019-08-05 10:35:45,670 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:45,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 18 conjunts are in the unsatisfiable core [2019-08-05 10:35:45,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:45,758 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,788 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,823 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,857 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,868 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,898 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,914 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,931 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,955 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,970 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:45,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,006 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,055 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,074 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,097 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:46,097 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:46,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2019-08-05 10:35:46,098 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-08-05 10:35:46,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-08-05 10:35:46,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2019-08-05 10:35:46,099 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 19 states. [2019-08-05 10:35:46,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:46,147 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-08-05 10:35:46,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-08-05 10:35:46,147 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 18 [2019-08-05 10:35:46,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:46,148 INFO L225 Difference]: With dead ends: 20 [2019-08-05 10:35:46,148 INFO L226 Difference]: Without dead ends: 20 [2019-08-05 10:35:46,149 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2019-08-05 10:35:46,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-08-05 10:35:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-08-05 10:35:46,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-08-05 10:35:46,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-08-05 10:35:46,152 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2019-08-05 10:35:46,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:46,153 INFO L475 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-08-05 10:35:46,153 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-08-05 10:35:46,153 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-08-05 10:35:46,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-08-05 10:35:46,154 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:46,154 INFO L399 BasicCegarLoop]: trace histogram [17, 1, 1] [2019-08-05 10:35:46,154 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:46,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:46,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1950224441, now seen corresponding path program 17 times [2019-08-05 10:35:46,155 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:46,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 19 conjunts are in the unsatisfiable core [2019-08-05 10:35:46,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:46,207 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,235 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,244 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,253 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,266 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,277 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,290 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,303 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,317 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,331 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,346 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,403 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,423 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,485 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,531 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,566 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:46,566 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:46,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2019-08-05 10:35:46,567 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-08-05 10:35:46,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-08-05 10:35:46,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2019-08-05 10:35:46,568 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 20 states. [2019-08-05 10:35:46,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:46,613 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-08-05 10:35:46,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-08-05 10:35:46,613 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2019-08-05 10:35:46,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:46,613 INFO L225 Difference]: With dead ends: 21 [2019-08-05 10:35:46,613 INFO L226 Difference]: Without dead ends: 21 [2019-08-05 10:35:46,614 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2019-08-05 10:35:46,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-08-05 10:35:46,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-08-05 10:35:46,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-08-05 10:35:46,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-08-05 10:35:46,617 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 19 [2019-08-05 10:35:46,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:46,617 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2019-08-05 10:35:46,617 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-08-05 10:35:46,617 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-08-05 10:35:46,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-08-05 10:35:46,618 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:46,618 INFO L399 BasicCegarLoop]: trace histogram [18, 1, 1] [2019-08-05 10:35:46,618 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:46,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:46,618 INFO L82 PathProgramCache]: Analyzing trace with hash 327415730, now seen corresponding path program 18 times [2019-08-05 10:35:46,619 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:46,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 20 conjunts are in the unsatisfiable core [2019-08-05 10:35:46,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:46,661 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,707 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,717 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,729 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,740 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,754 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,768 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,782 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,797 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,816 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,831 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,848 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,889 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,907 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,925 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,951 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,974 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:46,996 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:46,997 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:46,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2019-08-05 10:35:46,998 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-08-05 10:35:46,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-08-05 10:35:46,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2019-08-05 10:35:46,999 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 21 states. [2019-08-05 10:35:47,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:47,064 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-08-05 10:35:47,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-08-05 10:35:47,065 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 20 [2019-08-05 10:35:47,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:47,066 INFO L225 Difference]: With dead ends: 22 [2019-08-05 10:35:47,066 INFO L226 Difference]: Without dead ends: 22 [2019-08-05 10:35:47,067 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2019-08-05 10:35:47,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-08-05 10:35:47,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-08-05 10:35:47,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-08-05 10:35:47,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-08-05 10:35:47,070 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 20 [2019-08-05 10:35:47,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:47,070 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2019-08-05 10:35:47,070 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-08-05 10:35:47,070 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-08-05 10:35:47,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-08-05 10:35:47,071 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:47,071 INFO L399 BasicCegarLoop]: trace histogram [19, 1, 1] [2019-08-05 10:35:47,071 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:47,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:47,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1559953241, now seen corresponding path program 19 times [2019-08-05 10:35:47,072 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:47,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 21 conjunts are in the unsatisfiable core [2019-08-05 10:35:47,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:47,117 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,145 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,153 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,174 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,210 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,226 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,280 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,437 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:35:47,438 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,454 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,487 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,503 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,548 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,566 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,587 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,630 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,657 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:47,658 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:47,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2019-08-05 10:35:47,659 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-08-05 10:35:47,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-08-05 10:35:47,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2019-08-05 10:35:47,660 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 22 states. [2019-08-05 10:35:47,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:47,694 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-08-05 10:35:47,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-08-05 10:35:47,694 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 21 [2019-08-05 10:35:47,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:47,695 INFO L225 Difference]: With dead ends: 23 [2019-08-05 10:35:47,695 INFO L226 Difference]: Without dead ends: 23 [2019-08-05 10:35:47,696 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2019-08-05 10:35:47,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-08-05 10:35:47,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-08-05 10:35:47,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-08-05 10:35:47,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2019-08-05 10:35:47,700 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 21 [2019-08-05 10:35:47,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:47,701 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2019-08-05 10:35:47,701 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-08-05 10:35:47,701 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-08-05 10:35:47,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-08-05 10:35:47,702 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:47,702 INFO L399 BasicCegarLoop]: trace histogram [20, 1, 1] [2019-08-05 10:35:47,702 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:47,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:47,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1113910418, now seen corresponding path program 20 times [2019-08-05 10:35:47,703 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:47,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 22 conjunts are in the unsatisfiable core [2019-08-05 10:35:47,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:47,776 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,919 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,934 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,944 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,958 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,972 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:47,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,004 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,031 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,047 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,067 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,089 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,135 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,153 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,170 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,190 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,210 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,232 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,251 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,302 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,330 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:48,330 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:48,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2019-08-05 10:35:48,331 INFO L454 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-08-05 10:35:48,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-08-05 10:35:48,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2019-08-05 10:35:48,332 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 23 states. [2019-08-05 10:35:48,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:48,374 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-08-05 10:35:48,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-08-05 10:35:48,375 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 22 [2019-08-05 10:35:48,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:48,376 INFO L225 Difference]: With dead ends: 24 [2019-08-05 10:35:48,376 INFO L226 Difference]: Without dead ends: 24 [2019-08-05 10:35:48,377 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2019-08-05 10:35:48,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-08-05 10:35:48,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-08-05 10:35:48,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-08-05 10:35:48,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-08-05 10:35:48,379 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2019-08-05 10:35:48,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:48,380 INFO L475 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-08-05 10:35:48,380 INFO L476 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-08-05 10:35:48,380 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-08-05 10:35:48,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-08-05 10:35:48,380 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:48,381 INFO L399 BasicCegarLoop]: trace histogram [21, 1, 1] [2019-08-05 10:35:48,381 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:48,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:48,381 INFO L82 PathProgramCache]: Analyzing trace with hash 171484793, now seen corresponding path program 21 times [2019-08-05 10:35:48,382 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:48,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 23 conjunts are in the unsatisfiable core [2019-08-05 10:35:48,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:48,464 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,524 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,558 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,569 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,604 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,618 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,631 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,647 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,663 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,680 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,697 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,716 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,734 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,757 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,782 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,805 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,826 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,848 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:48,873 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:48,873 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:48,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2019-08-05 10:35:48,874 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-08-05 10:35:48,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-08-05 10:35:48,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2019-08-05 10:35:48,875 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 24 states. [2019-08-05 10:35:48,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:48,927 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-08-05 10:35:48,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-08-05 10:35:48,930 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 23 [2019-08-05 10:35:48,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:48,930 INFO L225 Difference]: With dead ends: 25 [2019-08-05 10:35:48,930 INFO L226 Difference]: Without dead ends: 25 [2019-08-05 10:35:48,931 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2019-08-05 10:35:48,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-08-05 10:35:48,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-08-05 10:35:48,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-08-05 10:35:48,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2019-08-05 10:35:48,934 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2019-08-05 10:35:48,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:48,934 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2019-08-05 10:35:48,934 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-08-05 10:35:48,935 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-08-05 10:35:48,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-08-05 10:35:48,935 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:48,935 INFO L399 BasicCegarLoop]: trace histogram [22, 1, 1] [2019-08-05 10:35:48,936 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:48,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:48,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1021061490, now seen corresponding path program 22 times [2019-08-05 10:35:48,937 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:48,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 24 conjunts are in the unsatisfiable core [2019-08-05 10:35:48,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:49,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,035 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,053 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,063 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,074 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,084 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,098 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,208 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,343 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,358 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,374 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,390 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,406 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,426 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,451 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,470 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,489 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,521 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,541 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,562 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,589 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,615 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,649 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:49,649 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:49,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2019-08-05 10:35:49,650 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-08-05 10:35:49,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-08-05 10:35:49,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2019-08-05 10:35:49,650 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 25 states. [2019-08-05 10:35:49,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:49,677 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-08-05 10:35:49,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-08-05 10:35:49,677 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 24 [2019-08-05 10:35:49,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:49,678 INFO L225 Difference]: With dead ends: 26 [2019-08-05 10:35:49,678 INFO L226 Difference]: Without dead ends: 26 [2019-08-05 10:35:49,679 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2019-08-05 10:35:49,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-08-05 10:35:49,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-08-05 10:35:49,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-08-05 10:35:49,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-08-05 10:35:49,682 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 24 [2019-08-05 10:35:49,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:49,682 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-08-05 10:35:49,682 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-08-05 10:35:49,682 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-08-05 10:35:49,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-08-05 10:35:49,683 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:49,683 INFO L399 BasicCegarLoop]: trace histogram [23, 1, 1] [2019-08-05 10:35:49,683 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:49,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:49,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1588135321, now seen corresponding path program 23 times [2019-08-05 10:35:49,684 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:49,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2019-08-05 10:35:49,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:49,751 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,794 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,804 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,816 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,859 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,887 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,902 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,934 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,950 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,968 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:49,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,030 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,054 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,119 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,157 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,206 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:50,207 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:50,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2019-08-05 10:35:50,207 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-08-05 10:35:50,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-08-05 10:35:50,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2019-08-05 10:35:50,209 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 26 states. [2019-08-05 10:35:50,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:50,252 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-08-05 10:35:50,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-08-05 10:35:50,252 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 25 [2019-08-05 10:35:50,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:50,253 INFO L225 Difference]: With dead ends: 27 [2019-08-05 10:35:50,253 INFO L226 Difference]: Without dead ends: 27 [2019-08-05 10:35:50,253 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2019-08-05 10:35:50,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-08-05 10:35:50,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-08-05 10:35:50,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-08-05 10:35:50,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2019-08-05 10:35:50,256 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2019-08-05 10:35:50,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:50,257 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2019-08-05 10:35:50,257 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-08-05 10:35:50,257 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-08-05 10:35:50,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-08-05 10:35:50,257 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:50,258 INFO L399 BasicCegarLoop]: trace histogram [24, 1, 1] [2019-08-05 10:35:50,258 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:50,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:50,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1987554898, now seen corresponding path program 24 times [2019-08-05 10:35:50,259 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:50,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 26 conjunts are in the unsatisfiable core [2019-08-05 10:35:50,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:50,319 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,361 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,370 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,381 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,391 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,401 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,415 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,429 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,445 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,459 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,476 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,492 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,554 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,572 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,615 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,637 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,660 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,725 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:50,756 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,139 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,207 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:51,208 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:51,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2019-08-05 10:35:51,208 INFO L454 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-08-05 10:35:51,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-08-05 10:35:51,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2019-08-05 10:35:51,209 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 27 states. [2019-08-05 10:35:51,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:51,287 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-08-05 10:35:51,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-08-05 10:35:51,288 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 26 [2019-08-05 10:35:51,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:51,288 INFO L225 Difference]: With dead ends: 28 [2019-08-05 10:35:51,288 INFO L226 Difference]: Without dead ends: 28 [2019-08-05 10:35:51,289 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2019-08-05 10:35:51,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-08-05 10:35:51,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-08-05 10:35:51,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-08-05 10:35:51,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2019-08-05 10:35:51,292 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2019-08-05 10:35:51,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:51,292 INFO L475 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2019-08-05 10:35:51,292 INFO L476 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-08-05 10:35:51,292 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2019-08-05 10:35:51,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-08-05 10:35:51,293 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:51,293 INFO L399 BasicCegarLoop]: trace histogram [25, 1, 1] [2019-08-05 10:35:51,293 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:51,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:51,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1484659897, now seen corresponding path program 25 times [2019-08-05 10:35:51,294 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:51,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 27 conjunts are in the unsatisfiable core [2019-08-05 10:35:51,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:51,333 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,347 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,355 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,364 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,374 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,397 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,409 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,422 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,437 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,452 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,469 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,486 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,505 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,525 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,546 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,564 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,587 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,630 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,676 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,702 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,725 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,963 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:51,993 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:51,993 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:51,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2019-08-05 10:35:51,993 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-08-05 10:35:51,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-08-05 10:35:51,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2019-08-05 10:35:51,994 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 28 states. [2019-08-05 10:35:52,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:52,029 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-08-05 10:35:52,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-08-05 10:35:52,030 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 27 [2019-08-05 10:35:52,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:52,030 INFO L225 Difference]: With dead ends: 29 [2019-08-05 10:35:52,030 INFO L226 Difference]: Without dead ends: 29 [2019-08-05 10:35:52,031 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2019-08-05 10:35:52,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-08-05 10:35:52,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-08-05 10:35:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-08-05 10:35:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2019-08-05 10:35:52,035 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 27 [2019-08-05 10:35:52,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:52,035 INFO L475 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2019-08-05 10:35:52,035 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-08-05 10:35:52,035 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-08-05 10:35:52,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-08-05 10:35:52,036 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:52,036 INFO L399 BasicCegarLoop]: trace histogram [26, 1, 1] [2019-08-05 10:35:52,036 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:52,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:52,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1220183246, now seen corresponding path program 26 times [2019-08-05 10:35:52,037 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:52,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 28 conjunts are in the unsatisfiable core [2019-08-05 10:35:52,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:52,111 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,283 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:35:52,283 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,483 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:35:52,484 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,623 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,634 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,647 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,663 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,698 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,713 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,727 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,742 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,758 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,777 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,794 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,812 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,832 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,857 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,879 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,902 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,924 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,948 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:52,972 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:53,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:53,037 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:53,485 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:53,517 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:53,517 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:53,517 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2019-08-05 10:35:53,518 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-08-05 10:35:53,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-08-05 10:35:53,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2019-08-05 10:35:53,519 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 29 states. [2019-08-05 10:35:53,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:53,579 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-08-05 10:35:53,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-08-05 10:35:53,579 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 28 [2019-08-05 10:35:53,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:53,580 INFO L225 Difference]: With dead ends: 30 [2019-08-05 10:35:53,580 INFO L226 Difference]: Without dead ends: 30 [2019-08-05 10:35:53,581 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2019-08-05 10:35:53,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-08-05 10:35:53,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-08-05 10:35:53,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-08-05 10:35:53,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2019-08-05 10:35:53,583 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 28 [2019-08-05 10:35:53,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:53,584 INFO L475 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2019-08-05 10:35:53,584 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-08-05 10:35:53,584 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2019-08-05 10:35:53,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-08-05 10:35:53,585 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:53,585 INFO L399 BasicCegarLoop]: trace histogram [27, 1, 1] [2019-08-05 10:35:53,585 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:53,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:53,585 INFO L82 PathProgramCache]: Analyzing trace with hash 829025241, now seen corresponding path program 27 times [2019-08-05 10:35:53,586 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:53,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 29 conjunts are in the unsatisfiable core [2019-08-05 10:35:53,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:53,635 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:53,656 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:53,664 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:53,891 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:35:53,892 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,145 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:35:54,146 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,315 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,332 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,345 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,360 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,375 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,390 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,406 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,423 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,439 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,456 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,474 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,493 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,635 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,655 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,680 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,704 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,729 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,752 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,778 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,807 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,862 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:54,894 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:54,894 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:54,894 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2019-08-05 10:35:54,895 INFO L454 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-08-05 10:35:54,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-08-05 10:35:54,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2019-08-05 10:35:54,896 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 30 states. [2019-08-05 10:35:55,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:55,134 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2019-08-05 10:35:55,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-08-05 10:35:55,135 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 29 [2019-08-05 10:35:55,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:55,136 INFO L225 Difference]: With dead ends: 31 [2019-08-05 10:35:55,136 INFO L226 Difference]: Without dead ends: 31 [2019-08-05 10:35:55,137 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2019-08-05 10:35:55,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-08-05 10:35:55,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-08-05 10:35:55,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-08-05 10:35:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2019-08-05 10:35:55,142 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 29 [2019-08-05 10:35:55,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:55,142 INFO L475 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2019-08-05 10:35:55,142 INFO L476 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-08-05 10:35:55,142 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-08-05 10:35:55,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-08-05 10:35:55,143 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:55,143 INFO L399 BasicCegarLoop]: trace histogram [28, 1, 1] [2019-08-05 10:35:55,143 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:55,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:55,143 INFO L82 PathProgramCache]: Analyzing trace with hash -70021102, now seen corresponding path program 28 times [2019-08-05 10:35:55,144 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:55,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 30 conjunts are in the unsatisfiable core [2019-08-05 10:35:55,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:55,210 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,378 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:35:55,379 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,391 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,400 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,427 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,452 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,467 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,481 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,495 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,511 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,526 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,541 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,558 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,577 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,596 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,615 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,635 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,656 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,685 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,714 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,748 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,856 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,883 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,910 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,939 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:55,967 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:55,968 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:55,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2019-08-05 10:35:55,968 INFO L454 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-08-05 10:35:55,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-08-05 10:35:55,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2019-08-05 10:35:55,969 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 31 states. [2019-08-05 10:35:56,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:56,022 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2019-08-05 10:35:56,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-08-05 10:35:56,023 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 30 [2019-08-05 10:35:56,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:56,023 INFO L225 Difference]: With dead ends: 32 [2019-08-05 10:35:56,023 INFO L226 Difference]: Without dead ends: 32 [2019-08-05 10:35:56,024 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2019-08-05 10:35:56,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-08-05 10:35:56,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-08-05 10:35:56,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-08-05 10:35:56,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2019-08-05 10:35:56,028 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 30 [2019-08-05 10:35:56,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:56,029 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2019-08-05 10:35:56,029 INFO L476 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-08-05 10:35:56,029 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2019-08-05 10:35:56,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-08-05 10:35:56,029 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:56,030 INFO L399 BasicCegarLoop]: trace histogram [29, 1, 1] [2019-08-05 10:35:56,030 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:56,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:56,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2124313337, now seen corresponding path program 29 times [2019-08-05 10:35:56,031 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:56,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 31 conjunts are in the unsatisfiable core [2019-08-05 10:35:56,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:56,080 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,102 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,134 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,144 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,166 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,191 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,233 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,266 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,285 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,302 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,319 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,338 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,360 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,406 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,428 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,451 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,478 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,530 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,557 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,584 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,614 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,649 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:56,679 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:56,680 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:56,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2019-08-05 10:35:56,680 INFO L454 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-08-05 10:35:56,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-08-05 10:35:56,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2019-08-05 10:35:56,681 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 32 states. [2019-08-05 10:35:56,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:56,799 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2019-08-05 10:35:56,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-08-05 10:35:56,800 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 31 [2019-08-05 10:35:56,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:56,800 INFO L225 Difference]: With dead ends: 33 [2019-08-05 10:35:56,800 INFO L226 Difference]: Without dead ends: 33 [2019-08-05 10:35:56,801 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2019-08-05 10:35:56,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-08-05 10:35:56,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-08-05 10:35:56,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-08-05 10:35:56,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2019-08-05 10:35:56,804 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 31 [2019-08-05 10:35:56,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:56,804 INFO L475 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2019-08-05 10:35:56,804 INFO L476 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-08-05 10:35:56,805 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2019-08-05 10:35:56,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-08-05 10:35:56,805 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:56,805 INFO L399 BasicCegarLoop]: trace histogram [30, 1, 1] [2019-08-05 10:35:56,805 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:56,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:56,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1429204210, now seen corresponding path program 30 times [2019-08-05 10:35:56,806 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:56,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 32 conjunts are in the unsatisfiable core [2019-08-05 10:35:56,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:56,869 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,053 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:35:57,054 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,236 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:35:57,237 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,461 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:35:57,462 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,702 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:35:57,703 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,733 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,744 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,757 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,770 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,798 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,853 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,879 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,896 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,916 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,938 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,960 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:57,981 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,014 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,056 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,077 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,100 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,125 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,150 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,177 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,207 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,235 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,264 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,299 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:58,300 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:58,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2019-08-05 10:35:58,300 INFO L454 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-08-05 10:35:58,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-08-05 10:35:58,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2019-08-05 10:35:58,301 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 33 states. [2019-08-05 10:35:58,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:58,344 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-08-05 10:35:58,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-08-05 10:35:58,345 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 32 [2019-08-05 10:35:58,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:58,345 INFO L225 Difference]: With dead ends: 34 [2019-08-05 10:35:58,345 INFO L226 Difference]: Without dead ends: 34 [2019-08-05 10:35:58,346 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2019-08-05 10:35:58,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-08-05 10:35:58,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-08-05 10:35:58,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-08-05 10:35:58,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2019-08-05 10:35:58,349 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 32 [2019-08-05 10:35:58,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:58,349 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2019-08-05 10:35:58,349 INFO L476 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-08-05 10:35:58,350 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2019-08-05 10:35:58,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-08-05 10:35:58,350 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:58,350 INFO L399 BasicCegarLoop]: trace histogram [31, 1, 1] [2019-08-05 10:35:58,350 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:58,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:58,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1355657753, now seen corresponding path program 31 times [2019-08-05 10:35:58,351 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:58,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 33 conjunts are in the unsatisfiable core [2019-08-05 10:35:58,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:58,429 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,491 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,527 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,551 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,566 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,579 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,595 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,611 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,629 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,646 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,673 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,739 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,763 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,822 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,843 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,866 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,891 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,916 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,944 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:58,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,015 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,043 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,073 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,103 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,163 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:59,163 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:59,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2019-08-05 10:35:59,164 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-08-05 10:35:59,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-08-05 10:35:59,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2019-08-05 10:35:59,165 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 34 states. [2019-08-05 10:35:59,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:35:59,211 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2019-08-05 10:35:59,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-08-05 10:35:59,212 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 33 [2019-08-05 10:35:59,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:35:59,213 INFO L225 Difference]: With dead ends: 35 [2019-08-05 10:35:59,213 INFO L226 Difference]: Without dead ends: 35 [2019-08-05 10:35:59,214 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2019-08-05 10:35:59,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-08-05 10:35:59,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-08-05 10:35:59,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-08-05 10:35:59,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2019-08-05 10:35:59,216 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 33 [2019-08-05 10:35:59,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:35:59,217 INFO L475 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2019-08-05 10:35:59,217 INFO L476 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-08-05 10:35:59,217 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2019-08-05 10:35:59,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-08-05 10:35:59,217 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:35:59,217 INFO L399 BasicCegarLoop]: trace histogram [32, 1, 1] [2019-08-05 10:35:59,218 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:35:59,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:35:59,218 INFO L82 PathProgramCache]: Analyzing trace with hash -924282414, now seen corresponding path program 32 times [2019-08-05 10:35:59,219 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:35:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:35:59,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 34 conjunts are in the unsatisfiable core [2019-08-05 10:35:59,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:35:59,258 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,280 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,289 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,298 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,308 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,319 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,331 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,342 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,359 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,378 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,398 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,418 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,436 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,454 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,499 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,558 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,602 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,649 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,699 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,724 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,749 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,801 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,862 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,891 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,953 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:35:59,987 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:35:59,988 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:35:59,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2019-08-05 10:35:59,989 INFO L454 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-08-05 10:35:59,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-08-05 10:35:59,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2019-08-05 10:35:59,990 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 35 states. [2019-08-05 10:36:00,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:00,034 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2019-08-05 10:36:00,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-08-05 10:36:00,035 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 34 [2019-08-05 10:36:00,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:00,035 INFO L225 Difference]: With dead ends: 36 [2019-08-05 10:36:00,035 INFO L226 Difference]: Without dead ends: 36 [2019-08-05 10:36:00,037 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2019-08-05 10:36:00,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-08-05 10:36:00,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-08-05 10:36:00,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-08-05 10:36:00,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2019-08-05 10:36:00,040 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34 [2019-08-05 10:36:00,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:00,040 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2019-08-05 10:36:00,040 INFO L476 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-08-05 10:36:00,040 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2019-08-05 10:36:00,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-08-05 10:36:00,041 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:00,041 INFO L399 BasicCegarLoop]: trace histogram [33, 1, 1] [2019-08-05 10:36:00,041 INFO L418 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:00,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:00,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1412016441, now seen corresponding path program 33 times [2019-08-05 10:36:00,042 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:00,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 35 conjunts are in the unsatisfiable core [2019-08-05 10:36:00,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:00,115 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:00,287 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:36:00,288 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:00,499 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:36:00,500 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:00,661 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:00,671 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:00,783 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:00,795 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:00,870 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:00,896 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:00,911 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:00,946 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:00,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:00,977 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:00,996 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,014 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,032 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,051 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,072 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,093 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,112 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,135 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,160 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,183 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,209 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,269 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,333 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,360 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,389 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,418 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,447 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,477 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,528 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,576 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:01,577 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:01,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2019-08-05 10:36:01,577 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-08-05 10:36:01,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-08-05 10:36:01,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2019-08-05 10:36:01,579 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 36 states. [2019-08-05 10:36:01,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:01,618 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-08-05 10:36:01,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-08-05 10:36:01,619 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 35 [2019-08-05 10:36:01,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:01,620 INFO L225 Difference]: With dead ends: 37 [2019-08-05 10:36:01,620 INFO L226 Difference]: Without dead ends: 37 [2019-08-05 10:36:01,621 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2019-08-05 10:36:01,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-08-05 10:36:01,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-08-05 10:36:01,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-08-05 10:36:01,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2019-08-05 10:36:01,624 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 35 [2019-08-05 10:36:01,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:01,624 INFO L475 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2019-08-05 10:36:01,624 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-08-05 10:36:01,625 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2019-08-05 10:36:01,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-08-05 10:36:01,625 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:01,625 INFO L399 BasicCegarLoop]: trace histogram [34, 1, 1] [2019-08-05 10:36:01,625 INFO L418 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:01,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:01,626 INFO L82 PathProgramCache]: Analyzing trace with hash 822836914, now seen corresponding path program 34 times [2019-08-05 10:36:01,626 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:01,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 36 conjunts are in the unsatisfiable core [2019-08-05 10:36:01,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:01,679 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,752 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,760 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,768 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,779 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,791 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,804 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,817 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,831 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,845 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,866 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,881 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,898 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,915 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,931 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,950 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,968 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:01,988 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,012 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,033 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,055 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,078 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,103 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,127 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,155 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,208 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,236 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,267 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,300 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,329 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,360 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,392 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,427 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,489 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:02,489 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:02,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2019-08-05 10:36:02,490 INFO L454 AbstractCegarLoop]: Interpolant automaton has 37 states [2019-08-05 10:36:02,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2019-08-05 10:36:02,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2019-08-05 10:36:02,491 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 37 states. [2019-08-05 10:36:02,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:02,547 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2019-08-05 10:36:02,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-08-05 10:36:02,547 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 36 [2019-08-05 10:36:02,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:02,548 INFO L225 Difference]: With dead ends: 38 [2019-08-05 10:36:02,548 INFO L226 Difference]: Without dead ends: 38 [2019-08-05 10:36:02,548 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2019-08-05 10:36:02,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-08-05 10:36:02,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-08-05 10:36:02,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-08-05 10:36:02,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2019-08-05 10:36:02,550 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 36 [2019-08-05 10:36:02,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:02,550 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2019-08-05 10:36:02,550 INFO L476 AbstractCegarLoop]: Interpolant automaton has 37 states. [2019-08-05 10:36:02,550 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2019-08-05 10:36:02,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-08-05 10:36:02,550 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:02,550 INFO L399 BasicCegarLoop]: trace histogram [35, 1, 1] [2019-08-05 10:36:02,550 INFO L418 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:02,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:02,551 INFO L82 PathProgramCache]: Analyzing trace with hash -261859239, now seen corresponding path program 35 times [2019-08-05 10:36:02,551 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:02,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 37 conjunts are in the unsatisfiable core [2019-08-05 10:36:02,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:02,610 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,625 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,689 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,706 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,739 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,769 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,783 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,795 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,812 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,827 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,842 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,859 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,876 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,932 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,953 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:02,974 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,000 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,023 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,046 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,074 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,107 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,145 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,222 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,254 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,283 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,311 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,340 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,373 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,404 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,439 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,474 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,513 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:03,514 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:03,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2019-08-05 10:36:03,514 INFO L454 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-08-05 10:36:03,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-08-05 10:36:03,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2019-08-05 10:36:03,517 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 38 states. [2019-08-05 10:36:03,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:03,584 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2019-08-05 10:36:03,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-08-05 10:36:03,585 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 37 [2019-08-05 10:36:03,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:03,585 INFO L225 Difference]: With dead ends: 39 [2019-08-05 10:36:03,586 INFO L226 Difference]: Without dead ends: 39 [2019-08-05 10:36:03,587 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2019-08-05 10:36:03,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-08-05 10:36:03,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-08-05 10:36:03,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-08-05 10:36:03,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2019-08-05 10:36:03,590 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 37 [2019-08-05 10:36:03,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:03,590 INFO L475 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2019-08-05 10:36:03,590 INFO L476 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-08-05 10:36:03,590 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2019-08-05 10:36:03,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-08-05 10:36:03,591 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:03,591 INFO L399 BasicCegarLoop]: trace histogram [36, 1, 1] [2019-08-05 10:36:03,591 INFO L418 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:03,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:03,591 INFO L82 PathProgramCache]: Analyzing trace with hash 472298386, now seen corresponding path program 36 times [2019-08-05 10:36:03,592 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:03,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 38 conjunts are in the unsatisfiable core [2019-08-05 10:36:03,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:03,659 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,747 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,764 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,776 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,787 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,799 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,827 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,840 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,855 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,870 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,907 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,925 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,965 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:03,984 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,046 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,068 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,090 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,114 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,138 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,163 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,188 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,247 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,284 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,353 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,417 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,453 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,496 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,620 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,657 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:04,658 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:04,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2019-08-05 10:36:04,658 INFO L454 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-08-05 10:36:04,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-08-05 10:36:04,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2019-08-05 10:36:04,659 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 39 states. [2019-08-05 10:36:04,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:04,748 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2019-08-05 10:36:04,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-08-05 10:36:04,748 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 38 [2019-08-05 10:36:04,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:04,749 INFO L225 Difference]: With dead ends: 40 [2019-08-05 10:36:04,749 INFO L226 Difference]: Without dead ends: 40 [2019-08-05 10:36:04,750 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2019-08-05 10:36:04,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-08-05 10:36:04,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-08-05 10:36:04,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-08-05 10:36:04,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2019-08-05 10:36:04,752 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 38 [2019-08-05 10:36:04,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:04,752 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2019-08-05 10:36:04,753 INFO L476 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-08-05 10:36:04,753 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2019-08-05 10:36:04,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-08-05 10:36:04,753 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:04,753 INFO L399 BasicCegarLoop]: trace histogram [37, 1, 1] [2019-08-05 10:36:04,753 INFO L418 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:04,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:04,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1756348281, now seen corresponding path program 37 times [2019-08-05 10:36:04,754 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:04,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 39 conjunts are in the unsatisfiable core [2019-08-05 10:36:04,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:04,837 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:04,990 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:36:04,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,003 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,011 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,021 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,032 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,044 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,056 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,069 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,112 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,126 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,141 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,157 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,174 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,255 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,287 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,309 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,331 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,354 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,379 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,403 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,428 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,454 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,480 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,508 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,537 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,565 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,595 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,659 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,725 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,758 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,793 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:05,832 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:05,833 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:05,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2019-08-05 10:36:05,833 INFO L454 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-08-05 10:36:05,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-08-05 10:36:05,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2019-08-05 10:36:05,834 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 40 states. [2019-08-05 10:36:05,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:05,892 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2019-08-05 10:36:05,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-08-05 10:36:05,893 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 39 [2019-08-05 10:36:05,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:05,894 INFO L225 Difference]: With dead ends: 41 [2019-08-05 10:36:05,894 INFO L226 Difference]: Without dead ends: 41 [2019-08-05 10:36:05,895 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2019-08-05 10:36:05,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-08-05 10:36:05,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-08-05 10:36:05,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-08-05 10:36:05,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2019-08-05 10:36:05,897 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 39 [2019-08-05 10:36:05,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:05,897 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2019-08-05 10:36:05,897 INFO L476 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-08-05 10:36:05,897 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2019-08-05 10:36:05,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-08-05 10:36:05,898 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:05,898 INFO L399 BasicCegarLoop]: trace histogram [38, 1, 1] [2019-08-05 10:36:05,898 INFO L418 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:05,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:05,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1387777934, now seen corresponding path program 38 times [2019-08-05 10:36:05,899 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:05,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 40 conjunts are in the unsatisfiable core [2019-08-05 10:36:05,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:05,963 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,136 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:36:06,137 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,174 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,184 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,193 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,216 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,229 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,259 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,289 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,305 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,339 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,356 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,378 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,442 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,488 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,512 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,562 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,585 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,610 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,636 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,663 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,719 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,759 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,801 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,845 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,876 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,946 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:06,979 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,012 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,047 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:07,083 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:07,083 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2019-08-05 10:36:07,083 INFO L454 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-08-05 10:36:07,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-08-05 10:36:07,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2019-08-05 10:36:07,084 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 41 states. [2019-08-05 10:36:07,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:07,133 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2019-08-05 10:36:07,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-08-05 10:36:07,133 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 40 [2019-08-05 10:36:07,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:07,134 INFO L225 Difference]: With dead ends: 42 [2019-08-05 10:36:07,134 INFO L226 Difference]: Without dead ends: 42 [2019-08-05 10:36:07,135 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2019-08-05 10:36:07,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-08-05 10:36:07,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-08-05 10:36:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-08-05 10:36:07,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2019-08-05 10:36:07,138 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 40 [2019-08-05 10:36:07,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:07,138 INFO L475 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2019-08-05 10:36:07,138 INFO L476 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-08-05 10:36:07,138 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2019-08-05 10:36:07,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-08-05 10:36:07,139 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:07,139 INFO L399 BasicCegarLoop]: trace histogram [39, 1, 1] [2019-08-05 10:36:07,139 INFO L418 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:07,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:07,139 INFO L82 PathProgramCache]: Analyzing trace with hash -71442791, now seen corresponding path program 39 times [2019-08-05 10:36:07,140 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:07,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 41 conjunts are in the unsatisfiable core [2019-08-05 10:36:07,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:07,214 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,235 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,243 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,252 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,262 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,272 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,283 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,295 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,309 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,325 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,340 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,356 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,371 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,541 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,558 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,577 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,598 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,619 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,648 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,736 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,815 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,855 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:07,980 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,034 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,062 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,092 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,122 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,151 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,214 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,277 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,348 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,383 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,420 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:08,494 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:08,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2019-08-05 10:36:08,495 INFO L454 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-08-05 10:36:08,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-08-05 10:36:08,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2019-08-05 10:36:08,496 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 42 states. [2019-08-05 10:36:08,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:08,544 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2019-08-05 10:36:08,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-08-05 10:36:08,544 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 41 [2019-08-05 10:36:08,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:08,545 INFO L225 Difference]: With dead ends: 43 [2019-08-05 10:36:08,545 INFO L226 Difference]: Without dead ends: 43 [2019-08-05 10:36:08,546 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2019-08-05 10:36:08,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-08-05 10:36:08,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-08-05 10:36:08,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-08-05 10:36:08,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2019-08-05 10:36:08,548 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 41 [2019-08-05 10:36:08,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:08,548 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2019-08-05 10:36:08,548 INFO L476 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-08-05 10:36:08,548 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2019-08-05 10:36:08,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-08-05 10:36:08,549 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:08,549 INFO L399 BasicCegarLoop]: trace histogram [40, 1, 1] [2019-08-05 10:36:08,549 INFO L418 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:08,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:08,549 INFO L82 PathProgramCache]: Analyzing trace with hash 2080240978, now seen corresponding path program 40 times [2019-08-05 10:36:08,550 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:08,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 42 conjunts are in the unsatisfiable core [2019-08-05 10:36:08,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:08,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,634 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,664 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,674 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,685 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,696 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,711 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,731 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,745 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,760 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,791 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,811 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,868 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,887 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,937 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,957 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:08,980 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,004 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,028 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,051 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,077 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,102 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,127 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,155 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,183 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,211 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,242 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,271 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,302 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,334 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,372 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,407 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,443 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,497 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,574 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,614 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,655 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:09,655 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:09,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2019-08-05 10:36:09,656 INFO L454 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-08-05 10:36:09,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-08-05 10:36:09,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2019-08-05 10:36:09,657 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 43 states. [2019-08-05 10:36:09,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:09,734 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2019-08-05 10:36:09,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2019-08-05 10:36:09,735 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 42 [2019-08-05 10:36:09,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:09,735 INFO L225 Difference]: With dead ends: 44 [2019-08-05 10:36:09,735 INFO L226 Difference]: Without dead ends: 44 [2019-08-05 10:36:09,736 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2019-08-05 10:36:09,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-08-05 10:36:09,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-08-05 10:36:09,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-08-05 10:36:09,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2019-08-05 10:36:09,738 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 42 [2019-08-05 10:36:09,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:09,738 INFO L475 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2019-08-05 10:36:09,739 INFO L476 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-08-05 10:36:09,739 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2019-08-05 10:36:09,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-08-05 10:36:09,739 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:09,739 INFO L399 BasicCegarLoop]: trace histogram [41, 1, 1] [2019-08-05 10:36:09,739 INFO L418 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:09,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:09,740 INFO L82 PathProgramCache]: Analyzing trace with hash 62961081, now seen corresponding path program 41 times [2019-08-05 10:36:09,740 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:09,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 43 conjunts are in the unsatisfiable core [2019-08-05 10:36:09,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:09,791 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,809 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,818 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,826 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,847 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,859 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,870 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,885 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,898 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,930 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,948 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,966 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:09,985 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,005 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,045 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,066 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,088 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,110 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,139 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,164 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,190 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,242 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,269 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,342 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,379 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,412 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,476 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,507 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,582 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,614 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,650 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,725 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,760 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,807 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:10,889 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:10,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2019-08-05 10:36:10,889 INFO L454 AbstractCegarLoop]: Interpolant automaton has 44 states [2019-08-05 10:36:10,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2019-08-05 10:36:10,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2019-08-05 10:36:10,891 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 44 states. [2019-08-05 10:36:10,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:10,943 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2019-08-05 10:36:10,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-08-05 10:36:10,944 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 43 [2019-08-05 10:36:10,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:10,944 INFO L225 Difference]: With dead ends: 45 [2019-08-05 10:36:10,945 INFO L226 Difference]: Without dead ends: 45 [2019-08-05 10:36:10,946 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2019-08-05 10:36:10,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-08-05 10:36:10,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-08-05 10:36:10,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-08-05 10:36:10,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2019-08-05 10:36:10,948 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 43 [2019-08-05 10:36:10,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:10,949 INFO L475 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2019-08-05 10:36:10,949 INFO L476 AbstractCegarLoop]: Interpolant automaton has 44 states. [2019-08-05 10:36:10,949 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2019-08-05 10:36:10,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-08-05 10:36:10,950 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:10,950 INFO L399 BasicCegarLoop]: trace histogram [42, 1, 1] [2019-08-05 10:36:10,950 INFO L418 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:10,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:10,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1951793714, now seen corresponding path program 42 times [2019-08-05 10:36:10,951 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:10,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 44 conjunts are in the unsatisfiable core [2019-08-05 10:36:10,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:11,032 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,084 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,092 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,103 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,114 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,125 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,138 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,152 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,165 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,321 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,335 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,366 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,403 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,422 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,442 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,461 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,551 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,572 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,644 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,713 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,738 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,765 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,796 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,841 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,872 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,904 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,935 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:11,967 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,003 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,041 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,075 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,239 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,275 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,405 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,446 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:12,446 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:12,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2019-08-05 10:36:12,447 INFO L454 AbstractCegarLoop]: Interpolant automaton has 45 states [2019-08-05 10:36:12,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2019-08-05 10:36:12,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2019-08-05 10:36:12,448 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 45 states. [2019-08-05 10:36:12,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:12,504 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2019-08-05 10:36:12,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-08-05 10:36:12,504 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 44 [2019-08-05 10:36:12,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:12,505 INFO L225 Difference]: With dead ends: 46 [2019-08-05 10:36:12,505 INFO L226 Difference]: Without dead ends: 46 [2019-08-05 10:36:12,506 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2019-08-05 10:36:12,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-08-05 10:36:12,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-08-05 10:36:12,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-08-05 10:36:12,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2019-08-05 10:36:12,508 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 44 [2019-08-05 10:36:12,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:12,509 INFO L475 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2019-08-05 10:36:12,509 INFO L476 AbstractCegarLoop]: Interpolant automaton has 45 states. [2019-08-05 10:36:12,509 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2019-08-05 10:36:12,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-08-05 10:36:12,509 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:12,509 INFO L399 BasicCegarLoop]: trace histogram [43, 1, 1] [2019-08-05 10:36:12,510 INFO L418 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:12,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:12,510 INFO L82 PathProgramCache]: Analyzing trace with hash 376063193, now seen corresponding path program 43 times [2019-08-05 10:36:12,511 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:12,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 45 conjunts are in the unsatisfiable core [2019-08-05 10:36:12,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:12,591 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,616 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,625 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,636 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,648 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,659 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,672 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,697 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,710 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,726 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,740 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,812 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:12,978 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,062 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,166 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,187 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,208 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,229 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,251 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,274 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,324 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,351 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,380 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,409 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,436 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,464 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,495 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,528 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,560 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,630 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,663 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,697 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,733 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,770 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,809 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,846 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,924 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:13,968 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:13,968 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:13,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2019-08-05 10:36:13,969 INFO L454 AbstractCegarLoop]: Interpolant automaton has 46 states [2019-08-05 10:36:13,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2019-08-05 10:36:13,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2019-08-05 10:36:13,970 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 46 states. [2019-08-05 10:36:14,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:14,027 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2019-08-05 10:36:14,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-08-05 10:36:14,033 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 45 [2019-08-05 10:36:14,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:14,034 INFO L225 Difference]: With dead ends: 47 [2019-08-05 10:36:14,034 INFO L226 Difference]: Without dead ends: 47 [2019-08-05 10:36:14,035 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2019-08-05 10:36:14,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-08-05 10:36:14,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-08-05 10:36:14,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-08-05 10:36:14,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2019-08-05 10:36:14,036 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2019-08-05 10:36:14,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:14,036 INFO L475 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2019-08-05 10:36:14,037 INFO L476 AbstractCegarLoop]: Interpolant automaton has 46 states. [2019-08-05 10:36:14,037 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2019-08-05 10:36:14,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-08-05 10:36:14,037 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:14,037 INFO L399 BasicCegarLoop]: trace histogram [44, 1, 1] [2019-08-05 10:36:14,038 INFO L418 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:14,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:14,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1226942702, now seen corresponding path program 44 times [2019-08-05 10:36:14,038 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:14,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 46 conjunts are in the unsatisfiable core [2019-08-05 10:36:14,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:14,099 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,118 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,127 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,135 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,144 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,166 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,193 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,209 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,223 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,238 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,254 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,273 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,291 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,309 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,330 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,358 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,420 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,440 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,462 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,487 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,511 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,536 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,571 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,599 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,656 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,684 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,715 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,746 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,776 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,851 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,885 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,918 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,953 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:14,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,030 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,068 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,109 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,148 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,187 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,230 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:15,231 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:15,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2019-08-05 10:36:15,231 INFO L454 AbstractCegarLoop]: Interpolant automaton has 47 states [2019-08-05 10:36:15,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2019-08-05 10:36:15,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2019-08-05 10:36:15,232 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 47 states. [2019-08-05 10:36:15,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:15,300 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2019-08-05 10:36:15,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-08-05 10:36:15,301 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 46 [2019-08-05 10:36:15,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:15,301 INFO L225 Difference]: With dead ends: 48 [2019-08-05 10:36:15,301 INFO L226 Difference]: Without dead ends: 48 [2019-08-05 10:36:15,302 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2019-08-05 10:36:15,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-08-05 10:36:15,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2019-08-05 10:36:15,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-08-05 10:36:15,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2019-08-05 10:36:15,304 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 46 [2019-08-05 10:36:15,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:15,305 INFO L475 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2019-08-05 10:36:15,305 INFO L476 AbstractCegarLoop]: Interpolant automaton has 47 states. [2019-08-05 10:36:15,305 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2019-08-05 10:36:15,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-08-05 10:36:15,306 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:15,306 INFO L399 BasicCegarLoop]: trace histogram [45, 1, 1] [2019-08-05 10:36:15,306 INFO L418 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:15,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:15,306 INFO L82 PathProgramCache]: Analyzing trace with hash 619482105, now seen corresponding path program 45 times [2019-08-05 10:36:15,307 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:15,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 47 conjunts are in the unsatisfiable core [2019-08-05 10:36:15,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:15,380 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,428 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,438 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,448 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,459 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,471 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,496 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,511 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,525 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,541 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,558 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,575 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,593 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,611 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,631 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,673 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,696 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,719 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,809 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,835 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,859 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,887 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:15,969 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,002 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,049 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,079 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,109 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,140 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,183 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,216 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,251 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,288 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,329 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,370 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,409 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,448 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,498 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,537 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,578 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,624 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:16,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:16,669 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:16,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2019-08-05 10:36:16,670 INFO L454 AbstractCegarLoop]: Interpolant automaton has 48 states [2019-08-05 10:36:16,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2019-08-05 10:36:16,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2019-08-05 10:36:16,670 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 48 states. [2019-08-05 10:36:17,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:17,031 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2019-08-05 10:36:17,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-08-05 10:36:17,031 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 47 [2019-08-05 10:36:17,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:17,032 INFO L225 Difference]: With dead ends: 49 [2019-08-05 10:36:17,032 INFO L226 Difference]: Without dead ends: 49 [2019-08-05 10:36:17,033 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2019-08-05 10:36:17,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-08-05 10:36:17,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-08-05 10:36:17,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-08-05 10:36:17,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2019-08-05 10:36:17,035 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 47 [2019-08-05 10:36:17,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:17,035 INFO L475 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2019-08-05 10:36:17,035 INFO L476 AbstractCegarLoop]: Interpolant automaton has 48 states. [2019-08-05 10:36:17,035 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2019-08-05 10:36:17,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-08-05 10:36:17,036 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:17,036 INFO L399 BasicCegarLoop]: trace histogram [46, 1, 1] [2019-08-05 10:36:17,036 INFO L418 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:17,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:17,037 INFO L82 PathProgramCache]: Analyzing trace with hash 2024076274, now seen corresponding path program 46 times [2019-08-05 10:36:17,037 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:17,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 48 conjunts are in the unsatisfiable core [2019-08-05 10:36:17,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:17,109 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,188 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,197 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,207 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,218 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,231 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,244 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,257 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,272 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,289 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,304 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,321 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,341 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,361 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,380 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,400 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,423 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,446 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,468 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,491 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,515 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,596 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,658 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,720 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,750 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,780 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,845 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:17,910 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:18,039 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:18,185 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:18,359 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:18,398 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:18,434 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:18,473 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:18,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:18,617 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:18,665 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:18,722 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:18,773 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:18,835 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:18,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:18,882 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:18,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2019-08-05 10:36:18,883 INFO L454 AbstractCegarLoop]: Interpolant automaton has 49 states [2019-08-05 10:36:18,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2019-08-05 10:36:18,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2019-08-05 10:36:18,884 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 49 states. [2019-08-05 10:36:18,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:18,985 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2019-08-05 10:36:18,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-08-05 10:36:18,986 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 48 [2019-08-05 10:36:18,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:18,986 INFO L225 Difference]: With dead ends: 50 [2019-08-05 10:36:18,986 INFO L226 Difference]: Without dead ends: 50 [2019-08-05 10:36:18,987 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2019-08-05 10:36:18,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-08-05 10:36:18,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-08-05 10:36:18,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-08-05 10:36:18,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2019-08-05 10:36:18,989 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 48 [2019-08-05 10:36:18,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:18,989 INFO L475 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2019-08-05 10:36:18,989 INFO L476 AbstractCegarLoop]: Interpolant automaton has 49 states. [2019-08-05 10:36:18,990 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2019-08-05 10:36:18,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-08-05 10:36:18,990 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:18,990 INFO L399 BasicCegarLoop]: trace histogram [47, 1, 1] [2019-08-05 10:36:18,991 INFO L418 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:18,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:18,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1678144743, now seen corresponding path program 47 times [2019-08-05 10:36:18,991 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:19,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 49 conjunts are in the unsatisfiable core [2019-08-05 10:36:19,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:19,033 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,047 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,055 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,065 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,085 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,095 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,106 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,118 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,129 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,143 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,157 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,174 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,190 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,207 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,262 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,282 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,303 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,324 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,353 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,382 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,409 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,434 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,459 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,490 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,517 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,544 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,576 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,606 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,637 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,668 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,700 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,734 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,771 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,810 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,879 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,919 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,954 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:19,997 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,042 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,085 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,127 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,168 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,213 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,261 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:20,308 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:20,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2019-08-05 10:36:20,309 INFO L454 AbstractCegarLoop]: Interpolant automaton has 50 states [2019-08-05 10:36:20,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2019-08-05 10:36:20,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2019-08-05 10:36:20,310 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 50 states. [2019-08-05 10:36:20,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:20,375 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2019-08-05 10:36:20,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-08-05 10:36:20,376 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 49 [2019-08-05 10:36:20,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:20,377 INFO L225 Difference]: With dead ends: 51 [2019-08-05 10:36:20,377 INFO L226 Difference]: Without dead ends: 51 [2019-08-05 10:36:20,378 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2019-08-05 10:36:20,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-08-05 10:36:20,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-08-05 10:36:20,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-08-05 10:36:20,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2019-08-05 10:36:20,379 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 49 [2019-08-05 10:36:20,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:20,379 INFO L475 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2019-08-05 10:36:20,380 INFO L476 AbstractCegarLoop]: Interpolant automaton has 50 states. [2019-08-05 10:36:20,380 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2019-08-05 10:36:20,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-08-05 10:36:20,380 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:20,380 INFO L399 BasicCegarLoop]: trace histogram [48, 1, 1] [2019-08-05 10:36:20,380 INFO L418 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:20,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:20,380 INFO L82 PathProgramCache]: Analyzing trace with hash -482879278, now seen corresponding path program 48 times [2019-08-05 10:36:20,381 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:20,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 50 conjunts are in the unsatisfiable core [2019-08-05 10:36:20,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:20,439 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,460 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,469 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,478 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,490 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,527 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,541 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,557 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,582 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,597 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,614 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,630 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,648 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,666 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,686 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,706 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,725 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,746 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,768 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,792 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,817 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,845 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,871 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,899 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,926 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,953 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:20,983 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,013 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,045 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,080 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,114 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,146 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,220 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,255 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,293 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,328 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,368 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,405 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,450 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,489 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,531 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,570 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,614 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,655 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,702 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:21,752 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:21,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2019-08-05 10:36:21,752 INFO L454 AbstractCegarLoop]: Interpolant automaton has 51 states [2019-08-05 10:36:21,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2019-08-05 10:36:21,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2019-08-05 10:36:21,753 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 51 states. [2019-08-05 10:36:21,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:21,827 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2019-08-05 10:36:21,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-08-05 10:36:21,827 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 50 [2019-08-05 10:36:21,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:21,828 INFO L225 Difference]: With dead ends: 52 [2019-08-05 10:36:21,828 INFO L226 Difference]: Without dead ends: 52 [2019-08-05 10:36:21,829 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2019-08-05 10:36:21,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-08-05 10:36:21,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-08-05 10:36:21,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-08-05 10:36:21,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2019-08-05 10:36:21,831 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 50 [2019-08-05 10:36:21,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:21,832 INFO L475 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2019-08-05 10:36:21,832 INFO L476 AbstractCegarLoop]: Interpolant automaton has 51 states. [2019-08-05 10:36:21,832 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2019-08-05 10:36:21,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-08-05 10:36:21,832 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:21,832 INFO L399 BasicCegarLoop]: trace histogram [49, 1, 1] [2019-08-05 10:36:21,833 INFO L418 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:21,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:21,833 INFO L82 PathProgramCache]: Analyzing trace with hash -2084355527, now seen corresponding path program 49 times [2019-08-05 10:36:21,833 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:21,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 51 conjunts are in the unsatisfiable core [2019-08-05 10:36:21,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:21,869 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,897 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,906 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,927 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,938 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,950 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,962 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,978 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:21,992 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,029 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,047 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,064 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,083 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,103 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,122 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,142 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,164 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,188 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,210 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,233 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,258 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,282 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,316 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,361 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,387 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,416 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,445 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,480 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,547 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,616 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,648 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,681 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,715 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,792 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,834 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,871 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,910 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,949 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:22,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:23,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:23,232 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:23,404 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:23,452 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:23,495 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:23,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:23,545 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:23,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2019-08-05 10:36:23,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 52 states [2019-08-05 10:36:23,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2019-08-05 10:36:23,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2019-08-05 10:36:23,546 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 52 states. [2019-08-05 10:36:23,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:23,610 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2019-08-05 10:36:23,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-08-05 10:36:23,611 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 51 [2019-08-05 10:36:23,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:23,611 INFO L225 Difference]: With dead ends: 53 [2019-08-05 10:36:23,612 INFO L226 Difference]: Without dead ends: 53 [2019-08-05 10:36:23,612 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2019-08-05 10:36:23,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-08-05 10:36:23,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-08-05 10:36:23,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-08-05 10:36:23,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2019-08-05 10:36:23,614 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 51 [2019-08-05 10:36:23,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:23,615 INFO L475 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2019-08-05 10:36:23,615 INFO L476 AbstractCegarLoop]: Interpolant automaton has 52 states. [2019-08-05 10:36:23,615 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2019-08-05 10:36:23,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-08-05 10:36:23,615 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:23,615 INFO L399 BasicCegarLoop]: trace histogram [50, 1, 1] [2019-08-05 10:36:23,616 INFO L418 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:23,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:23,616 INFO L82 PathProgramCache]: Analyzing trace with hash -190511694, now seen corresponding path program 50 times [2019-08-05 10:36:23,617 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:23,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 52 conjunts are in the unsatisfiable core [2019-08-05 10:36:23,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:23,704 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:23,859 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:36:23,859 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:23,952 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:23,964 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:23,974 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:23,984 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:23,996 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,009 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,021 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,035 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,049 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,064 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,080 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,115 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,133 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,153 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,175 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,219 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,240 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,263 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,285 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,336 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,365 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,393 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,420 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,451 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,485 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,552 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,581 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,617 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,649 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,693 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,731 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,770 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,807 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,882 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,919 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,960 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:24,998 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,043 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,083 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,124 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,168 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,213 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,255 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:25,353 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:25,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2019-08-05 10:36:25,353 INFO L454 AbstractCegarLoop]: Interpolant automaton has 53 states [2019-08-05 10:36:25,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2019-08-05 10:36:25,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2019-08-05 10:36:25,354 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 53 states. [2019-08-05 10:36:25,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:25,428 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2019-08-05 10:36:25,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2019-08-05 10:36:25,429 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 52 [2019-08-05 10:36:25,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:25,430 INFO L225 Difference]: With dead ends: 54 [2019-08-05 10:36:25,430 INFO L226 Difference]: Without dead ends: 54 [2019-08-05 10:36:25,430 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2019-08-05 10:36:25,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-08-05 10:36:25,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-08-05 10:36:25,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-08-05 10:36:25,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2019-08-05 10:36:25,432 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 52 [2019-08-05 10:36:25,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:25,432 INFO L475 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2019-08-05 10:36:25,432 INFO L476 AbstractCegarLoop]: Interpolant automaton has 53 states. [2019-08-05 10:36:25,432 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2019-08-05 10:36:25,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-08-05 10:36:25,433 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:25,433 INFO L399 BasicCegarLoop]: trace histogram [51, 1, 1] [2019-08-05 10:36:25,433 INFO L418 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:25,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:25,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1610895015, now seen corresponding path program 51 times [2019-08-05 10:36:25,434 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:25,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 53 conjunts are in the unsatisfiable core [2019-08-05 10:36:25,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:25,500 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,522 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,530 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,539 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,563 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,606 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,669 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,686 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,705 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,724 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,742 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,780 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,802 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,823 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,847 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,868 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,892 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,944 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:25,971 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,027 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,057 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,116 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,149 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,180 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,210 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,241 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,277 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,344 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,383 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,422 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,458 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,498 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,556 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,597 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,723 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,762 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,803 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,848 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,891 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,936 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:26,984 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:27,037 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:27,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2019-08-05 10:36:27,037 INFO L454 AbstractCegarLoop]: Interpolant automaton has 54 states [2019-08-05 10:36:27,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2019-08-05 10:36:27,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2019-08-05 10:36:27,038 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 54 states. [2019-08-05 10:36:27,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:27,133 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2019-08-05 10:36:27,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2019-08-05 10:36:27,133 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 53 [2019-08-05 10:36:27,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:27,134 INFO L225 Difference]: With dead ends: 55 [2019-08-05 10:36:27,134 INFO L226 Difference]: Without dead ends: 55 [2019-08-05 10:36:27,135 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2019-08-05 10:36:27,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-08-05 10:36:27,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-08-05 10:36:27,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-08-05 10:36:27,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2019-08-05 10:36:27,137 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 53 [2019-08-05 10:36:27,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:27,137 INFO L475 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2019-08-05 10:36:27,137 INFO L476 AbstractCegarLoop]: Interpolant automaton has 54 states. [2019-08-05 10:36:27,137 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2019-08-05 10:36:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-08-05 10:36:27,137 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:27,138 INFO L399 BasicCegarLoop]: trace histogram [52, 1, 1] [2019-08-05 10:36:27,138 INFO L418 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:27,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:27,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1601862290, now seen corresponding path program 52 times [2019-08-05 10:36:27,138 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:27,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 54 conjunts are in the unsatisfiable core [2019-08-05 10:36:27,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:27,199 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,221 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,229 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,239 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,248 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,258 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,269 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,282 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,297 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,312 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,326 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,342 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,357 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,375 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,391 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,430 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,451 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,531 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,553 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,578 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,602 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,655 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,682 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,707 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,736 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,763 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,794 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,826 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,858 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,920 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,952 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:27,986 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,021 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,067 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,102 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,272 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,341 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,565 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,658 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,720 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,765 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,812 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,856 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,902 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:28,961 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:28,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2019-08-05 10:36:28,961 INFO L454 AbstractCegarLoop]: Interpolant automaton has 55 states [2019-08-05 10:36:28,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2019-08-05 10:36:28,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2019-08-05 10:36:28,962 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 55 states. [2019-08-05 10:36:29,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:29,038 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2019-08-05 10:36:29,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-08-05 10:36:29,039 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 54 [2019-08-05 10:36:29,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:29,040 INFO L225 Difference]: With dead ends: 56 [2019-08-05 10:36:29,040 INFO L226 Difference]: Without dead ends: 56 [2019-08-05 10:36:29,041 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2019-08-05 10:36:29,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-08-05 10:36:29,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-08-05 10:36:29,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-08-05 10:36:29,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2019-08-05 10:36:29,043 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 54 [2019-08-05 10:36:29,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:29,044 INFO L475 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2019-08-05 10:36:29,044 INFO L476 AbstractCegarLoop]: Interpolant automaton has 55 states. [2019-08-05 10:36:29,044 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2019-08-05 10:36:29,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-08-05 10:36:29,044 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:29,044 INFO L399 BasicCegarLoop]: trace histogram [53, 1, 1] [2019-08-05 10:36:29,045 INFO L418 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:29,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:29,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1881876359, now seen corresponding path program 53 times [2019-08-05 10:36:29,045 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:29,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 55 conjunts are in the unsatisfiable core [2019-08-05 10:36:29,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:29,115 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,276 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:36:29,277 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,482 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:36:29,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,563 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,572 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,582 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,615 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,642 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,658 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,674 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,689 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,707 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,728 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,748 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,767 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,787 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,810 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,852 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,876 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,902 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,927 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,956 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:29,985 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,011 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,040 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,070 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,099 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,129 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,162 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,228 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,288 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,322 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,357 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,394 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,432 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,481 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,554 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,636 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,677 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,719 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,769 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,862 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,909 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:30,954 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,004 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,071 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:31,134 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:31,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2019-08-05 10:36:31,135 INFO L454 AbstractCegarLoop]: Interpolant automaton has 56 states [2019-08-05 10:36:31,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2019-08-05 10:36:31,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2019-08-05 10:36:31,136 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 56 states. [2019-08-05 10:36:31,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:31,198 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2019-08-05 10:36:31,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-08-05 10:36:31,198 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 55 [2019-08-05 10:36:31,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:31,199 INFO L225 Difference]: With dead ends: 57 [2019-08-05 10:36:31,199 INFO L226 Difference]: Without dead ends: 57 [2019-08-05 10:36:31,199 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2019-08-05 10:36:31,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-08-05 10:36:31,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-08-05 10:36:31,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-08-05 10:36:31,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2019-08-05 10:36:31,201 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 55 [2019-08-05 10:36:31,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:31,202 INFO L475 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2019-08-05 10:36:31,202 INFO L476 AbstractCegarLoop]: Interpolant automaton has 56 states. [2019-08-05 10:36:31,202 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2019-08-05 10:36:31,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-08-05 10:36:31,203 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:31,203 INFO L399 BasicCegarLoop]: trace histogram [54, 1, 1] [2019-08-05 10:36:31,203 INFO L418 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:31,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:31,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1791375218, now seen corresponding path program 54 times [2019-08-05 10:36:31,204 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:31,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 56 conjunts are in the unsatisfiable core [2019-08-05 10:36:31,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:31,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,241 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,248 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,266 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,275 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,289 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,300 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,312 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,326 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,339 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,355 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,370 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,402 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,419 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,438 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,458 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,486 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,506 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,527 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,593 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,616 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,647 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,673 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,702 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,730 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,757 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,788 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,816 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,848 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,876 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,907 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,940 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:31,973 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,012 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,045 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,083 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,120 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,157 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,275 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,316 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,356 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,399 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,441 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,482 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,611 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,659 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,734 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:32,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:32,886 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:32,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2019-08-05 10:36:32,886 INFO L454 AbstractCegarLoop]: Interpolant automaton has 57 states [2019-08-05 10:36:32,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2019-08-05 10:36:32,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2019-08-05 10:36:32,887 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand 57 states. [2019-08-05 10:36:32,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:32,972 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2019-08-05 10:36:32,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-08-05 10:36:32,973 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 56 [2019-08-05 10:36:32,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:32,974 INFO L225 Difference]: With dead ends: 58 [2019-08-05 10:36:32,974 INFO L226 Difference]: Without dead ends: 58 [2019-08-05 10:36:32,975 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2019-08-05 10:36:32,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-08-05 10:36:32,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2019-08-05 10:36:32,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-08-05 10:36:32,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2019-08-05 10:36:32,977 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 56 [2019-08-05 10:36:32,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:32,978 INFO L475 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2019-08-05 10:36:32,978 INFO L476 AbstractCegarLoop]: Interpolant automaton has 57 states. [2019-08-05 10:36:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2019-08-05 10:36:32,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-08-05 10:36:32,978 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:32,978 INFO L399 BasicCegarLoop]: trace histogram [55, 1, 1] [2019-08-05 10:36:32,978 INFO L418 AbstractCegarLoop]: === Iteration 56 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:32,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:32,979 INFO L82 PathProgramCache]: Analyzing trace with hash -301942887, now seen corresponding path program 55 times [2019-08-05 10:36:32,979 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:33,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 57 conjunts are in the unsatisfiable core [2019-08-05 10:36:33,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:33,064 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,190 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,199 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,208 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,509 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:36:33,510 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,792 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:36:33,792 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,878 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,907 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,937 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,952 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,968 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:33,986 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,005 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,046 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,067 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,129 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,177 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,200 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,227 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,254 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,281 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,308 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,353 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,383 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,413 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,445 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,475 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,507 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,544 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,616 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,652 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,690 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,734 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,815 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,873 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,958 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:34,999 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,043 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,132 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,178 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,222 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,268 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,317 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,385 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,432 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:35,486 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:35,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2019-08-05 10:36:35,487 INFO L454 AbstractCegarLoop]: Interpolant automaton has 58 states [2019-08-05 10:36:35,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2019-08-05 10:36:35,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2019-08-05 10:36:35,487 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 58 states. [2019-08-05 10:36:35,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:35,556 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2019-08-05 10:36:35,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2019-08-05 10:36:35,557 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 57 [2019-08-05 10:36:35,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:35,557 INFO L225 Difference]: With dead ends: 59 [2019-08-05 10:36:35,557 INFO L226 Difference]: Without dead ends: 59 [2019-08-05 10:36:35,558 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2019-08-05 10:36:35,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-08-05 10:36:35,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-08-05 10:36:35,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-08-05 10:36:35,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2019-08-05 10:36:35,560 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 57 [2019-08-05 10:36:35,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:35,560 INFO L475 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2019-08-05 10:36:35,560 INFO L476 AbstractCegarLoop]: Interpolant automaton has 58 states. [2019-08-05 10:36:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2019-08-05 10:36:35,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-08-05 10:36:35,560 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:35,560 INFO L399 BasicCegarLoop]: trace histogram [56, 1, 1] [2019-08-05 10:36:35,561 INFO L418 AbstractCegarLoop]: === Iteration 57 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:35,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:35,561 INFO L82 PathProgramCache]: Analyzing trace with hash -770294702, now seen corresponding path program 56 times [2019-08-05 10:36:35,561 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:35,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 58 conjunts are in the unsatisfiable core [2019-08-05 10:36:35,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:35,638 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,666 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,674 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,684 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,694 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,705 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,717 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,730 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,744 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,757 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,773 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,794 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,812 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,842 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,859 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,877 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,898 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,919 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,940 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,962 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:35,983 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,031 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,077 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,104 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,132 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,162 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,191 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,221 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,250 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,280 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,311 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,344 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,380 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,415 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,491 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,568 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,699 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,738 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,780 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,822 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,864 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,905 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,947 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:36,997 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,048 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,097 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,144 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,192 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,242 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,296 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,345 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:37,402 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:37,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2019-08-05 10:36:37,402 INFO L454 AbstractCegarLoop]: Interpolant automaton has 59 states [2019-08-05 10:36:37,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2019-08-05 10:36:37,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2019-08-05 10:36:37,403 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand 59 states. [2019-08-05 10:36:37,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:37,471 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2019-08-05 10:36:37,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2019-08-05 10:36:37,471 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 58 [2019-08-05 10:36:37,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:37,472 INFO L225 Difference]: With dead ends: 60 [2019-08-05 10:36:37,472 INFO L226 Difference]: Without dead ends: 60 [2019-08-05 10:36:37,473 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2019-08-05 10:36:37,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-08-05 10:36:37,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-08-05 10:36:37,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-08-05 10:36:37,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2019-08-05 10:36:37,476 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 58 [2019-08-05 10:36:37,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:37,476 INFO L475 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2019-08-05 10:36:37,476 INFO L476 AbstractCegarLoop]: Interpolant automaton has 59 states. [2019-08-05 10:36:37,476 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2019-08-05 10:36:37,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-08-05 10:36:37,477 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:37,477 INFO L399 BasicCegarLoop]: trace histogram [57, 1, 1] [2019-08-05 10:36:37,477 INFO L418 AbstractCegarLoop]: === Iteration 58 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:37,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:37,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1890668217, now seen corresponding path program 57 times [2019-08-05 10:36:37,478 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:37,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 59 conjunts are in the unsatisfiable core [2019-08-05 10:36:37,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:37,559 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,743 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:36:37,744 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,865 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,874 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,885 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,897 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,910 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,924 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,937 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,951 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,965 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:37,982 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,001 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,018 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,034 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,051 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,070 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,093 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,115 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,144 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,165 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,187 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,210 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,258 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,286 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,315 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,344 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,429 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,676 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,714 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,818 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,849 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,885 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,919 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,958 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:38,992 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,031 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,068 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,108 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,147 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,228 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,267 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,354 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,399 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,446 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,490 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,535 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,585 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,632 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,679 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,731 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,780 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,864 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:39,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:39,919 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:39,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2019-08-05 10:36:39,919 INFO L454 AbstractCegarLoop]: Interpolant automaton has 60 states [2019-08-05 10:36:39,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2019-08-05 10:36:39,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2019-08-05 10:36:39,920 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 60 states. [2019-08-05 10:36:40,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:40,008 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-08-05 10:36:40,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2019-08-05 10:36:40,009 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 59 [2019-08-05 10:36:40,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:40,009 INFO L225 Difference]: With dead ends: 61 [2019-08-05 10:36:40,009 INFO L226 Difference]: Without dead ends: 61 [2019-08-05 10:36:40,010 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2019-08-05 10:36:40,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-08-05 10:36:40,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-08-05 10:36:40,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-08-05 10:36:40,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2019-08-05 10:36:40,012 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 59 [2019-08-05 10:36:40,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:40,012 INFO L475 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2019-08-05 10:36:40,012 INFO L476 AbstractCegarLoop]: Interpolant automaton has 60 states. [2019-08-05 10:36:40,012 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2019-08-05 10:36:40,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-08-05 10:36:40,013 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:40,013 INFO L399 BasicCegarLoop]: trace histogram [58, 1, 1] [2019-08-05 10:36:40,013 INFO L418 AbstractCegarLoop]: === Iteration 59 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:40,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:40,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1518827214, now seen corresponding path program 58 times [2019-08-05 10:36:40,014 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:40,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 60 conjunts are in the unsatisfiable core [2019-08-05 10:36:40,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:40,085 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,135 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,143 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,152 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,161 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,172 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,184 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,197 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,211 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,224 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,239 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,255 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,270 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,289 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,307 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,327 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,347 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,366 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,391 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,412 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,437 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,463 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,507 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,546 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,571 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,596 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,622 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,650 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,679 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,709 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,739 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,768 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,798 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,832 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,865 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,900 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,933 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:40,970 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,006 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,043 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,103 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,142 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,220 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,262 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,349 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,396 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,442 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,488 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,600 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,646 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,695 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,743 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,797 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,854 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,905 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:41,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:41,961 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:41,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2019-08-05 10:36:41,961 INFO L454 AbstractCegarLoop]: Interpolant automaton has 61 states [2019-08-05 10:36:41,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2019-08-05 10:36:41,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2019-08-05 10:36:41,962 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand 61 states. [2019-08-05 10:36:42,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:42,044 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2019-08-05 10:36:42,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2019-08-05 10:36:42,045 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 60 [2019-08-05 10:36:42,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:42,046 INFO L225 Difference]: With dead ends: 62 [2019-08-05 10:36:42,046 INFO L226 Difference]: Without dead ends: 62 [2019-08-05 10:36:42,046 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2019-08-05 10:36:42,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-08-05 10:36:42,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-08-05 10:36:42,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-08-05 10:36:42,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2019-08-05 10:36:42,049 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 60 [2019-08-05 10:36:42,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:42,049 INFO L475 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2019-08-05 10:36:42,049 INFO L476 AbstractCegarLoop]: Interpolant automaton has 61 states. [2019-08-05 10:36:42,050 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2019-08-05 10:36:42,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-08-05 10:36:42,050 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:42,050 INFO L399 BasicCegarLoop]: trace histogram [59, 1, 1] [2019-08-05 10:36:42,050 INFO L418 AbstractCegarLoop]: === Iteration 60 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:42,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:42,051 INFO L82 PathProgramCache]: Analyzing trace with hash 160996825, now seen corresponding path program 59 times [2019-08-05 10:36:42,051 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:42,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 61 conjunts are in the unsatisfiable core [2019-08-05 10:36:42,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:42,098 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,109 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,118 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,128 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,138 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,151 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,163 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,176 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,218 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,251 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,269 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,287 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,324 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,344 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,390 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,412 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,441 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,492 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,516 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,556 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,586 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,615 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,644 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,674 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,704 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,736 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,767 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,796 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,861 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,947 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:42,981 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,016 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,053 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,092 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,133 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,173 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,214 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,257 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,342 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,428 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,475 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,707 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,776 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,871 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:43,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,037 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,088 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,143 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:44,197 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:44,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2019-08-05 10:36:44,198 INFO L454 AbstractCegarLoop]: Interpolant automaton has 62 states [2019-08-05 10:36:44,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2019-08-05 10:36:44,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2019-08-05 10:36:44,198 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 62 states. [2019-08-05 10:36:44,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:44,280 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2019-08-05 10:36:44,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2019-08-05 10:36:44,281 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 61 [2019-08-05 10:36:44,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:44,282 INFO L225 Difference]: With dead ends: 63 [2019-08-05 10:36:44,282 INFO L226 Difference]: Without dead ends: 63 [2019-08-05 10:36:44,282 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2019-08-05 10:36:44,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-08-05 10:36:44,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-08-05 10:36:44,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-08-05 10:36:44,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2019-08-05 10:36:44,284 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 61 [2019-08-05 10:36:44,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:44,284 INFO L475 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2019-08-05 10:36:44,285 INFO L476 AbstractCegarLoop]: Interpolant automaton has 62 states. [2019-08-05 10:36:44,285 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2019-08-05 10:36:44,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-08-05 10:36:44,285 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:44,285 INFO L399 BasicCegarLoop]: trace histogram [60, 1, 1] [2019-08-05 10:36:44,285 INFO L418 AbstractCegarLoop]: === Iteration 61 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:44,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:44,285 INFO L82 PathProgramCache]: Analyzing trace with hash 695934482, now seen corresponding path program 60 times [2019-08-05 10:36:44,286 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:44,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 62 conjunts are in the unsatisfiable core [2019-08-05 10:36:44,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:44,364 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,415 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,423 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,449 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,458 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,469 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,482 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,493 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,506 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,521 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,535 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,551 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,584 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,601 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,641 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,661 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,682 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,702 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,727 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,750 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,774 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,800 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,824 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,856 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,891 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,920 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,948 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:44,981 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,013 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,043 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,075 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,106 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,141 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,176 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,211 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,285 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,324 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,361 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,402 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,439 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,477 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,517 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,557 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,600 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,641 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,689 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,733 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,778 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,826 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,873 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:45,971 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,021 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,076 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,129 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,183 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,236 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:46,296 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:46,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2019-08-05 10:36:46,296 INFO L454 AbstractCegarLoop]: Interpolant automaton has 63 states [2019-08-05 10:36:46,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2019-08-05 10:36:46,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2019-08-05 10:36:46,297 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 63 states. [2019-08-05 10:36:46,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:46,375 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2019-08-05 10:36:46,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2019-08-05 10:36:46,376 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 62 [2019-08-05 10:36:46,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:46,377 INFO L225 Difference]: With dead ends: 64 [2019-08-05 10:36:46,377 INFO L226 Difference]: Without dead ends: 64 [2019-08-05 10:36:46,377 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2019-08-05 10:36:46,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-08-05 10:36:46,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2019-08-05 10:36:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-08-05 10:36:46,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2019-08-05 10:36:46,379 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 62 [2019-08-05 10:36:46,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:46,379 INFO L475 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2019-08-05 10:36:46,379 INFO L476 AbstractCegarLoop]: Interpolant automaton has 63 states. [2019-08-05 10:36:46,380 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2019-08-05 10:36:46,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-08-05 10:36:46,380 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:46,380 INFO L399 BasicCegarLoop]: trace histogram [61, 1, 1] [2019-08-05 10:36:46,380 INFO L418 AbstractCegarLoop]: === Iteration 62 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:46,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:46,380 INFO L82 PathProgramCache]: Analyzing trace with hash 99132665, now seen corresponding path program 61 times [2019-08-05 10:36:46,381 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:46,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 63 conjunts are in the unsatisfiable core [2019-08-05 10:36:46,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:46,449 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,465 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,473 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,492 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,574 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,586 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,598 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,611 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,624 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,639 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,671 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,705 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,724 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,741 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,760 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:46,988 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,009 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,034 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,057 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,081 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,107 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,135 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,172 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,199 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,227 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,261 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,289 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,322 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,353 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,456 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,492 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,529 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,569 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,605 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,646 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,687 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,726 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,785 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,826 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,872 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:47,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,003 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,045 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,091 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,135 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,231 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,279 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,327 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,378 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,437 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,488 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:48,779 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:48,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2019-08-05 10:36:48,779 INFO L454 AbstractCegarLoop]: Interpolant automaton has 64 states [2019-08-05 10:36:48,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2019-08-05 10:36:48,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2019-08-05 10:36:48,780 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 64 states. [2019-08-05 10:36:48,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:48,889 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2019-08-05 10:36:48,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2019-08-05 10:36:48,889 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 63 [2019-08-05 10:36:48,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:48,889 INFO L225 Difference]: With dead ends: 65 [2019-08-05 10:36:48,889 INFO L226 Difference]: Without dead ends: 65 [2019-08-05 10:36:48,890 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2019-08-05 10:36:48,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-08-05 10:36:48,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-08-05 10:36:48,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-08-05 10:36:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2019-08-05 10:36:48,891 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 63 [2019-08-05 10:36:48,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:48,892 INFO L475 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2019-08-05 10:36:48,892 INFO L476 AbstractCegarLoop]: Interpolant automaton has 64 states. [2019-08-05 10:36:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2019-08-05 10:36:48,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-08-05 10:36:48,893 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:48,893 INFO L399 BasicCegarLoop]: trace histogram [62, 1, 1] [2019-08-05 10:36:48,893 INFO L418 AbstractCegarLoop]: === Iteration 63 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:48,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:48,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1221854478, now seen corresponding path program 62 times [2019-08-05 10:36:48,894 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:48,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 64 conjunts are in the unsatisfiable core [2019-08-05 10:36:48,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:48,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:48,985 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,004 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,013 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,022 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,033 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,045 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,056 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,073 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,088 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,126 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,146 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,165 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,183 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,202 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,222 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,242 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,263 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,286 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,308 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,332 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,356 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,382 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,414 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,456 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,484 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,513 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,569 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,598 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,631 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,662 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,694 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,731 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,765 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,800 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,876 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,920 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:49,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,000 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,041 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,079 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,118 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,163 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,290 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,335 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,429 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,479 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,528 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,576 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,626 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,675 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,727 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,903 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:50,960 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:51,021 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:51,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2019-08-05 10:36:51,022 INFO L454 AbstractCegarLoop]: Interpolant automaton has 65 states [2019-08-05 10:36:51,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2019-08-05 10:36:51,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2019-08-05 10:36:51,023 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 65 states. [2019-08-05 10:36:51,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:51,116 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2019-08-05 10:36:51,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2019-08-05 10:36:51,117 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 64 [2019-08-05 10:36:51,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:51,117 INFO L225 Difference]: With dead ends: 66 [2019-08-05 10:36:51,118 INFO L226 Difference]: Without dead ends: 66 [2019-08-05 10:36:51,118 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2019-08-05 10:36:51,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-08-05 10:36:51,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-08-05 10:36:51,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-08-05 10:36:51,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2019-08-05 10:36:51,120 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 64 [2019-08-05 10:36:51,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:51,121 INFO L475 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2019-08-05 10:36:51,121 INFO L476 AbstractCegarLoop]: Interpolant automaton has 65 states. [2019-08-05 10:36:51,121 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2019-08-05 10:36:51,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-08-05 10:36:51,121 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:51,122 INFO L399 BasicCegarLoop]: trace histogram [63, 1, 1] [2019-08-05 10:36:51,122 INFO L418 AbstractCegarLoop]: === Iteration 64 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:51,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:51,122 INFO L82 PathProgramCache]: Analyzing trace with hash 777217049, now seen corresponding path program 63 times [2019-08-05 10:36:51,123 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:51,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 65 conjunts are in the unsatisfiable core [2019-08-05 10:36:51,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:51,177 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,205 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,224 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,258 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,271 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,286 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,300 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,316 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,331 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,407 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,426 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,448 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,474 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,497 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,519 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,557 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,583 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,636 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,664 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,722 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,751 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,810 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,840 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,872 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,906 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,943 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:51,977 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,232 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,268 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,343 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,381 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,422 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,463 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,508 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,554 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,598 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,640 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,686 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,734 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,882 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,932 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:52,982 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,036 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,086 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,142 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,214 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,270 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,330 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,387 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:53,445 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:53,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2019-08-05 10:36:53,445 INFO L454 AbstractCegarLoop]: Interpolant automaton has 66 states [2019-08-05 10:36:53,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2019-08-05 10:36:53,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2019-08-05 10:36:53,447 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 66 states. [2019-08-05 10:36:53,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:53,534 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2019-08-05 10:36:53,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2019-08-05 10:36:53,535 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 65 [2019-08-05 10:36:53,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:53,536 INFO L225 Difference]: With dead ends: 67 [2019-08-05 10:36:53,536 INFO L226 Difference]: Without dead ends: 67 [2019-08-05 10:36:53,536 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2019-08-05 10:36:53,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-08-05 10:36:53,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2019-08-05 10:36:53,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-08-05 10:36:53,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2019-08-05 10:36:53,538 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 65 [2019-08-05 10:36:53,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:53,539 INFO L475 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2019-08-05 10:36:53,539 INFO L476 AbstractCegarLoop]: Interpolant automaton has 66 states. [2019-08-05 10:36:53,539 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2019-08-05 10:36:53,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-08-05 10:36:53,539 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:53,540 INFO L399 BasicCegarLoop]: trace histogram [64, 1, 1] [2019-08-05 10:36:53,540 INFO L418 AbstractCegarLoop]: === Iteration 65 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:53,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:53,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1676075054, now seen corresponding path program 64 times [2019-08-05 10:36:53,541 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:53,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 66 conjunts are in the unsatisfiable core [2019-08-05 10:36:53,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:53,588 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,603 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,612 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,622 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,634 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,647 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,662 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,675 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,703 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,721 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,779 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,852 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,932 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:53,995 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,048 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,122 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,202 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,248 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,277 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,302 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,328 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,356 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,385 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,417 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,446 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,478 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,511 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,574 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,608 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,643 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,679 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,715 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,752 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,791 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,870 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,910 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,954 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:54,993 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,040 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,081 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,124 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,168 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,212 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,259 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,305 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,351 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,422 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,572 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,623 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,675 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,726 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,780 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,834 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:55,954 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:56,016 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:56,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2019-08-05 10:36:56,017 INFO L454 AbstractCegarLoop]: Interpolant automaton has 67 states [2019-08-05 10:36:56,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2019-08-05 10:36:56,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2019-08-05 10:36:56,018 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand 67 states. [2019-08-05 10:36:56,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:56,131 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2019-08-05 10:36:56,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2019-08-05 10:36:56,132 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 66 [2019-08-05 10:36:56,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:56,132 INFO L225 Difference]: With dead ends: 68 [2019-08-05 10:36:56,132 INFO L226 Difference]: Without dead ends: 68 [2019-08-05 10:36:56,133 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2019-08-05 10:36:56,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-08-05 10:36:56,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-08-05 10:36:56,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-08-05 10:36:56,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2019-08-05 10:36:56,135 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 66 [2019-08-05 10:36:56,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:56,135 INFO L475 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2019-08-05 10:36:56,135 INFO L476 AbstractCegarLoop]: Interpolant automaton has 67 states. [2019-08-05 10:36:56,136 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2019-08-05 10:36:56,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-08-05 10:36:56,136 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:56,136 INFO L399 BasicCegarLoop]: trace histogram [65, 1, 1] [2019-08-05 10:36:56,136 INFO L418 AbstractCegarLoop]: === Iteration 66 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:56,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:56,136 INFO L82 PathProgramCache]: Analyzing trace with hash -418718919, now seen corresponding path program 65 times [2019-08-05 10:36:56,137 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:56,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 67 conjunts are in the unsatisfiable core [2019-08-05 10:36:56,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:56,199 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,218 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,226 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,258 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,271 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,284 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,297 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,327 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,353 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,369 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,385 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,403 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,423 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,441 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,464 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,484 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,506 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,529 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,552 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,630 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,680 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,706 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,737 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,769 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,797 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,827 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,862 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,894 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,927 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,962 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:56,994 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,031 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,067 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,140 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,256 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,297 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,337 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,376 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,419 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,461 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,505 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,596 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,643 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,741 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,789 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,835 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,885 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,938 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:57,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,038 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,093 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,146 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,201 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,257 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,312 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:36:58,379 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:36:58,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2019-08-05 10:36:58,380 INFO L454 AbstractCegarLoop]: Interpolant automaton has 68 states [2019-08-05 10:36:58,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2019-08-05 10:36:58,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2019-08-05 10:36:58,381 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 68 states. [2019-08-05 10:36:58,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:36:58,471 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2019-08-05 10:36:58,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2019-08-05 10:36:58,471 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 67 [2019-08-05 10:36:58,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:36:58,472 INFO L225 Difference]: With dead ends: 69 [2019-08-05 10:36:58,472 INFO L226 Difference]: Without dead ends: 69 [2019-08-05 10:36:58,473 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2019-08-05 10:36:58,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-08-05 10:36:58,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2019-08-05 10:36:58,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-08-05 10:36:58,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2019-08-05 10:36:58,474 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 67 [2019-08-05 10:36:58,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:36:58,474 INFO L475 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2019-08-05 10:36:58,474 INFO L476 AbstractCegarLoop]: Interpolant automaton has 68 states. [2019-08-05 10:36:58,475 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2019-08-05 10:36:58,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-08-05 10:36:58,475 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:36:58,475 INFO L399 BasicCegarLoop]: trace histogram [66, 1, 1] [2019-08-05 10:36:58,475 INFO L418 AbstractCegarLoop]: === Iteration 67 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:36:58,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:36:58,476 INFO L82 PathProgramCache]: Analyzing trace with hash -95384398, now seen corresponding path program 66 times [2019-08-05 10:36:58,477 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:36:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:36:58,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 68 conjunts are in the unsatisfiable core [2019-08-05 10:36:58,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:36:58,575 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,611 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,619 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,639 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,650 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,663 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,674 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,687 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,701 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,717 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,732 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,749 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,765 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,785 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,802 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,821 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,854 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:58,957 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,066 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,136 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,160 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,184 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,211 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,237 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,263 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,292 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,322 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,349 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,379 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,462 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,491 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,559 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,593 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,630 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,669 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,703 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,744 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,783 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,822 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,868 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,908 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,949 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:36:59,992 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,035 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,078 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,121 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,166 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,212 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,264 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,360 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,408 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,521 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,569 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,623 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,676 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,732 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,787 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,841 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,897 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:00,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,043 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:01,108 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:01,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2019-08-05 10:37:01,108 INFO L454 AbstractCegarLoop]: Interpolant automaton has 69 states [2019-08-05 10:37:01,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2019-08-05 10:37:01,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2019-08-05 10:37:01,109 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 69 states. [2019-08-05 10:37:01,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:01,204 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2019-08-05 10:37:01,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2019-08-05 10:37:01,204 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 68 [2019-08-05 10:37:01,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:01,205 INFO L225 Difference]: With dead ends: 70 [2019-08-05 10:37:01,205 INFO L226 Difference]: Without dead ends: 70 [2019-08-05 10:37:01,206 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2019-08-05 10:37:01,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-08-05 10:37:01,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-08-05 10:37:01,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-08-05 10:37:01,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2019-08-05 10:37:01,208 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 68 [2019-08-05 10:37:01,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:01,208 INFO L475 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2019-08-05 10:37:01,208 INFO L476 AbstractCegarLoop]: Interpolant automaton has 69 states. [2019-08-05 10:37:01,208 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2019-08-05 10:37:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-08-05 10:37:01,209 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:01,209 INFO L399 BasicCegarLoop]: trace histogram [67, 1, 1] [2019-08-05 10:37:01,210 INFO L418 AbstractCegarLoop]: === Iteration 68 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:01,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:01,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1338051161, now seen corresponding path program 67 times [2019-08-05 10:37:01,210 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:01,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 69 conjunts are in the unsatisfiable core [2019-08-05 10:37:01,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:01,277 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,325 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,333 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,344 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,353 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,365 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,379 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,392 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,405 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,419 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,437 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,473 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,490 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,507 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,525 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,546 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,565 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,588 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,612 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,636 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,662 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,686 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,710 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,739 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,764 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,792 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,821 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,852 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,883 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,915 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,949 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:01,986 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,018 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,052 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,123 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,158 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,194 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,231 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,269 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,308 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,349 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,392 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,435 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,478 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,519 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,563 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,608 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,702 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,748 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,797 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,895 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,946 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:02,997 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:03,055 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:03,106 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:03,158 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:03,211 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:03,276 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:03,330 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:03,387 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:03,445 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:03,503 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:03,561 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:03,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:03,628 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:03,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2019-08-05 10:37:03,628 INFO L454 AbstractCegarLoop]: Interpolant automaton has 70 states [2019-08-05 10:37:03,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2019-08-05 10:37:03,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2019-08-05 10:37:03,629 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 70 states. [2019-08-05 10:37:03,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:03,710 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2019-08-05 10:37:03,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2019-08-05 10:37:03,711 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 69 [2019-08-05 10:37:03,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:03,712 INFO L225 Difference]: With dead ends: 71 [2019-08-05 10:37:03,712 INFO L226 Difference]: Without dead ends: 71 [2019-08-05 10:37:03,712 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2019-08-05 10:37:03,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-08-05 10:37:03,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-08-05 10:37:03,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-08-05 10:37:03,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2019-08-05 10:37:03,715 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 69 [2019-08-05 10:37:03,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:03,716 INFO L475 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2019-08-05 10:37:03,716 INFO L476 AbstractCegarLoop]: Interpolant automaton has 70 states. [2019-08-05 10:37:03,716 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2019-08-05 10:37:03,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-08-05 10:37:03,716 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:03,716 INFO L399 BasicCegarLoop]: trace histogram [68, 1, 1] [2019-08-05 10:37:03,716 INFO L418 AbstractCegarLoop]: === Iteration 69 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:03,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:03,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1470086766, now seen corresponding path program 68 times [2019-08-05 10:37:03,717 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:03,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 70 conjunts are in the unsatisfiable core [2019-08-05 10:37:03,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:03,780 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:03,948 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:37:03,949 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,169 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:37:04,170 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,403 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:37:04,404 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,664 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:37:04,665 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,793 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,805 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,820 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,832 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,848 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,863 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,878 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,894 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,911 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,930 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:04,973 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,005 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,050 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,072 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,120 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,145 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,168 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,192 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,219 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,274 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,303 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,333 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,396 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,458 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,489 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,527 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,566 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,599 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,636 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,671 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,712 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,750 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,789 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,872 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:05,958 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,004 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,051 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,121 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,163 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,262 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,311 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,361 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,409 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,462 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,519 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,583 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,635 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,687 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,744 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,798 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,852 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,909 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:06,967 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,082 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,142 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:07,207 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:07,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2019-08-05 10:37:07,208 INFO L454 AbstractCegarLoop]: Interpolant automaton has 71 states [2019-08-05 10:37:07,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2019-08-05 10:37:07,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2019-08-05 10:37:07,208 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand 71 states. [2019-08-05 10:37:07,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:07,293 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2019-08-05 10:37:07,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2019-08-05 10:37:07,293 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 70 [2019-08-05 10:37:07,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:07,294 INFO L225 Difference]: With dead ends: 72 [2019-08-05 10:37:07,294 INFO L226 Difference]: Without dead ends: 72 [2019-08-05 10:37:07,295 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2019-08-05 10:37:07,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-08-05 10:37:07,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-08-05 10:37:07,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-08-05 10:37:07,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2019-08-05 10:37:07,297 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 70 [2019-08-05 10:37:07,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:07,297 INFO L475 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2019-08-05 10:37:07,297 INFO L476 AbstractCegarLoop]: Interpolant automaton has 71 states. [2019-08-05 10:37:07,297 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2019-08-05 10:37:07,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-08-05 10:37:07,298 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:07,298 INFO L399 BasicCegarLoop]: trace histogram [69, 1, 1] [2019-08-05 10:37:07,298 INFO L418 AbstractCegarLoop]: === Iteration 70 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:07,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:07,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1671950713, now seen corresponding path program 69 times [2019-08-05 10:37:07,299 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:07,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 71 conjunts are in the unsatisfiable core [2019-08-05 10:37:07,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:07,333 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,340 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,347 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,357 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,366 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,377 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,390 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,401 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,414 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,428 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,443 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,460 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,475 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,493 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,510 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,528 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,548 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,589 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,612 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,635 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,658 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,710 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,737 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,763 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,792 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,821 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,852 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,951 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:07,983 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,018 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,052 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,088 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,125 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,161 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,198 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,271 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,341 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,383 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,426 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,510 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,555 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,599 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,644 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,687 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,733 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,782 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,848 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,895 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:08,947 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,004 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,055 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,208 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,270 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,419 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,491 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,544 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,601 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,658 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,718 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,832 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,891 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:09,954 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:10,020 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:10,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2019-08-05 10:37:10,020 INFO L454 AbstractCegarLoop]: Interpolant automaton has 72 states [2019-08-05 10:37:10,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2019-08-05 10:37:10,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2019-08-05 10:37:10,021 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 72 states. [2019-08-05 10:37:10,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:10,116 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2019-08-05 10:37:10,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2019-08-05 10:37:10,116 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 71 [2019-08-05 10:37:10,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:10,117 INFO L225 Difference]: With dead ends: 73 [2019-08-05 10:37:10,117 INFO L226 Difference]: Without dead ends: 73 [2019-08-05 10:37:10,118 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2019-08-05 10:37:10,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-08-05 10:37:10,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-08-05 10:37:10,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-08-05 10:37:10,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2019-08-05 10:37:10,120 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 71 [2019-08-05 10:37:10,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:10,120 INFO L475 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2019-08-05 10:37:10,120 INFO L476 AbstractCegarLoop]: Interpolant automaton has 72 states. [2019-08-05 10:37:10,120 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2019-08-05 10:37:10,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-08-05 10:37:10,121 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:10,121 INFO L399 BasicCegarLoop]: trace histogram [70, 1, 1] [2019-08-05 10:37:10,121 INFO L418 AbstractCegarLoop]: === Iteration 71 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:10,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:10,121 INFO L82 PathProgramCache]: Analyzing trace with hash 290864754, now seen corresponding path program 70 times [2019-08-05 10:37:10,122 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:10,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 72 conjunts are in the unsatisfiable core [2019-08-05 10:37:10,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:10,166 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,178 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,185 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,195 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,205 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,216 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,228 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,239 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,252 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,266 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,281 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,297 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,330 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,347 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,365 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,405 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,427 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,448 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,493 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,517 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,541 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,565 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,591 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,618 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,647 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,714 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,747 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,779 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,810 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,840 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,873 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,906 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:10,976 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,011 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,046 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,085 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,122 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,163 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,201 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,241 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,452 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,500 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,705 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,776 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,825 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,873 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,926 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:11,976 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,030 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,083 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,136 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,308 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,364 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,424 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,487 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,545 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,606 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,669 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:12,759 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:12,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2019-08-05 10:37:12,760 INFO L454 AbstractCegarLoop]: Interpolant automaton has 73 states [2019-08-05 10:37:12,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2019-08-05 10:37:12,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2019-08-05 10:37:12,761 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand 73 states. [2019-08-05 10:37:12,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:12,893 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2019-08-05 10:37:12,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2019-08-05 10:37:12,893 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 72 [2019-08-05 10:37:12,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:12,894 INFO L225 Difference]: With dead ends: 74 [2019-08-05 10:37:12,894 INFO L226 Difference]: Without dead ends: 74 [2019-08-05 10:37:12,895 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2019-08-05 10:37:12,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-08-05 10:37:12,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-08-05 10:37:12,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-08-05 10:37:12,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2019-08-05 10:37:12,897 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 72 [2019-08-05 10:37:12,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:12,899 INFO L475 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2019-08-05 10:37:12,899 INFO L476 AbstractCegarLoop]: Interpolant automaton has 73 states. [2019-08-05 10:37:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2019-08-05 10:37:12,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-08-05 10:37:12,900 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:12,900 INFO L399 BasicCegarLoop]: trace histogram [71, 1, 1] [2019-08-05 10:37:12,900 INFO L418 AbstractCegarLoop]: === Iteration 72 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:12,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:12,901 INFO L82 PathProgramCache]: Analyzing trace with hash 426872985, now seen corresponding path program 71 times [2019-08-05 10:37:12,901 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:12,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 73 conjunts are in the unsatisfiable core [2019-08-05 10:37:12,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:12,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,969 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,976 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,986 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:12,996 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,020 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,032 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,045 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,060 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,077 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,091 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,107 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,124 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,140 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,159 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,199 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,227 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,270 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,317 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,342 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,366 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,393 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,451 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,479 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,511 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,572 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,604 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,639 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,675 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,712 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,749 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,788 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,873 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,912 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,951 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:13,991 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,031 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,073 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,114 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,155 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,198 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,509 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,642 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,737 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,789 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:14,937 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,014 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,069 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,122 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,175 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,229 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,284 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,343 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,401 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,464 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,528 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,585 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,663 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,725 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,785 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:15,854 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:15,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2019-08-05 10:37:15,854 INFO L454 AbstractCegarLoop]: Interpolant automaton has 74 states [2019-08-05 10:37:15,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2019-08-05 10:37:15,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2019-08-05 10:37:15,855 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand 74 states. [2019-08-05 10:37:15,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:15,954 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2019-08-05 10:37:15,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2019-08-05 10:37:15,955 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 73 [2019-08-05 10:37:15,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:15,955 INFO L225 Difference]: With dead ends: 75 [2019-08-05 10:37:15,955 INFO L226 Difference]: Without dead ends: 75 [2019-08-05 10:37:15,956 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2019-08-05 10:37:15,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-08-05 10:37:15,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2019-08-05 10:37:15,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-08-05 10:37:15,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 75 transitions. [2019-08-05 10:37:15,958 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 75 transitions. Word has length 73 [2019-08-05 10:37:15,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:15,958 INFO L475 AbstractCegarLoop]: Abstraction has 75 states and 75 transitions. [2019-08-05 10:37:15,958 INFO L476 AbstractCegarLoop]: Interpolant automaton has 74 states. [2019-08-05 10:37:15,958 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2019-08-05 10:37:15,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-08-05 10:37:15,959 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:15,959 INFO L399 BasicCegarLoop]: trace histogram [72, 1, 1] [2019-08-05 10:37:15,959 INFO L418 AbstractCegarLoop]: === Iteration 73 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:15,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:15,960 INFO L82 PathProgramCache]: Analyzing trace with hash 348160850, now seen corresponding path program 72 times [2019-08-05 10:37:15,960 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:15,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 74 conjunts are in the unsatisfiable core [2019-08-05 10:37:15,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:16,015 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,038 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,046 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,055 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,094 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,117 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,129 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,141 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,201 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,235 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,259 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,275 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,295 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,315 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,336 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,358 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,382 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,405 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,440 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,465 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,489 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,544 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,570 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,599 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,629 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,659 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,723 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,809 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,846 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,919 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,958 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:16,995 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,035 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,074 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,114 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,339 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,383 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,425 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,471 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,517 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,562 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,613 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,667 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,718 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,771 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,822 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,873 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,927 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:17,999 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,055 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,109 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,165 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,223 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,287 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,342 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,403 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,527 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,591 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:18,726 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:18,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2019-08-05 10:37:18,727 INFO L454 AbstractCegarLoop]: Interpolant automaton has 75 states [2019-08-05 10:37:18,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2019-08-05 10:37:18,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2019-08-05 10:37:18,727 INFO L87 Difference]: Start difference. First operand 75 states and 75 transitions. Second operand 75 states. [2019-08-05 10:37:18,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:18,815 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2019-08-05 10:37:18,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2019-08-05 10:37:18,816 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 74 [2019-08-05 10:37:18,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:18,816 INFO L225 Difference]: With dead ends: 76 [2019-08-05 10:37:18,817 INFO L226 Difference]: Without dead ends: 76 [2019-08-05 10:37:18,817 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2019-08-05 10:37:18,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-08-05 10:37:18,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-08-05 10:37:18,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-08-05 10:37:18,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2019-08-05 10:37:18,820 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 74 [2019-08-05 10:37:18,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:18,820 INFO L475 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2019-08-05 10:37:18,820 INFO L476 AbstractCegarLoop]: Interpolant automaton has 75 states. [2019-08-05 10:37:18,820 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2019-08-05 10:37:18,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-08-05 10:37:18,821 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:18,821 INFO L399 BasicCegarLoop]: trace histogram [73, 1, 1] [2019-08-05 10:37:18,821 INFO L418 AbstractCegarLoop]: === Iteration 74 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:18,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:18,821 INFO L82 PathProgramCache]: Analyzing trace with hash -2091915335, now seen corresponding path program 73 times [2019-08-05 10:37:18,822 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:18,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 75 conjunts are in the unsatisfiable core [2019-08-05 10:37:18,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:18,865 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,901 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,911 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,920 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,931 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,943 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,956 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,970 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:18,984 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,001 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,016 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,032 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,052 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,071 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,089 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,111 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,132 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,177 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,199 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,271 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,296 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,342 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,394 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,509 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,644 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,738 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,811 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,840 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,923 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,954 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:19,988 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,023 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,058 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,095 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,132 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,172 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,210 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,292 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,336 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,378 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,423 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,468 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,552 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,595 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,701 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,748 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,794 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,847 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,896 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,948 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:20,998 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,140 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,192 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,248 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,305 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,364 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,463 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,529 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,650 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,709 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,773 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,902 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:21,968 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:22,037 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:22,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74] total 74 [2019-08-05 10:37:22,038 INFO L454 AbstractCegarLoop]: Interpolant automaton has 76 states [2019-08-05 10:37:22,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2019-08-05 10:37:22,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2019-08-05 10:37:22,039 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 76 states. [2019-08-05 10:37:22,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:22,137 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2019-08-05 10:37:22,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2019-08-05 10:37:22,137 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 75 [2019-08-05 10:37:22,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:22,138 INFO L225 Difference]: With dead ends: 77 [2019-08-05 10:37:22,138 INFO L226 Difference]: Without dead ends: 77 [2019-08-05 10:37:22,139 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2019-08-05 10:37:22,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-08-05 10:37:22,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-08-05 10:37:22,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-08-05 10:37:22,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2019-08-05 10:37:22,141 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 75 [2019-08-05 10:37:22,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:22,142 INFO L475 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2019-08-05 10:37:22,142 INFO L476 AbstractCegarLoop]: Interpolant automaton has 76 states. [2019-08-05 10:37:22,142 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2019-08-05 10:37:22,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-08-05 10:37:22,142 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:22,142 INFO L399 BasicCegarLoop]: trace histogram [74, 1, 1] [2019-08-05 10:37:22,142 INFO L418 AbstractCegarLoop]: === Iteration 75 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:22,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:22,143 INFO L82 PathProgramCache]: Analyzing trace with hash -424865742, now seen corresponding path program 74 times [2019-08-05 10:37:22,143 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:22,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 76 conjunts are in the unsatisfiable core [2019-08-05 10:37:22,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:22,177 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,214 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,223 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,258 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,269 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,284 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,315 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,331 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,351 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,369 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,408 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,427 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,450 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,470 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,499 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,522 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,548 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,575 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,599 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,655 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,685 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,715 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,744 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,777 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,808 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,867 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,909 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:22,977 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,012 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,050 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,098 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,136 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,175 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,255 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,345 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,435 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,480 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,522 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,566 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,613 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:23,958 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,059 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,110 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,161 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,211 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,260 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,368 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,426 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,544 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,723 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,806 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,914 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:24,970 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:25,027 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:25,086 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:25,144 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:25,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:25,266 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:25,332 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:25,394 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:25,468 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:25,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:25,540 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:25,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2019-08-05 10:37:25,541 INFO L454 AbstractCegarLoop]: Interpolant automaton has 77 states [2019-08-05 10:37:25,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2019-08-05 10:37:25,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2019-08-05 10:37:25,542 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand 77 states. [2019-08-05 10:37:25,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:25,640 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2019-08-05 10:37:25,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2019-08-05 10:37:25,641 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 76 [2019-08-05 10:37:25,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:25,641 INFO L225 Difference]: With dead ends: 78 [2019-08-05 10:37:25,642 INFO L226 Difference]: Without dead ends: 78 [2019-08-05 10:37:25,642 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2019-08-05 10:37:25,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-08-05 10:37:25,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2019-08-05 10:37:25,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-08-05 10:37:25,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2019-08-05 10:37:25,645 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 76 [2019-08-05 10:37:25,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:25,645 INFO L475 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2019-08-05 10:37:25,645 INFO L476 AbstractCegarLoop]: Interpolant automaton has 77 states. [2019-08-05 10:37:25,646 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2019-08-05 10:37:25,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-08-05 10:37:25,646 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:25,646 INFO L399 BasicCegarLoop]: trace histogram [75, 1, 1] [2019-08-05 10:37:25,647 INFO L418 AbstractCegarLoop]: === Iteration 76 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:25,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:25,647 INFO L82 PathProgramCache]: Analyzing trace with hash -285935911, now seen corresponding path program 75 times [2019-08-05 10:37:25,648 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:25,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 77 conjunts are in the unsatisfiable core [2019-08-05 10:37:25,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:25,739 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:25,910 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:37:25,911 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:25,974 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:25,983 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:25,992 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,003 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,017 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,030 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,043 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,057 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,081 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,112 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,129 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,151 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,169 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,208 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,230 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,250 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,278 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,301 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,325 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,351 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,376 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,405 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,433 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,462 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,493 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,554 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,585 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,617 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,651 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,682 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,717 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,793 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,832 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,931 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:26,970 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,024 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,067 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,109 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,150 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,191 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,236 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,281 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,327 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,376 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,422 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,467 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,564 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,676 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,726 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,779 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,937 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:27,996 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,049 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,106 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,164 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,285 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,346 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,408 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,469 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,597 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,663 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,728 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,795 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:28,865 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:28,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2019-08-05 10:37:28,865 INFO L454 AbstractCegarLoop]: Interpolant automaton has 78 states [2019-08-05 10:37:28,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2019-08-05 10:37:28,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2019-08-05 10:37:28,866 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 78 states. [2019-08-05 10:37:28,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:28,970 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2019-08-05 10:37:28,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2019-08-05 10:37:28,970 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 77 [2019-08-05 10:37:28,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:28,971 INFO L225 Difference]: With dead ends: 79 [2019-08-05 10:37:28,971 INFO L226 Difference]: Without dead ends: 79 [2019-08-05 10:37:28,971 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2019-08-05 10:37:28,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-08-05 10:37:28,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-08-05 10:37:28,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-08-05 10:37:28,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2019-08-05 10:37:28,973 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 77 [2019-08-05 10:37:28,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:28,973 INFO L475 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2019-08-05 10:37:28,974 INFO L476 AbstractCegarLoop]: Interpolant automaton has 78 states. [2019-08-05 10:37:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2019-08-05 10:37:28,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-08-05 10:37:28,974 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:28,975 INFO L399 BasicCegarLoop]: trace histogram [76, 1, 1] [2019-08-05 10:37:28,975 INFO L418 AbstractCegarLoop]: === Iteration 77 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:28,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:28,975 INFO L82 PathProgramCache]: Analyzing trace with hash -274078446, now seen corresponding path program 76 times [2019-08-05 10:37:28,976 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:29,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 78 conjunts are in the unsatisfiable core [2019-08-05 10:37:29,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:29,057 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,224 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:37:29,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,312 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,322 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,332 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,343 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,354 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,380 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,393 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,409 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,426 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,442 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,458 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,475 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,497 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,527 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,548 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,612 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,713 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,741 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,860 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,887 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,912 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:29,971 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,000 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,029 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,059 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,091 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,123 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,188 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,263 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,300 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,335 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,372 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,412 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,453 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,494 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,581 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,664 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,705 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,748 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,794 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,842 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,888 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:30,955 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,001 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,055 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,157 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,208 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,288 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,344 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,407 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,462 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,571 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,745 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,804 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,865 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,925 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:31,985 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,047 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,107 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,170 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,235 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,302 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:32,437 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:32,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2019-08-05 10:37:32,438 INFO L454 AbstractCegarLoop]: Interpolant automaton has 79 states [2019-08-05 10:37:32,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2019-08-05 10:37:32,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2019-08-05 10:37:32,438 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand 79 states. [2019-08-05 10:37:32,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:32,541 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2019-08-05 10:37:32,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2019-08-05 10:37:32,542 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 78 [2019-08-05 10:37:32,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:32,542 INFO L225 Difference]: With dead ends: 80 [2019-08-05 10:37:32,543 INFO L226 Difference]: Without dead ends: 80 [2019-08-05 10:37:32,543 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2019-08-05 10:37:32,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-08-05 10:37:32,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2019-08-05 10:37:32,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-08-05 10:37:32,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2019-08-05 10:37:32,546 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 78 [2019-08-05 10:37:32,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:32,546 INFO L475 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2019-08-05 10:37:32,547 INFO L476 AbstractCegarLoop]: Interpolant automaton has 79 states. [2019-08-05 10:37:32,547 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2019-08-05 10:37:32,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-08-05 10:37:32,547 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:32,547 INFO L399 BasicCegarLoop]: trace histogram [77, 1, 1] [2019-08-05 10:37:32,547 INFO L418 AbstractCegarLoop]: === Iteration 78 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:32,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:32,548 INFO L82 PathProgramCache]: Analyzing trace with hash 93502969, now seen corresponding path program 77 times [2019-08-05 10:37:32,548 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:32,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 79 conjunts are in the unsatisfiable core [2019-08-05 10:37:32,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:32,626 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,780 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 3 [2019-08-05 10:37:32,780 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,915 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,924 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,934 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,949 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,969 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:32,999 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,012 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,041 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,056 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,072 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,090 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,109 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,128 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,148 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,168 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,190 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,224 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,272 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,297 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,322 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,378 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,446 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,477 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,505 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,539 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,571 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,601 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,637 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,674 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,707 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,747 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,822 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,864 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,904 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,945 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:33,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,032 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,076 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,120 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,166 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,209 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,259 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,369 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,419 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,470 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,520 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,568 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,620 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,670 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,787 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:34,861 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,056 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,121 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,174 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,233 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,352 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,409 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,529 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,717 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,780 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,841 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,904 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:35,969 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,033 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,102 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:36,102 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:36,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2019-08-05 10:37:36,103 INFO L454 AbstractCegarLoop]: Interpolant automaton has 80 states [2019-08-05 10:37:36,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2019-08-05 10:37:36,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2019-08-05 10:37:36,104 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 80 states. [2019-08-05 10:37:36,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:36,240 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2019-08-05 10:37:36,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2019-08-05 10:37:36,241 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 79 [2019-08-05 10:37:36,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:36,241 INFO L225 Difference]: With dead ends: 81 [2019-08-05 10:37:36,241 INFO L226 Difference]: Without dead ends: 81 [2019-08-05 10:37:36,242 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2019-08-05 10:37:36,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-08-05 10:37:36,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2019-08-05 10:37:36,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-08-05 10:37:36,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2019-08-05 10:37:36,244 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 79 [2019-08-05 10:37:36,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:36,244 INFO L475 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2019-08-05 10:37:36,244 INFO L476 AbstractCegarLoop]: Interpolant automaton has 80 states. [2019-08-05 10:37:36,244 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2019-08-05 10:37:36,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-08-05 10:37:36,244 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:36,245 INFO L399 BasicCegarLoop]: trace histogram [78, 1, 1] [2019-08-05 10:37:36,245 INFO L418 AbstractCegarLoop]: === Iteration 79 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:36,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:36,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1396375054, now seen corresponding path program 78 times [2019-08-05 10:37:36,245 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:36,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 80 conjunts are in the unsatisfiable core [2019-08-05 10:37:36,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:36,285 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,305 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,332 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,361 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,373 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,385 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,398 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,411 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,425 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,439 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,473 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,492 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,512 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,533 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,552 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,574 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,597 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,623 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,646 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,672 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,698 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,723 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,748 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,773 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,814 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,845 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,874 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,906 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,936 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:36,970 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,005 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,039 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,077 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,112 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,148 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,188 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,227 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,269 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,309 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,389 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,432 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,475 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,519 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,564 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,674 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,721 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,767 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,818 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,875 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,925 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:37,972 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,024 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,076 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,183 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,238 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,345 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,402 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,467 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,525 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,584 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,645 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,707 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:38,771 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:39,211 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:39,278 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:39,344 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:39,407 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:39,471 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:39,541 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:39,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:39,676 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:39,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:39,763 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:39,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2019-08-05 10:37:39,764 INFO L454 AbstractCegarLoop]: Interpolant automaton has 81 states [2019-08-05 10:37:39,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2019-08-05 10:37:39,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2019-08-05 10:37:39,765 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand 81 states. [2019-08-05 10:37:40,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:40,323 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2019-08-05 10:37:40,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2019-08-05 10:37:40,323 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 80 [2019-08-05 10:37:40,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:40,324 INFO L225 Difference]: With dead ends: 82 [2019-08-05 10:37:40,324 INFO L226 Difference]: Without dead ends: 82 [2019-08-05 10:37:40,325 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2019-08-05 10:37:40,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-08-05 10:37:40,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-08-05 10:37:40,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-08-05 10:37:40,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2019-08-05 10:37:40,327 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 80 [2019-08-05 10:37:40,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:40,328 INFO L475 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2019-08-05 10:37:40,328 INFO L476 AbstractCegarLoop]: Interpolant automaton has 81 states. [2019-08-05 10:37:40,328 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2019-08-05 10:37:40,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-08-05 10:37:40,329 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:40,329 INFO L399 BasicCegarLoop]: trace histogram [79, 1, 1] [2019-08-05 10:37:40,329 INFO L418 AbstractCegarLoop]: === Iteration 80 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:40,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:40,330 INFO L82 PathProgramCache]: Analyzing trace with hash -337953511, now seen corresponding path program 79 times [2019-08-05 10:37:40,330 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:40,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 81 conjunts are in the unsatisfiable core [2019-08-05 10:37:40,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:40,416 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,522 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,528 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,548 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,559 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,570 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,584 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,595 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,610 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,624 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,638 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,673 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,711 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,729 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,749 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,771 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,793 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,820 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,843 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,867 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,894 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,919 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,945 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,973 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:40,999 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,029 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,058 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,091 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,121 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,187 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,223 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,256 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,293 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,331 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,368 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,404 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,441 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,482 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,522 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,562 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,606 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,647 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,739 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,783 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,845 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,939 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:41,986 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,039 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,092 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,142 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,247 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,303 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,359 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,416 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,531 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,593 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,651 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,713 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,773 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,834 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:42,951 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,012 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,093 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,158 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,222 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,391 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,463 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,623 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:43,700 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:43,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [80] total 80 [2019-08-05 10:37:43,700 INFO L454 AbstractCegarLoop]: Interpolant automaton has 82 states [2019-08-05 10:37:43,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2019-08-05 10:37:43,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2019-08-05 10:37:43,701 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 82 states. [2019-08-05 10:37:43,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:43,814 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2019-08-05 10:37:43,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2019-08-05 10:37:43,815 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 81 [2019-08-05 10:37:43,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:43,816 INFO L225 Difference]: With dead ends: 83 [2019-08-05 10:37:43,816 INFO L226 Difference]: Without dead ends: 83 [2019-08-05 10:37:43,817 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2019-08-05 10:37:43,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-08-05 10:37:43,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-08-05 10:37:43,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-08-05 10:37:43,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 83 transitions. [2019-08-05 10:37:43,819 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 83 transitions. Word has length 81 [2019-08-05 10:37:43,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:43,819 INFO L475 AbstractCegarLoop]: Abstraction has 83 states and 83 transitions. [2019-08-05 10:37:43,819 INFO L476 AbstractCegarLoop]: Interpolant automaton has 82 states. [2019-08-05 10:37:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2019-08-05 10:37:43,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-08-05 10:37:43,820 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:43,820 INFO L399 BasicCegarLoop]: trace histogram [80, 1, 1] [2019-08-05 10:37:43,820 INFO L418 AbstractCegarLoop]: === Iteration 81 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:43,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:43,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1886624046, now seen corresponding path program 80 times [2019-08-05 10:37:43,821 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:43,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 82 conjunts are in the unsatisfiable core [2019-08-05 10:37:43,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:43,909 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,927 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,935 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,944 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,954 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,967 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,979 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:43,992 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,004 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,021 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,036 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,053 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,069 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,086 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,102 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,121 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,140 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,161 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,180 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,202 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,274 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,301 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,328 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,357 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,416 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,446 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,477 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,509 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,575 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,642 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,677 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,712 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,746 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,783 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,824 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,860 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:44,897 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,020 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,098 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,233 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,336 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,379 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,423 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,480 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,526 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,572 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,620 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,668 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,733 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,831 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,882 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,935 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:45,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,041 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,236 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,292 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,348 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,407 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,464 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,596 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,712 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,773 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,904 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:46,969 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:47,034 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:47,102 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:47,177 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:47,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:47,317 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:47,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:47,395 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:47,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2019-08-05 10:37:47,395 INFO L454 AbstractCegarLoop]: Interpolant automaton has 83 states [2019-08-05 10:37:47,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2019-08-05 10:37:47,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2019-08-05 10:37:47,396 INFO L87 Difference]: Start difference. First operand 83 states and 83 transitions. Second operand 83 states. [2019-08-05 10:37:47,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:47,515 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2019-08-05 10:37:47,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2019-08-05 10:37:47,515 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 82 [2019-08-05 10:37:47,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:47,516 INFO L225 Difference]: With dead ends: 84 [2019-08-05 10:37:47,516 INFO L226 Difference]: Without dead ends: 84 [2019-08-05 10:37:47,517 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2019-08-05 10:37:47,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-08-05 10:37:47,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2019-08-05 10:37:47,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-08-05 10:37:47,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2019-08-05 10:37:47,519 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 82 [2019-08-05 10:37:47,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:47,519 INFO L475 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2019-08-05 10:37:47,519 INFO L476 AbstractCegarLoop]: Interpolant automaton has 83 states. [2019-08-05 10:37:47,519 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2019-08-05 10:37:47,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-08-05 10:37:47,520 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:47,520 INFO L399 BasicCegarLoop]: trace histogram [81, 1, 1] [2019-08-05 10:37:47,520 INFO L418 AbstractCegarLoop]: === Iteration 82 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:47,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:47,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1644196921, now seen corresponding path program 81 times [2019-08-05 10:37:47,521 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:47,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 83 conjunts are in the unsatisfiable core [2019-08-05 10:37:47,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:47,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:47,681 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:47,689 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:47,699 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:47,711 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:47,723 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:47,989 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:37:47,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:48,297 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:37:48,298 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:48,636 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:37:48,637 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:48,987 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:37:48,988 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:49,350 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:37:49,351 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:49,753 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:37:49,754 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,179 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:37:50,180 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,226 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,271 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,300 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,326 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,347 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,366 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,388 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,433 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,456 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,481 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,510 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,537 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,564 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,593 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,620 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,650 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,679 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,710 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,741 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,774 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,808 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,840 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,875 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,909 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,949 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:50,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,023 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,061 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,104 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,144 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,186 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,243 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,287 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,329 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,375 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,436 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,484 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,531 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,578 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,624 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,678 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,729 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,782 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,835 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,889 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,946 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:51,998 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,051 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,174 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,228 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,289 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,348 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,408 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,470 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,719 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,791 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,857 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:52,994 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,069 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,153 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3321 backedges. 0 proven. 3321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:53,373 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:53,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [82] total 82 [2019-08-05 10:37:53,373 INFO L454 AbstractCegarLoop]: Interpolant automaton has 84 states [2019-08-05 10:37:53,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2019-08-05 10:37:53,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2019-08-05 10:37:53,374 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand 84 states. [2019-08-05 10:37:53,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:53,483 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2019-08-05 10:37:53,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2019-08-05 10:37:53,484 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 83 [2019-08-05 10:37:53,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:53,485 INFO L225 Difference]: With dead ends: 85 [2019-08-05 10:37:53,485 INFO L226 Difference]: Without dead ends: 85 [2019-08-05 10:37:53,485 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2019-08-05 10:37:53,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-08-05 10:37:53,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-08-05 10:37:53,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-08-05 10:37:53,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 85 transitions. [2019-08-05 10:37:53,487 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 85 transitions. Word has length 83 [2019-08-05 10:37:53,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:53,488 INFO L475 AbstractCegarLoop]: Abstraction has 85 states and 85 transitions. [2019-08-05 10:37:53,488 INFO L476 AbstractCegarLoop]: Interpolant automaton has 84 states. [2019-08-05 10:37:53,488 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2019-08-05 10:37:53,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-08-05 10:37:53,488 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:53,488 INFO L399 BasicCegarLoop]: trace histogram [82, 1, 1] [2019-08-05 10:37:53,489 INFO L418 AbstractCegarLoop]: === Iteration 83 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:53,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:53,489 INFO L82 PathProgramCache]: Analyzing trace with hash -569502798, now seen corresponding path program 82 times [2019-08-05 10:37:53,489 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:53,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 84 conjunts are in the unsatisfiable core [2019-08-05 10:37:53,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:53,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,558 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,575 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,586 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,596 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,629 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,642 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,656 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,673 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,694 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,711 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,729 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,746 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,765 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,805 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,825 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,849 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,870 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,895 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,919 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,947 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,971 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:53,997 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,024 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,056 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,118 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,148 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,178 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,210 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,286 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,359 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,398 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,434 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,473 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,553 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,635 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,677 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,721 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,825 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,866 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:54,959 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:55,005 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:55,175 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2019-08-05 10:37:55,176 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:55,419 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:55,473 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:55,524 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:55,573 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:55,624 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:55,675 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:55,728 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:55,785 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:55,865 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:55,926 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:55,981 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,037 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,153 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,213 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,356 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,416 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,478 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,605 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,668 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,820 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,887 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:56,955 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,099 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,169 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,245 INFO L134 CoverageAnalysis]: Checked inductivity of 3403 backedges. 0 proven. 3403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:37:57,246 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:37:57,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2019-08-05 10:37:57,246 INFO L454 AbstractCegarLoop]: Interpolant automaton has 85 states [2019-08-05 10:37:57,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2019-08-05 10:37:57,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2019-08-05 10:37:57,247 INFO L87 Difference]: Start difference. First operand 85 states and 85 transitions. Second operand 85 states. [2019-08-05 10:37:57,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:37:57,355 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2019-08-05 10:37:57,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2019-08-05 10:37:57,355 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 84 [2019-08-05 10:37:57,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:37:57,356 INFO L225 Difference]: With dead ends: 86 [2019-08-05 10:37:57,356 INFO L226 Difference]: Without dead ends: 86 [2019-08-05 10:37:57,357 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2019-08-05 10:37:57,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-08-05 10:37:57,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2019-08-05 10:37:57,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-08-05 10:37:57,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2019-08-05 10:37:57,359 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 84 [2019-08-05 10:37:57,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:37:57,359 INFO L475 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2019-08-05 10:37:57,359 INFO L476 AbstractCegarLoop]: Interpolant automaton has 85 states. [2019-08-05 10:37:57,360 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2019-08-05 10:37:57,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-08-05 10:37:57,360 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:37:57,361 INFO L399 BasicCegarLoop]: trace histogram [83, 1, 1] [2019-08-05 10:37:57,361 INFO L418 AbstractCegarLoop]: === Iteration 84 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:37:57,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:37:57,361 INFO L82 PathProgramCache]: Analyzing trace with hash -474717351, now seen corresponding path program 83 times [2019-08-05 10:37:57,362 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:37:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:37:57,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 85 conjunts are in the unsatisfiable core [2019-08-05 10:37:57,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:37:57,412 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,440 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,447 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,457 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,477 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,488 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,500 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,528 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,558 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,574 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,611 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,629 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,648 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,667 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,689 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,713 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,735 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,760 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,786 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,865 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,892 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,919 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,947 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:57,978 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,037 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,068 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,102 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,133 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,168 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,268 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,305 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,343 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,381 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,423 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,464 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,515 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,555 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,599 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,642 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,685 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,731 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,876 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,929 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:58,977 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,084 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,133 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,237 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,285 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,335 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,389 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,444 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,498 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,555 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,614 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,670 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,730 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,794 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,857 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:37:59,982 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:00,067 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:00,133 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:00,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:00,257 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:00,425 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:00,626 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:00,751 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:00,822 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:00,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:00,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,029 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,102 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,175 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3486 backedges. 0 proven. 3486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:01,254 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:01,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [84] total 84 [2019-08-05 10:38:01,254 INFO L454 AbstractCegarLoop]: Interpolant automaton has 86 states [2019-08-05 10:38:01,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2019-08-05 10:38:01,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2019-08-05 10:38:01,256 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 86 states. [2019-08-05 10:38:01,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:01,468 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2019-08-05 10:38:01,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2019-08-05 10:38:01,468 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 85 [2019-08-05 10:38:01,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:01,469 INFO L225 Difference]: With dead ends: 87 [2019-08-05 10:38:01,469 INFO L226 Difference]: Without dead ends: 87 [2019-08-05 10:38:01,470 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2019-08-05 10:38:01,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-08-05 10:38:01,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-08-05 10:38:01,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-08-05 10:38:01,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2019-08-05 10:38:01,472 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 85 [2019-08-05 10:38:01,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:01,472 INFO L475 AbstractCegarLoop]: Abstraction has 87 states and 87 transitions. [2019-08-05 10:38:01,472 INFO L476 AbstractCegarLoop]: Interpolant automaton has 86 states. [2019-08-05 10:38:01,472 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2019-08-05 10:38:01,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-08-05 10:38:01,473 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:01,473 INFO L399 BasicCegarLoop]: trace histogram [84, 1, 1] [2019-08-05 10:38:01,473 INFO L418 AbstractCegarLoop]: === Iteration 85 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:01,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:01,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1831335790, now seen corresponding path program 84 times [2019-08-05 10:38:01,474 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:01,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 86 conjunts are in the unsatisfiable core [2019-08-05 10:38:01,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:01,508 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,552 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,562 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,574 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,587 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,600 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,614 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,630 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,646 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,662 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,678 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,696 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,715 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,734 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,754 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,796 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,818 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,842 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,864 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,915 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,969 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:01,999 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,026 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,057 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,092 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,124 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,157 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,220 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,256 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,292 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,329 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,404 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,445 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,485 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,524 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,578 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,618 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,659 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,698 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,742 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,786 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,834 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,881 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,929 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:02,976 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,024 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,076 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,153 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,208 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,260 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,312 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,368 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,422 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,481 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,707 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,771 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,834 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,896 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:03,959 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,024 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,085 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,146 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,213 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,277 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,346 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,414 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,586 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,657 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,729 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,887 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:04,991 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,068 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 3570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:05,154 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:05,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [85] total 85 [2019-08-05 10:38:05,155 INFO L454 AbstractCegarLoop]: Interpolant automaton has 87 states [2019-08-05 10:38:05,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2019-08-05 10:38:05,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2019-08-05 10:38:05,156 INFO L87 Difference]: Start difference. First operand 87 states and 87 transitions. Second operand 87 states. [2019-08-05 10:38:05,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:05,265 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2019-08-05 10:38:05,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2019-08-05 10:38:05,265 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 86 [2019-08-05 10:38:05,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:05,266 INFO L225 Difference]: With dead ends: 88 [2019-08-05 10:38:05,266 INFO L226 Difference]: Without dead ends: 88 [2019-08-05 10:38:05,267 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2019-08-05 10:38:05,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-08-05 10:38:05,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-08-05 10:38:05,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-08-05 10:38:05,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2019-08-05 10:38:05,269 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 86 [2019-08-05 10:38:05,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:05,270 INFO L475 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2019-08-05 10:38:05,270 INFO L476 AbstractCegarLoop]: Interpolant automaton has 87 states. [2019-08-05 10:38:05,270 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2019-08-05 10:38:05,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-08-05 10:38:05,270 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:05,270 INFO L399 BasicCegarLoop]: trace histogram [85, 1, 1] [2019-08-05 10:38:05,271 INFO L418 AbstractCegarLoop]: === Iteration 86 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:05,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:05,271 INFO L82 PathProgramCache]: Analyzing trace with hash -936834439, now seen corresponding path program 85 times [2019-08-05 10:38:05,272 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:05,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 87 conjunts are in the unsatisfiable core [2019-08-05 10:38:05,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:05,311 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,325 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,333 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,341 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,351 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,361 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,373 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,431 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,490 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,536 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,596 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,658 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,682 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,760 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,835 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,854 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,873 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,916 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,964 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:05,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,016 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,042 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,070 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,098 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,127 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,157 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,187 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,218 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,280 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,318 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,352 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,385 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,459 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,494 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,533 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,573 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,614 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,656 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,696 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,737 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,887 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,933 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:06,976 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,071 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,120 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,170 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,221 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,273 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,324 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,379 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,435 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,488 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,544 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,601 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,658 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,715 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,771 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,827 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,887 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:07,964 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,027 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,147 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,214 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,276 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,339 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,411 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,478 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,697 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,769 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,843 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,935 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,082 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3655 backedges. 0 proven. 3655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:09,164 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:09,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [86] total 86 [2019-08-05 10:38:09,164 INFO L454 AbstractCegarLoop]: Interpolant automaton has 88 states [2019-08-05 10:38:09,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2019-08-05 10:38:09,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2019-08-05 10:38:09,165 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 88 states. [2019-08-05 10:38:09,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:09,355 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2019-08-05 10:38:09,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2019-08-05 10:38:09,355 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 87 [2019-08-05 10:38:09,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:09,356 INFO L225 Difference]: With dead ends: 89 [2019-08-05 10:38:09,356 INFO L226 Difference]: Without dead ends: 89 [2019-08-05 10:38:09,357 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2019-08-05 10:38:09,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-08-05 10:38:09,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2019-08-05 10:38:09,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-08-05 10:38:09,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2019-08-05 10:38:09,358 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 87 [2019-08-05 10:38:09,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:09,359 INFO L475 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2019-08-05 10:38:09,359 INFO L476 AbstractCegarLoop]: Interpolant automaton has 88 states. [2019-08-05 10:38:09,359 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2019-08-05 10:38:09,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-08-05 10:38:09,361 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:09,361 INFO L399 BasicCegarLoop]: trace histogram [86, 1, 1] [2019-08-05 10:38:09,361 INFO L418 AbstractCegarLoop]: === Iteration 87 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:09,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:09,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1022903666, now seen corresponding path program 86 times [2019-08-05 10:38:09,362 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:09,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 88 conjunts are in the unsatisfiable core [2019-08-05 10:38:09,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:09,404 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,419 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,428 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,438 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,448 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,461 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,473 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,486 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,500 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,529 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,546 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,563 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,581 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,603 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,623 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,644 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,665 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,686 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,707 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,730 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,756 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,805 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,862 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,950 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,982 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,030 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,062 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,094 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,130 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,169 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,206 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,241 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,279 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,320 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,358 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,399 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,443 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,484 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,631 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,803 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,895 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,946 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,992 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,039 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,084 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,132 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,228 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,296 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,344 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,395 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,446 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,498 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,555 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,665 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,720 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,776 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,855 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,909 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,969 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,031 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,089 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,150 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,214 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,280 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,346 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,417 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,482 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,548 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,613 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,680 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,746 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,814 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,881 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,063 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,136 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,208 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,285 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,381 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 3741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:13,381 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:13,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [87] total 87 [2019-08-05 10:38:13,382 INFO L454 AbstractCegarLoop]: Interpolant automaton has 89 states [2019-08-05 10:38:13,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2019-08-05 10:38:13,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2019-08-05 10:38:13,383 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand 89 states. [2019-08-05 10:38:13,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:13,499 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2019-08-05 10:38:13,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2019-08-05 10:38:13,499 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 88 [2019-08-05 10:38:13,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:13,500 INFO L225 Difference]: With dead ends: 90 [2019-08-05 10:38:13,500 INFO L226 Difference]: Without dead ends: 90 [2019-08-05 10:38:13,501 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2019-08-05 10:38:13,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-08-05 10:38:13,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2019-08-05 10:38:13,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-08-05 10:38:13,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2019-08-05 10:38:13,503 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 88 [2019-08-05 10:38:13,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:13,503 INFO L475 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2019-08-05 10:38:13,503 INFO L476 AbstractCegarLoop]: Interpolant automaton has 89 states. [2019-08-05 10:38:13,503 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2019-08-05 10:38:13,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-08-05 10:38:13,503 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:13,504 INFO L399 BasicCegarLoop]: trace histogram [87, 1, 1] [2019-08-05 10:38:13,504 INFO L418 AbstractCegarLoop]: === Iteration 88 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:13,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:13,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1645242777, now seen corresponding path program 87 times [2019-08-05 10:38:13,504 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:13,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 89 conjunts are in the unsatisfiable core [2019-08-05 10:38:13,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:13,543 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,563 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,571 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,590 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,602 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,615 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,626 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,640 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,655 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,672 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,689 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,708 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,725 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,745 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,765 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,805 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,826 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,847 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,870 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,894 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,938 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,962 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,016 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,044 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,075 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,106 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,137 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,168 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,198 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,232 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,264 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,300 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,337 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,373 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,408 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,475 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,511 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,551 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,597 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,640 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,682 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,726 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,769 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,814 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,858 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,908 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,956 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,003 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,052 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,107 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,163 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,265 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,319 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,371 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,426 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,558 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,618 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,759 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,904 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,973 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,035 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,098 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,160 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,220 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,288 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,353 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,417 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,552 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,620 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,684 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,752 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,820 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,887 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,034 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,107 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,254 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,329 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,401 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 0 proven. 3828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:17,484 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:17,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [88] total 88 [2019-08-05 10:38:17,484 INFO L454 AbstractCegarLoop]: Interpolant automaton has 90 states [2019-08-05 10:38:17,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2019-08-05 10:38:17,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2019-08-05 10:38:17,485 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 90 states. [2019-08-05 10:38:17,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:17,710 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2019-08-05 10:38:17,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2019-08-05 10:38:17,710 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 89 [2019-08-05 10:38:17,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:17,711 INFO L225 Difference]: With dead ends: 91 [2019-08-05 10:38:17,711 INFO L226 Difference]: Without dead ends: 91 [2019-08-05 10:38:17,711 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2019-08-05 10:38:17,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-08-05 10:38:17,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-08-05 10:38:17,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-08-05 10:38:17,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2019-08-05 10:38:17,713 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 89 [2019-08-05 10:38:17,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:17,713 INFO L475 AbstractCegarLoop]: Abstraction has 91 states and 91 transitions. [2019-08-05 10:38:17,713 INFO L476 AbstractCegarLoop]: Interpolant automaton has 90 states. [2019-08-05 10:38:17,713 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2019-08-05 10:38:17,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-08-05 10:38:17,713 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:17,713 INFO L399 BasicCegarLoop]: trace histogram [88, 1, 1] [2019-08-05 10:38:17,714 INFO L418 AbstractCegarLoop]: === Iteration 89 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:17,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:17,714 INFO L82 PathProgramCache]: Analyzing trace with hash -537081262, now seen corresponding path program 88 times [2019-08-05 10:38:17,714 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:17,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 90 conjunts are in the unsatisfiable core [2019-08-05 10:38:17,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:17,754 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,768 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,785 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,795 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,835 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,848 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,861 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,873 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,886 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,902 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,919 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,934 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,952 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,970 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,029 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,049 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,069 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,094 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,116 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,141 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,166 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,191 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,275 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,301 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,329 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,360 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,390 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,454 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,491 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,529 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,566 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,604 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,638 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,675 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,716 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,773 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,810 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,851 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,894 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,934 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,977 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,019 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,064 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,109 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,156 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,252 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,349 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,399 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,450 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,505 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,558 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,613 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,666 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,721 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,787 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,843 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,900 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,959 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,042 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,102 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,165 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,226 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,290 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,353 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,416 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,479 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,543 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,612 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,682 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,751 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,034 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,177 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,247 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,389 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,548 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,626 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,701 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3916 backedges. 0 proven. 3916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:21,784 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:21,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [89] total 89 [2019-08-05 10:38:21,784 INFO L454 AbstractCegarLoop]: Interpolant automaton has 91 states [2019-08-05 10:38:21,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2019-08-05 10:38:21,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2019-08-05 10:38:21,785 INFO L87 Difference]: Start difference. First operand 91 states and 91 transitions. Second operand 91 states. [2019-08-05 10:38:21,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:21,929 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2019-08-05 10:38:21,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2019-08-05 10:38:21,930 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 90 [2019-08-05 10:38:21,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:21,930 INFO L225 Difference]: With dead ends: 92 [2019-08-05 10:38:21,930 INFO L226 Difference]: Without dead ends: 92 [2019-08-05 10:38:21,931 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2019-08-05 10:38:21,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-08-05 10:38:21,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2019-08-05 10:38:21,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-08-05 10:38:21,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2019-08-05 10:38:21,932 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 90 [2019-08-05 10:38:21,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:21,932 INFO L475 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2019-08-05 10:38:21,932 INFO L476 AbstractCegarLoop]: Interpolant automaton has 91 states. [2019-08-05 10:38:21,932 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2019-08-05 10:38:21,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-08-05 10:38:21,933 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:21,933 INFO L399 BasicCegarLoop]: trace histogram [89, 1, 1] [2019-08-05 10:38:21,933 INFO L418 AbstractCegarLoop]: === Iteration 90 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:21,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:21,933 INFO L82 PathProgramCache]: Analyzing trace with hash 530350265, now seen corresponding path program 89 times [2019-08-05 10:38:21,934 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:21,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 91 conjunts are in the unsatisfiable core [2019-08-05 10:38:21,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:21,981 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,996 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,006 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,015 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,026 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,039 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,050 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,063 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,078 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,092 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,109 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,126 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,142 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,160 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,178 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,199 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,221 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,244 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,267 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,288 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,318 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,342 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,369 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,396 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,444 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,471 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,498 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,533 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,566 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,598 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,629 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,661 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,695 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,734 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,766 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,802 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,872 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,911 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,951 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,993 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,034 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,076 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,113 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,155 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,195 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,241 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,295 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,398 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,442 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,491 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,585 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,634 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,684 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,737 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,788 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,843 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,902 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,959 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,018 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,077 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,135 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,198 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,257 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,317 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,374 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,436 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,497 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,560 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,625 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,715 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,779 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,880 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,951 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,019 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,088 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,161 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,233 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,399 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,473 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,624 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,701 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,850 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 0 proven. 4005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:26,068 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:26,068 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [90] total 90 [2019-08-05 10:38:26,069 INFO L454 AbstractCegarLoop]: Interpolant automaton has 92 states [2019-08-05 10:38:26,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2019-08-05 10:38:26,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2019-08-05 10:38:26,070 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 92 states. [2019-08-05 10:38:26,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:26,993 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2019-08-05 10:38:26,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2019-08-05 10:38:26,993 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 91 [2019-08-05 10:38:26,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:26,994 INFO L225 Difference]: With dead ends: 93 [2019-08-05 10:38:26,994 INFO L226 Difference]: Without dead ends: 93 [2019-08-05 10:38:26,995 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2019-08-05 10:38:26,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-08-05 10:38:26,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2019-08-05 10:38:26,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-08-05 10:38:26,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2019-08-05 10:38:26,996 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 91 [2019-08-05 10:38:26,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:26,997 INFO L475 AbstractCegarLoop]: Abstraction has 93 states and 93 transitions. [2019-08-05 10:38:26,997 INFO L476 AbstractCegarLoop]: Interpolant automaton has 92 states. [2019-08-05 10:38:26,997 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2019-08-05 10:38:26,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-08-05 10:38:26,997 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:26,997 INFO L399 BasicCegarLoop]: trace histogram [90, 1, 1] [2019-08-05 10:38:26,998 INFO L418 AbstractCegarLoop]: === Iteration 91 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:26,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:26,998 INFO L82 PathProgramCache]: Analyzing trace with hash -739010766, now seen corresponding path program 90 times [2019-08-05 10:38:26,998 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:27,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 92 conjunts are in the unsatisfiable core [2019-08-05 10:38:27,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:27,057 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,082 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,089 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,099 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,108 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,120 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,132 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,144 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,157 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,171 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,220 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,236 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,254 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,271 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,292 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,311 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,334 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,357 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,383 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,407 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,431 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,458 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,513 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,571 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,600 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,631 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,671 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,724 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,757 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,791 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,823 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,856 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,930 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,966 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,027 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,066 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,107 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,150 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,188 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,230 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,272 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,320 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,366 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,412 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,459 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,509 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,554 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,601 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,703 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,805 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,856 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,909 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,962 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,018 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,077 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,136 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,253 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,312 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,375 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,438 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,507 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,566 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,632 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,694 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,757 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,821 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,886 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,949 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,016 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,085 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,156 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,303 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,383 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,473 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,543 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,616 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,689 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,764 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,837 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,919 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,997 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:31,178 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:31,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [91] total 91 [2019-08-05 10:38:31,178 INFO L454 AbstractCegarLoop]: Interpolant automaton has 93 states [2019-08-05 10:38:31,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2019-08-05 10:38:31,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2019-08-05 10:38:31,179 INFO L87 Difference]: Start difference. First operand 93 states and 93 transitions. Second operand 93 states. [2019-08-05 10:38:31,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:31,378 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2019-08-05 10:38:31,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2019-08-05 10:38:31,378 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 92 [2019-08-05 10:38:31,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:31,379 INFO L225 Difference]: With dead ends: 94 [2019-08-05 10:38:31,379 INFO L226 Difference]: Without dead ends: 94 [2019-08-05 10:38:31,380 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2019-08-05 10:38:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-08-05 10:38:31,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-08-05 10:38:31,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-08-05 10:38:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2019-08-05 10:38:31,381 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 92 [2019-08-05 10:38:31,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:31,381 INFO L475 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2019-08-05 10:38:31,381 INFO L476 AbstractCegarLoop]: Interpolant automaton has 93 states. [2019-08-05 10:38:31,381 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2019-08-05 10:38:31,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-08-05 10:38:31,381 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:31,382 INFO L399 BasicCegarLoop]: trace histogram [91, 1, 1] [2019-08-05 10:38:31,382 INFO L418 AbstractCegarLoop]: === Iteration 92 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:31,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:31,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1434497063, now seen corresponding path program 91 times [2019-08-05 10:38:31,383 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:31,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 93 conjunts are in the unsatisfiable core [2019-08-05 10:38:31,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:31,423 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,432 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,440 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,449 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,458 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,469 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,480 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,492 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,504 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,533 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,548 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,564 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,581 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,599 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,617 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,637 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,656 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,676 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,697 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,721 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,744 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,767 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,791 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,820 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,847 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,874 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,901 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,930 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,958 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,022 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,057 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,090 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,124 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,159 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,193 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,230 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,265 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,301 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,339 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,379 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,420 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,462 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,587 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,633 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,679 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,725 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,888 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,955 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,057 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,157 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,213 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,268 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,396 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,454 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,515 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,573 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,632 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,753 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,811 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,873 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,933 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,000 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,071 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,138 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,205 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,271 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,344 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,413 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,479 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,552 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,625 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,694 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,768 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,846 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,921 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,993 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,069 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,144 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,318 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,401 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:35,484 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:35,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [92] total 92 [2019-08-05 10:38:35,485 INFO L454 AbstractCegarLoop]: Interpolant automaton has 94 states [2019-08-05 10:38:35,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2019-08-05 10:38:35,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2019-08-05 10:38:35,486 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 94 states. [2019-08-05 10:38:35,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:35,617 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2019-08-05 10:38:35,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2019-08-05 10:38:35,617 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 93 [2019-08-05 10:38:35,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:35,618 INFO L225 Difference]: With dead ends: 95 [2019-08-05 10:38:35,618 INFO L226 Difference]: Without dead ends: 95 [2019-08-05 10:38:35,619 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2019-08-05 10:38:35,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-08-05 10:38:35,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-08-05 10:38:35,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-08-05 10:38:35,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2019-08-05 10:38:35,621 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 93 [2019-08-05 10:38:35,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:35,621 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2019-08-05 10:38:35,621 INFO L476 AbstractCegarLoop]: Interpolant automaton has 94 states. [2019-08-05 10:38:35,622 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2019-08-05 10:38:35,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-08-05 10:38:35,622 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:35,622 INFO L399 BasicCegarLoop]: trace histogram [92, 1, 1] [2019-08-05 10:38:35,622 INFO L418 AbstractCegarLoop]: === Iteration 93 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:35,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:35,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1519735790, now seen corresponding path program 92 times [2019-08-05 10:38:35,623 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:35,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 94 conjunts are in the unsatisfiable core [2019-08-05 10:38:35,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:35,727 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,860 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,871 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,881 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,891 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,903 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,915 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,927 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,940 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,955 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,970 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,986 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,002 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,020 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,038 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,057 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,076 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,095 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,116 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,206 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,396 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,510 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,536 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,565 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,649 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,680 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,711 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,740 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,774 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,805 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,876 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,912 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,951 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,984 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,021 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,057 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,137 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,175 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,219 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,261 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,304 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,349 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,406 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,450 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,495 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,589 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,635 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,685 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,753 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,807 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,882 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,933 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,988 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,045 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,095 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,205 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,268 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,326 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,402 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,459 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,524 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,586 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,651 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,714 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,778 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,846 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,911 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,998 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,062 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,129 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,198 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,268 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,339 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,407 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,477 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,553 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,629 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,702 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,778 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,865 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,021 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,101 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:40,292 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:40,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [93] total 93 [2019-08-05 10:38:40,292 INFO L454 AbstractCegarLoop]: Interpolant automaton has 95 states [2019-08-05 10:38:40,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2019-08-05 10:38:40,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2019-08-05 10:38:40,293 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand 95 states. [2019-08-05 10:38:40,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:40,412 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2019-08-05 10:38:40,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2019-08-05 10:38:40,412 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 94 [2019-08-05 10:38:40,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:40,413 INFO L225 Difference]: With dead ends: 96 [2019-08-05 10:38:40,413 INFO L226 Difference]: Without dead ends: 96 [2019-08-05 10:38:40,414 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2019-08-05 10:38:40,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-08-05 10:38:40,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2019-08-05 10:38:40,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-08-05 10:38:40,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2019-08-05 10:38:40,417 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 94 [2019-08-05 10:38:40,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:40,417 INFO L475 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2019-08-05 10:38:40,417 INFO L476 AbstractCegarLoop]: Interpolant automaton has 95 states. [2019-08-05 10:38:40,417 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2019-08-05 10:38:40,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-08-05 10:38:40,418 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:40,418 INFO L399 BasicCegarLoop]: trace histogram [93, 1, 1] [2019-08-05 10:38:40,418 INFO L418 AbstractCegarLoop]: === Iteration 94 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:40,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:40,418 INFO L82 PathProgramCache]: Analyzing trace with hash 132830969, now seen corresponding path program 93 times [2019-08-05 10:38:40,419 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:40,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 95 conjunts are in the unsatisfiable core [2019-08-05 10:38:40,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:40,519 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,559 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,576 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,587 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,600 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,613 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,626 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,638 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,680 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,693 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,710 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,726 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,744 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,764 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,804 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,826 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,847 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,868 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,891 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,915 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,967 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,996 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,026 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,058 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,088 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,117 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,145 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,178 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,209 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,314 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,355 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,389 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,426 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,464 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,539 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,583 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,623 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,662 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,702 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,744 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,792 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,834 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,880 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,937 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,983 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,034 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,083 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,135 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,188 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,240 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,291 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,347 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,399 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,510 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,564 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,622 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,681 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,764 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,824 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,885 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,947 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,006 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,066 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,254 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,317 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,381 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,446 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,515 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,579 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,668 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,735 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,806 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,886 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,957 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,042 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,114 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,193 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,264 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,340 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,413 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,485 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,565 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,644 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,728 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,808 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4371 backedges. 0 proven. 4371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:44,895 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:44,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [94] total 94 [2019-08-05 10:38:44,896 INFO L454 AbstractCegarLoop]: Interpolant automaton has 96 states [2019-08-05 10:38:44,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2019-08-05 10:38:44,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2019-08-05 10:38:44,897 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 96 states. [2019-08-05 10:38:45,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:45,029 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2019-08-05 10:38:45,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2019-08-05 10:38:45,029 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 95 [2019-08-05 10:38:45,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:45,030 INFO L225 Difference]: With dead ends: 97 [2019-08-05 10:38:45,030 INFO L226 Difference]: Without dead ends: 97 [2019-08-05 10:38:45,030 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2019-08-05 10:38:45,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-08-05 10:38:45,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2019-08-05 10:38:45,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-08-05 10:38:45,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2019-08-05 10:38:45,032 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 95 [2019-08-05 10:38:45,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:45,032 INFO L475 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2019-08-05 10:38:45,032 INFO L476 AbstractCegarLoop]: Interpolant automaton has 96 states. [2019-08-05 10:38:45,032 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2019-08-05 10:38:45,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-08-05 10:38:45,032 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:45,033 INFO L399 BasicCegarLoop]: trace histogram [94, 1, 1] [2019-08-05 10:38:45,033 INFO L418 AbstractCegarLoop]: === Iteration 95 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:45,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:45,033 INFO L82 PathProgramCache]: Analyzing trace with hash -177207054, now seen corresponding path program 94 times [2019-08-05 10:38:45,034 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:45,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 96 conjunts are in the unsatisfiable core [2019-08-05 10:38:45,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:45,113 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,167 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,199 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,211 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,223 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,236 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,263 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,277 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,292 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,307 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,326 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,345 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,364 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,383 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,403 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,428 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,452 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,475 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,499 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,524 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,574 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,599 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,629 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,659 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,727 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,757 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,788 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,821 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,853 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,888 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,958 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,993 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,032 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,068 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,144 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,183 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,222 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,263 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,303 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,348 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,536 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,643 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,769 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,815 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,863 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,012 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,064 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,113 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,166 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,226 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,282 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,339 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,398 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,515 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,577 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,631 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,695 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,811 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,878 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,002 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,069 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,135 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,201 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,269 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,335 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,404 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,477 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,545 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,619 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,694 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,762 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,916 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,992 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,070 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,146 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,228 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,388 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,477 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,562 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,642 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,725 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,810 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:49,810 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:49,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [95] total 95 [2019-08-05 10:38:49,810 INFO L454 AbstractCegarLoop]: Interpolant automaton has 97 states [2019-08-05 10:38:49,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2019-08-05 10:38:49,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2019-08-05 10:38:49,812 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 97 states. [2019-08-05 10:38:49,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:49,933 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2019-08-05 10:38:49,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2019-08-05 10:38:49,933 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 96 [2019-08-05 10:38:49,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:49,934 INFO L225 Difference]: With dead ends: 98 [2019-08-05 10:38:49,934 INFO L226 Difference]: Without dead ends: 98 [2019-08-05 10:38:49,934 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2019-08-05 10:38:49,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-08-05 10:38:49,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2019-08-05 10:38:49,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-08-05 10:38:49,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2019-08-05 10:38:49,936 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 96 [2019-08-05 10:38:49,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:49,936 INFO L475 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2019-08-05 10:38:49,936 INFO L476 AbstractCegarLoop]: Interpolant automaton has 97 states. [2019-08-05 10:38:49,936 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2019-08-05 10:38:49,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-08-05 10:38:49,936 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:49,936 INFO L399 BasicCegarLoop]: trace histogram [95, 1, 1] [2019-08-05 10:38:49,937 INFO L418 AbstractCegarLoop]: === Iteration 96 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:49,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:49,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1198451175, now seen corresponding path program 95 times [2019-08-05 10:38:49,937 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:49,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 97 conjunts are in the unsatisfiable core [2019-08-05 10:38:49,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:49,981 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,988 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,997 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,005 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,014 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,028 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,041 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,053 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,067 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,081 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,097 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,113 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,148 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,170 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,207 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,229 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,251 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,273 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,296 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,320 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,347 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,373 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,401 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,428 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,482 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,509 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,572 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,603 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,634 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,667 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,700 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,733 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,807 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,863 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,903 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,996 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,035 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,076 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,117 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,160 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,206 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,295 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,339 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,382 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,427 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,473 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,614 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,750 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,898 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,948 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,000 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,054 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,110 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,164 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,274 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,331 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,393 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,449 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,509 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,569 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,719 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,787 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,851 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,911 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,976 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,040 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,104 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,174 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,259 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,331 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,401 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,473 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,541 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,613 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,832 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,907 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,984 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,061 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,147 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,305 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,461 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,547 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 4560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:54,632 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:54,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [96] total 96 [2019-08-05 10:38:54,633 INFO L454 AbstractCegarLoop]: Interpolant automaton has 98 states [2019-08-05 10:38:54,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2019-08-05 10:38:54,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2019-08-05 10:38:54,634 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 98 states. [2019-08-05 10:38:54,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:54,790 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2019-08-05 10:38:54,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2019-08-05 10:38:54,791 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 97 [2019-08-05 10:38:54,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:54,792 INFO L225 Difference]: With dead ends: 99 [2019-08-05 10:38:54,792 INFO L226 Difference]: Without dead ends: 99 [2019-08-05 10:38:54,792 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2019-08-05 10:38:54,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-08-05 10:38:54,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-08-05 10:38:54,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-08-05 10:38:54,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2019-08-05 10:38:54,793 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 97 [2019-08-05 10:38:54,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:54,794 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2019-08-05 10:38:54,794 INFO L476 AbstractCegarLoop]: Interpolant automaton has 98 states. [2019-08-05 10:38:54,794 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2019-08-05 10:38:54,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-08-05 10:38:54,794 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:54,794 INFO L399 BasicCegarLoop]: trace histogram [96, 1, 1] [2019-08-05 10:38:54,794 INFO L418 AbstractCegarLoop]: === Iteration 97 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:54,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:54,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1502719442, now seen corresponding path program 96 times [2019-08-05 10:38:54,795 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:54,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 98 conjunts are in the unsatisfiable core [2019-08-05 10:38:54,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:54,849 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,857 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,866 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,881 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,892 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,905 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,918 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,930 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,956 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,971 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,986 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,002 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,018 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,035 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,054 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,075 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,094 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,115 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,136 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,160 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,184 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,209 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,238 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,263 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,292 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,320 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,352 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,413 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,443 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,475 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,516 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,547 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,582 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,659 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,703 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,739 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,815 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,854 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,897 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,940 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,982 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,026 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,070 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,116 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,161 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,208 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,256 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,305 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,349 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,400 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,450 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,502 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,556 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,633 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,724 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,785 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,983 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,067 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,123 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,178 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,240 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,300 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,361 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,422 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,486 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,562 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,633 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,693 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,825 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,029 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,098 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,167 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,239 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,308 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,389 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,461 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,536 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,608 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,758 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,832 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,910 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,014 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,090 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,171 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,329 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,440 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,522 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,624 INFO L134 CoverageAnalysis]: Checked inductivity of 4656 backedges. 0 proven. 4656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:38:59,624 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:59,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2019-08-05 10:38:59,624 INFO L454 AbstractCegarLoop]: Interpolant automaton has 99 states [2019-08-05 10:38:59,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2019-08-05 10:38:59,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2019-08-05 10:38:59,625 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand 99 states. [2019-08-05 10:38:59,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:59,770 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2019-08-05 10:38:59,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2019-08-05 10:38:59,770 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 98 [2019-08-05 10:38:59,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:59,771 INFO L225 Difference]: With dead ends: 100 [2019-08-05 10:38:59,771 INFO L226 Difference]: Without dead ends: 100 [2019-08-05 10:38:59,771 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2019-08-05 10:38:59,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-08-05 10:38:59,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-08-05 10:38:59,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-08-05 10:38:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2019-08-05 10:38:59,773 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 98 [2019-08-05 10:38:59,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:59,773 INFO L475 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2019-08-05 10:38:59,773 INFO L476 AbstractCegarLoop]: Interpolant automaton has 99 states. [2019-08-05 10:38:59,773 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2019-08-05 10:38:59,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-08-05 10:38:59,774 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:59,774 INFO L399 BasicCegarLoop]: trace histogram [97, 1, 1] [2019-08-05 10:38:59,774 INFO L418 AbstractCegarLoop]: === Iteration 98 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:59,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:59,774 INFO L82 PathProgramCache]: Analyzing trace with hash -660337351, now seen corresponding path program 97 times [2019-08-05 10:38:59,775 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:59,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 99 conjunts are in the unsatisfiable core [2019-08-05 10:38:59,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:59,823 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,847 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,856 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,868 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,880 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,896 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,908 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,921 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,935 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,950 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,965 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,013 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,040 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,062 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,081 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,102 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,125 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,147 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,169 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,194 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,219 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,244 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,268 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,293 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,322 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,351 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,380 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,439 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,471 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,574 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,608 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,644 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,682 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,717 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,806 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,845 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,887 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,929 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,969 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,012 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,070 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,115 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,162 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,209 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,255 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,349 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,397 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,452 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,503 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,554 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,667 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,721 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,875 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,045 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,150 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,208 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,265 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,327 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,397 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,462 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,531 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,596 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,658 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,723 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,788 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,852 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,988 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,056 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,121 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,260 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,330 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,403 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,476 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,624 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,699 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,786 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,861 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,939 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,019 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,123 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,285 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,364 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,449 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,535 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,620 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4753 backedges. 0 proven. 4753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:39:04,710 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:04,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [98] total 98 [2019-08-05 10:39:04,711 INFO L454 AbstractCegarLoop]: Interpolant automaton has 100 states [2019-08-05 10:39:04,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2019-08-05 10:39:04,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2019-08-05 10:39:04,712 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 100 states. [2019-08-05 10:39:04,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:04,855 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2019-08-05 10:39:04,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2019-08-05 10:39:04,855 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 99 [2019-08-05 10:39:04,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:04,856 INFO L225 Difference]: With dead ends: 101 [2019-08-05 10:39:04,856 INFO L226 Difference]: Without dead ends: 101 [2019-08-05 10:39:04,856 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2019-08-05 10:39:04,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-08-05 10:39:04,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-08-05 10:39:04,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-08-05 10:39:04,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2019-08-05 10:39:04,858 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 99 [2019-08-05 10:39:04,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:04,858 INFO L475 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2019-08-05 10:39:04,859 INFO L476 AbstractCegarLoop]: Interpolant automaton has 100 states. [2019-08-05 10:39:04,859 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2019-08-05 10:39:04,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-08-05 10:39:04,859 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:04,859 INFO L399 BasicCegarLoop]: trace histogram [98, 1, 1] [2019-08-05 10:39:04,859 INFO L418 AbstractCegarLoop]: === Iteration 99 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:04,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:04,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1004378802, now seen corresponding path program 98 times [2019-08-05 10:39:04,860 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:04,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 100 conjunts are in the unsatisfiable core [2019-08-05 10:39:04,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:04,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,918 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,927 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,937 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,948 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,960 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,972 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,986 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,000 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,040 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,054 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,071 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,104 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,124 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,142 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,164 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,183 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,206 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,230 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,252 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,275 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,328 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,354 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,381 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,411 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,438 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,465 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,494 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,555 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,588 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,622 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,658 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,728 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,762 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,800 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,839 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,874 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,914 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,955 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:05,996 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,043 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,085 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,130 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,195 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,239 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,284 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,327 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,377 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,444 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,492 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,543 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,646 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,696 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,746 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,798 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,880 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,010 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,083 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,248 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,308 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,368 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,427 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,490 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,552 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,629 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,694 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,757 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,820 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,883 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,947 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,016 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,094 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,160 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,229 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,298 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,438 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,510 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,587 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,661 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,734 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,985 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,060 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,141 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,219 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,298 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,381 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,459 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,553 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,633 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,721 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,812 INFO L134 CoverageAnalysis]: Checked inductivity of 4851 backedges. 0 proven. 4851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:39:09,813 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:09,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [99] total 99 [2019-08-05 10:39:09,813 INFO L454 AbstractCegarLoop]: Interpolant automaton has 101 states [2019-08-05 10:39:09,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2019-08-05 10:39:09,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2019-08-05 10:39:09,814 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand 101 states. [2019-08-05 10:39:10,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:10,086 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2019-08-05 10:39:10,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2019-08-05 10:39:10,086 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 100 [2019-08-05 10:39:10,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:10,087 INFO L225 Difference]: With dead ends: 102 [2019-08-05 10:39:10,087 INFO L226 Difference]: Without dead ends: 102 [2019-08-05 10:39:10,088 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2019-08-05 10:39:10,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-08-05 10:39:10,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-08-05 10:39:10,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-08-05 10:39:10,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2019-08-05 10:39:10,090 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 100 [2019-08-05 10:39:10,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:10,090 INFO L475 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2019-08-05 10:39:10,090 INFO L476 AbstractCegarLoop]: Interpolant automaton has 101 states. [2019-08-05 10:39:10,090 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2019-08-05 10:39:10,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-08-05 10:39:10,091 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:10,091 INFO L399 BasicCegarLoop]: trace histogram [99, 1, 1] [2019-08-05 10:39:10,091 INFO L418 AbstractCegarLoop]: === Iteration 100 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:10,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:10,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1070971993, now seen corresponding path program 99 times [2019-08-05 10:39:10,092 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:10,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 101 conjunts are in the unsatisfiable core [2019-08-05 10:39:10,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:10,135 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,146 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,164 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,173 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,183 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,194 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,207 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,220 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,233 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,263 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,278 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,334 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,353 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,373 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,395 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,416 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,440 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,464 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,488 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,512 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,595 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,623 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,651 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,685 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,714 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,746 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,776 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,810 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,840 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,876 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,949 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,046 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,126 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,180 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,222 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,264 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,307 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,352 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,397 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,439 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,485 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,533 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,644 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,740 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,790 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,842 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,895 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,949 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,128 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,233 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,332 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,391 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,445 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,581 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,639 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,698 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,823 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,958 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,027 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,103 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,170 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,238 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,305 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,372 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,442 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,515 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,626 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,693 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,767 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,916 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,988 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,062 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,161 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,239 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,318 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,390 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,469 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,551 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,634 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,726 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,809 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,975 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,063 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 4950 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:39:15,156 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:15,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [100] total 100 [2019-08-05 10:39:15,156 INFO L454 AbstractCegarLoop]: Interpolant automaton has 102 states [2019-08-05 10:39:15,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2019-08-05 10:39:15,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2019-08-05 10:39:15,157 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 102 states. [2019-08-05 10:39:15,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:15,329 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2019-08-05 10:39:15,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2019-08-05 10:39:15,329 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 101 [2019-08-05 10:39:15,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:15,330 INFO L225 Difference]: With dead ends: 103 [2019-08-05 10:39:15,330 INFO L226 Difference]: Without dead ends: 103 [2019-08-05 10:39:15,330 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2019-08-05 10:39:15,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-08-05 10:39:15,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2019-08-05 10:39:15,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-08-05 10:39:15,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2019-08-05 10:39:15,332 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 101 [2019-08-05 10:39:15,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:15,332 INFO L475 AbstractCegarLoop]: Abstraction has 103 states and 103 transitions. [2019-08-05 10:39:15,332 INFO L476 AbstractCegarLoop]: Interpolant automaton has 102 states. [2019-08-05 10:39:15,332 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2019-08-05 10:39:15,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-08-05 10:39:15,333 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:15,333 INFO L399 BasicCegarLoop]: trace histogram [100, 1, 1] [2019-08-05 10:39:15,333 INFO L418 AbstractCegarLoop]: === Iteration 101 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:15,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:15,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1159606382, now seen corresponding path program 100 times [2019-08-05 10:39:15,334 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:15,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 103 conjunts are in the unsatisfiable core [2019-08-05 10:39:15,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:19,782 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:39:19,783 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:19,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [101] total 101 [2019-08-05 10:39:19,783 INFO L454 AbstractCegarLoop]: Interpolant automaton has 103 states [2019-08-05 10:39:19,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2019-08-05 10:39:19,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=10303, Unknown=0, NotChecked=0, Total=10506 [2019-08-05 10:39:19,784 INFO L87 Difference]: Start difference. First operand 103 states and 103 transitions. Second operand 103 states. [2019-08-05 10:39:26,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:26,520 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2019-08-05 10:39:26,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2019-08-05 10:39:26,521 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 102 [2019-08-05 10:39:26,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:26,522 INFO L225 Difference]: With dead ends: 104 [2019-08-05 10:39:26,522 INFO L226 Difference]: Without dead ends: 104 [2019-08-05 10:39:26,523 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=203, Invalid=10303, Unknown=0, NotChecked=0, Total=10506 [2019-08-05 10:39:26,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-08-05 10:39:26,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-08-05 10:39:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-08-05 10:39:26,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2019-08-05 10:39:26,525 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 102 [2019-08-05 10:39:26,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:26,526 INFO L475 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2019-08-05 10:39:26,526 INFO L476 AbstractCegarLoop]: Interpolant automaton has 103 states. [2019-08-05 10:39:26,526 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2019-08-05 10:39:26,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-08-05 10:39:26,526 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:26,526 INFO L399 BasicCegarLoop]: trace histogram [101, 1, 1] [2019-08-05 10:39:26,527 INFO L418 AbstractCegarLoop]: === Iteration 102 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:26,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:26,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1588059271, now seen corresponding path program 101 times [2019-08-05 10:39:26,527 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:26,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 104 conjunts are in the unsatisfiable core [2019-08-05 10:39:26,585 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:31,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 0 proven. 5151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:39:31,153 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:31,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [102] total 102 [2019-08-05 10:39:31,153 INFO L454 AbstractCegarLoop]: Interpolant automaton has 104 states [2019-08-05 10:39:31,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2019-08-05 10:39:31,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=10507, Unknown=0, NotChecked=0, Total=10712 [2019-08-05 10:39:31,154 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 104 states. [2019-08-05 10:39:38,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:38,239 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2019-08-05 10:39:38,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2019-08-05 10:39:38,239 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 103 [2019-08-05 10:39:38,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:38,240 INFO L225 Difference]: With dead ends: 105 [2019-08-05 10:39:38,240 INFO L226 Difference]: Without dead ends: 105 [2019-08-05 10:39:38,241 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=205, Invalid=10507, Unknown=0, NotChecked=0, Total=10712 [2019-08-05 10:39:38,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-08-05 10:39:38,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-08-05 10:39:38,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-08-05 10:39:38,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2019-08-05 10:39:38,243 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 103 [2019-08-05 10:39:38,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:38,243 INFO L475 AbstractCegarLoop]: Abstraction has 105 states and 105 transitions. [2019-08-05 10:39:38,244 INFO L476 AbstractCegarLoop]: Interpolant automaton has 104 states. [2019-08-05 10:39:38,244 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2019-08-05 10:39:38,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-08-05 10:39:38,244 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:38,244 INFO L399 BasicCegarLoop]: trace histogram [102, 1, 1] [2019-08-05 10:39:38,245 INFO L418 AbstractCegarLoop]: === Iteration 103 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:38,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:38,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1985196942, now seen corresponding path program 102 times [2019-08-05 10:39:38,245 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:38,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 105 conjunts are in the unsatisfiable core [2019-08-05 10:39:38,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2019-08-05 10:39:39,619 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2019-08-05 10:39:39,620 WARN L544 AbstractCegarLoop]: Verification canceled [2019-08-05 10:39:39,623 WARN L223 ceAbstractionStarter]: Timeout [2019-08-05 10:39:39,624 INFO L202 PluginConnector]: Adding new model HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:39:39 BoogieIcfgContainer [2019-08-05 10:39:39,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:39:39,625 INFO L168 Benchmark]: Toolchain (without parser) took 241383.27 ms. Allocated memory was 141.6 MB in the beginning and 451.4 MB in the end (delta: 309.9 MB). Free memory was 111.1 MB in the beginning and 416.8 MB in the end (delta: -305.7 MB). Peak memory consumption was 326.8 MB. Max. memory is 7.1 GB. [2019-08-05 10:39:39,626 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory is still 112.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 10:39:39,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.12 ms. Allocated memory is still 141.6 MB. Free memory was 111.1 MB in the beginning and 109.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:39:39,627 INFO L168 Benchmark]: Boogie Preprocessor took 26.71 ms. Allocated memory is still 141.6 MB. Free memory was 109.0 MB in the beginning and 107.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:39:39,627 INFO L168 Benchmark]: RCFGBuilder took 369.57 ms. Allocated memory is still 141.6 MB. Free memory was 107.8 MB in the beginning and 97.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-08-05 10:39:39,628 INFO L168 Benchmark]: TraceAbstraction took 240945.11 ms. Allocated memory was 141.6 MB in the beginning and 451.4 MB in the end (delta: 309.9 MB). Free memory was 97.0 MB in the beginning and 416.8 MB in the end (delta: -319.9 MB). Peak memory consumption was 312.6 MB. Max. memory is 7.1 GB. [2019-08-05 10:39:39,635 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory is still 112.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 35.12 ms. Allocated memory is still 141.6 MB. Free memory was 111.1 MB in the beginning and 109.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.71 ms. Allocated memory is still 141.6 MB. Free memory was 109.0 MB in the beginning and 107.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 369.57 ms. Allocated memory is still 141.6 MB. Free memory was 107.8 MB in the beginning and 97.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240945.11 ms. Allocated memory was 141.6 MB in the beginning and 451.4 MB in the end (delta: 309.9 MB). Free memory was 97.0 MB in the beginning and 416.8 MB in the end (delta: -319.9 MB). Peak memory consumption was 312.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 30]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 30). Cancelled while BasicCegarLoop was analyzing trace of length 105 with TraceHistMax 102,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 59 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 error locations. TIMEOUT Result, 240.8s OverallTime, 103 OverallIterations, 102 TraceHistogramMax, 24.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 204 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 27484 SolverSat, 190 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5253 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5253 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 206.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 102 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 212.3s InterpolantComputationTime, 5355 NumberOfCodeBlocks, 5355 NumberOfCodeBlocksAsserted, 102 NumberOfCheckSat, 5253 ConstructedInterpolants, 0 QuantifiedInterpolants, 1076865 SizeOfPredicates, 0 NumberOfNonLiveVariables, 11220 ConjunctsInSsa, 5357 ConjunctsInUnsatCore, 102 InterpolantComputations, 1 PerfectInterpolantSequences, 0/176851 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown