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/Luxembourg-ArraysIntegefied.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:38:07,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:38:07,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:38:07,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:38:07,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:38:07,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:38:07,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:38:07,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:38:07,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:38:07,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:38:07,230 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:38:07,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:38:07,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:38:07,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:38:07,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:38:07,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:38:07,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:38:07,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:38:07,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:38:07,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:38:07,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:38:07,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:38:07,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:38:07,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:38:07,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:38:07,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:38:07,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:38:07,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:38:07,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:38:07,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:38:07,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:38:07,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:38:07,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:38:07,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:38:07,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:38:07,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:38:07,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:38:07,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:38:07,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:38:07,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:38:07,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:38:07,316 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:38:07,330 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:38:07,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:38:07,337 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:38:07,338 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:38:07,340 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl [2019-08-05 10:38:07,340 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl' [2019-08-05 10:38:07,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:38:07,373 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:38:07,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:38:07,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:38:07,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:38:07,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:38:07" (1/1) ... [2019-08-05 10:38:07,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:38:07" (1/1) ... [2019-08-05 10:38:07,406 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 10:38:07,407 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 10:38:07,407 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 10:38:07,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:38:07,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:38:07,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:38:07,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:38:07,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:38:07" (1/1) ... [2019-08-05 10:38:07,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:38:07" (1/1) ... [2019-08-05 10:38:07,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:38:07" (1/1) ... [2019-08-05 10:38:07,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:38:07" (1/1) ... [2019-08-05 10:38:07,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:38:07" (1/1) ... [2019-08-05 10:38:07,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:38:07" (1/1) ... [2019-08-05 10:38:07,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:38:07" (1/1) ... [2019-08-05 10:38:07,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:38:07,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:38:07,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:38:07,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:38:07,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:38:07" (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 10:38:07,502 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 10:38:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 10:38:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 10:38:07,962 INFO L275 CfgBuilder]: Using library mode [2019-08-05 10:38:07,963 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 10:38:07,964 INFO L202 PluginConnector]: Adding new model Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:38:07 BoogieIcfgContainer [2019-08-05 10:38:07,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:38:07,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:38:07,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:38:07,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:38:07,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:38:07" (1/2) ... [2019-08-05 10:38:07,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6131715e and model type Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:38:07, skipping insertion in model container [2019-08-05 10:38:07,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:38:07" (2/2) ... [2019-08-05 10:38:07,972 INFO L109 eAbstractionObserver]: Analyzing ICFG Luxembourg-ArraysIntegefied.bpl [2019-08-05 10:38:07,982 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:38:07,990 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:38:08,006 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:38:08,032 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:38:08,033 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:38:08,033 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:38:08,034 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:38:08,034 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:38:08,034 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:38:08,034 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:38:08,035 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:38:08,035 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:38:08,049 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 10:38:08,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 10:38:08,057 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:08,058 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 10:38:08,061 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:08,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:08,067 INFO L82 PathProgramCache]: Analyzing trace with hash 75054, now seen corresponding path program 1 times [2019-08-05 10:38:08,113 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:08,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 10:38:08,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:08,175 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,207 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 10:38:08,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:38:08,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 10:38:08,215 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:38:08,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:38:08,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:38:08,233 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-08-05 10:38:08,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:08,292 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-08-05 10:38:08,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:38:08,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 10:38:08,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:08,304 INFO L225 Difference]: With dead ends: 9 [2019-08-05 10:38:08,304 INFO L226 Difference]: Without dead ends: 5 [2019-08-05 10:38:08,306 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 10:38:08,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-05 10:38:08,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-05 10:38:08,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-05 10:38:08,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-08-05 10:38:08,341 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-08-05 10:38:08,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:08,342 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-08-05 10:38:08,342 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:38:08,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-08-05 10:38:08,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:38:08,343 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:08,343 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:38:08,343 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:08,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:08,344 INFO L82 PathProgramCache]: Analyzing trace with hash 2342053, now seen corresponding path program 1 times [2019-08-05 10:38:08,345 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:08,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 10:38:08,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:08,600 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:38:08,604 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,608 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,707 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 10:38:08,707 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:08,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 10:38:08,711 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:38:08,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:38:08,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:38:08,719 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2019-08-05 10:38:08,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:08,763 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2019-08-05 10:38:08,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:38:08,764 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 10:38:08,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:08,765 INFO L225 Difference]: With dead ends: 6 [2019-08-05 10:38:08,765 INFO L226 Difference]: Without dead ends: 6 [2019-08-05 10:38:08,766 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:38:08,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-08-05 10:38:08,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-08-05 10:38:08,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-05 10:38:08,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-08-05 10:38:08,768 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-08-05 10:38:08,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:08,769 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-08-05 10:38:08,769 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:38:08,769 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-08-05 10:38:08,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 10:38:08,770 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:08,770 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-08-05 10:38:08,770 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:08,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:08,771 INFO L82 PathProgramCache]: Analyzing trace with hash 72619022, now seen corresponding path program 2 times [2019-08-05 10:38:08,772 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:08,794 WARN L254 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2019-08-05 10:38:08,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:08,843 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:08,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,321 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 16 [2019-08-05 10:38:09,324 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,326 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,327 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,348 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 10:38:09,349 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:09,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-05 10:38:09,349 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 10:38:09,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 10:38:09,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:38:09,351 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 5 states. [2019-08-05 10:38:09,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:09,440 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-08-05 10:38:09,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 10:38:09,441 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-08-05 10:38:09,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:09,441 INFO L225 Difference]: With dead ends: 7 [2019-08-05 10:38:09,441 INFO L226 Difference]: Without dead ends: 7 [2019-08-05 10:38:09,442 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:38:09,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-05 10:38:09,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-08-05 10:38:09,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 10:38:09,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 10:38:09,444 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-08-05 10:38:09,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:09,445 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 10:38:09,445 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 10:38:09,445 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 10:38:09,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 10:38:09,446 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:09,446 INFO L399 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2019-08-05 10:38:09,446 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:09,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:09,447 INFO L82 PathProgramCache]: Analyzing trace with hash -2043762235, now seen corresponding path program 3 times [2019-08-05 10:38:09,448 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:09,474 WARN L254 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 9 conjunts are in the unsatisfiable core [2019-08-05 10:38:09,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:09,586 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,588 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,703 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,704 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,706 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,831 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:09,871 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 10:38:09,872 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:09,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-08-05 10:38:09,872 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-05 10:38:09,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-05 10:38:09,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-08-05 10:38:09,874 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2019-08-05 10:38:09,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:09,924 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 10:38:09,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-08-05 10:38:09,929 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-08-05 10:38:09,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:09,929 INFO L225 Difference]: With dead ends: 8 [2019-08-05 10:38:09,930 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 10:38:09,930 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-08-05 10:38:09,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 10:38:09,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-08-05 10:38:09,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-08-05 10:38:09,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-08-05 10:38:09,932 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-08-05 10:38:09,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:09,933 INFO L475 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-08-05 10:38:09,933 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-05 10:38:09,933 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-08-05 10:38:09,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-08-05 10:38:09,933 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:09,933 INFO L399 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2019-08-05 10:38:09,934 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:09,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:09,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1067895534, now seen corresponding path program 4 times [2019-08-05 10:38:09,935 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:09,957 WARN L254 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 11 conjunts are in the unsatisfiable core [2019-08-05 10:38:09,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:10,046 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,359 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 16 [2019-08-05 10:38:10,361 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,462 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,463 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,626 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 17 [2019-08-05 10:38:10,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,630 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 10:38:10,677 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 10:38:10,677 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:10,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-08-05 10:38:10,678 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-05 10:38:10,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-05 10:38:10,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-08-05 10:38:10,679 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2019-08-05 10:38:10,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:10,748 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-08-05 10:38:10,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 10:38:10,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-08-05 10:38:10,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:10,749 INFO L225 Difference]: With dead ends: 9 [2019-08-05 10:38:10,749 INFO L226 Difference]: Without dead ends: 9 [2019-08-05 10:38:10,750 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-08-05 10:38:10,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-08-05 10:38:10,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-08-05 10:38:10,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-05 10:38:10,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-05 10:38:10,752 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-08-05 10:38:10,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:10,753 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-05 10:38:10,753 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-05 10:38:10,753 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-05 10:38:10,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-05 10:38:10,754 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:10,754 INFO L399 BasicCegarLoop]: trace histogram [5, 1, 1, 1] [2019-08-05 10:38:10,754 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:10,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:10,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1254961435, now seen corresponding path program 5 times [2019-08-05 10:38:10,755 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:10,782 WARN L254 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 13 conjunts are in the unsatisfiable core [2019-08-05 10:38:10,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:10,821 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,822 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:10,980 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 16 [2019-08-05 10:38:10,983 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,049 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,185 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,186 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,187 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,263 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 10:38:11,263 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:11,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-08-05 10:38:11,264 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-08-05 10:38:11,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-08-05 10:38:11,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-08-05 10:38:11,265 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 8 states. [2019-08-05 10:38:11,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:11,331 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-08-05 10:38:11,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-08-05 10:38:11,332 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2019-08-05 10:38:11,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:11,332 INFO L225 Difference]: With dead ends: 10 [2019-08-05 10:38:11,332 INFO L226 Difference]: Without dead ends: 10 [2019-08-05 10:38:11,333 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-08-05 10:38:11,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-08-05 10:38:11,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-08-05 10:38:11,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-08-05 10:38:11,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-08-05 10:38:11,336 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-08-05 10:38:11,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:11,336 INFO L475 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-08-05 10:38:11,336 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-08-05 10:38:11,336 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-08-05 10:38:11,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-08-05 10:38:11,337 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:11,337 INFO L399 BasicCegarLoop]: trace histogram [6, 1, 1, 1] [2019-08-05 10:38:11,337 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:11,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:11,337 INFO L82 PathProgramCache]: Analyzing trace with hash -249083442, now seen corresponding path program 6 times [2019-08-05 10:38:11,338 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:11,363 WARN L254 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 15 conjunts are in the unsatisfiable core [2019-08-05 10:38:11,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:11,418 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,420 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,534 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,535 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,536 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,617 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,679 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,756 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,757 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,820 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,822 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,823 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:11,853 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 10:38:11,854 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:11,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-08-05 10:38:11,854 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-08-05 10:38:11,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-08-05 10:38:11,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-08-05 10:38:11,855 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2019-08-05 10:38:11,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:11,945 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-08-05 10:38:11,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-08-05 10:38:11,947 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2019-08-05 10:38:11,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:11,947 INFO L225 Difference]: With dead ends: 11 [2019-08-05 10:38:11,947 INFO L226 Difference]: Without dead ends: 11 [2019-08-05 10:38:11,948 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-08-05 10:38:11,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-08-05 10:38:11,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-08-05 10:38:11,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-08-05 10:38:11,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-08-05 10:38:11,950 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2019-08-05 10:38:11,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:11,951 INFO L475 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-08-05 10:38:11,951 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-08-05 10:38:11,951 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-08-05 10:38:11,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-08-05 10:38:11,952 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:11,952 INFO L399 BasicCegarLoop]: trace histogram [7, 1, 1, 1] [2019-08-05 10:38:11,952 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:11,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:11,953 INFO L82 PathProgramCache]: Analyzing trace with hash 868363269, now seen corresponding path program 7 times [2019-08-05 10:38:11,954 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:11,989 WARN L254 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 17 conjunts are in the unsatisfiable core [2019-08-05 10:38:11,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:12,055 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,481 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 16 [2019-08-05 10:38:12,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,485 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,581 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,581 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,583 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,650 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,747 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,748 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,881 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 16 [2019-08-05 10:38:12,883 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,960 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,962 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,962 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:12,990 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 10:38:12,990 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:12,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-08-05 10:38:12,991 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-08-05 10:38:12,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-08-05 10:38:12,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-08-05 10:38:12,992 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2019-08-05 10:38:13,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:13,090 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-08-05 10:38:13,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-08-05 10:38:13,091 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2019-08-05 10:38:13,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:13,091 INFO L225 Difference]: With dead ends: 12 [2019-08-05 10:38:13,092 INFO L226 Difference]: Without dead ends: 12 [2019-08-05 10:38:13,092 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-08-05 10:38:13,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-08-05 10:38:13,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-08-05 10:38:13,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-08-05 10:38:13,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-08-05 10:38:13,095 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-08-05 10:38:13,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:13,095 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-08-05 10:38:13,095 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-08-05 10:38:13,095 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-08-05 10:38:13,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-08-05 10:38:13,095 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:13,096 INFO L399 BasicCegarLoop]: trace histogram [8, 1, 1, 1] [2019-08-05 10:38:13,096 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:13,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:13,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1149472942, now seen corresponding path program 8 times [2019-08-05 10:38:13,097 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:13,121 WARN L254 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 19 conjunts are in the unsatisfiable core [2019-08-05 10:38:13,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:13,184 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,391 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 16 [2019-08-05 10:38:13,393 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,450 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,452 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,531 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,596 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,597 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,652 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,727 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,728 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,728 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,791 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,792 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,793 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:13,808 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 10:38:13,809 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:13,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2019-08-05 10:38:13,809 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-08-05 10:38:13,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-08-05 10:38:13,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-08-05 10:38:13,810 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 11 states. [2019-08-05 10:38:13,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:13,945 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-08-05 10:38:13,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-08-05 10:38:13,946 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 11 [2019-08-05 10:38:13,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:13,947 INFO L225 Difference]: With dead ends: 13 [2019-08-05 10:38:13,947 INFO L226 Difference]: Without dead ends: 13 [2019-08-05 10:38:13,948 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-08-05 10:38:13,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-08-05 10:38:13,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-08-05 10:38:13,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-08-05 10:38:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-08-05 10:38:13,951 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-08-05 10:38:13,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:13,951 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-08-05 10:38:13,951 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-08-05 10:38:13,951 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-08-05 10:38:13,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-08-05 10:38:13,952 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:13,952 INFO L399 BasicCegarLoop]: trace histogram [9, 1, 1, 1] [2019-08-05 10:38:13,952 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:13,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:13,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1273938213, now seen corresponding path program 9 times [2019-08-05 10:38:13,954 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:13,991 WARN L254 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 21 conjunts are in the unsatisfiable core [2019-08-05 10:38:13,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:14,038 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,118 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,119 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,233 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,288 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,288 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,290 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,345 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,538 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2019-08-05 10:38:14,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,625 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,725 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 10:38:14,813 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 10:38:14,814 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:14,841 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 10:38:14,842 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:14,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2019-08-05 10:38:14,843 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-08-05 10:38:14,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-08-05 10:38:14,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-08-05 10:38:14,844 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 12 states. [2019-08-05 10:38:14,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:14,971 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-08-05 10:38:14,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-08-05 10:38:14,972 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 12 [2019-08-05 10:38:14,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:14,973 INFO L225 Difference]: With dead ends: 14 [2019-08-05 10:38:14,973 INFO L226 Difference]: Without dead ends: 14 [2019-08-05 10:38:14,974 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-08-05 10:38:14,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-08-05 10:38:14,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-08-05 10:38:14,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-08-05 10:38:14,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-08-05 10:38:14,978 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2019-08-05 10:38:14,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:14,978 INFO L475 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-08-05 10:38:14,978 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-08-05 10:38:14,978 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-08-05 10:38:14,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-08-05 10:38:14,979 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:14,979 INFO L399 BasicCegarLoop]: trace histogram [10, 1, 1, 1] [2019-08-05 10:38:14,979 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:14,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:14,980 INFO L82 PathProgramCache]: Analyzing trace with hash 837394318, now seen corresponding path program 10 times [2019-08-05 10:38:14,980 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:15,005 WARN L254 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 23 conjunts are in the unsatisfiable core [2019-08-05 10:38:15,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:15,208 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:38:15,209 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,210 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,342 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,388 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,389 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,454 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,531 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,587 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,587 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,656 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,657 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,874 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 17 [2019-08-05 10:38:15,875 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,875 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,877 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:15,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,103 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,104 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,126 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 10:38:16,126 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:16,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2019-08-05 10:38:16,127 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-08-05 10:38:16,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-08-05 10:38:16,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-08-05 10:38:16,128 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 13 states. [2019-08-05 10:38:16,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:16,283 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-08-05 10:38:16,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-08-05 10:38:16,283 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2019-08-05 10:38:16,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:16,284 INFO L225 Difference]: With dead ends: 15 [2019-08-05 10:38:16,284 INFO L226 Difference]: Without dead ends: 15 [2019-08-05 10:38:16,285 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-08-05 10:38:16,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-08-05 10:38:16,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-08-05 10:38:16,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-08-05 10:38:16,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-08-05 10:38:16,288 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2019-08-05 10:38:16,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:16,288 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-08-05 10:38:16,289 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-08-05 10:38:16,289 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-08-05 10:38:16,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-08-05 10:38:16,289 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:16,289 INFO L399 BasicCegarLoop]: trace histogram [11, 1, 1, 1] [2019-08-05 10:38:16,290 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:16,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:16,290 INFO L82 PathProgramCache]: Analyzing trace with hash 189435461, now seen corresponding path program 11 times [2019-08-05 10:38:16,291 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:16,314 WARN L254 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 25 conjunts are in the unsatisfiable core [2019-08-05 10:38:16,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:16,356 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,357 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,396 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,397 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,398 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,459 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,520 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,521 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,603 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,603 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,670 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,671 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,671 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,739 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,806 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,863 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,864 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:16,865 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,260 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 16 [2019-08-05 10:38:17,262 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,263 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,417 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 17 [2019-08-05 10:38:17,419 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,420 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,438 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 10:38:17,438 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:17,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-08-05 10:38:17,439 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-08-05 10:38:17,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-08-05 10:38:17,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2019-08-05 10:38:17,440 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 14 states. [2019-08-05 10:38:17,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:17,623 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-08-05 10:38:17,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-08-05 10:38:17,627 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 14 [2019-08-05 10:38:17,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:17,628 INFO L225 Difference]: With dead ends: 16 [2019-08-05 10:38:17,628 INFO L226 Difference]: Without dead ends: 16 [2019-08-05 10:38:17,628 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2019-08-05 10:38:17,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-08-05 10:38:17,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-08-05 10:38:17,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-08-05 10:38:17,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-08-05 10:38:17,631 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2019-08-05 10:38:17,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:17,631 INFO L475 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-08-05 10:38:17,631 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-08-05 10:38:17,631 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-08-05 10:38:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-08-05 10:38:17,632 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:17,632 INFO L399 BasicCegarLoop]: trace histogram [12, 1, 1, 1] [2019-08-05 10:38:17,632 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:17,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:17,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1577547374, now seen corresponding path program 12 times [2019-08-05 10:38:17,633 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:17,657 WARN L254 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 27 conjunts are in the unsatisfiable core [2019-08-05 10:38:17,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:17,718 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,719 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,883 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 15 [2019-08-05 10:38:17,885 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 10:38:17,935 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,991 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,992 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:17,993 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:18,855 WARN L188 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 16 [2019-08-05 10:38:18,856 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,366 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2019-08-05 10:38:19,368 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,513 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2019-08-05 10:38:19,515 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,515 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,516 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,659 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,660 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,661 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,714 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,715 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,716 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,807 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,807 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,914 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,915 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,979 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,980 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:19,980 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,000 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 10:38:20,001 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:20,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2019-08-05 10:38:20,001 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-08-05 10:38:20,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-08-05 10:38:20,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2019-08-05 10:38:20,002 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 15 states. [2019-08-05 10:38:20,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:20,315 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-08-05 10:38:20,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-08-05 10:38:20,315 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 15 [2019-08-05 10:38:20,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:20,316 INFO L225 Difference]: With dead ends: 17 [2019-08-05 10:38:20,316 INFO L226 Difference]: Without dead ends: 17 [2019-08-05 10:38:20,316 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2019-08-05 10:38:20,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-08-05 10:38:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-08-05 10:38:20,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-08-05 10:38:20,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-08-05 10:38:20,319 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2019-08-05 10:38:20,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:20,319 INFO L475 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-08-05 10:38:20,319 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-08-05 10:38:20,319 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-08-05 10:38:20,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-08-05 10:38:20,320 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:20,320 INFO L399 BasicCegarLoop]: trace histogram [13, 1, 1, 1] [2019-08-05 10:38:20,320 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:20,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:20,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1659343717, now seen corresponding path program 13 times [2019-08-05 10:38:20,321 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:20,344 WARN L254 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 29 conjunts are in the unsatisfiable core [2019-08-05 10:38:20,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:20,417 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,477 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,477 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,478 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,547 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,548 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,606 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,674 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,674 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,748 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,868 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2019-08-05 10:38:20,869 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,870 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,870 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:20,968 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,067 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,184 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,184 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,311 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,311 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,388 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,388 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 10:38:21,453 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,454 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,472 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 10:38:21,473 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:21,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2019-08-05 10:38:21,473 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-08-05 10:38:21,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-08-05 10:38:21,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-08-05 10:38:21,474 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 16 states. [2019-08-05 10:38:21,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:21,693 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-08-05 10:38:21,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-08-05 10:38:21,693 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 16 [2019-08-05 10:38:21,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:21,694 INFO L225 Difference]: With dead ends: 18 [2019-08-05 10:38:21,694 INFO L226 Difference]: Without dead ends: 18 [2019-08-05 10:38:21,695 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-08-05 10:38:21,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-08-05 10:38:21,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-08-05 10:38:21,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-08-05 10:38:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-08-05 10:38:21,698 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2019-08-05 10:38:21,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:21,698 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-08-05 10:38:21,698 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-08-05 10:38:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-08-05 10:38:21,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-08-05 10:38:21,699 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:21,699 INFO L399 BasicCegarLoop]: trace histogram [14, 1, 1, 1] [2019-08-05 10:38:21,699 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:21,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:21,700 INFO L82 PathProgramCache]: Analyzing trace with hash -99936946, now seen corresponding path program 14 times [2019-08-05 10:38:21,700 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:21,721 WARN L254 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 31 conjunts are in the unsatisfiable core [2019-08-05 10:38:21,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:21,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,782 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,872 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,873 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,874 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,924 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,925 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,980 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,980 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:21,981 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,032 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,097 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,153 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,219 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,300 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,389 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,390 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,391 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,467 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,468 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,469 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,530 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,601 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,602 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,602 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,638 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 10:38:22,639 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:22,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2019-08-05 10:38:22,640 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-08-05 10:38:22,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-08-05 10:38:22,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2019-08-05 10:38:22,641 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 17 states. [2019-08-05 10:38:22,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:22,870 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-08-05 10:38:22,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-08-05 10:38:22,870 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 17 [2019-08-05 10:38:22,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:22,871 INFO L225 Difference]: With dead ends: 19 [2019-08-05 10:38:22,871 INFO L226 Difference]: Without dead ends: 19 [2019-08-05 10:38:22,872 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2019-08-05 10:38:22,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-08-05 10:38:22,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-08-05 10:38:22,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-08-05 10:38:22,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-08-05 10:38:22,875 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2019-08-05 10:38:22,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:22,876 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-08-05 10:38:22,876 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-08-05 10:38:22,876 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-08-05 10:38:22,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-08-05 10:38:22,876 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:22,876 INFO L399 BasicCegarLoop]: trace histogram [15, 1, 1, 1] [2019-08-05 10:38:22,877 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:22,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:22,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1196937349, now seen corresponding path program 15 times [2019-08-05 10:38:22,877 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:22,899 WARN L254 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 33 conjunts are in the unsatisfiable core [2019-08-05 10:38:22,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:22,960 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:22,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,019 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,020 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,114 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,115 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,190 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,191 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,192 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,250 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,314 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,315 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,408 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,409 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,467 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,467 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,519 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,584 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 10:38:23,586 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,677 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,677 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,847 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 17 [2019-08-05 10:38:23,848 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,848 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:23,993 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,089 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,090 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,090 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,113 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 10:38:24,113 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:24,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2019-08-05 10:38:24,114 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-08-05 10:38:24,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-08-05 10:38:24,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-08-05 10:38:24,115 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 18 states. [2019-08-05 10:38:24,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:24,363 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-08-05 10:38:24,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-08-05 10:38:24,370 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2019-08-05 10:38:24,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:24,371 INFO L225 Difference]: With dead ends: 20 [2019-08-05 10:38:24,371 INFO L226 Difference]: Without dead ends: 20 [2019-08-05 10:38:24,372 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-08-05 10:38:24,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-08-05 10:38:24,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-08-05 10:38:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-08-05 10:38:24,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-08-05 10:38:24,374 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2019-08-05 10:38:24,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:24,374 INFO L475 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-08-05 10:38:24,374 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-08-05 10:38:24,374 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-08-05 10:38:24,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-08-05 10:38:24,375 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:24,375 INFO L399 BasicCegarLoop]: trace histogram [16, 1, 1, 1] [2019-08-05 10:38:24,375 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:24,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:24,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1549632466, now seen corresponding path program 16 times [2019-08-05 10:38:24,376 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:24,397 WARN L254 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 35 conjunts are in the unsatisfiable core [2019-08-05 10:38:24,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:24,467 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,468 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,508 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,620 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,702 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,702 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,754 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,808 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,809 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,810 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,869 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,870 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,928 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,929 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:24,986 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,053 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,054 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,128 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,129 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,192 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,264 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,335 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,335 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,336 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,422 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,422 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:25,444 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 10:38:25,445 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:25,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2019-08-05 10:38:25,445 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-08-05 10:38:25,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-08-05 10:38:25,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2019-08-05 10:38:25,446 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 19 states. [2019-08-05 10:38:25,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:25,761 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-08-05 10:38:25,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-08-05 10:38:25,762 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 19 [2019-08-05 10:38:25,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:25,763 INFO L225 Difference]: With dead ends: 21 [2019-08-05 10:38:25,763 INFO L226 Difference]: Without dead ends: 21 [2019-08-05 10:38:25,764 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2019-08-05 10:38:25,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-08-05 10:38:25,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-08-05 10:38:25,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-08-05 10:38:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-08-05 10:38:25,767 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 19 [2019-08-05 10:38:25,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:25,767 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2019-08-05 10:38:25,767 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-08-05 10:38:25,767 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-08-05 10:38:25,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-08-05 10:38:25,767 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:25,768 INFO L399 BasicCegarLoop]: trace histogram [17, 1, 1, 1] [2019-08-05 10:38:25,768 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:25,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:25,768 INFO L82 PathProgramCache]: Analyzing trace with hash -793950811, now seen corresponding path program 17 times [2019-08-05 10:38:25,769 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:25,804 WARN L254 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 37 conjunts are in the unsatisfiable core [2019-08-05 10:38:25,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:26,008 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:38:26,009 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,094 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,137 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,138 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,138 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,259 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,260 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,261 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,351 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,419 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,482 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,482 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,552 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,553 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,699 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,769 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,770 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,771 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,858 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,859 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,957 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,958 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:26,959 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,037 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,037 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,038 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,106 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,106 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,107 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,226 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,254 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 10:38:27,255 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:27,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2019-08-05 10:38:27,255 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-08-05 10:38:27,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-08-05 10:38:27,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-08-05 10:38:27,256 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 20 states. [2019-08-05 10:38:27,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:27,614 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-08-05 10:38:27,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-08-05 10:38:27,615 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 20 [2019-08-05 10:38:27,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:27,616 INFO L225 Difference]: With dead ends: 22 [2019-08-05 10:38:27,616 INFO L226 Difference]: Without dead ends: 22 [2019-08-05 10:38:27,617 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-08-05 10:38:27,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-08-05 10:38:27,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-08-05 10:38:27,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-08-05 10:38:27,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-08-05 10:38:27,621 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 20 [2019-08-05 10:38:27,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:27,621 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2019-08-05 10:38:27,621 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-08-05 10:38:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-08-05 10:38:27,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-08-05 10:38:27,622 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:27,622 INFO L399 BasicCegarLoop]: trace histogram [18, 1, 1, 1] [2019-08-05 10:38:27,622 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:27,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:27,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1157344014, now seen corresponding path program 18 times [2019-08-05 10:38:27,623 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:27,645 WARN L254 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 39 conjunts are in the unsatisfiable core [2019-08-05 10:38:27,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:27,745 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,745 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,806 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,807 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,866 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,932 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:27,933 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,000 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,089 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,089 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,090 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,143 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,374 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,427 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,427 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,428 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,487 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,488 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,489 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,629 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,693 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,759 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,760 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,834 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,835 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,835 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,900 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:28,901 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,126 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,127 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,216 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,307 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,333 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 10:38:29,334 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:29,334 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2019-08-05 10:38:29,334 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-08-05 10:38:29,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-08-05 10:38:29,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2019-08-05 10:38:29,335 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 21 states. [2019-08-05 10:38:29,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:29,711 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-08-05 10:38:29,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-08-05 10:38:29,714 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 21 [2019-08-05 10:38:29,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:29,715 INFO L225 Difference]: With dead ends: 23 [2019-08-05 10:38:29,715 INFO L226 Difference]: Without dead ends: 23 [2019-08-05 10:38:29,715 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2019-08-05 10:38:29,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-08-05 10:38:29,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-08-05 10:38:29,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-08-05 10:38:29,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2019-08-05 10:38:29,718 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 21 [2019-08-05 10:38:29,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:29,718 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2019-08-05 10:38:29,718 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-08-05 10:38:29,718 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-08-05 10:38:29,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-08-05 10:38:29,719 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:29,719 INFO L399 BasicCegarLoop]: trace histogram [19, 1, 1, 1] [2019-08-05 10:38:29,719 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:29,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:29,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1517941445, now seen corresponding path program 19 times [2019-08-05 10:38:29,720 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:29,743 WARN L254 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 41 conjunts are in the unsatisfiable core [2019-08-05 10:38:29,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:29,917 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:38:29,918 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:29,918 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,030 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,074 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,075 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,148 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,149 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,150 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,208 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,209 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,210 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,267 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,267 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,268 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,325 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,326 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,409 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,459 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,522 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,581 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,649 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,649 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,650 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,714 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,714 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,716 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,777 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,849 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,921 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:30,995 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,161 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,295 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,295 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,296 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:31,385 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 10:38:31,386 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:31,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2019-08-05 10:38:31,386 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-08-05 10:38:31,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-08-05 10:38:31,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2019-08-05 10:38:31,387 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 22 states. [2019-08-05 10:38:31,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:31,819 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-08-05 10:38:31,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-08-05 10:38:31,820 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 22 [2019-08-05 10:38:31,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:31,820 INFO L225 Difference]: With dead ends: 24 [2019-08-05 10:38:31,820 INFO L226 Difference]: Without dead ends: 24 [2019-08-05 10:38:31,821 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2019-08-05 10:38:31,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-08-05 10:38:31,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-08-05 10:38:31,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-08-05 10:38:31,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-08-05 10:38:31,824 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2019-08-05 10:38:31,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:31,824 INFO L475 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-08-05 10:38:31,824 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-08-05 10:38:31,824 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-08-05 10:38:31,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-08-05 10:38:31,825 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:31,825 INFO L399 BasicCegarLoop]: trace histogram [20, 1, 1, 1] [2019-08-05 10:38:31,825 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:31,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:31,825 INFO L82 PathProgramCache]: Analyzing trace with hash -188440082, now seen corresponding path program 20 times [2019-08-05 10:38:31,826 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:31,847 WARN L254 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 43 conjunts are in the unsatisfiable core [2019-08-05 10:38:31,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:32,057 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:38:32,058 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,231 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 16 [2019-08-05 10:38:32,232 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,276 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,333 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,334 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,385 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,444 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,445 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,446 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,499 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,500 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,618 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,695 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,762 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,762 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,763 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,885 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,960 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:32,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,026 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,153 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,153 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,220 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,221 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,221 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,286 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,362 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,362 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,452 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,453 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,453 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:33,482 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 10:38:33,483 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:33,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2019-08-05 10:38:33,483 INFO L454 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-08-05 10:38:33,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-08-05 10:38:33,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2019-08-05 10:38:33,484 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 23 states. [2019-08-05 10:38:33,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:33,900 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-08-05 10:38:33,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-08-05 10:38:33,901 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 23 [2019-08-05 10:38:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:33,902 INFO L225 Difference]: With dead ends: 25 [2019-08-05 10:38:33,902 INFO L226 Difference]: Without dead ends: 25 [2019-08-05 10:38:33,903 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2019-08-05 10:38:33,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-08-05 10:38:33,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-08-05 10:38:33,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-08-05 10:38:33,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2019-08-05 10:38:33,906 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2019-08-05 10:38:33,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:33,906 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2019-08-05 10:38:33,906 INFO L476 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-08-05 10:38:33,906 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-08-05 10:38:33,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-08-05 10:38:33,907 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:33,907 INFO L399 BasicCegarLoop]: trace histogram [21, 1, 1, 1] [2019-08-05 10:38:33,907 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:33,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:33,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1546659867, now seen corresponding path program 21 times [2019-08-05 10:38:33,908 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:33,931 WARN L254 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 45 conjunts are in the unsatisfiable core [2019-08-05 10:38:33,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:34,147 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:38:34,148 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,213 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,256 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,260 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,314 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,362 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,363 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,465 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,467 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,632 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,633 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,634 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,690 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,750 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,817 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,818 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,819 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,889 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:34,966 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,023 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,024 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,149 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,223 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,224 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,295 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,295 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,296 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,364 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,364 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,453 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,453 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,529 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,608 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,689 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,689 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,690 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:35,716 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 10:38:35,716 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:35,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2019-08-05 10:38:35,717 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-08-05 10:38:35,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-08-05 10:38:35,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2019-08-05 10:38:35,717 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 24 states. [2019-08-05 10:38:36,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:36,304 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-08-05 10:38:36,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-08-05 10:38:36,306 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 24 [2019-08-05 10:38:36,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:36,307 INFO L225 Difference]: With dead ends: 26 [2019-08-05 10:38:36,307 INFO L226 Difference]: Without dead ends: 26 [2019-08-05 10:38:36,307 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2019-08-05 10:38:36,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-08-05 10:38:36,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-08-05 10:38:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-08-05 10:38:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-08-05 10:38:36,310 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 24 [2019-08-05 10:38:36,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:36,310 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-08-05 10:38:36,310 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-08-05 10:38:36,310 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-08-05 10:38:36,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-08-05 10:38:36,311 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:36,311 INFO L399 BasicCegarLoop]: trace histogram [22, 1, 1, 1] [2019-08-05 10:38:36,311 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:36,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:36,312 INFO L82 PathProgramCache]: Analyzing trace with hash -701800242, now seen corresponding path program 22 times [2019-08-05 10:38:36,312 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:36,336 WARN L254 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 47 conjunts are in the unsatisfiable core [2019-08-05 10:38:36,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:36,537 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:38:36,539 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:36,539 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,061 WARN L188 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 16 [2019-08-05 10:38:37,062 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,062 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,132 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,240 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,241 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,305 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,358 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,359 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,453 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,505 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,568 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,689 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,690 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,690 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,766 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,767 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,831 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,916 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,984 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:37,984 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,054 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,055 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,123 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,124 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,124 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,194 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,194 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,195 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,266 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,267 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,344 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,345 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,345 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,453 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,453 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,454 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:38,484 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 10:38:38,485 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:38,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2019-08-05 10:38:38,485 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-08-05 10:38:38,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-08-05 10:38:38,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2019-08-05 10:38:38,486 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 25 states. [2019-08-05 10:38:39,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:39,327 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-08-05 10:38:39,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-08-05 10:38:39,327 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2019-08-05 10:38:39,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:39,328 INFO L225 Difference]: With dead ends: 27 [2019-08-05 10:38:39,328 INFO L226 Difference]: Without dead ends: 27 [2019-08-05 10:38:39,329 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2019-08-05 10:38:39,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-08-05 10:38:39,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-08-05 10:38:39,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-08-05 10:38:39,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2019-08-05 10:38:39,331 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2019-08-05 10:38:39,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:39,332 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2019-08-05 10:38:39,332 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-08-05 10:38:39,332 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-08-05 10:38:39,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-08-05 10:38:39,332 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:39,333 INFO L399 BasicCegarLoop]: trace histogram [23, 1, 1, 1] [2019-08-05 10:38:39,333 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:39,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:39,333 INFO L82 PathProgramCache]: Analyzing trace with hash -280955643, now seen corresponding path program 23 times [2019-08-05 10:38:39,334 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:39,358 WARN L254 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 49 conjunts are in the unsatisfiable core [2019-08-05 10:38:39,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:39,516 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:38:39,517 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,517 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,557 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,597 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,598 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,598 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,646 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,647 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,648 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,696 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,696 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,760 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,958 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:39,959 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,058 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,059 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,114 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,250 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,340 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,340 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,404 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,405 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,406 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,468 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,541 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,617 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,770 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,851 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,851 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,852 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,929 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,929 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,930 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:40,999 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,000 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,091 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,092 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,093 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,125 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 10:38:41,125 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:41,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2019-08-05 10:38:41,125 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-08-05 10:38:41,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-08-05 10:38:41,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-08-05 10:38:41,126 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 26 states. [2019-08-05 10:38:41,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:41,881 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-08-05 10:38:41,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-08-05 10:38:41,881 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 26 [2019-08-05 10:38:41,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:41,882 INFO L225 Difference]: With dead ends: 28 [2019-08-05 10:38:41,882 INFO L226 Difference]: Without dead ends: 28 [2019-08-05 10:38:41,883 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-08-05 10:38:41,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-08-05 10:38:41,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-08-05 10:38:41,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-08-05 10:38:41,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2019-08-05 10:38:41,886 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2019-08-05 10:38:41,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:41,887 INFO L475 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2019-08-05 10:38:41,887 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-08-05 10:38:41,887 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2019-08-05 10:38:41,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-08-05 10:38:41,888 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:41,888 INFO L399 BasicCegarLoop]: trace histogram [24, 1, 1, 1] [2019-08-05 10:38:41,888 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:41,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:41,888 INFO L82 PathProgramCache]: Analyzing trace with hash -119674962, now seen corresponding path program 24 times [2019-08-05 10:38:41,889 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:41,912 WARN L254 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 51 conjunts are in the unsatisfiable core [2019-08-05 10:38:41,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:41,952 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,953 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,992 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,992 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:41,993 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,042 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,043 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,044 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,094 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,095 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,150 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,150 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,276 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,277 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,278 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,328 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,329 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,400 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,470 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,471 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,541 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,541 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,610 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,611 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,703 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,704 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,857 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,857 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,929 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,930 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:42,930 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,001 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,077 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,078 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,078 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,150 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,151 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,152 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,222 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,224 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,336 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,337 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,338 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,413 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,413 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,414 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,508 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,508 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,643 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,644 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,645 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:43,676 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 10:38:43,676 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:43,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2019-08-05 10:38:43,677 INFO L454 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-08-05 10:38:43,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-08-05 10:38:43,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2019-08-05 10:38:43,678 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 27 states. [2019-08-05 10:38:44,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:44,251 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-08-05 10:38:44,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-08-05 10:38:44,251 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 27 [2019-08-05 10:38:44,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:44,252 INFO L225 Difference]: With dead ends: 29 [2019-08-05 10:38:44,252 INFO L226 Difference]: Without dead ends: 29 [2019-08-05 10:38:44,253 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2019-08-05 10:38:44,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-08-05 10:38:44,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-08-05 10:38:44,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-08-05 10:38:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2019-08-05 10:38:44,256 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 27 [2019-08-05 10:38:44,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:44,256 INFO L475 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2019-08-05 10:38:44,256 INFO L476 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-08-05 10:38:44,256 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-08-05 10:38:44,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-08-05 10:38:44,257 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:44,257 INFO L399 BasicCegarLoop]: trace histogram [25, 1, 1, 1] [2019-08-05 10:38:44,257 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:44,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:44,258 INFO L82 PathProgramCache]: Analyzing trace with hash 585058853, now seen corresponding path program 25 times [2019-08-05 10:38:44,258 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:44,283 WARN L254 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 53 conjunts are in the unsatisfiable core [2019-08-05 10:38:44,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:44,359 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,359 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,398 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,398 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,399 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,447 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,447 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,513 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,513 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,585 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,586 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,650 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,713 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,713 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,714 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,770 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,770 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,771 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,839 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,906 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,907 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,979 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,979 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:44,980 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,038 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,095 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,166 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 10:38:45,167 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 10:38:45,236 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,237 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,298 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,298 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,368 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,470 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,470 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,555 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,555 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,733 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,734 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,822 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,904 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,904 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,983 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,983 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:45,984 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,063 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,063 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,064 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:46,099 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 10:38:46,099 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:46,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2019-08-05 10:38:46,100 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-08-05 10:38:46,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-08-05 10:38:46,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-08-05 10:38:46,101 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 28 states. [2019-08-05 10:38:46,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:46,778 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-08-05 10:38:46,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-08-05 10:38:46,778 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 28 [2019-08-05 10:38:46,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:46,779 INFO L225 Difference]: With dead ends: 30 [2019-08-05 10:38:46,779 INFO L226 Difference]: Without dead ends: 30 [2019-08-05 10:38:46,780 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-08-05 10:38:46,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-08-05 10:38:46,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-08-05 10:38:46,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-08-05 10:38:46,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2019-08-05 10:38:46,782 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 28 [2019-08-05 10:38:46,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:46,782 INFO L475 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2019-08-05 10:38:46,782 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-08-05 10:38:46,783 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2019-08-05 10:38:46,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-08-05 10:38:46,783 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:46,783 INFO L399 BasicCegarLoop]: trace histogram [26, 1, 1, 1] [2019-08-05 10:38:46,783 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:46,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:46,784 INFO L82 PathProgramCache]: Analyzing trace with hash 956970638, now seen corresponding path program 26 times [2019-08-05 10:38:46,784 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:46,809 WARN L254 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 55 conjunts are in the unsatisfiable core [2019-08-05 10:38:46,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:47,014 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:38:47,015 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,016 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,119 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,120 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,120 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,167 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,227 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,228 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,389 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,390 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 10:38:47,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,512 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,588 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,588 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,644 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,645 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,645 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,702 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,773 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,774 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,831 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:47,962 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,089 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,090 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,171 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,172 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,254 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,331 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,331 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,332 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,403 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,482 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,568 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,650 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,651 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,728 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,814 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,815 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,903 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,903 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,904 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:48,938 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 10:38:48,939 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:48,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2019-08-05 10:38:48,939 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-08-05 10:38:48,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-08-05 10:38:48,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2019-08-05 10:38:48,940 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 29 states. [2019-08-05 10:38:49,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:49,629 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2019-08-05 10:38:49,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-08-05 10:38:49,629 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 29 [2019-08-05 10:38:49,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:49,630 INFO L225 Difference]: With dead ends: 31 [2019-08-05 10:38:49,630 INFO L226 Difference]: Without dead ends: 31 [2019-08-05 10:38:49,631 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2019-08-05 10:38:49,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-08-05 10:38:49,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-08-05 10:38:49,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-08-05 10:38:49,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2019-08-05 10:38:49,634 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 29 [2019-08-05 10:38:49,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:49,634 INFO L475 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2019-08-05 10:38:49,634 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-08-05 10:38:49,635 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-08-05 10:38:49,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-08-05 10:38:49,635 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:49,635 INFO L399 BasicCegarLoop]: trace histogram [27, 1, 1, 1] [2019-08-05 10:38:49,635 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:49,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:49,636 INFO L82 PathProgramCache]: Analyzing trace with hash -398665915, now seen corresponding path program 27 times [2019-08-05 10:38:49,637 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:49,665 WARN L254 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 57 conjunts are in the unsatisfiable core [2019-08-05 10:38:49,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:49,721 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,721 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,823 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,824 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,876 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,876 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,877 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:49,931 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 10:38:50,059 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,122 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,123 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,194 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,195 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,254 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,254 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,255 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,316 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,385 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,385 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,448 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,520 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,521 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,601 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,786 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,786 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,787 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,857 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:50,937 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,018 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,101 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,183 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,184 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,184 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,266 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,267 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,359 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,359 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,360 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,524 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,524 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,525 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,693 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,693 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,877 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,877 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,976 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,976 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:51,977 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,022 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 10:38:52,022 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:52,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2019-08-05 10:38:52,023 INFO L454 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-08-05 10:38:52,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-08-05 10:38:52,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2019-08-05 10:38:52,024 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 30 states. [2019-08-05 10:38:52,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:52,737 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2019-08-05 10:38:52,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-08-05 10:38:52,738 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 30 [2019-08-05 10:38:52,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:52,738 INFO L225 Difference]: With dead ends: 32 [2019-08-05 10:38:52,738 INFO L226 Difference]: Without dead ends: 32 [2019-08-05 10:38:52,739 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2019-08-05 10:38:52,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-08-05 10:38:52,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-08-05 10:38:52,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-08-05 10:38:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2019-08-05 10:38:52,743 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 30 [2019-08-05 10:38:52,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:52,743 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2019-08-05 10:38:52,743 INFO L476 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-08-05 10:38:52,743 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2019-08-05 10:38:52,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-08-05 10:38:52,744 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:52,744 INFO L399 BasicCegarLoop]: trace histogram [28, 1, 1, 1] [2019-08-05 10:38:52,744 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:52,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:52,744 INFO L82 PathProgramCache]: Analyzing trace with hash 526273902, now seen corresponding path program 28 times [2019-08-05 10:38:52,745 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:52,771 WARN L254 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 59 conjunts are in the unsatisfiable core [2019-08-05 10:38:52,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:52,814 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,815 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,853 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,898 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,899 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:52,900 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,126 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 16 [2019-08-05 10:38:53,127 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,128 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,192 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,252 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,312 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,368 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,368 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,369 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,425 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,425 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,426 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,555 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,622 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,622 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,681 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,681 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,682 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,831 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,831 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,894 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:53,956 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,029 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,030 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,111 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,187 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,264 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,264 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,265 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,338 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,338 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,415 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,504 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,505 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,593 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,675 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,676 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:54,811 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 10:38:54,906 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,005 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,006 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,006 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,048 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 10:38:55,048 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:55,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2019-08-05 10:38:55,048 INFO L454 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-08-05 10:38:55,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-08-05 10:38:55,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2019-08-05 10:38:55,049 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 31 states. [2019-08-05 10:38:55,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:55,769 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2019-08-05 10:38:55,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-08-05 10:38:55,770 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 31 [2019-08-05 10:38:55,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:55,770 INFO L225 Difference]: With dead ends: 33 [2019-08-05 10:38:55,770 INFO L226 Difference]: Without dead ends: 33 [2019-08-05 10:38:55,771 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2019-08-05 10:38:55,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-08-05 10:38:55,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-08-05 10:38:55,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-08-05 10:38:55,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2019-08-05 10:38:55,774 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 31 [2019-08-05 10:38:55,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:55,775 INFO L475 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2019-08-05 10:38:55,775 INFO L476 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-08-05 10:38:55,775 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2019-08-05 10:38:55,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-08-05 10:38:55,775 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:55,776 INFO L399 BasicCegarLoop]: trace histogram [29, 1, 1, 1] [2019-08-05 10:38:55,776 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:55,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:55,776 INFO L82 PathProgramCache]: Analyzing trace with hash -865362843, now seen corresponding path program 29 times [2019-08-05 10:38:55,777 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:55,807 WARN L254 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 61 conjunts are in the unsatisfiable core [2019-08-05 10:38:55,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:55,862 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,914 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,955 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,956 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:55,956 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,004 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,005 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,056 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,114 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,175 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,176 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,244 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,293 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,351 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,475 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,476 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,476 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,535 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,624 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,745 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,883 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2019-08-05 10:38:56,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,885 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:56,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,083 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,083 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,156 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,235 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,235 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,311 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,311 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,312 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,387 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,387 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,388 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,465 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,645 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,645 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,728 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,729 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,814 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,896 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,896 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,897 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,980 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,980 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:57,981 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,034 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 10:38:58,034 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:38:58,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2019-08-05 10:38:58,035 INFO L454 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-08-05 10:38:58,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-08-05 10:38:58,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=931, Unknown=0, NotChecked=0, Total=992 [2019-08-05 10:38:58,035 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 32 states. [2019-08-05 10:38:58,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:38:58,845 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-08-05 10:38:58,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-08-05 10:38:58,846 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 32 [2019-08-05 10:38:58,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:38:58,846 INFO L225 Difference]: With dead ends: 34 [2019-08-05 10:38:58,846 INFO L226 Difference]: Without dead ends: 34 [2019-08-05 10:38:58,848 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=61, Invalid=931, Unknown=0, NotChecked=0, Total=992 [2019-08-05 10:38:58,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-08-05 10:38:58,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-08-05 10:38:58,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-08-05 10:38:58,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2019-08-05 10:38:58,850 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 32 [2019-08-05 10:38:58,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:38:58,851 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2019-08-05 10:38:58,851 INFO L476 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-08-05 10:38:58,851 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2019-08-05 10:38:58,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-08-05 10:38:58,851 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:38:58,852 INFO L399 BasicCegarLoop]: trace histogram [30, 1, 1, 1] [2019-08-05 10:38:58,852 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:38:58,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:38:58,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1056428978, now seen corresponding path program 30 times [2019-08-05 10:38:58,853 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:38:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:38:58,879 WARN L254 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 63 conjunts are in the unsatisfiable core [2019-08-05 10:38:58,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:38:58,919 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,920 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,960 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:58,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,073 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,073 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,074 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,127 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,186 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 10:38:59,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,320 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,376 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,377 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,378 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,448 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,448 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 10:38:59,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,524 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,584 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,638 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,639 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,717 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,717 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,796 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,797 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,866 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,867 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 10:38:59,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:38:59,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,012 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,091 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,092 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,092 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,168 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 10:39:00,257 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,338 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,339 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,433 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,520 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,520 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,615 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,616 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,710 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,710 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 10:39:00,807 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,807 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,894 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:00,975 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,088 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,089 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,089 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:01,127 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 10:39:01,127 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:01,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2019-08-05 10:39:01,128 INFO L454 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-08-05 10:39:01,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-08-05 10:39:01,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2019-08-05 10:39:01,128 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 33 states. [2019-08-05 10:39:02,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:02,082 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2019-08-05 10:39:02,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-08-05 10:39:02,083 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 33 [2019-08-05 10:39:02,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:02,083 INFO L225 Difference]: With dead ends: 35 [2019-08-05 10:39:02,083 INFO L226 Difference]: Without dead ends: 35 [2019-08-05 10:39:02,084 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2019-08-05 10:39:02,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-08-05 10:39:02,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-08-05 10:39:02,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-08-05 10:39:02,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2019-08-05 10:39:02,086 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 33 [2019-08-05 10:39:02,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:02,086 INFO L475 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2019-08-05 10:39:02,086 INFO L476 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-08-05 10:39:02,086 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2019-08-05 10:39:02,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-08-05 10:39:02,087 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:02,087 INFO L399 BasicCegarLoop]: trace histogram [31, 1, 1, 1] [2019-08-05 10:39:02,087 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:02,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:02,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1610455429, now seen corresponding path program 31 times [2019-08-05 10:39:02,088 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:02,120 WARN L254 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 65 conjunts are in the unsatisfiable core [2019-08-05 10:39:02,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:02,194 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,194 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,259 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,301 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,301 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,302 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,415 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,415 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,478 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,478 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,536 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,597 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,597 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,598 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,652 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,712 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,712 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,713 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:02,996 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,086 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,151 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,224 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,304 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,379 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,380 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,380 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,448 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,448 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,449 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,515 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,516 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,617 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,617 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,618 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,687 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,687 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,778 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,863 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,864 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,956 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,957 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:03,957 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,040 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,040 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,041 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,155 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,264 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,264 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,265 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,461 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,461 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,462 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,551 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,552 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,552 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:04,592 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 10:39:04,593 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:04,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2019-08-05 10:39:04,593 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-08-05 10:39:04,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-08-05 10:39:04,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=1057, Unknown=0, NotChecked=0, Total=1122 [2019-08-05 10:39:04,594 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 34 states. [2019-08-05 10:39:05,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:05,512 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2019-08-05 10:39:05,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-08-05 10:39:05,513 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 34 [2019-08-05 10:39:05,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:05,514 INFO L225 Difference]: With dead ends: 36 [2019-08-05 10:39:05,514 INFO L226 Difference]: Without dead ends: 36 [2019-08-05 10:39:05,515 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=65, Invalid=1057, Unknown=0, NotChecked=0, Total=1122 [2019-08-05 10:39:05,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-08-05 10:39:05,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-08-05 10:39:05,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-08-05 10:39:05,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2019-08-05 10:39:05,517 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34 [2019-08-05 10:39:05,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:05,518 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2019-08-05 10:39:05,518 INFO L476 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-08-05 10:39:05,518 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2019-08-05 10:39:05,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-08-05 10:39:05,519 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:05,519 INFO L399 BasicCegarLoop]: trace histogram [32, 1, 1, 1] [2019-08-05 10:39:05,519 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:05,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:05,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1615473874, now seen corresponding path program 32 times [2019-08-05 10:39:05,520 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:05,555 WARN L254 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 67 conjunts are in the unsatisfiable core [2019-08-05 10:39:05,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:05,761 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:39:05,763 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,278 WARN L188 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 16 [2019-08-05 10:39:06,279 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,280 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,330 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,331 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,332 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,381 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,382 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,382 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,433 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,434 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,435 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,487 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,551 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,622 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,623 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,624 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,682 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,750 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,751 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,827 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,974 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 17 [2019-08-05 10:39:06,975 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,975 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:06,976 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,078 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,078 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,079 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,209 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,209 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,295 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,362 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,437 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,437 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,700 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,701 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,701 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,776 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,867 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,867 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,868 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:07,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,039 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,130 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,216 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,307 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,307 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,308 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,393 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,393 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,394 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,478 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,479 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,568 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,657 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,752 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,753 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:08,812 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 10:39:08,813 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:08,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2019-08-05 10:39:08,813 INFO L454 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-08-05 10:39:08,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-08-05 10:39:08,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2019-08-05 10:39:08,814 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 35 states. [2019-08-05 10:39:09,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:09,748 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-08-05 10:39:09,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-08-05 10:39:09,748 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 35 [2019-08-05 10:39:09,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:09,749 INFO L225 Difference]: With dead ends: 37 [2019-08-05 10:39:09,749 INFO L226 Difference]: Without dead ends: 37 [2019-08-05 10:39:09,750 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2019-08-05 10:39:09,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-08-05 10:39:09,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-08-05 10:39:09,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-08-05 10:39:09,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2019-08-05 10:39:09,752 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 35 [2019-08-05 10:39:09,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:09,753 INFO L475 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2019-08-05 10:39:09,753 INFO L476 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-08-05 10:39:09,753 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2019-08-05 10:39:09,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-08-05 10:39:09,753 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:09,753 INFO L399 BasicCegarLoop]: trace histogram [33, 1, 1, 1] [2019-08-05 10:39:09,754 INFO L418 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:09,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:09,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1459932837, now seen corresponding path program 33 times [2019-08-05 10:39:09,754 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:09,784 WARN L254 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 69 conjunts are in the unsatisfiable core [2019-08-05 10:39:09,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:09,834 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,834 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,894 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:09,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,060 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,060 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,061 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,111 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,112 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,112 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,180 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 10:39:10,247 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,318 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,318 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,319 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,375 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,375 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,376 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,435 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,503 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,504 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,504 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,561 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,561 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,562 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,622 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,622 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,760 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,760 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,826 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,902 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:10,902 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 10:39:10,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,065 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,143 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,144 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,235 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,460 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,546 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,547 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,635 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,636 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,728 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,729 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,730 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,812 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,892 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:11,994 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,164 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,165 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,165 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,290 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,290 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,290 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,426 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,427 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,529 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,530 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,530 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:12,578 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 10:39:12,578 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:12,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2019-08-05 10:39:12,578 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-08-05 10:39:12,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-08-05 10:39:12,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1191, Unknown=0, NotChecked=0, Total=1260 [2019-08-05 10:39:12,579 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 36 states. [2019-08-05 10:39:13,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:13,587 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2019-08-05 10:39:13,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-08-05 10:39:13,588 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 36 [2019-08-05 10:39:13,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:13,588 INFO L225 Difference]: With dead ends: 38 [2019-08-05 10:39:13,589 INFO L226 Difference]: Without dead ends: 38 [2019-08-05 10:39:13,590 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=69, Invalid=1191, Unknown=0, NotChecked=0, Total=1260 [2019-08-05 10:39:13,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-08-05 10:39:13,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-08-05 10:39:13,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-08-05 10:39:13,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2019-08-05 10:39:13,592 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 36 [2019-08-05 10:39:13,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:13,593 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2019-08-05 10:39:13,593 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-08-05 10:39:13,593 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2019-08-05 10:39:13,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-08-05 10:39:13,593 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:13,593 INFO L399 BasicCegarLoop]: trace histogram [34, 1, 1, 1] [2019-08-05 10:39:13,594 INFO L418 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:13,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:13,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1986706930, now seen corresponding path program 34 times [2019-08-05 10:39:13,594 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:13,628 WARN L254 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 71 conjunts are in the unsatisfiable core [2019-08-05 10:39:13,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:13,681 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,681 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,742 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,743 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,793 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,850 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,850 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 10:39:13,978 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:13,979 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,036 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,036 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,097 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,157 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,157 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,158 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,218 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,280 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,281 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,281 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,342 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,399 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,400 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,401 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,467 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,468 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,624 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,625 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,695 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,696 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,785 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,865 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,866 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:14,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,031 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,123 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,124 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,229 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,229 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,230 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,309 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,404 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,405 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,502 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,502 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,503 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,579 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,661 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,662 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,749 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,750 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,854 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,855 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:15,946 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:16,044 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:16,142 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:16,142 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:16,252 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:16,253 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:16,253 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:16,296 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 10:39:16,297 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:16,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2019-08-05 10:39:16,297 INFO L454 AbstractCegarLoop]: Interpolant automaton has 37 states [2019-08-05 10:39:16,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2019-08-05 10:39:16,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2019-08-05 10:39:16,298 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 37 states. [2019-08-05 10:39:17,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:17,493 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2019-08-05 10:39:17,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-08-05 10:39:17,494 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 37 [2019-08-05 10:39:17,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:17,494 INFO L225 Difference]: With dead ends: 39 [2019-08-05 10:39:17,495 INFO L226 Difference]: Without dead ends: 39 [2019-08-05 10:39:17,496 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2019-08-05 10:39:17,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-08-05 10:39:17,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-08-05 10:39:17,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-08-05 10:39:17,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2019-08-05 10:39:17,497 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 37 [2019-08-05 10:39:17,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:17,498 INFO L475 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2019-08-05 10:39:17,498 INFO L476 AbstractCegarLoop]: Interpolant automaton has 37 states. [2019-08-05 10:39:17,498 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2019-08-05 10:39:17,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-08-05 10:39:17,498 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:17,498 INFO L399 BasicCegarLoop]: trace histogram [35, 1, 1, 1] [2019-08-05 10:39:17,499 INFO L418 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:17,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:17,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1458357307, now seen corresponding path program 35 times [2019-08-05 10:39:17,500 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:17,535 WARN L254 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 73 conjunts are in the unsatisfiable core [2019-08-05 10:39:17,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:17,593 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,593 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,632 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,633 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,696 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,697 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,698 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,749 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,749 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,819 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,819 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,820 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,940 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:17,996 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,060 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,061 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,134 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,134 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,195 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,256 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,325 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,385 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,467 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,547 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,548 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,615 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,616 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,699 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,699 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,700 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,766 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,766 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,837 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,909 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,988 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:18,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:19,481 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 16 [2019-08-05 10:39:19,482 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:19,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:19,575 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:19,575 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:19,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:19,684 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:19,852 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:19,853 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:19,965 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:19,966 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:19,966 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,056 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,132 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,133 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,133 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,220 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,221 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,322 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,411 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,608 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,608 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,743 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,744 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,744 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,849 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,850 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,850 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:20,898 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 10:39:20,898 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:20,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2019-08-05 10:39:20,898 INFO L454 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-08-05 10:39:20,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-08-05 10:39:20,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1333, Unknown=0, NotChecked=0, Total=1406 [2019-08-05 10:39:20,899 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 38 states. [2019-08-05 10:39:22,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:22,003 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2019-08-05 10:39:22,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-08-05 10:39:22,003 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 38 [2019-08-05 10:39:22,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:22,004 INFO L225 Difference]: With dead ends: 40 [2019-08-05 10:39:22,004 INFO L226 Difference]: Without dead ends: 40 [2019-08-05 10:39:22,005 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=73, Invalid=1333, Unknown=0, NotChecked=0, Total=1406 [2019-08-05 10:39:22,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-08-05 10:39:22,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-08-05 10:39:22,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-08-05 10:39:22,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2019-08-05 10:39:22,007 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 38 [2019-08-05 10:39:22,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:22,007 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2019-08-05 10:39:22,007 INFO L476 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-08-05 10:39:22,008 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2019-08-05 10:39:22,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-08-05 10:39:22,008 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:22,008 INFO L399 BasicCegarLoop]: trace histogram [36, 1, 1, 1] [2019-08-05 10:39:22,008 INFO L418 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:22,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:22,008 INFO L82 PathProgramCache]: Analyzing trace with hash 2035579118, now seen corresponding path program 36 times [2019-08-05 10:39:22,009 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:22,046 WARN L254 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 75 conjunts are in the unsatisfiable core [2019-08-05 10:39:22,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:22,167 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,235 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,235 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,383 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 17 [2019-08-05 10:39:22,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,513 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 17 [2019-08-05 10:39:22,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,577 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,578 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,640 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,640 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,641 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,753 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,802 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,865 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,928 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,929 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:22,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,053 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,125 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,126 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,202 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,271 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,272 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,272 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,358 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,435 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,520 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,521 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,521 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,595 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,673 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,673 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,674 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,916 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:23,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,000 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,088 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,176 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,176 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,177 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,258 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,258 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,346 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,441 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,441 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,531 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,640 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,735 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,736 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,832 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:24,926 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:25,027 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:25,028 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:25,028 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:25,077 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 10:39:25,077 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:25,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2019-08-05 10:39:25,077 INFO L454 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-08-05 10:39:25,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-08-05 10:39:25,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2019-08-05 10:39:25,078 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 39 states. [2019-08-05 10:39:26,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:26,296 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2019-08-05 10:39:26,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-08-05 10:39:26,300 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 39 [2019-08-05 10:39:26,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:26,300 INFO L225 Difference]: With dead ends: 41 [2019-08-05 10:39:26,300 INFO L226 Difference]: Without dead ends: 41 [2019-08-05 10:39:26,301 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2019-08-05 10:39:26,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-08-05 10:39:26,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-08-05 10:39:26,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-08-05 10:39:26,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2019-08-05 10:39:26,303 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 39 [2019-08-05 10:39:26,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:26,303 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2019-08-05 10:39:26,303 INFO L476 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-08-05 10:39:26,303 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2019-08-05 10:39:26,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-08-05 10:39:26,304 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:26,304 INFO L399 BasicCegarLoop]: trace histogram [37, 1, 1, 1] [2019-08-05 10:39:26,304 INFO L418 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:26,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:26,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1321541403, now seen corresponding path program 37 times [2019-08-05 10:39:26,305 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:26,352 WARN L254 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 77 conjunts are in the unsatisfiable core [2019-08-05 10:39:26,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:26,444 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,444 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,484 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,528 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,528 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,588 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,647 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,648 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,715 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,776 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,880 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,943 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,944 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:26,944 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,003 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,004 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,075 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,132 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,132 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,191 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,192 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,270 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,271 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,359 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,500 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,682 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2019-08-05 10:39:27,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,768 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,768 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,769 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,841 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,842 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,927 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,927 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:27,928 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,004 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,086 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,086 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,161 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,328 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,328 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,422 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,507 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,508 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,694 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,787 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,788 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,878 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,878 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,879 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,966 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,967 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:28,967 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:29,057 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:29,143 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:29,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:29,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:29,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:29,339 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:29,340 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:29,340 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:29,389 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 10:39:29,389 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:29,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2019-08-05 10:39:29,389 INFO L454 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-08-05 10:39:29,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-08-05 10:39:29,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2019-08-05 10:39:29,390 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 40 states. [2019-08-05 10:39:30,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:30,614 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2019-08-05 10:39:30,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-08-05 10:39:30,614 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 40 [2019-08-05 10:39:30,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:30,615 INFO L225 Difference]: With dead ends: 42 [2019-08-05 10:39:30,615 INFO L226 Difference]: Without dead ends: 42 [2019-08-05 10:39:30,616 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2019-08-05 10:39:30,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-08-05 10:39:30,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-08-05 10:39:30,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-08-05 10:39:30,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2019-08-05 10:39:30,618 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 40 [2019-08-05 10:39:30,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:30,618 INFO L475 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2019-08-05 10:39:30,619 INFO L476 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-08-05 10:39:30,619 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2019-08-05 10:39:30,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-08-05 10:39:30,619 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:30,619 INFO L399 BasicCegarLoop]: trace histogram [38, 1, 1, 1] [2019-08-05 10:39:30,620 INFO L418 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:30,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:30,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1981904846, now seen corresponding path program 38 times [2019-08-05 10:39:30,620 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:30,662 WARN L254 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 79 conjunts are in the unsatisfiable core [2019-08-05 10:39:30,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:30,754 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:30,806 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:30,849 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:30,906 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:30,907 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:30,957 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:30,958 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:30,959 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,009 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,084 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,084 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,151 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,261 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,261 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,322 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,378 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,434 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,509 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,510 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,510 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,572 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,572 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,638 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,638 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,639 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,708 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,708 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,786 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,786 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,787 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,852 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,852 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,853 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:31,927 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,009 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,010 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,100 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,282 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,283 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,380 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,500 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,500 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,634 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,780 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:32,905 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,107 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,221 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,221 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,222 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,312 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,413 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,504 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,710 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,823 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,823 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,824 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:33,883 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 10:39:33,884 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:33,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2019-08-05 10:39:33,884 INFO L454 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-08-05 10:39:33,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-08-05 10:39:33,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2019-08-05 10:39:33,885 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 41 states. [2019-08-05 10:39:35,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:35,254 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2019-08-05 10:39:35,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-08-05 10:39:35,255 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 41 [2019-08-05 10:39:35,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:35,255 INFO L225 Difference]: With dead ends: 43 [2019-08-05 10:39:35,256 INFO L226 Difference]: Without dead ends: 43 [2019-08-05 10:39:35,257 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2019-08-05 10:39:35,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-08-05 10:39:35,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-08-05 10:39:35,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-08-05 10:39:35,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2019-08-05 10:39:35,259 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 41 [2019-08-05 10:39:35,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:35,259 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2019-08-05 10:39:35,259 INFO L476 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-08-05 10:39:35,260 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2019-08-05 10:39:35,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-08-05 10:39:35,260 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:35,260 INFO L399 BasicCegarLoop]: trace histogram [39, 1, 1, 1] [2019-08-05 10:39:35,260 INFO L418 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:35,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:35,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1309523461, now seen corresponding path program 39 times [2019-08-05 10:39:35,261 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:35,300 WARN L254 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 81 conjunts are in the unsatisfiable core [2019-08-05 10:39:35,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:35,346 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,398 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,398 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,470 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,529 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,529 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,530 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,581 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,634 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,635 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,635 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,705 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,771 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,904 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,904 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,981 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:35,981 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,046 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,047 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,112 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,186 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,186 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,268 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,269 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,340 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,341 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,342 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,491 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,572 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,674 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,675 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,756 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,840 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,840 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,938 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:36,939 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,022 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,023 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,110 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,111 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,111 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,195 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,292 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,293 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,396 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,494 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,494 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,495 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,815 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,815 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,938 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:37,938 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,064 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,064 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,065 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,162 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,162 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,261 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,261 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,372 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,373 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,373 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,492 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,596 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,596 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,713 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,714 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,714 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:38,766 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 10:39:38,766 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:38,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2019-08-05 10:39:38,766 INFO L454 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-08-05 10:39:38,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-08-05 10:39:38,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1641, Unknown=0, NotChecked=0, Total=1722 [2019-08-05 10:39:38,767 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 42 states. [2019-08-05 10:39:40,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:40,210 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2019-08-05 10:39:40,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-08-05 10:39:40,211 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 42 [2019-08-05 10:39:40,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:40,212 INFO L225 Difference]: With dead ends: 44 [2019-08-05 10:39:40,212 INFO L226 Difference]: Without dead ends: 44 [2019-08-05 10:39:40,213 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=81, Invalid=1641, Unknown=0, NotChecked=0, Total=1722 [2019-08-05 10:39:40,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-08-05 10:39:40,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-08-05 10:39:40,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-08-05 10:39:40,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2019-08-05 10:39:40,215 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 42 [2019-08-05 10:39:40,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:40,215 INFO L475 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2019-08-05 10:39:40,215 INFO L476 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-08-05 10:39:40,215 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2019-08-05 10:39:40,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-08-05 10:39:40,215 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:40,216 INFO L399 BasicCegarLoop]: trace histogram [40, 1, 1, 1] [2019-08-05 10:39:40,216 INFO L418 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:40,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:40,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1940537006, now seen corresponding path program 40 times [2019-08-05 10:39:40,217 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:40,250 WARN L254 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 83 conjunts are in the unsatisfiable core [2019-08-05 10:39:40,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:40,291 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,292 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,354 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,355 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,407 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,467 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,468 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,468 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,522 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,584 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,584 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,641 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,642 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,642 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,697 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,750 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,751 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,812 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,874 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,875 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,876 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,931 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:40,991 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,066 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,140 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,140 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,141 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,210 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,286 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,287 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,365 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,366 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,456 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,531 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,531 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,610 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,697 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,698 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,798 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,799 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,877 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,968 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,969 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:41,969 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,053 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,054 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,153 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,241 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,241 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,330 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,330 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,420 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,512 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,513 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,513 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,606 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,734 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,734 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,735 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:42,865 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,103 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,103 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,104 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,200 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,201 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,201 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,315 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,316 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,427 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,428 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,428 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,523 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,629 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,629 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:43,683 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 10:39:43,684 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:43,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2019-08-05 10:39:43,684 INFO L454 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-08-05 10:39:43,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-08-05 10:39:43,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2019-08-05 10:39:43,685 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 43 states. [2019-08-05 10:39:45,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:45,195 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2019-08-05 10:39:45,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2019-08-05 10:39:45,196 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 43 [2019-08-05 10:39:45,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:45,197 INFO L225 Difference]: With dead ends: 45 [2019-08-05 10:39:45,197 INFO L226 Difference]: Without dead ends: 45 [2019-08-05 10:39:45,198 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2019-08-05 10:39:45,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-08-05 10:39:45,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-08-05 10:39:45,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-08-05 10:39:45,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2019-08-05 10:39:45,200 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 43 [2019-08-05 10:39:45,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:45,200 INFO L475 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2019-08-05 10:39:45,200 INFO L476 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-08-05 10:39:45,200 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2019-08-05 10:39:45,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-08-05 10:39:45,201 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:45,201 INFO L399 BasicCegarLoop]: trace histogram [41, 1, 1, 1] [2019-08-05 10:39:45,201 INFO L418 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:45,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:45,201 INFO L82 PathProgramCache]: Analyzing trace with hash 27120421, now seen corresponding path program 41 times [2019-08-05 10:39:45,202 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:45,254 WARN L254 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 85 conjunts are in the unsatisfiable core [2019-08-05 10:39:45,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:45,337 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,392 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,393 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,457 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,515 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,516 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,563 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,564 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,564 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,617 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,618 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,752 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,753 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,881 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,882 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,882 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,947 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,947 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:45,948 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,070 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,070 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,137 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,137 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,205 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,206 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,272 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,273 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,359 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,438 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,604 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,687 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,766 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,854 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,855 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,855 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:46,932 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,022 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,023 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,110 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,111 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,212 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,293 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,382 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,382 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,383 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,470 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,470 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,471 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,560 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,561 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,561 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,645 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,646 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,737 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,738 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:47,891 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,074 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,235 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,349 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,449 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,556 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,557 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,655 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,655 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,776 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:48,832 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 10:39:48,832 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:48,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2019-08-05 10:39:48,832 INFO L454 AbstractCegarLoop]: Interpolant automaton has 44 states [2019-08-05 10:39:48,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2019-08-05 10:39:48,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1807, Unknown=0, NotChecked=0, Total=1892 [2019-08-05 10:39:48,833 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 44 states. [2019-08-05 10:39:50,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:50,396 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2019-08-05 10:39:50,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-08-05 10:39:50,397 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 44 [2019-08-05 10:39:50,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:50,398 INFO L225 Difference]: With dead ends: 46 [2019-08-05 10:39:50,398 INFO L226 Difference]: Without dead ends: 46 [2019-08-05 10:39:50,399 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=85, Invalid=1807, Unknown=0, NotChecked=0, Total=1892 [2019-08-05 10:39:50,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-08-05 10:39:50,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-08-05 10:39:50,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-08-05 10:39:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2019-08-05 10:39:50,401 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 44 [2019-08-05 10:39:50,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:50,401 INFO L475 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2019-08-05 10:39:50,401 INFO L476 AbstractCegarLoop]: Interpolant automaton has 44 states. [2019-08-05 10:39:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2019-08-05 10:39:50,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-08-05 10:39:50,402 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:50,402 INFO L399 BasicCegarLoop]: trace histogram [42, 1, 1, 1] [2019-08-05 10:39:50,402 INFO L418 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:50,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:50,402 INFO L82 PathProgramCache]: Analyzing trace with hash 840748430, now seen corresponding path program 42 times [2019-08-05 10:39:50,403 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:50,451 WARN L254 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 87 conjunts are in the unsatisfiable core [2019-08-05 10:39:50,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:50,676 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:39:50,678 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,216 WARN L188 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 16 [2019-08-05 10:39:51,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,218 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,282 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,282 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,283 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,333 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,334 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,387 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,447 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,448 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,515 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,578 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,578 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,711 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,711 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,771 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,847 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,903 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,904 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,904 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:51,984 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,058 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,059 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,130 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,281 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,282 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,282 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,355 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,436 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,437 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,515 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,598 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,598 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,679 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,680 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,760 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,843 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:52,967 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,131 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2019-08-05 10:39:53,132 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,133 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,133 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,273 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,273 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,274 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,375 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,473 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,571 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,676 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,871 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,872 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:53,968 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,076 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,077 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,078 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,173 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,173 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,174 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,277 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,277 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,278 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,383 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,494 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,495 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,615 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,723 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,724 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,724 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:54,778 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 10:39:54,779 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:39:54,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2019-08-05 10:39:54,779 INFO L454 AbstractCegarLoop]: Interpolant automaton has 45 states [2019-08-05 10:39:54,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2019-08-05 10:39:54,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980 [2019-08-05 10:39:54,780 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 45 states. [2019-08-05 10:39:56,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:39:56,475 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2019-08-05 10:39:56,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-08-05 10:39:56,476 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 45 [2019-08-05 10:39:56,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:39:56,476 INFO L225 Difference]: With dead ends: 47 [2019-08-05 10:39:56,476 INFO L226 Difference]: Without dead ends: 47 [2019-08-05 10:39:56,478 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980 [2019-08-05 10:39:56,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-08-05 10:39:56,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-08-05 10:39:56,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-08-05 10:39:56,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2019-08-05 10:39:56,480 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2019-08-05 10:39:56,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:39:56,480 INFO L475 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2019-08-05 10:39:56,481 INFO L476 AbstractCegarLoop]: Interpolant automaton has 45 states. [2019-08-05 10:39:56,481 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2019-08-05 10:39:56,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-08-05 10:39:56,481 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:39:56,481 INFO L399 BasicCegarLoop]: trace histogram [43, 1, 1, 1] [2019-08-05 10:39:56,481 INFO L418 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:39:56,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:39:56,482 INFO L82 PathProgramCache]: Analyzing trace with hash 293412933, now seen corresponding path program 43 times [2019-08-05 10:39:56,482 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:39:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:39:56,533 WARN L254 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 89 conjunts are in the unsatisfiable core [2019-08-05 10:39:56,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:39:56,595 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,595 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,635 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,636 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,696 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,697 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,762 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,762 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,763 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,815 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,816 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,870 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,871 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,929 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,993 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,994 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:56,994 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,046 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,119 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,119 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,178 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,309 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,375 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,376 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,457 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,534 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,611 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,612 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,684 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,684 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,685 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,758 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,758 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,758 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,832 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,909 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,910 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,988 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:57,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,140 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 17 [2019-08-05 10:39:58,141 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,141 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,281 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,281 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,366 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,456 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,457 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,620 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,711 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,711 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,712 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,818 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,819 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,819 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,909 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:58,910 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,290 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,291 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,291 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,387 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,503 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,504 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,604 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,605 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,721 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,948 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,949 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:39:59,949 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:00,071 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:00,072 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:00,072 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:00,186 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:00,186 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:00,187 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:00,243 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 10:40:00,243 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:40:00,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2019-08-05 10:40:00,244 INFO L454 AbstractCegarLoop]: Interpolant automaton has 46 states [2019-08-05 10:40:00,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2019-08-05 10:40:00,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1981, Unknown=0, NotChecked=0, Total=2070 [2019-08-05 10:40:00,245 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 46 states. [2019-08-05 10:40:01,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:40:01,971 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2019-08-05 10:40:01,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-08-05 10:40:01,972 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 46 [2019-08-05 10:40:01,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:40:01,973 INFO L225 Difference]: With dead ends: 48 [2019-08-05 10:40:01,973 INFO L226 Difference]: Without dead ends: 48 [2019-08-05 10:40:01,973 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=89, Invalid=1981, Unknown=0, NotChecked=0, Total=2070 [2019-08-05 10:40:01,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-08-05 10:40:01,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2019-08-05 10:40:01,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-08-05 10:40:01,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2019-08-05 10:40:01,976 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 46 [2019-08-05 10:40:01,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:40:01,976 INFO L475 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2019-08-05 10:40:01,976 INFO L476 AbstractCegarLoop]: Interpolant automaton has 46 states. [2019-08-05 10:40:01,976 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2019-08-05 10:40:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-08-05 10:40:01,977 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:40:01,977 INFO L399 BasicCegarLoop]: trace histogram [44, 1, 1, 1] [2019-08-05 10:40:01,977 INFO L418 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:40:01,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:40:01,977 INFO L82 PathProgramCache]: Analyzing trace with hash 505881710, now seen corresponding path program 44 times [2019-08-05 10:40:01,978 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:40:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:40:02,029 WARN L254 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 91 conjunts are in the unsatisfiable core [2019-08-05 10:40:02,031 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:40:02,079 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,079 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,141 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,141 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,142 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,190 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,307 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,308 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,373 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,374 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,446 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,511 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,568 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,693 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,694 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,773 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,837 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,837 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,897 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,897 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,898 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,960 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:02,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,030 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,031 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,101 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,101 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,222 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,222 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,223 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,392 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,392 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,392 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,495 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,496 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,496 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,612 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,613 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,613 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,687 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,687 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,785 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,869 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,869 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,956 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,956 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:03,957 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,038 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,038 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,039 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,123 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,202 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,291 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,291 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,292 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,395 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,395 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,486 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,583 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,584 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,686 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,789 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,789 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,790 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,887 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:04,888 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,002 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,003 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,004 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,413 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,413 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,414 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,533 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,645 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,754 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,877 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,877 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,878 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:05,938 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 10:40:05,938 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:40:05,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2019-08-05 10:40:05,939 INFO L454 AbstractCegarLoop]: Interpolant automaton has 47 states [2019-08-05 10:40:05,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2019-08-05 10:40:05,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=2071, Unknown=0, NotChecked=0, Total=2162 [2019-08-05 10:40:05,939 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 47 states. [2019-08-05 10:40:07,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:40:07,717 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2019-08-05 10:40:07,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-08-05 10:40:07,717 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 47 [2019-08-05 10:40:07,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:40:07,718 INFO L225 Difference]: With dead ends: 49 [2019-08-05 10:40:07,718 INFO L226 Difference]: Without dead ends: 49 [2019-08-05 10:40:07,719 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=91, Invalid=2071, Unknown=0, NotChecked=0, Total=2162 [2019-08-05 10:40:07,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-08-05 10:40:07,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-08-05 10:40:07,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-08-05 10:40:07,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2019-08-05 10:40:07,721 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 47 [2019-08-05 10:40:07,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:40:07,721 INFO L475 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2019-08-05 10:40:07,721 INFO L476 AbstractCegarLoop]: Interpolant automaton has 47 states. [2019-08-05 10:40:07,721 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2019-08-05 10:40:07,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-08-05 10:40:07,722 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:40:07,722 INFO L399 BasicCegarLoop]: trace histogram [45, 1, 1, 1] [2019-08-05 10:40:07,722 INFO L418 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:40:07,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:40:07,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1497520795, now seen corresponding path program 45 times [2019-08-05 10:40:07,723 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:40:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:40:07,778 WARN L254 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 93 conjunts are in the unsatisfiable core [2019-08-05 10:40:07,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:40:07,835 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:07,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:07,965 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:07,965 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,018 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,019 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,019 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,071 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,072 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,073 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,125 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,126 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,195 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,259 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,259 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,260 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,349 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,349 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,466 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,568 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,628 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,705 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,706 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,785 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,786 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,851 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,852 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,853 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,923 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,994 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,994 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:08,995 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,066 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,147 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,147 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,148 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,219 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,220 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,220 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,301 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,302 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,390 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,474 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,475 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,553 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,553 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,648 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,649 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,649 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,732 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,823 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:09,902 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,014 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,015 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,016 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,125 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,126 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,126 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,216 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,309 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,407 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,407 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,503 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,503 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,504 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,599 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,599 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,695 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,696 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,797 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,798 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,799 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,908 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,908 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:10,909 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,010 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,011 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,011 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,107 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,108 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,214 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,332 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,333 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,333 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,458 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,569 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,570 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,686 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,687 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,687 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:11,751 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 10:40:11,751 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:40:11,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2019-08-05 10:40:11,751 INFO L454 AbstractCegarLoop]: Interpolant automaton has 48 states [2019-08-05 10:40:11,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2019-08-05 10:40:11,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=2163, Unknown=0, NotChecked=0, Total=2256 [2019-08-05 10:40:11,752 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 48 states. [2019-08-05 10:40:13,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:40:13,700 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2019-08-05 10:40:13,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-08-05 10:40:13,700 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 48 [2019-08-05 10:40:13,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:40:13,701 INFO L225 Difference]: With dead ends: 50 [2019-08-05 10:40:13,701 INFO L226 Difference]: Without dead ends: 50 [2019-08-05 10:40:13,702 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=93, Invalid=2163, Unknown=0, NotChecked=0, Total=2256 [2019-08-05 10:40:13,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-08-05 10:40:13,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-08-05 10:40:13,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-08-05 10:40:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2019-08-05 10:40:13,703 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 48 [2019-08-05 10:40:13,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:40:13,704 INFO L475 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2019-08-05 10:40:13,704 INFO L476 AbstractCegarLoop]: Interpolant automaton has 48 states. [2019-08-05 10:40:13,704 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2019-08-05 10:40:13,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-08-05 10:40:13,704 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:40:13,705 INFO L399 BasicCegarLoop]: trace histogram [46, 1, 1, 1] [2019-08-05 10:40:13,705 INFO L418 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:40:13,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:40:13,705 INFO L82 PathProgramCache]: Analyzing trace with hash 821510990, now seen corresponding path program 46 times [2019-08-05 10:40:13,705 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:40:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:40:13,767 WARN L254 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 95 conjunts are in the unsatisfiable core [2019-08-05 10:40:13,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:40:13,870 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:13,870 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:13,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:13,918 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:13,967 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:13,968 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:13,969 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,019 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,020 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,085 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,086 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,086 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,139 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,200 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,200 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,201 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,262 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,262 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,263 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,320 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,321 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,379 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,446 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,447 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,447 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,513 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,582 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,583 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,664 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,665 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,665 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,732 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,733 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,734 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,900 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,900 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,901 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,973 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:14,973 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,059 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,059 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,136 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,137 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,137 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,236 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,237 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,314 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,315 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,316 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,396 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,396 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,478 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,479 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,570 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,571 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,571 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,655 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,741 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,741 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,742 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,916 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:15,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,020 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,020 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,021 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,106 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,107 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,107 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,205 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,300 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,415 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,506 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,507 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,507 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,606 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,606 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,706 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,812 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,812 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,916 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:16,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,022 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,022 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,023 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,121 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,122 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,246 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,352 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,353 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,354 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,464 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,465 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,465 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,576 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,577 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,578 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,690 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,690 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:17,754 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 10:40:17,754 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:40:17,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2019-08-05 10:40:17,754 INFO L454 AbstractCegarLoop]: Interpolant automaton has 49 states [2019-08-05 10:40:17,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2019-08-05 10:40:17,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=2257, Unknown=0, NotChecked=0, Total=2352 [2019-08-05 10:40:17,755 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 49 states. [2019-08-05 10:40:19,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:40:19,891 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2019-08-05 10:40:19,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-08-05 10:40:19,891 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 49 [2019-08-05 10:40:19,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:40:19,892 INFO L225 Difference]: With dead ends: 51 [2019-08-05 10:40:19,893 INFO L226 Difference]: Without dead ends: 51 [2019-08-05 10:40:19,893 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=95, Invalid=2257, Unknown=0, NotChecked=0, Total=2352 [2019-08-05 10:40:19,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-08-05 10:40:19,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-08-05 10:40:19,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-08-05 10:40:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2019-08-05 10:40:19,895 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 49 [2019-08-05 10:40:19,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:40:19,896 INFO L475 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2019-08-05 10:40:19,896 INFO L476 AbstractCegarLoop]: Interpolant automaton has 49 states. [2019-08-05 10:40:19,896 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2019-08-05 10:40:19,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-08-05 10:40:19,896 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:40:19,896 INFO L399 BasicCegarLoop]: trace histogram [47, 1, 1, 1] [2019-08-05 10:40:19,897 INFO L418 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:40:19,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:40:19,897 INFO L82 PathProgramCache]: Analyzing trace with hash -302947707, now seen corresponding path program 47 times [2019-08-05 10:40:19,897 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:40:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:40:19,967 WARN L254 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 97 conjunts are in the unsatisfiable core [2019-08-05 10:40:19,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:40:20,021 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,021 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,084 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,085 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,085 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,136 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,194 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,194 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,195 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,243 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,244 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,380 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,446 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,447 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,519 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,519 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,579 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,655 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,730 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,730 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,793 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,867 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,868 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,947 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:20,948 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,020 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,020 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,021 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,101 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,178 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,252 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,334 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,415 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,496 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,496 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,588 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,589 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,589 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,663 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,664 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,748 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,748 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,835 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,923 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:21,924 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:22,006 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:22,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:22,100 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:22,195 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:22,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:22,197 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:22,285 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:22,286 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:22,393 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:22,491 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:22,492 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:22,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:22,943 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,040 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,172 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,280 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,280 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,381 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,382 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,494 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,495 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,600 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,601 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,602 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:23,930 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:24,083 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:24,194 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:24,195 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:24,320 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:24,321 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:24,321 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:24,433 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:24,434 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:24,434 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:24,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:24,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:24,541 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:24,602 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 10:40:24,603 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:40:24,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2019-08-05 10:40:24,603 INFO L454 AbstractCegarLoop]: Interpolant automaton has 50 states [2019-08-05 10:40:24,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2019-08-05 10:40:24,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=2353, Unknown=0, NotChecked=0, Total=2450 [2019-08-05 10:40:24,604 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 50 states. [2019-08-05 10:40:26,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:40:26,639 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2019-08-05 10:40:26,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-08-05 10:40:26,639 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 50 [2019-08-05 10:40:26,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:40:26,640 INFO L225 Difference]: With dead ends: 52 [2019-08-05 10:40:26,640 INFO L226 Difference]: Without dead ends: 52 [2019-08-05 10:40:26,641 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=97, Invalid=2353, Unknown=0, NotChecked=0, Total=2450 [2019-08-05 10:40:26,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-08-05 10:40:26,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-08-05 10:40:26,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-08-05 10:40:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2019-08-05 10:40:26,643 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 50 [2019-08-05 10:40:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:40:26,643 INFO L475 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2019-08-05 10:40:26,643 INFO L476 AbstractCegarLoop]: Interpolant automaton has 50 states. [2019-08-05 10:40:26,643 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2019-08-05 10:40:26,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-08-05 10:40:26,644 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:40:26,644 INFO L399 BasicCegarLoop]: trace histogram [48, 1, 1, 1] [2019-08-05 10:40:26,644 INFO L418 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:40:26,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:40:26,645 INFO L82 PathProgramCache]: Analyzing trace with hash -801428946, now seen corresponding path program 48 times [2019-08-05 10:40:26,645 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:40:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:40:26,686 WARN L254 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 99 conjunts are in the unsatisfiable core [2019-08-05 10:40:26,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:40:26,707 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:26,787 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:26,788 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:26,788 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:26,832 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:26,832 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:26,883 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:26,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:26,885 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:26,948 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,009 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,072 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,072 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,073 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,128 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,129 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,129 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,188 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,188 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,250 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,319 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,320 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,394 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,395 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,473 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,556 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,557 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,557 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,620 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,689 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,757 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,758 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,845 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,846 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,918 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,997 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:27,998 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,073 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,074 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,152 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,152 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,231 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,231 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,232 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,311 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,311 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,409 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,502 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,503 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,600 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,600 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,700 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,701 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,701 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:28,823 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,006 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,099 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,099 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,100 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,291 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,292 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,387 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,387 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,388 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,489 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,489 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,600 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,601 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,601 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,693 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,792 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,901 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:29,902 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,002 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,002 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,003 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,109 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,110 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,111 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,234 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,352 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,353 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,353 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,456 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,568 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,568 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,569 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,684 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,684 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,795 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,795 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,923 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,924 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:30,992 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 10:40:30,992 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:40:30,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2019-08-05 10:40:30,993 INFO L454 AbstractCegarLoop]: Interpolant automaton has 51 states [2019-08-05 10:40:30,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2019-08-05 10:40:30,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=2451, Unknown=0, NotChecked=0, Total=2550 [2019-08-05 10:40:30,993 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 51 states. [2019-08-05 10:40:33,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:40:33,098 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2019-08-05 10:40:33,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-08-05 10:40:33,099 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 51 [2019-08-05 10:40:33,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:40:33,100 INFO L225 Difference]: With dead ends: 53 [2019-08-05 10:40:33,100 INFO L226 Difference]: Without dead ends: 53 [2019-08-05 10:40:33,101 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=99, Invalid=2451, Unknown=0, NotChecked=0, Total=2550 [2019-08-05 10:40:33,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-08-05 10:40:33,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-08-05 10:40:33,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-08-05 10:40:33,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2019-08-05 10:40:33,103 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 51 [2019-08-05 10:40:33,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:40:33,104 INFO L475 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2019-08-05 10:40:33,104 INFO L476 AbstractCegarLoop]: Interpolant automaton has 51 states. [2019-08-05 10:40:33,104 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2019-08-05 10:40:33,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-08-05 10:40:33,104 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:40:33,105 INFO L399 BasicCegarLoop]: trace histogram [49, 1, 1, 1] [2019-08-05 10:40:33,105 INFO L418 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:40:33,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:40:33,105 INFO L82 PathProgramCache]: Analyzing trace with hash 925521829, now seen corresponding path program 49 times [2019-08-05 10:40:33,106 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:40:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:40:33,168 WARN L254 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 101 conjunts are in the unsatisfiable core [2019-08-05 10:40:33,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:40:33,226 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,227 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,286 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,286 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,287 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,335 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,396 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,455 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,456 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,457 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,511 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,511 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,512 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,572 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,636 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,636 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,706 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,707 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,708 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,765 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,766 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,766 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,827 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:33,894 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,024 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,024 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,191 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 17 [2019-08-05 10:40:34,192 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,337 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,415 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,416 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,498 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,499 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,499 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,649 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,649 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,650 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,730 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,730 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,731 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,805 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,806 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,807 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,885 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:34,967 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,052 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,053 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,149 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,150 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,232 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,232 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,233 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,318 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,318 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,421 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,511 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,605 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,605 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,699 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,802 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,802 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,803 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,891 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,892 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,893 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:35,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,073 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,073 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,074 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,165 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,166 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,266 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,373 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,478 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,479 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,480 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,591 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,591 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,697 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,698 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,806 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,924 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,925 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:36,926 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,061 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,062 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,188 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,296 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,296 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,413 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,413 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,414 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,521 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,645 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,646 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,646 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:37,729 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 10:40:37,730 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:40:37,730 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2019-08-05 10:40:37,730 INFO L454 AbstractCegarLoop]: Interpolant automaton has 52 states [2019-08-05 10:40:37,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2019-08-05 10:40:37,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=2551, Unknown=0, NotChecked=0, Total=2652 [2019-08-05 10:40:37,731 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 52 states. [2019-08-05 10:40:40,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:40:40,061 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2019-08-05 10:40:40,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-08-05 10:40:40,062 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 52 [2019-08-05 10:40:40,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:40:40,063 INFO L225 Difference]: With dead ends: 54 [2019-08-05 10:40:40,063 INFO L226 Difference]: Without dead ends: 54 [2019-08-05 10:40:40,063 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=101, Invalid=2551, Unknown=0, NotChecked=0, Total=2652 [2019-08-05 10:40:40,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-08-05 10:40:40,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-08-05 10:40:40,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-08-05 10:40:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2019-08-05 10:40:40,065 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 52 [2019-08-05 10:40:40,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:40:40,066 INFO L475 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2019-08-05 10:40:40,066 INFO L476 AbstractCegarLoop]: Interpolant automaton has 52 states. [2019-08-05 10:40:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2019-08-05 10:40:40,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-08-05 10:40:40,066 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:40:40,067 INFO L399 BasicCegarLoop]: trace histogram [50, 1, 1, 1] [2019-08-05 10:40:40,067 INFO L418 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:40:40,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:40:40,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1373578994, now seen corresponding path program 50 times [2019-08-05 10:40:40,068 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:40:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:40:40,133 WARN L254 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 103 conjunts are in the unsatisfiable core [2019-08-05 10:40:40,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:40:40,230 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,230 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,274 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,274 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,275 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,328 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,329 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,394 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,395 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,451 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,451 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,517 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,519 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,573 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,638 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,638 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,639 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,762 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,823 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,824 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,886 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:40,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,081 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,082 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,151 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,152 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,152 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,226 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,227 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,314 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,314 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,385 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,460 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,461 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,537 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,539 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,611 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,695 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,695 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,774 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,774 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,855 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,856 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:41,953 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,049 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,050 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,050 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,135 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,136 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,136 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,224 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,224 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,305 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,394 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,395 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,395 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,484 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,485 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,618 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,619 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,728 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,728 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,729 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,824 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,825 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:42,943 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,046 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,047 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,162 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,269 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,270 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,375 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,376 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,494 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,725 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,726 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,834 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,835 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,962 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:43,962 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:44,095 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:44,272 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:44,272 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:44,497 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:44,498 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:44,636 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:44,758 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:44,759 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:44,759 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:44,826 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 10:40:44,826 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:40:44,827 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2019-08-05 10:40:44,827 INFO L454 AbstractCegarLoop]: Interpolant automaton has 53 states [2019-08-05 10:40:44,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2019-08-05 10:40:44,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=2653, Unknown=0, NotChecked=0, Total=2756 [2019-08-05 10:40:44,828 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 53 states. [2019-08-05 10:40:47,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:40:47,103 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2019-08-05 10:40:47,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2019-08-05 10:40:47,104 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 53 [2019-08-05 10:40:47,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:40:47,105 INFO L225 Difference]: With dead ends: 55 [2019-08-05 10:40:47,105 INFO L226 Difference]: Without dead ends: 55 [2019-08-05 10:40:47,106 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=103, Invalid=2653, Unknown=0, NotChecked=0, Total=2756 [2019-08-05 10:40:47,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-08-05 10:40:47,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-08-05 10:40:47,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-08-05 10:40:47,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2019-08-05 10:40:47,108 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 53 [2019-08-05 10:40:47,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:40:47,108 INFO L475 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2019-08-05 10:40:47,108 INFO L476 AbstractCegarLoop]: Interpolant automaton has 53 states. [2019-08-05 10:40:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2019-08-05 10:40:47,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-08-05 10:40:47,108 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:40:47,109 INFO L399 BasicCegarLoop]: trace histogram [51, 1, 1, 1] [2019-08-05 10:40:47,109 INFO L418 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:40:47,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:40:47,109 INFO L82 PathProgramCache]: Analyzing trace with hash 368739525, now seen corresponding path program 51 times [2019-08-05 10:40:47,110 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:40:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:40:47,184 WARN L254 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 105 conjunts are in the unsatisfiable core [2019-08-05 10:40:47,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:40:47,378 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:40:47,378 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,379 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,442 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,443 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,503 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,503 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,504 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,562 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,562 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,562 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,618 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,618 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,619 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,669 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,670 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,730 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,731 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,802 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,803 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,873 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,944 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,944 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:47,945 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,073 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,074 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,153 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,155 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,213 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,292 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,366 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,451 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,452 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,539 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,613 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,614 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,614 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,692 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,767 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,768 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,769 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,845 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,846 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:48,846 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,012 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 16 [2019-08-05 10:40:49,013 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,014 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,095 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,095 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,177 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,303 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,304 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,304 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,427 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,428 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,645 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 17 [2019-08-05 10:40:49,646 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,737 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,738 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,738 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,923 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:49,923 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,029 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,029 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,030 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,122 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,224 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,319 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,417 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,418 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,655 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,655 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,758 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,759 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,864 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,864 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,981 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,982 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:50,982 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,106 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,106 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,212 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,325 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,325 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,326 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,445 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,559 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,560 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,561 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,671 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,671 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,672 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,785 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,786 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,901 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:51,901 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:52,022 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:52,022 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:52,156 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:52,163 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:52,164 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:52,233 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 10:40:52,234 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:40:52,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2019-08-05 10:40:52,234 INFO L454 AbstractCegarLoop]: Interpolant automaton has 54 states [2019-08-05 10:40:52,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2019-08-05 10:40:52,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=2757, Unknown=0, NotChecked=0, Total=2862 [2019-08-05 10:40:52,235 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 54 states. [2019-08-05 10:40:54,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:40:54,706 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2019-08-05 10:40:54,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2019-08-05 10:40:54,706 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 54 [2019-08-05 10:40:54,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:40:54,707 INFO L225 Difference]: With dead ends: 56 [2019-08-05 10:40:54,707 INFO L226 Difference]: Without dead ends: 56 [2019-08-05 10:40:54,708 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=105, Invalid=2757, Unknown=0, NotChecked=0, Total=2862 [2019-08-05 10:40:54,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-08-05 10:40:54,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-08-05 10:40:54,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-08-05 10:40:54,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2019-08-05 10:40:54,709 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 54 [2019-08-05 10:40:54,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:40:54,710 INFO L475 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2019-08-05 10:40:54,710 INFO L476 AbstractCegarLoop]: Interpolant automaton has 54 states. [2019-08-05 10:40:54,710 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2019-08-05 10:40:54,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-08-05 10:40:54,710 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:40:54,710 INFO L399 BasicCegarLoop]: trace histogram [52, 1, 1, 1] [2019-08-05 10:40:54,710 INFO L418 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:40:54,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:40:54,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1453961234, now seen corresponding path program 52 times [2019-08-05 10:40:54,711 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:40:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:40:54,786 WARN L254 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 107 conjunts are in the unsatisfiable core [2019-08-05 10:40:54,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:40:54,842 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:54,842 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:54,901 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:54,902 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:54,902 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:54,951 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,011 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,072 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,134 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,135 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,267 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,318 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,318 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,319 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,378 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,378 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,379 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,437 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,438 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,438 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,500 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,571 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,643 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,716 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,716 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,717 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,785 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,785 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,857 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,858 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,969 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,969 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:55,970 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,039 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,040 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,113 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,113 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,191 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,192 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,281 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,282 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,377 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,377 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,465 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,465 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,561 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,652 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,749 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,750 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,750 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:56,940 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,033 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,239 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,239 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,329 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,431 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,432 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,433 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,524 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,524 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,525 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,620 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,620 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,717 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,718 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,718 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,825 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,930 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:57,930 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,041 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,159 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,160 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,285 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,286 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,400 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,519 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,633 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,756 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,756 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,870 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,871 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,871 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:58,988 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:59,178 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:59,179 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:59,295 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:59,408 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:59,409 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:59,612 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 17 [2019-08-05 10:40:59,612 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:59,613 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:40:59,756 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 10:40:59,757 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:40:59,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2019-08-05 10:40:59,757 INFO L454 AbstractCegarLoop]: Interpolant automaton has 55 states [2019-08-05 10:40:59,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2019-08-05 10:40:59,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=2863, Unknown=0, NotChecked=0, Total=2970 [2019-08-05 10:40:59,758 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 55 states. [2019-08-05 10:41:02,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:41:02,220 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2019-08-05 10:41:02,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-08-05 10:41:02,220 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 55 [2019-08-05 10:41:02,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:41:02,221 INFO L225 Difference]: With dead ends: 57 [2019-08-05 10:41:02,221 INFO L226 Difference]: Without dead ends: 57 [2019-08-05 10:41:02,222 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=107, Invalid=2863, Unknown=0, NotChecked=0, Total=2970 [2019-08-05 10:41:02,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-08-05 10:41:02,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-08-05 10:41:02,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-08-05 10:41:02,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2019-08-05 10:41:02,225 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 55 [2019-08-05 10:41:02,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:41:02,225 INFO L475 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2019-08-05 10:41:02,225 INFO L476 AbstractCegarLoop]: Interpolant automaton has 55 states. [2019-08-05 10:41:02,225 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2019-08-05 10:41:02,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-08-05 10:41:02,226 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:41:02,226 INFO L399 BasicCegarLoop]: trace histogram [53, 1, 1, 1] [2019-08-05 10:41:02,226 INFO L418 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:41:02,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:41:02,226 INFO L82 PathProgramCache]: Analyzing trace with hash -2123109915, now seen corresponding path program 53 times [2019-08-05 10:41:02,227 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:41:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:41:02,297 WARN L254 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 109 conjunts are in the unsatisfiable core [2019-08-05 10:41:02,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:41:02,352 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,406 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,407 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,471 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,527 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,527 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,579 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,639 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,702 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,767 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,897 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,897 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,961 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:02,962 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,024 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,082 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,231 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,232 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,232 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,300 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,301 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,370 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,371 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,371 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,436 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,437 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,438 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,593 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,594 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,671 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,671 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,746 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,746 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,747 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,827 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,827 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,906 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,907 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,907 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:03,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,079 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,079 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,080 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,159 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,160 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,160 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,338 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,339 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,429 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,430 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,518 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,519 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,519 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,608 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,808 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2019-08-05 10:41:04,809 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,809 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,810 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,927 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:04,928 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,022 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,132 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,133 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,235 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,236 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,339 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,340 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,341 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,442 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,442 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,543 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,544 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,665 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,665 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,666 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,791 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,792 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,916 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:05,916 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:06,043 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:06,044 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:06,166 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:06,280 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:06,281 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:06,399 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:06,400 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:06,534 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:06,535 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:06,652 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:06,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:06,768 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:06,879 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:07,003 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:07,004 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:07,140 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:07,141 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:07,219 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 10:41:07,219 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:41:07,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2019-08-05 10:41:07,220 INFO L454 AbstractCegarLoop]: Interpolant automaton has 56 states [2019-08-05 10:41:07,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2019-08-05 10:41:07,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=2971, Unknown=0, NotChecked=0, Total=3080 [2019-08-05 10:41:07,220 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand 56 states. [2019-08-05 10:41:09,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:41:09,801 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2019-08-05 10:41:09,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-08-05 10:41:09,802 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 56 [2019-08-05 10:41:09,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:41:09,803 INFO L225 Difference]: With dead ends: 58 [2019-08-05 10:41:09,803 INFO L226 Difference]: Without dead ends: 58 [2019-08-05 10:41:09,803 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=109, Invalid=2971, Unknown=0, NotChecked=0, Total=3080 [2019-08-05 10:41:09,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-08-05 10:41:09,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2019-08-05 10:41:09,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-08-05 10:41:09,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2019-08-05 10:41:09,805 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 56 [2019-08-05 10:41:09,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:41:09,805 INFO L475 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2019-08-05 10:41:09,806 INFO L476 AbstractCegarLoop]: Interpolant automaton has 56 states. [2019-08-05 10:41:09,806 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2019-08-05 10:41:09,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-08-05 10:41:09,806 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:41:09,806 INFO L399 BasicCegarLoop]: trace histogram [54, 1, 1, 1] [2019-08-05 10:41:09,806 INFO L418 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:41:09,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:41:09,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1391882546, now seen corresponding path program 54 times [2019-08-05 10:41:09,807 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:41:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:41:09,875 WARN L254 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 111 conjunts are in the unsatisfiable core [2019-08-05 10:41:09,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:41:09,943 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:09,943 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,025 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,101 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,161 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,162 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,222 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,222 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,223 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,275 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,276 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,276 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,327 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,327 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,328 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,436 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,489 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,489 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,616 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,617 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,680 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,680 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,681 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,744 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,745 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,827 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,894 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,895 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,895 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:10,971 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,048 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,048 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,049 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,121 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,121 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,122 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,191 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,315 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,315 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,316 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,391 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,391 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,392 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,464 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,641 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,641 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,642 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,724 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,725 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,808 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,900 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,901 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:11,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,089 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,089 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,090 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,174 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,174 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,272 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,273 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,273 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,368 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,457 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,458 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,557 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,557 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,558 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,650 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,755 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,858 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,859 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,859 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,964 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:12,964 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,078 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,078 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,079 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,288 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,289 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,289 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,409 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,410 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,411 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,536 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,536 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,646 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,647 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,647 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,759 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,873 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,874 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,993 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:13,994 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,117 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,252 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,380 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,381 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,381 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,500 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,622 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,756 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,757 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:14,914 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:15,058 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 10:41:15,058 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:41:15,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2019-08-05 10:41:15,058 INFO L454 AbstractCegarLoop]: Interpolant automaton has 57 states [2019-08-05 10:41:15,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2019-08-05 10:41:15,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=3081, Unknown=0, NotChecked=0, Total=3192 [2019-08-05 10:41:15,059 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 57 states. [2019-08-05 10:41:17,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:41:17,778 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2019-08-05 10:41:17,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-08-05 10:41:17,778 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 57 [2019-08-05 10:41:17,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:41:17,779 INFO L225 Difference]: With dead ends: 59 [2019-08-05 10:41:17,779 INFO L226 Difference]: Without dead ends: 59 [2019-08-05 10:41:17,780 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=111, Invalid=3081, Unknown=0, NotChecked=0, Total=3192 [2019-08-05 10:41:17,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-08-05 10:41:17,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-08-05 10:41:17,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-08-05 10:41:17,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2019-08-05 10:41:17,782 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 57 [2019-08-05 10:41:17,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:41:17,782 INFO L475 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2019-08-05 10:41:17,782 INFO L476 AbstractCegarLoop]: Interpolant automaton has 57 states. [2019-08-05 10:41:17,782 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2019-08-05 10:41:17,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-08-05 10:41:17,783 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:41:17,783 INFO L399 BasicCegarLoop]: trace histogram [55, 1, 1, 1] [2019-08-05 10:41:17,783 INFO L418 AbstractCegarLoop]: === Iteration 56 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:41:17,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:41:17,783 INFO L82 PathProgramCache]: Analyzing trace with hash -198670587, now seen corresponding path program 55 times [2019-08-05 10:41:17,784 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:41:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:41:17,853 WARN L254 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 113 conjunts are in the unsatisfiable core [2019-08-05 10:41:17,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:41:17,903 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:17,956 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:17,957 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:17,958 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,005 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,062 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,123 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,123 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,176 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,177 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,177 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,247 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,247 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,325 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,326 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,326 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,379 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,380 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,440 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,441 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,584 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,639 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,640 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,640 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,706 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,780 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,780 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,848 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,924 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:18,925 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,009 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,097 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,259 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,342 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,431 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,431 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,432 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,520 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,521 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,521 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,601 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,602 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,696 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,697 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,782 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,863 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,864 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,962 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:19,963 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,185 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 17 [2019-08-05 10:41:20,185 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,186 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,342 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,452 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,551 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,643 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,643 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,734 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,735 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,938 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,939 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:20,939 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,037 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,037 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,163 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,164 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,164 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,272 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,273 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,274 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,376 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,377 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,377 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,480 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,591 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,593 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,699 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,700 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,700 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,818 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,819 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,819 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,931 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,931 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:21,932 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,042 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,043 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,043 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,158 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,159 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,159 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,276 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,397 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,397 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,528 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,677 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,806 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,807 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,808 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:22,933 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:23,064 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:23,065 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:23,065 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:23,140 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 10:41:23,141 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:41:23,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2019-08-05 10:41:23,141 INFO L454 AbstractCegarLoop]: Interpolant automaton has 58 states [2019-08-05 10:41:23,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2019-08-05 10:41:23,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=3193, Unknown=0, NotChecked=0, Total=3306 [2019-08-05 10:41:23,141 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand 58 states. [2019-08-05 10:41:25,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:41:25,995 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2019-08-05 10:41:25,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2019-08-05 10:41:25,995 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 58 [2019-08-05 10:41:25,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:41:25,996 INFO L225 Difference]: With dead ends: 60 [2019-08-05 10:41:25,996 INFO L226 Difference]: Without dead ends: 60 [2019-08-05 10:41:25,997 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=113, Invalid=3193, Unknown=0, NotChecked=0, Total=3306 [2019-08-05 10:41:25,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-08-05 10:41:25,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2019-08-05 10:41:25,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-08-05 10:41:25,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2019-08-05 10:41:25,999 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 58 [2019-08-05 10:41:26,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:41:26,000 INFO L475 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2019-08-05 10:41:26,000 INFO L476 AbstractCegarLoop]: Interpolant automaton has 58 states. [2019-08-05 10:41:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2019-08-05 10:41:26,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-08-05 10:41:26,000 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:41:26,000 INFO L399 BasicCegarLoop]: trace histogram [56, 1, 1, 1] [2019-08-05 10:41:26,001 INFO L418 AbstractCegarLoop]: === Iteration 57 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:41:26,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:41:26,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1863805522, now seen corresponding path program 56 times [2019-08-05 10:41:26,002 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:41:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:41:26,064 WARN L254 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 115 conjunts are in the unsatisfiable core [2019-08-05 10:41:26,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:41:26,144 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,145 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,207 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,207 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,208 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,255 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,256 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,318 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,319 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,385 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,450 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,450 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,506 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,571 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,571 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,572 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,623 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,624 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,687 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,765 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,766 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,918 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:26,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,063 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,064 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,131 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,132 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,218 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,295 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,368 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,451 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,536 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,536 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,711 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,712 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,790 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,790 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,791 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,871 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:27,871 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,011 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,011 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,012 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,096 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,097 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,191 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,192 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,192 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,275 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,275 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,363 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,458 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,458 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,563 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,564 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,564 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,662 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,662 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,663 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,764 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,765 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,863 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,864 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:28,988 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:29,101 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:29,102 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:29,216 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:29,321 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:29,322 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:29,431 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:29,432 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:29,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:29,549 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:29,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:29,671 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:29,781 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:29,899 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,012 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,128 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,129 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,129 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,296 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 16 [2019-08-05 10:41:30,297 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,566 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,566 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,567 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,681 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,813 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,814 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,936 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,937 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:30,937 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:31,053 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:31,054 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:31,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:31,305 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:31,305 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:31,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:31,451 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:31,451 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:31,452 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:31,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:31,580 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:31,581 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:31,659 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 10:41:31,659 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:41:31,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2019-08-05 10:41:31,659 INFO L454 AbstractCegarLoop]: Interpolant automaton has 59 states [2019-08-05 10:41:31,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2019-08-05 10:41:31,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=3307, Unknown=0, NotChecked=0, Total=3422 [2019-08-05 10:41:31,660 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 59 states. [2019-08-05 10:41:34,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:41:34,489 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-08-05 10:41:34,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2019-08-05 10:41:34,489 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 59 [2019-08-05 10:41:34,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:41:34,490 INFO L225 Difference]: With dead ends: 61 [2019-08-05 10:41:34,490 INFO L226 Difference]: Without dead ends: 61 [2019-08-05 10:41:34,491 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=115, Invalid=3307, Unknown=0, NotChecked=0, Total=3422 [2019-08-05 10:41:34,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-08-05 10:41:34,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-08-05 10:41:34,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-08-05 10:41:34,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2019-08-05 10:41:34,493 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 59 [2019-08-05 10:41:34,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:41:34,494 INFO L475 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2019-08-05 10:41:34,494 INFO L476 AbstractCegarLoop]: Interpolant automaton has 59 states. [2019-08-05 10:41:34,494 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2019-08-05 10:41:34,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-08-05 10:41:34,494 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:41:34,495 INFO L399 BasicCegarLoop]: trace histogram [57, 1, 1, 1] [2019-08-05 10:41:34,495 INFO L418 AbstractCegarLoop]: === Iteration 58 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:41:34,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:41:34,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1943380955, now seen corresponding path program 57 times [2019-08-05 10:41:34,496 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:41:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:41:34,569 WARN L254 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 117 conjunts are in the unsatisfiable core [2019-08-05 10:41:34,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:41:34,771 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:41:34,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:34,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,491 WARN L188 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 16 [2019-08-05 10:41:35,492 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,493 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,493 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,608 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,608 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,684 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,684 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,739 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,740 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,794 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,794 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,795 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,846 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,912 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,912 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,913 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:35,971 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,037 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,102 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,172 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,230 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,305 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,460 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,538 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,621 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,622 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,694 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,695 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,767 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,768 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,769 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,843 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,843 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,930 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,930 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:36,931 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,022 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,023 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,106 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,201 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,202 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,326 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,326 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,327 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,413 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,414 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,414 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,499 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,499 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,684 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,685 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,775 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,776 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,777 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,867 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,868 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,868 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:37,966 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,068 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,069 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,163 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,164 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,286 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,286 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,287 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,401 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,402 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,402 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,506 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,507 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,507 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,606 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,606 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,711 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,712 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,712 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,820 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,820 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,821 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:38,963 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:39,075 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:39,076 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:39,196 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:39,310 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:39,424 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:39,553 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:39,674 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:39,797 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:39,798 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:39,917 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:39,918 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:40,057 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:40,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:40,306 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:40,510 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2019-08-05 10:41:40,510 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:40,511 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:40,790 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:40,790 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:41,019 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:41,153 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:41,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:41,154 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:41,231 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 10:41:41,232 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:41:41,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2019-08-05 10:41:41,232 INFO L454 AbstractCegarLoop]: Interpolant automaton has 60 states [2019-08-05 10:41:41,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2019-08-05 10:41:41,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=3423, Unknown=0, NotChecked=0, Total=3540 [2019-08-05 10:41:41,232 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand 60 states. [2019-08-05 10:41:44,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:41:44,168 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2019-08-05 10:41:44,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2019-08-05 10:41:44,168 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 60 [2019-08-05 10:41:44,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:41:44,169 INFO L225 Difference]: With dead ends: 62 [2019-08-05 10:41:44,169 INFO L226 Difference]: Without dead ends: 62 [2019-08-05 10:41:44,170 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=117, Invalid=3423, Unknown=0, NotChecked=0, Total=3540 [2019-08-05 10:41:44,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-08-05 10:41:44,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-08-05 10:41:44,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-08-05 10:41:44,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2019-08-05 10:41:44,173 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 60 [2019-08-05 10:41:44,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:41:44,173 INFO L475 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2019-08-05 10:41:44,174 INFO L476 AbstractCegarLoop]: Interpolant automaton has 60 states. [2019-08-05 10:41:44,174 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2019-08-05 10:41:44,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-08-05 10:41:44,174 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:41:44,174 INFO L399 BasicCegarLoop]: trace histogram [58, 1, 1, 1] [2019-08-05 10:41:44,175 INFO L418 AbstractCegarLoop]: === Iteration 59 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:41:44,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:41:44,175 INFO L82 PathProgramCache]: Analyzing trace with hash -115252082, now seen corresponding path program 58 times [2019-08-05 10:41:44,175 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:41:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:41:44,268 WARN L254 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 119 conjunts are in the unsatisfiable core [2019-08-05 10:41:44,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:41:44,312 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,313 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,371 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,371 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,435 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,492 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,551 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,612 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,613 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,613 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,665 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,665 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,666 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,731 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,732 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,789 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,857 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,927 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,927 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,928 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:44,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,049 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,050 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,050 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,114 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,114 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,115 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,249 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,329 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,330 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,330 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,402 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,483 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,484 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,557 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,559 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:45,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,034 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,034 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,116 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,210 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,211 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,308 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,309 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,411 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,411 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,501 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,682 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,773 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,975 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:46,976 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,084 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,084 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,353 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,354 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,465 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,577 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,578 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,792 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,793 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,793 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,898 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,898 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:47,899 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,000 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,001 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,001 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,120 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,235 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,350 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,460 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,461 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,461 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,608 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,721 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,722 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,722 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,854 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,855 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,855 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:48,967 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,081 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,205 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,205 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,351 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,463 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,463 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,590 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,714 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,715 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,715 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,845 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,989 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:49,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:50,071 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 10:41:50,072 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:41:50,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2019-08-05 10:41:50,072 INFO L454 AbstractCegarLoop]: Interpolant automaton has 61 states [2019-08-05 10:41:50,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2019-08-05 10:41:50,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=3541, Unknown=0, NotChecked=0, Total=3660 [2019-08-05 10:41:50,073 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 61 states. [2019-08-05 10:41:53,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:41:53,246 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2019-08-05 10:41:53,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2019-08-05 10:41:53,247 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 61 [2019-08-05 10:41:53,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:41:53,248 INFO L225 Difference]: With dead ends: 63 [2019-08-05 10:41:53,248 INFO L226 Difference]: Without dead ends: 63 [2019-08-05 10:41:53,248 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=119, Invalid=3541, Unknown=0, NotChecked=0, Total=3660 [2019-08-05 10:41:53,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-08-05 10:41:53,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2019-08-05 10:41:53,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-08-05 10:41:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2019-08-05 10:41:53,251 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 61 [2019-08-05 10:41:53,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:41:53,251 INFO L475 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2019-08-05 10:41:53,251 INFO L476 AbstractCegarLoop]: Interpolant automaton has 61 states. [2019-08-05 10:41:53,252 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2019-08-05 10:41:53,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-08-05 10:41:53,252 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:41:53,252 INFO L399 BasicCegarLoop]: trace histogram [59, 1, 1, 1] [2019-08-05 10:41:53,253 INFO L418 AbstractCegarLoop]: === Iteration 60 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:41:53,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:41:53,253 INFO L82 PathProgramCache]: Analyzing trace with hash 722168133, now seen corresponding path program 59 times [2019-08-05 10:41:53,253 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:41:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:41:53,318 WARN L254 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 121 conjunts are in the unsatisfiable core [2019-08-05 10:41:53,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:41:53,471 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-08-05 10:41:53,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,472 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,533 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,597 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,598 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,660 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,721 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,722 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,782 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,783 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,853 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,915 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,916 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,916 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,974 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:53,974 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,034 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,034 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,110 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,110 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,111 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,174 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,175 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,252 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,252 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,253 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,315 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,315 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,316 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,385 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,386 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,459 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,459 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,460 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,606 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,678 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,678 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,753 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,753 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,754 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,922 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:54,923 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,013 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,098 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,098 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,099 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,195 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,281 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,282 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,282 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,366 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,367 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,457 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,552 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,553 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,553 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,637 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,637 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,732 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,733 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:55,898 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 17 [2019-08-05 10:41:55,899 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,116 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2019-08-05 10:41:56,117 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,117 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,118 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,240 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,328 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,328 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,443 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,443 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,444 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,543 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,544 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,662 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,662 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,663 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,763 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,764 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,764 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,869 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,869 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:56,974 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,090 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,090 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,201 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,201 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,324 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,431 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,432 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,653 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,654 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,773 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,891 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,891 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:57,892 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,006 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,007 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,008 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,119 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,120 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,120 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,243 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,244 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,244 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,368 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,369 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,369 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,484 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,485 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,609 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,610 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,610 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,738 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,739 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,739 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,868 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,868 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,869 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,996 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:58,997 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:59,150 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:59,150 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:59,151 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:41:59,230 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 10:41:59,230 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:41:59,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2019-08-05 10:41:59,231 INFO L454 AbstractCegarLoop]: Interpolant automaton has 62 states [2019-08-05 10:41:59,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2019-08-05 10:41:59,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=3661, Unknown=0, NotChecked=0, Total=3782 [2019-08-05 10:41:59,231 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 62 states. [2019-08-05 10:42:02,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:42:02,470 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2019-08-05 10:42:02,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2019-08-05 10:42:02,470 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 62 [2019-08-05 10:42:02,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:42:02,471 INFO L225 Difference]: With dead ends: 64 [2019-08-05 10:42:02,471 INFO L226 Difference]: Without dead ends: 64 [2019-08-05 10:42:02,472 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=121, Invalid=3661, Unknown=0, NotChecked=0, Total=3782 [2019-08-05 10:42:02,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-08-05 10:42:02,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2019-08-05 10:42:02,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-08-05 10:42:02,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2019-08-05 10:42:02,473 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 62 [2019-08-05 10:42:02,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:42:02,474 INFO L475 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2019-08-05 10:42:02,474 INFO L476 AbstractCegarLoop]: Interpolant automaton has 62 states. [2019-08-05 10:42:02,474 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2019-08-05 10:42:02,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-08-05 10:42:02,475 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:42:02,475 INFO L399 BasicCegarLoop]: trace histogram [60, 1, 1, 1] [2019-08-05 10:42:02,475 INFO L418 AbstractCegarLoop]: === Iteration 61 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:42:02,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:42:02,475 INFO L82 PathProgramCache]: Analyzing trace with hash 912391022, now seen corresponding path program 60 times [2019-08-05 10:42:02,476 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:42:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:42:02,578 WARN L254 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 123 conjunts are in the unsatisfiable core [2019-08-05 10:42:02,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:42:02,669 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:02,669 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:02,729 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:02,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:02,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:02,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:02,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:02,837 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:02,889 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:02,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:02,890 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:02,944 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,005 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,071 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,071 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,072 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,126 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,189 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,256 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,324 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,380 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,381 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,381 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,444 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,444 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,519 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,520 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,520 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,584 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,662 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,662 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,748 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,749 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,914 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,998 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:03,999 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,000 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,204 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,205 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,281 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,282 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,283 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,356 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,357 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,357 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,457 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,544 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,545 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,545 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,627 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,704 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,704 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,705 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,793 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,794 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,883 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,884 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,995 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,995 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:04,996 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:05,087 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:05,088 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:05,088 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:05,185 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:05,288 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:05,289 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:05,389 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:07,285 WARN L188 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2019-08-05 10:42:07,286 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,026 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,027 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,138 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,139 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,139 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,357 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,357 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,471 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,591 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,592 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,705 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,705 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,827 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,950 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:08,951 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,066 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,183 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,183 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,184 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,293 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,293 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,294 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,423 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,424 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,680 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,803 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,803 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,804 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,926 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:09,926 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,050 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,051 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,051 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,198 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,198 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,199 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,320 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,320 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,321 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,460 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,461 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,461 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,591 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,724 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,724 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,725 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,855 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,855 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,856 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:10,940 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 10:42:10,940 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:42:10,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2019-08-05 10:42:10,941 INFO L454 AbstractCegarLoop]: Interpolant automaton has 63 states [2019-08-05 10:42:10,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2019-08-05 10:42:10,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=3783, Unknown=0, NotChecked=0, Total=3906 [2019-08-05 10:42:10,941 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 63 states. [2019-08-05 10:42:14,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:42:14,311 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2019-08-05 10:42:14,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2019-08-05 10:42:14,312 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 63 [2019-08-05 10:42:14,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:42:14,312 INFO L225 Difference]: With dead ends: 65 [2019-08-05 10:42:14,313 INFO L226 Difference]: Without dead ends: 65 [2019-08-05 10:42:14,313 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=123, Invalid=3783, Unknown=0, NotChecked=0, Total=3906 [2019-08-05 10:42:14,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-08-05 10:42:14,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-08-05 10:42:14,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-08-05 10:42:14,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2019-08-05 10:42:14,316 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 63 [2019-08-05 10:42:14,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:42:14,316 INFO L475 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2019-08-05 10:42:14,316 INFO L476 AbstractCegarLoop]: Interpolant automaton has 63 states. [2019-08-05 10:42:14,316 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2019-08-05 10:42:14,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-08-05 10:42:14,317 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:42:14,317 INFO L399 BasicCegarLoop]: trace histogram [61, 1, 1, 1] [2019-08-05 10:42:14,317 INFO L418 AbstractCegarLoop]: === Iteration 62 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:42:14,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:42:14,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1780634011, now seen corresponding path program 61 times [2019-08-05 10:42:14,318 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:42:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:42:14,393 WARN L254 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 125 conjunts are in the unsatisfiable core [2019-08-05 10:42:14,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:42:14,428 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,429 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,489 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,490 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,490 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,539 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,606 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,606 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,607 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,658 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,727 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,727 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,728 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,798 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,798 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,855 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,856 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,925 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,925 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,926 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,984 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:14,985 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,060 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,060 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,061 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,120 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,121 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,121 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,244 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,323 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,324 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,391 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,467 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,468 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,542 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,543 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,610 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,610 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,611 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,682 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,683 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,684 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,763 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,764 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,846 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,847 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,940 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,941 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:15,942 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:16,016 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:16,017 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:16,097 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:16,098 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:16,098 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:16,181 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:16,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:16,182 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:16,262 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:16,420 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:16,420 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:16,420 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:42:16,611 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms Received shutdown request... [2019-08-05 10:42:16,663 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2019-08-05 10:42:16,664 WARN L544 AbstractCegarLoop]: Verification canceled [2019-08-05 10:42:16,667 WARN L223 ceAbstractionStarter]: Timeout [2019-08-05 10:42:16,668 INFO L202 PluginConnector]: Adding new model Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:42:16 BoogieIcfgContainer [2019-08-05 10:42:16,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:42:16,669 INFO L168 Benchmark]: Toolchain (without parser) took 249296.75 ms. Allocated memory was 134.2 MB in the beginning and 178.8 MB in the end (delta: 44.6 MB). Free memory was 110.4 MB in the beginning and 99.2 MB in the end (delta: 11.2 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. [2019-08-05 10:42:16,670 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.27 ms. Allocated memory is still 134.2 MB. Free memory was 111.7 MB in the beginning and 111.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 10:42:16,671 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.33 ms. Allocated memory is still 134.2 MB. Free memory was 110.4 MB in the beginning and 108.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-08-05 10:42:16,671 INFO L168 Benchmark]: Boogie Preprocessor took 26.55 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 107.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2019-08-05 10:42:16,672 INFO L168 Benchmark]: RCFGBuilder took 527.27 ms. Allocated memory is still 134.2 MB. Free memory was 107.3 MB in the beginning and 92.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:42:16,672 INFO L168 Benchmark]: TraceAbstraction took 248702.21 ms. Allocated memory was 134.2 MB in the beginning and 178.8 MB in the end (delta: 44.6 MB). Free memory was 91.9 MB in the beginning and 99.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 37.2 MB. Max. memory is 7.1 GB. [2019-08-05 10:42:16,675 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 0.27 ms. Allocated memory is still 134.2 MB. Free memory was 111.7 MB in the beginning and 111.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.33 ms. Allocated memory is still 134.2 MB. Free memory was 110.4 MB in the beginning and 108.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.55 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 107.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 527.27 ms. Allocated memory is still 134.2 MB. Free memory was 107.3 MB in the beginning and 92.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 248702.21 ms. Allocated memory was 134.2 MB in the beginning and 178.8 MB in the end (delta: 44.6 MB). Free memory was 91.9 MB in the beginning and 99.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 37.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 41]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 41). Cancelled while BasicCegarLoop was analyzing trace of length 65 with TraceHistMax 61,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 31 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. TIMEOUT Result, 248.6s OverallTime, 62 OverallIterations, 61 TraceHistogramMax, 71.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 185 SDtfs, 2 SDslu, 123 SDs, 0 SdLazy, 83085 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 60.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1952 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1891 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 167.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=61, 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: 0.1s AutomataMinimizationTime, 61 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 171.8s InterpolantComputationTime, 2013 NumberOfCodeBlocks, 2013 NumberOfCodeBlocksAsserted, 61 NumberOfCheckSat, 1952 ConstructedInterpolants, 0 QuantifiedInterpolants, 1632728 SizeOfPredicates, 243 NumberOfNonLiveVariables, 4270 ConjunctsInSsa, 3844 ConjunctsInUnsatCore, 61 InterpolantComputations, 1 PerfectInterpolantSequences, 0/37820 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown