java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:33:50,384 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:33:50,385 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:33:50,398 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:33:50,399 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:33:50,400 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:33:50,401 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:33:50,403 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:33:50,404 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:33:50,405 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:33:50,406 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:33:50,406 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:33:50,407 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:33:50,408 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:33:50,409 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:33:50,410 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:33:50,411 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:33:50,413 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:33:50,415 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:33:50,416 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:33:50,417 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:33:50,418 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:33:50,421 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:33:50,422 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:33:50,422 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:33:50,423 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:33:50,426 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:33:50,429 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:33:50,430 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:33:50,431 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:33:50,432 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:33:50,432 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 16:33:50,432 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 16:33:50,435 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 16:33:50,437 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 16:33:50,438 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 16:33:50,438 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:33:50,455 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:33:50,456 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:33:50,457 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:33:50,461 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:33:50,461 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:33:50,461 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:33:50,462 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:33:50,462 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:33:50,462 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:33:50,462 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:33:50,463 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:33:50,463 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:33:50,463 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:33:50,464 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:33:50,464 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:33:50,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:33:50,553 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:33:50,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:33:50,562 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:33:50,563 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:33:50,564 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl [2018-10-14 16:33:50,564 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl' [2018-10-14 16:33:50,638 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:33:50,639 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:33:50,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:33:50,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:33:50,640 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:33:50,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:50" (1/1) ... [2018-10-14 16:33:50,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:50" (1/1) ... [2018-10-14 16:33:50,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:50" (1/1) ... [2018-10-14 16:33:50,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:50" (1/1) ... [2018-10-14 16:33:50,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:50" (1/1) ... [2018-10-14 16:33:50,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:50" (1/1) ... [2018-10-14 16:33:50,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:50" (1/1) ... [2018-10-14 16:33:50,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:33:50,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:33:50,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:33:50,737 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:33:50,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:50" (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 [2018-10-14 16:33:50,800 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:33:50,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:33:50,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:33:51,654 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:33:51,655 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:33:51 BoogieIcfgContainer [2018-10-14 16:33:51,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:33:51,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:33:51,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:33:51,661 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:33:51,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:33:50" (1/2) ... [2018-10-14 16:33:51,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9b9633 and model type alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:33:51, skipping insertion in model container [2018-10-14 16:33:51,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:33:51" (2/2) ... [2018-10-14 16:33:51,665 INFO L112 eAbstractionObserver]: Analyzing ICFG alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl [2018-10-14 16:33:51,675 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:33:51,684 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:33:51,701 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:33:51,730 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:33:51,731 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:33:51,731 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:33:51,731 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:33:51,731 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:33:51,731 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:33:51,732 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:33:51,732 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:33:51,732 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:33:51,754 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2018-10-14 16:33:51,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-14 16:33:51,764 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:51,765 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:33:51,766 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:51,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:51,773 INFO L82 PathProgramCache]: Analyzing trace with hash 2104295825, now seen corresponding path program 1 times [2018-10-14 16:33:51,837 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:52,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:33:52,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:33:52,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-14 16:33:52,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-14 16:33:52,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-14 16:33:52,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-10-14 16:33:52,351 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 9 states. [2018-10-14 16:33:52,941 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-10-14 16:33:53,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:33:53,774 INFO L93 Difference]: Finished difference Result 221 states and 225 transitions. [2018-10-14 16:33:53,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-14 16:33:53,777 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-10-14 16:33:53,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:33:53,798 INFO L225 Difference]: With dead ends: 221 [2018-10-14 16:33:53,798 INFO L226 Difference]: Without dead ends: 221 [2018-10-14 16:33:53,805 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-10-14 16:33:53,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-10-14 16:33:53,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 133. [2018-10-14 16:33:53,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-10-14 16:33:53,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 136 transitions. [2018-10-14 16:33:53,869 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 136 transitions. Word has length 37 [2018-10-14 16:33:53,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:33:53,870 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 136 transitions. [2018-10-14 16:33:53,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-14 16:33:53,870 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 136 transitions. [2018-10-14 16:33:53,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-14 16:33:53,873 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:53,874 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:33:53,874 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:53,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:53,875 INFO L82 PathProgramCache]: Analyzing trace with hash -34960895, now seen corresponding path program 1 times [2018-10-14 16:33:53,876 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:54,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:33:54,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:33:54,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-14 16:33:54,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-14 16:33:54,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-14 16:33:54,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-14 16:33:54,181 INFO L87 Difference]: Start difference. First operand 133 states and 136 transitions. Second operand 9 states. [2018-10-14 16:33:54,548 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2018-10-14 16:33:55,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:33:55,026 INFO L93 Difference]: Finished difference Result 289 states and 294 transitions. [2018-10-14 16:33:55,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-14 16:33:55,027 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2018-10-14 16:33:55,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:33:55,030 INFO L225 Difference]: With dead ends: 289 [2018-10-14 16:33:55,031 INFO L226 Difference]: Without dead ends: 257 [2018-10-14 16:33:55,032 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2018-10-14 16:33:55,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-10-14 16:33:55,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 119. [2018-10-14 16:33:55,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-10-14 16:33:55,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2018-10-14 16:33:55,044 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 69 [2018-10-14 16:33:55,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:33:55,044 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2018-10-14 16:33:55,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-14 16:33:55,044 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2018-10-14 16:33:55,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-10-14 16:33:55,047 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:55,047 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:33:55,048 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:55,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:55,048 INFO L82 PathProgramCache]: Analyzing trace with hash 2004966493, now seen corresponding path program 1 times [2018-10-14 16:33:55,049 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:33:55,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:33:55,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-14 16:33:55,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-14 16:33:55,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-14 16:33:55,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-14 16:33:55,138 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand 3 states. [2018-10-14 16:33:55,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:33:55,211 INFO L93 Difference]: Finished difference Result 187 states and 190 transitions. [2018-10-14 16:33:55,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-14 16:33:55,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2018-10-14 16:33:55,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:33:55,214 INFO L225 Difference]: With dead ends: 187 [2018-10-14 16:33:55,214 INFO L226 Difference]: Without dead ends: 187 [2018-10-14 16:33:55,215 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-14 16:33:55,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-10-14 16:33:55,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 153. [2018-10-14 16:33:55,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-10-14 16:33:55,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 156 transitions. [2018-10-14 16:33:55,225 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 156 transitions. Word has length 80 [2018-10-14 16:33:55,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:33:55,225 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 156 transitions. [2018-10-14 16:33:55,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-14 16:33:55,226 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 156 transitions. [2018-10-14 16:33:55,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-10-14 16:33:55,229 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:55,229 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:33:55,229 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:55,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:55,230 INFO L82 PathProgramCache]: Analyzing trace with hash 491392829, now seen corresponding path program 1 times [2018-10-14 16:33:55,231 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:55,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:33:55,515 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:33:55,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-14 16:33:55,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-14 16:33:55,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-14 16:33:55,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-10-14 16:33:55,517 INFO L87 Difference]: Start difference. First operand 153 states and 156 transitions. Second operand 11 states. [2018-10-14 16:33:56,311 WARN L179 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2018-10-14 16:33:56,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:33:56,970 INFO L93 Difference]: Finished difference Result 361 states and 366 transitions. [2018-10-14 16:33:56,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-14 16:33:56,971 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2018-10-14 16:33:56,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:33:56,974 INFO L225 Difference]: With dead ends: 361 [2018-10-14 16:33:56,975 INFO L226 Difference]: Without dead ends: 361 [2018-10-14 16:33:56,975 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2018-10-14 16:33:56,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2018-10-14 16:33:56,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 210. [2018-10-14 16:33:56,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-10-14 16:33:56,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 214 transitions. [2018-10-14 16:33:56,996 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 214 transitions. Word has length 80 [2018-10-14 16:33:56,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:33:56,997 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 214 transitions. [2018-10-14 16:33:56,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-14 16:33:56,998 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 214 transitions. [2018-10-14 16:33:57,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-14 16:33:57,008 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:33:57,008 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:33:57,009 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:33:57,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:33:57,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1799743405, now seen corresponding path program 1 times [2018-10-14 16:33:57,010 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:33:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:33:58,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:33:58,591 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:33:58,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-14 16:33:58,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-14 16:33:58,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-14 16:33:58,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=745, Unknown=0, NotChecked=0, Total=812 [2018-10-14 16:33:58,593 INFO L87 Difference]: Start difference. First operand 210 states and 214 transitions. Second operand 29 states. [2018-10-14 16:34:00,130 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2018-10-14 16:34:00,321 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-10-14 16:34:00,610 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2018-10-14 16:34:00,959 WARN L179 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2018-10-14 16:34:01,386 WARN L179 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2018-10-14 16:34:02,961 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2018-10-14 16:34:03,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:34:03,944 INFO L93 Difference]: Finished difference Result 334 states and 339 transitions. [2018-10-14 16:34:03,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-10-14 16:34:03,946 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 112 [2018-10-14 16:34:03,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:34:03,948 INFO L225 Difference]: With dead ends: 334 [2018-10-14 16:34:03,949 INFO L226 Difference]: Without dead ends: 334 [2018-10-14 16:34:03,951 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=538, Invalid=3002, Unknown=0, NotChecked=0, Total=3540 [2018-10-14 16:34:03,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-10-14 16:34:03,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 242. [2018-10-14 16:34:03,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-10-14 16:34:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 246 transitions. [2018-10-14 16:34:03,959 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 246 transitions. Word has length 112 [2018-10-14 16:34:03,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:34:03,959 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 246 transitions. [2018-10-14 16:34:03,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-14 16:34:03,959 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 246 transitions. [2018-10-14 16:34:03,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-14 16:34:03,962 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:34:03,962 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:34:03,962 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:34:03,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:34:03,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1739914033, now seen corresponding path program 1 times [2018-10-14 16:34:03,964 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:34:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:34:04,337 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:34:04,337 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:34:04,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-10-14 16:34:04,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-14 16:34:04,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-14 16:34:04,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2018-10-14 16:34:04,339 INFO L87 Difference]: Start difference. First operand 242 states and 246 transitions. Second operand 16 states. [2018-10-14 16:34:05,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:34:05,807 INFO L93 Difference]: Finished difference Result 501 states and 509 transitions. [2018-10-14 16:34:05,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-10-14 16:34:05,808 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 123 [2018-10-14 16:34:05,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:34:05,810 INFO L225 Difference]: With dead ends: 501 [2018-10-14 16:34:05,810 INFO L226 Difference]: Without dead ends: 501 [2018-10-14 16:34:05,811 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2018-10-14 16:34:05,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2018-10-14 16:34:05,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 337. [2018-10-14 16:34:05,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-10-14 16:34:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 344 transitions. [2018-10-14 16:34:05,821 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 344 transitions. Word has length 123 [2018-10-14 16:34:05,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:34:05,822 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 344 transitions. [2018-10-14 16:34:05,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-14 16:34:05,822 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 344 transitions. [2018-10-14 16:34:05,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-14 16:34:05,825 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:34:05,825 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:34:05,826 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:34:05,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:34:05,826 INFO L82 PathProgramCache]: Analyzing trace with hash 574881821, now seen corresponding path program 2 times [2018-10-14 16:34:05,827 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:34:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:34:05,929 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-14 16:34:05,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:34:05,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-14 16:34:05,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-14 16:34:05,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-14 16:34:05,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-14 16:34:05,931 INFO L87 Difference]: Start difference. First operand 337 states and 344 transitions. Second operand 3 states. [2018-10-14 16:34:06,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:34:06,047 INFO L93 Difference]: Finished difference Result 323 states and 326 transitions. [2018-10-14 16:34:06,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-14 16:34:06,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2018-10-14 16:34:06,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:34:06,049 INFO L225 Difference]: With dead ends: 323 [2018-10-14 16:34:06,049 INFO L226 Difference]: Without dead ends: 269 [2018-10-14 16:34:06,050 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-14 16:34:06,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2018-10-14 16:34:06,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 256. [2018-10-14 16:34:06,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2018-10-14 16:34:06,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 259 transitions. [2018-10-14 16:34:06,056 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 259 transitions. Word has length 144 [2018-10-14 16:34:06,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:34:06,056 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 259 transitions. [2018-10-14 16:34:06,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-14 16:34:06,056 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 259 transitions. [2018-10-14 16:34:06,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-10-14 16:34:06,058 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:34:06,059 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:34:06,059 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:34:06,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:34:06,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1998322783, now seen corresponding path program 1 times [2018-10-14 16:34:06,060 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:34:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:34:07,952 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2018-10-14 16:34:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:34:10,045 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:34:10,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-10-14 16:34:10,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-10-14 16:34:10,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-10-14 16:34:10,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=2003, Unknown=0, NotChecked=0, Total=2162 [2018-10-14 16:34:10,047 INFO L87 Difference]: Start difference. First operand 256 states and 259 transitions. Second operand 47 states. [2018-10-14 16:34:11,165 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-10-14 16:34:11,375 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2018-10-14 16:34:12,136 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2018-10-14 16:34:12,429 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2018-10-14 16:34:12,685 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2018-10-14 16:34:13,052 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2018-10-14 16:34:13,335 WARN L179 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2018-10-14 16:34:13,776 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 85 [2018-10-14 16:34:14,114 WARN L179 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2018-10-14 16:34:14,284 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2018-10-14 16:34:14,419 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2018-10-14 16:34:14,766 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2018-10-14 16:34:15,075 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2018-10-14 16:34:15,232 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-10-14 16:34:16,003 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2018-10-14 16:34:16,497 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2018-10-14 16:34:17,189 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-10-14 16:34:17,841 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-10-14 16:34:18,351 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2018-10-14 16:34:18,632 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2018-10-14 16:34:18,832 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2018-10-14 16:34:19,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:34:19,428 INFO L93 Difference]: Finished difference Result 303 states and 305 transitions. [2018-10-14 16:34:19,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-10-14 16:34:19,428 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 155 [2018-10-14 16:34:19,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:34:19,431 INFO L225 Difference]: With dead ends: 303 [2018-10-14 16:34:19,431 INFO L226 Difference]: Without dead ends: 257 [2018-10-14 16:34:19,434 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1941 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=908, Invalid=7282, Unknown=0, NotChecked=0, Total=8190 [2018-10-14 16:34:19,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-10-14 16:34:19,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 242. [2018-10-14 16:34:19,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-10-14 16:34:19,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 244 transitions. [2018-10-14 16:34:19,440 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 244 transitions. Word has length 155 [2018-10-14 16:34:19,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:34:19,441 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 244 transitions. [2018-10-14 16:34:19,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-10-14 16:34:19,441 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 244 transitions. [2018-10-14 16:34:19,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-10-14 16:34:19,443 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:34:19,443 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:34:19,443 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:34:19,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:34:19,444 INFO L82 PathProgramCache]: Analyzing trace with hash -220048995, now seen corresponding path program 2 times [2018-10-14 16:34:19,444 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:34:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:34:20,085 WARN L179 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-14 16:34:20,312 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-14 16:34:21,060 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 23 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:34:21,060 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:34:21,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-10-14 16:34:21,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-14 16:34:21,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-14 16:34:21,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2018-10-14 16:34:21,061 INFO L87 Difference]: Start difference. First operand 242 states and 244 transitions. Second operand 22 states. [2018-10-14 16:34:23,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:34:23,016 INFO L93 Difference]: Finished difference Result 254 states and 255 transitions. [2018-10-14 16:34:23,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-10-14 16:34:23,016 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 166 [2018-10-14 16:34:23,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:34:23,018 INFO L225 Difference]: With dead ends: 254 [2018-10-14 16:34:23,019 INFO L226 Difference]: Without dead ends: 254 [2018-10-14 16:34:23,020 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=483, Invalid=2067, Unknown=0, NotChecked=0, Total=2550 [2018-10-14 16:34:23,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2018-10-14 16:34:23,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 242. [2018-10-14 16:34:23,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-10-14 16:34:23,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 243 transitions. [2018-10-14 16:34:23,025 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 243 transitions. Word has length 166 [2018-10-14 16:34:23,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:34:23,026 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 243 transitions. [2018-10-14 16:34:23,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-10-14 16:34:23,026 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 243 transitions. [2018-10-14 16:34:23,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-10-14 16:34:23,028 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:34:23,028 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:34:23,028 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:34:23,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:34:23,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1338201587, now seen corresponding path program 2 times [2018-10-14 16:34:23,030 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:34:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:34:25,861 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:34:25,862 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:34:25,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2018-10-14 16:34:25,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-10-14 16:34:25,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-10-14 16:34:25,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=2141, Unknown=0, NotChecked=0, Total=2256 [2018-10-14 16:34:25,864 INFO L87 Difference]: Start difference. First operand 242 states and 243 transitions. Second operand 48 states. [2018-10-14 16:34:26,796 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 25 [2018-10-14 16:34:28,341 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 47 [2018-10-14 16:34:29,131 WARN L179 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 56 [2018-10-14 16:34:29,393 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 60 [2018-10-14 16:34:29,782 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 66 [2018-10-14 16:34:30,136 WARN L179 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 70 [2018-10-14 16:34:30,486 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 82 [2018-10-14 16:34:30,836 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 78 [2018-10-14 16:34:31,161 WARN L179 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 82 [2018-10-14 16:34:31,515 WARN L179 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 84 [2018-10-14 16:34:31,876 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2018-10-14 16:34:32,886 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2018-10-14 16:34:33,091 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2018-10-14 16:34:33,554 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2018-10-14 16:34:33,785 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2018-10-14 16:34:34,418 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 73 [2018-10-14 16:34:34,796 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 76 [2018-10-14 16:34:35,077 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2018-10-14 16:34:35,283 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2018-10-14 16:34:35,446 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2018-10-14 16:34:36,003 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2018-10-14 16:34:36,354 WARN L179 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 100 [2018-10-14 16:34:36,661 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95 [2018-10-14 16:34:38,765 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-10-14 16:34:39,056 WARN L179 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2018-10-14 16:34:40,104 WARN L179 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2018-10-14 16:34:40,573 WARN L179 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2018-10-14 16:34:40,976 WARN L179 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2018-10-14 16:34:41,337 WARN L179 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 102 [2018-10-14 16:34:41,708 WARN L179 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 107 [2018-10-14 16:34:41,971 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2018-10-14 16:34:42,208 WARN L179 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2018-10-14 16:34:42,472 WARN L179 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2018-10-14 16:34:42,818 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2018-10-14 16:34:43,076 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2018-10-14 16:34:43,529 WARN L179 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2018-10-14 16:34:43,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:34:43,722 INFO L93 Difference]: Finished difference Result 346 states and 347 transitions. [2018-10-14 16:34:43,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-10-14 16:34:43,722 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 198 [2018-10-14 16:34:43,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:34:43,725 INFO L225 Difference]: With dead ends: 346 [2018-10-14 16:34:43,725 INFO L226 Difference]: Without dead ends: 300 [2018-10-14 16:34:43,729 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3302 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=1405, Invalid=12401, Unknown=0, NotChecked=0, Total=13806 [2018-10-14 16:34:43,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2018-10-14 16:34:43,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 285. [2018-10-14 16:34:43,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2018-10-14 16:34:43,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 286 transitions. [2018-10-14 16:34:43,736 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 286 transitions. Word has length 198 [2018-10-14 16:34:43,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:34:43,736 INFO L481 AbstractCegarLoop]: Abstraction has 285 states and 286 transitions. [2018-10-14 16:34:43,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-10-14 16:34:43,737 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 286 transitions. [2018-10-14 16:34:43,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-10-14 16:34:43,739 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:34:43,740 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:34:43,740 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:34:43,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:34:43,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1185908033, now seen corresponding path program 3 times [2018-10-14 16:34:43,741 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:34:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:34:44,595 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-14 16:34:47,079 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-10-14 16:34:54,292 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:34:54,292 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:34:54,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2018-10-14 16:34:54,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 81 states [2018-10-14 16:34:54,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2018-10-14 16:34:54,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=6147, Unknown=0, NotChecked=0, Total=6480 [2018-10-14 16:34:54,295 INFO L87 Difference]: Start difference. First operand 285 states and 286 transitions. Second operand 81 states. [2018-10-14 16:34:55,999 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 39 [2018-10-14 16:34:56,400 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 45 [2018-10-14 16:34:56,737 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 37 [2018-10-14 16:34:57,045 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 22 [2018-10-14 16:34:57,410 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 25 [2018-10-14 16:34:57,782 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 28 [2018-10-14 16:34:58,100 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 30 [2018-10-14 16:34:58,522 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 37 [2018-10-14 16:34:58,939 WARN L179 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 45 [2018-10-14 16:34:59,382 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 52 [2018-10-14 16:34:59,964 WARN L179 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 67 [2018-10-14 16:35:00,513 WARN L179 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 69 [2018-10-14 16:35:01,275 WARN L179 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 83 [2018-10-14 16:35:02,448 WARN L179 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 90 [2018-10-14 16:35:03,436 WARN L179 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 96 [2018-10-14 16:35:04,297 WARN L179 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 100 [2018-10-14 16:35:05,219 WARN L179 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 135 [2018-10-14 16:35:06,084 WARN L179 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 131 [2018-10-14 16:35:06,959 WARN L179 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 141 [2018-10-14 16:35:07,992 WARN L179 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 146 [2018-10-14 16:35:08,846 WARN L179 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 145 [2018-10-14 16:35:09,462 WARN L179 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 79 [2018-10-14 16:35:10,264 WARN L179 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 94 [2018-10-14 16:35:10,937 WARN L179 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 86 [2018-10-14 16:35:11,210 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2018-10-14 16:35:11,566 WARN L179 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2018-10-14 16:35:11,970 WARN L179 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2018-10-14 16:35:12,332 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2018-10-14 16:35:13,029 WARN L179 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2018-10-14 16:35:13,657 WARN L179 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 79 [2018-10-14 16:35:14,343 WARN L179 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 87 [2018-10-14 16:35:15,214 WARN L179 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 102 [2018-10-14 16:35:16,198 WARN L179 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 117 [2018-10-14 16:35:17,244 WARN L179 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 122 [2018-10-14 16:35:17,842 WARN L179 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2018-10-14 16:35:18,483 WARN L179 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 112 [2018-10-14 16:35:19,260 WARN L179 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 141 [2018-10-14 16:35:20,098 WARN L179 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 140 [2018-10-14 16:35:21,115 WARN L179 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 153 [2018-10-14 16:35:22,142 WARN L179 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 166 [2018-10-14 16:35:22,799 WARN L179 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 120 [2018-10-14 16:35:23,415 WARN L179 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2018-10-14 16:35:23,957 WARN L179 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 97 [2018-10-14 16:35:24,570 WARN L179 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 101 [2018-10-14 16:35:25,132 WARN L179 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 103 [2018-10-14 16:35:26,389 WARN L179 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 177 [2018-10-14 16:35:27,497 WARN L179 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 180 [2018-10-14 16:35:28,501 WARN L179 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 168 [2018-10-14 16:35:28,769 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2018-10-14 16:35:29,051 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2018-10-14 16:35:29,380 WARN L179 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2018-10-14 16:35:29,712 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2018-10-14 16:35:30,793 WARN L179 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 182 [2018-10-14 16:35:31,887 WARN L179 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 187 [2018-10-14 16:35:32,945 WARN L179 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 190 [2018-10-14 16:35:34,142 WARN L179 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 191 [2018-10-14 16:35:34,636 WARN L179 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2018-10-14 16:35:35,082 WARN L179 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 107 [2018-10-14 16:35:35,462 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2018-10-14 16:35:36,613 WARN L179 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2018-10-14 16:35:37,345 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2018-10-14 16:35:37,636 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2018-10-14 16:35:37,943 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2018-10-14 16:35:38,419 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-10-14 16:35:38,677 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-10-14 16:35:40,442 WARN L179 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 160 [2018-10-14 16:35:41,286 WARN L179 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 146 [2018-10-14 16:35:41,744 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2018-10-14 16:35:42,067 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2018-10-14 16:35:42,308 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2018-10-14 16:35:42,624 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2018-10-14 16:35:42,982 WARN L179 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2018-10-14 16:35:43,467 WARN L179 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 86 [2018-10-14 16:35:44,303 WARN L179 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 162 [2018-10-14 16:35:44,788 WARN L179 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 97 [2018-10-14 16:35:45,365 WARN L179 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2018-10-14 16:35:45,807 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2018-10-14 16:35:46,214 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2018-10-14 16:35:46,719 WARN L179 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 120 [2018-10-14 16:35:47,257 WARN L179 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 117 [2018-10-14 16:35:48,121 WARN L179 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 161 [2018-10-14 16:35:48,928 WARN L179 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 125 [2018-10-14 16:35:49,597 WARN L179 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 135 [2018-10-14 16:35:50,380 WARN L179 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 151 [2018-10-14 16:35:50,732 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2018-10-14 16:35:51,609 WARN L179 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 161 [2018-10-14 16:35:51,909 WARN L179 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2018-10-14 16:35:52,771 WARN L179 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 166 [2018-10-14 16:35:53,201 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2018-10-14 16:35:53,575 WARN L179 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2018-10-14 16:35:54,049 WARN L179 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2018-10-14 16:35:54,964 WARN L179 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 148 [2018-10-14 16:35:55,830 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2018-10-14 16:35:56,879 WARN L179 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 138 [2018-10-14 16:35:57,232 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2018-10-14 16:35:57,922 WARN L179 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 131 [2018-10-14 16:35:57,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:35:57,935 INFO L93 Difference]: Finished difference Result 430 states and 432 transitions. [2018-10-14 16:35:57,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2018-10-14 16:35:57,936 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 241 [2018-10-14 16:35:57,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:35:57,939 INFO L225 Difference]: With dead ends: 430 [2018-10-14 16:35:57,939 INFO L226 Difference]: Without dead ends: 384 [2018-10-14 16:35:57,947 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 4 SyntacticMatches, 8 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8958 ImplicationChecksByTransitivity, 65.5s TimeCoverageRelationStatistics Valid=4178, Invalid=31354, Unknown=0, NotChecked=0, Total=35532 [2018-10-14 16:35:57,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-10-14 16:35:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 328. [2018-10-14 16:35:57,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-10-14 16:35:57,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 329 transitions. [2018-10-14 16:35:57,954 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 329 transitions. Word has length 241 [2018-10-14 16:35:57,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:35:57,955 INFO L481 AbstractCegarLoop]: Abstraction has 328 states and 329 transitions. [2018-10-14 16:35:57,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 81 states. [2018-10-14 16:35:57,955 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 329 transitions. [2018-10-14 16:35:57,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-10-14 16:35:57,959 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:35:57,959 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:35:57,959 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:35:57,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:35:57,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1449944173, now seen corresponding path program 4 times [2018-10-14 16:35:57,960 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:35:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:36:06,408 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 389 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:36:06,408 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:36:06,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [87] total 87 [2018-10-14 16:36:06,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 87 states [2018-10-14 16:36:06,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2018-10-14 16:36:06,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=7151, Unknown=0, NotChecked=0, Total=7482 [2018-10-14 16:36:06,410 INFO L87 Difference]: Start difference. First operand 328 states and 329 transitions. Second operand 87 states. [2018-10-14 16:36:09,834 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 45 [2018-10-14 16:36:10,286 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 59 [2018-10-14 16:36:10,963 WARN L179 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 70 [2018-10-14 16:36:11,403 WARN L179 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 76 [2018-10-14 16:36:12,057 WARN L179 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 82 [2018-10-14 16:36:12,545 WARN L179 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 86 [2018-10-14 16:36:13,035 WARN L179 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 96 [2018-10-14 16:36:13,455 WARN L179 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 92 [2018-10-14 16:36:14,031 WARN L179 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 96 [2018-10-14 16:36:14,564 WARN L179 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 95 [2018-10-14 16:36:15,088 WARN L179 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 63 [2018-10-14 16:36:15,447 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 74 [2018-10-14 16:36:15,752 WARN L179 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 65 [2018-10-14 16:36:16,382 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2018-10-14 16:36:16,589 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2018-10-14 16:36:16,918 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2018-10-14 16:36:17,200 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2018-10-14 16:36:17,505 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2018-10-14 16:36:17,878 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 68 [2018-10-14 16:36:18,242 WARN L179 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 78 [2018-10-14 16:36:18,628 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 80 [2018-10-14 16:36:19,002 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-10-14 16:36:19,452 WARN L179 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2018-10-14 16:36:19,873 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 91 [2018-10-14 16:36:20,503 WARN L179 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 96 [2018-10-14 16:36:20,962 WARN L179 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 103 [2018-10-14 16:36:21,293 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2018-10-14 16:36:21,552 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2018-10-14 16:36:21,862 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2018-10-14 16:36:22,223 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2018-10-14 16:36:22,887 WARN L179 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 96 [2018-10-14 16:36:23,376 WARN L179 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2018-10-14 16:36:23,758 WARN L179 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 93 [2018-10-14 16:36:24,908 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-14 16:36:25,427 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2018-10-14 16:36:25,664 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2018-10-14 16:36:25,878 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2018-10-14 16:36:26,469 WARN L179 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 94 [2018-10-14 16:36:26,936 WARN L179 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 96 [2018-10-14 16:36:29,492 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-10-14 16:36:30,073 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2018-10-14 16:36:30,348 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2018-10-14 16:36:31,837 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2018-10-14 16:36:33,314 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2018-10-14 16:36:34,043 WARN L179 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 93 [2018-10-14 16:36:34,927 WARN L179 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 101 [2018-10-14 16:36:35,423 WARN L179 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 106 [2018-10-14 16:36:35,765 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2018-10-14 16:36:36,017 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2018-10-14 16:36:36,345 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2018-10-14 16:36:36,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:36:36,786 INFO L93 Difference]: Finished difference Result 432 states and 433 transitions. [2018-10-14 16:36:36,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2018-10-14 16:36:36,789 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 284 [2018-10-14 16:36:36,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:36:36,791 INFO L225 Difference]: With dead ends: 432 [2018-10-14 16:36:36,791 INFO L226 Difference]: Without dead ends: 386 [2018-10-14 16:36:36,793 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 4 SyntacticMatches, 10 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9815 ImplicationChecksByTransitivity, 29.9s TimeCoverageRelationStatistics Valid=3458, Invalid=33984, Unknown=0, NotChecked=0, Total=37442 [2018-10-14 16:36:36,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2018-10-14 16:36:36,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 371. [2018-10-14 16:36:36,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2018-10-14 16:36:36,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 372 transitions. [2018-10-14 16:36:36,800 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 372 transitions. Word has length 284 [2018-10-14 16:36:36,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:36:36,800 INFO L481 AbstractCegarLoop]: Abstraction has 371 states and 372 transitions. [2018-10-14 16:36:36,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 87 states. [2018-10-14 16:36:36,800 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 372 transitions. [2018-10-14 16:36:36,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2018-10-14 16:36:36,802 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:36:36,802 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:36:36,803 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:36:36,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:36:36,803 INFO L82 PathProgramCache]: Analyzing trace with hash 374804193, now seen corresponding path program 5 times [2018-10-14 16:36:36,804 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:36:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:36:38,376 WARN L179 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2018-10-14 16:36:39,418 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2018-10-14 16:36:39,909 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-10-14 16:36:40,626 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2018-10-14 16:36:40,799 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2018-10-14 16:36:40,965 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2018-10-14 16:36:41,131 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2018-10-14 16:36:41,297 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2018-10-14 16:36:41,469 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2018-10-14 16:36:41,661 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-10-14 16:36:41,874 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-10-14 16:36:42,120 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2018-10-14 16:36:42,295 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2018-10-14 16:36:42,464 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2018-10-14 16:36:42,638 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2018-10-14 16:36:47,885 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 34 [2018-10-14 16:36:51,029 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 41 [2018-10-14 16:36:51,391 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 43 [2018-10-14 16:36:51,874 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 49 [2018-10-14 16:36:52,279 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 48 [2018-10-14 16:36:52,671 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 48 [2018-10-14 16:36:53,089 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 55 [2018-10-14 16:36:53,618 WARN L179 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 57 [2018-10-14 16:36:54,291 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 47 [2018-10-14 16:36:54,664 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 47 [2018-10-14 16:36:55,116 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 47 [2018-10-14 16:36:55,515 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 47 [2018-10-14 16:36:55,974 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2018-10-14 16:36:56,380 WARN L179 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2018-10-14 16:36:57,049 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2018-10-14 16:36:57,375 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2018-10-14 16:37:02,026 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 0 proven. 579 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:37:02,027 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:37:02,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [119] total 119 [2018-10-14 16:37:02,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 119 states [2018-10-14 16:37:02,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2018-10-14 16:37:02,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=817, Invalid=13225, Unknown=0, NotChecked=0, Total=14042 [2018-10-14 16:37:02,029 INFO L87 Difference]: Start difference. First operand 371 states and 372 transitions. Second operand 119 states. [2018-10-14 16:37:04,562 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 37 [2018-10-14 16:37:05,012 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 43 [2018-10-14 16:37:05,421 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 36 [2018-10-14 16:37:06,865 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 30 [2018-10-14 16:37:07,379 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 36 [2018-10-14 16:37:07,854 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 43 [2018-10-14 16:37:08,340 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 51 [2018-10-14 16:37:09,073 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 66 [2018-10-14 16:37:09,693 WARN L179 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 68 [2018-10-14 16:37:10,791 WARN L179 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 80 [2018-10-14 16:37:11,511 WARN L179 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 88 [2018-10-14 16:37:12,567 WARN L179 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 94 [2018-10-14 16:37:13,344 WARN L179 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 98 [2018-10-14 16:37:14,034 WARN L179 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 114 [2018-10-14 16:37:14,629 WARN L179 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 110 [2018-10-14 16:37:15,272 WARN L179 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 114 [2018-10-14 16:37:16,084 WARN L179 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 118 [2018-10-14 16:37:16,726 WARN L179 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 118 [2018-10-14 16:37:17,611 WARN L179 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 131 [2018-10-14 16:37:18,070 WARN L179 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 91 [2018-10-14 16:37:18,714 WARN L179 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 110 [2018-10-14 16:37:19,261 WARN L179 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 101 [2018-10-14 16:37:19,620 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 46 [2018-10-14 16:37:20,016 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 52 [2018-10-14 16:37:20,459 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 60 [2018-10-14 16:37:20,873 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 62 [2018-10-14 16:37:21,477 WARN L179 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 72 [2018-10-14 16:37:21,943 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 77 [2018-10-14 16:37:22,456 WARN L179 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 82 [2018-10-14 16:37:23,034 WARN L179 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 92 [2018-10-14 16:37:23,647 WARN L179 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 104 [2018-10-14 16:37:24,343 WARN L179 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 112 [2018-10-14 16:37:24,873 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2018-10-14 16:37:25,336 WARN L179 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 84 [2018-10-14 16:37:25,844 WARN L179 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 93 [2018-10-14 16:37:26,603 WARN L179 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 98 [2018-10-14 16:37:27,103 WARN L179 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 103 [2018-10-14 16:37:27,490 WARN L179 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 84 [2018-10-14 16:37:27,792 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 79 [2018-10-14 16:37:28,173 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 79 [2018-10-14 16:37:28,646 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 82 [2018-10-14 16:37:29,652 WARN L179 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 128 [2018-10-14 16:37:30,394 WARN L179 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 135 [2018-10-14 16:37:31,086 WARN L179 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 122 [2018-10-14 16:37:31,648 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2018-10-14 16:37:31,941 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2018-10-14 16:37:32,245 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2018-10-14 16:37:32,577 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2018-10-14 16:37:32,927 WARN L179 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2018-10-14 16:37:33,319 WARN L179 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2018-10-14 16:37:33,738 WARN L179 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 90 [2018-10-14 16:37:34,226 WARN L179 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 102 [2018-10-14 16:37:34,811 WARN L179 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 109 [2018-10-14 16:37:35,469 WARN L179 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 125 [2018-10-14 16:37:36,338 WARN L179 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 136 [2018-10-14 16:37:37,091 WARN L179 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 139 [2018-10-14 16:37:37,858 WARN L179 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 143 [2018-10-14 16:37:38,441 WARN L179 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 89 [2018-10-14 16:37:38,958 WARN L179 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 101 [2018-10-14 16:37:39,414 WARN L179 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 94 [2018-10-14 16:37:40,634 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 49 [2018-10-14 16:37:40,908 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 54 [2018-10-14 16:37:41,299 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2018-10-14 16:37:41,629 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 68 [2018-10-14 16:37:42,000 WARN L179 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2018-10-14 16:37:42,408 WARN L179 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 84 [2018-10-14 16:37:42,895 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-10-14 16:37:43,132 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2018-10-14 16:37:43,464 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2018-10-14 16:37:43,745 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2018-10-14 16:37:44,017 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2018-10-14 16:37:44,260 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 68 [2018-10-14 16:37:44,543 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 71 [2018-10-14 16:37:45,216 WARN L179 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 126 [2018-10-14 16:37:45,873 WARN L179 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 128 [2018-10-14 16:37:46,539 WARN L179 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 115 [2018-10-14 16:37:47,193 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2018-10-14 16:37:47,445 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2018-10-14 16:37:47,766 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2018-10-14 16:37:48,095 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2018-10-14 16:37:48,441 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2018-10-14 16:37:48,901 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 82 [2018-10-14 16:37:49,462 WARN L179 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 97 [2018-10-14 16:37:50,011 WARN L179 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 99 [2018-10-14 16:37:50,463 WARN L179 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2018-10-14 16:37:51,167 WARN L179 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 95 [2018-10-14 16:37:52,145 WARN L179 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 105 [2018-10-14 16:37:53,189 WARN L179 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 110 [2018-10-14 16:37:54,241 WARN L179 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 115 [2018-10-14 16:37:55,020 WARN L179 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 106 [2018-10-14 16:37:55,690 WARN L179 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 101 [2018-10-14 16:37:56,881 WARN L179 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 144 [2018-10-14 16:37:58,066 WARN L179 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 154 [2018-10-14 16:37:59,257 WARN L179 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 157 [2018-10-14 16:38:00,541 WARN L179 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 160 [2018-10-14 16:38:01,687 WARN L179 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 136 [2018-10-14 16:38:02,844 WARN L179 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 147 [2018-10-14 16:38:03,380 WARN L179 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 79 [2018-10-14 16:38:04,165 WARN L179 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 102 [2018-10-14 16:38:04,896 WARN L179 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 95 [2018-10-14 16:38:05,397 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2018-10-14 16:38:05,685 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2018-10-14 16:38:05,978 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61 [2018-10-14 16:38:06,412 WARN L179 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2018-10-14 16:38:07,002 WARN L179 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 81 [2018-10-14 16:38:07,545 WARN L179 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 86 [2018-10-14 16:38:08,149 WARN L179 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 97 [2018-10-14 16:38:09,009 WARN L179 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 115 [2018-10-14 16:38:09,487 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2018-10-14 16:38:09,930 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2018-10-14 16:38:10,455 WARN L179 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 114 [2018-10-14 16:38:10,983 WARN L179 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2018-10-14 16:38:11,604 WARN L179 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 115 [2018-10-14 16:38:12,316 WARN L179 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 119 [2018-10-14 16:38:12,638 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-10-14 16:38:12,920 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-10-14 16:38:13,323 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-10-14 16:38:13,764 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2018-10-14 16:38:15,961 WARN L179 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 132 [2018-10-14 16:38:16,427 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2018-10-14 16:38:17,250 WARN L179 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 120 [2018-10-14 16:38:18,177 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2018-10-14 16:38:18,449 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2018-10-14 16:38:18,876 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-10-14 16:38:19,285 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2018-10-14 16:38:19,622 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2018-10-14 16:38:19,991 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2018-10-14 16:38:20,826 WARN L179 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 159 [2018-10-14 16:38:21,224 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2018-10-14 16:38:21,799 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2018-10-14 16:38:22,427 WARN L179 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2018-10-14 16:38:23,498 WARN L179 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 154 [2018-10-14 16:38:23,765 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2018-10-14 16:38:24,251 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2018-10-14 16:38:25,204 WARN L179 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 163 [2018-10-14 16:38:25,645 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2018-10-14 16:38:26,513 WARN L179 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 153 [2018-10-14 16:38:27,571 WARN L179 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 165 [2018-10-14 16:38:28,580 WARN L179 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 158 [2018-10-14 16:38:29,127 WARN L179 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2018-10-14 16:38:29,689 WARN L179 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2018-10-14 16:38:30,467 WARN L179 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 154 [2018-10-14 16:38:30,775 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2018-10-14 16:38:31,700 WARN L179 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 162 [2018-10-14 16:38:31,960 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2018-10-14 16:38:32,980 WARN L179 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 167 [2018-10-14 16:38:33,482 WARN L179 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2018-10-14 16:38:33,847 WARN L179 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2018-10-14 16:38:34,318 WARN L179 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2018-10-14 16:38:34,956 WARN L179 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 112 [2018-10-14 16:38:36,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:38:36,742 INFO L93 Difference]: Finished difference Result 525 states and 527 transitions. [2018-10-14 16:38:36,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2018-10-14 16:38:36,748 INFO L78 Accepts]: Start accepts. Automaton has 119 states. Word has length 327 [2018-10-14 16:38:36,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:38:36,750 INFO L225 Difference]: With dead ends: 525 [2018-10-14 16:38:36,751 INFO L226 Difference]: Without dead ends: 479 [2018-10-14 16:38:36,753 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 289 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21515 ImplicationChecksByTransitivity, 103.2s TimeCoverageRelationStatistics Valid=9108, Invalid=75282, Unknown=0, NotChecked=0, Total=84390 [2018-10-14 16:38:36,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2018-10-14 16:38:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 414. [2018-10-14 16:38:36,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2018-10-14 16:38:36,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 415 transitions. [2018-10-14 16:38:36,760 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 415 transitions. Word has length 327 [2018-10-14 16:38:36,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:38:36,761 INFO L481 AbstractCegarLoop]: Abstraction has 414 states and 415 transitions. [2018-10-14 16:38:36,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 119 states. [2018-10-14 16:38:36,761 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 415 transitions. [2018-10-14 16:38:36,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2018-10-14 16:38:36,763 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:38:36,763 INFO L375 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:38:36,764 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:38:36,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:38:36,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1015748301, now seen corresponding path program 6 times [2018-10-14 16:38:36,765 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:38:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:38:37,969 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-14 16:38:56,866 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 27 proven. 773 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-14 16:38:56,866 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:38:56,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [131] total 131 [2018-10-14 16:38:56,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 131 states [2018-10-14 16:38:56,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2018-10-14 16:38:56,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=563, Invalid=16467, Unknown=0, NotChecked=0, Total=17030 [2018-10-14 16:38:56,868 INFO L87 Difference]: Start difference. First operand 414 states and 415 transitions. Second operand 131 states. [2018-10-14 16:38:59,673 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 43 [2018-10-14 16:39:01,386 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 36 [2018-10-14 16:39:01,794 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 44 [2018-10-14 16:39:02,235 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 52 [2018-10-14 16:39:02,941 WARN L179 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 68 [2018-10-14 16:39:03,586 WARN L179 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 70 [2018-10-14 16:39:04,583 WARN L179 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 83 [2018-10-14 16:39:05,376 WARN L179 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 94 [2018-10-14 16:39:06,548 WARN L179 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 100 [2018-10-14 16:39:07,445 WARN L179 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 104 [2018-10-14 16:39:08,288 WARN L179 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 112 [2018-10-14 16:39:09,003 WARN L179 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 108 [2018-10-14 16:39:09,916 WARN L179 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 112 [2018-10-14 16:39:10,719 WARN L179 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 108 [2018-10-14 16:39:11,556 WARN L179 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 84 [2018-10-14 16:39:12,302 WARN L179 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 98 [2018-10-14 16:39:12,937 WARN L179 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 88 [2018-10-14 16:39:13,241 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2018-10-14 16:39:13,603 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2018-10-14 16:39:13,978 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2018-10-14 16:39:14,268 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2018-10-14 16:39:14,839 WARN L179 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2018-10-14 16:39:15,367 WARN L179 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2018-10-14 16:39:15,957 WARN L179 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 92 [2018-10-14 16:39:16,697 WARN L179 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 106 [2018-10-14 16:39:17,471 WARN L179 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 120 [2018-10-14 16:39:18,256 WARN L179 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 124 [2018-10-14 16:39:18,932 WARN L179 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2018-10-14 16:39:19,607 WARN L179 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 104 [2018-10-14 16:39:20,945 WARN L179 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 157 DAG size of output: 123 [2018-10-14 16:39:21,765 WARN L179 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 120 [2018-10-14 16:39:22,736 WARN L179 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 128 [2018-10-14 16:39:23,642 WARN L179 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 137 [2018-10-14 16:39:24,328 WARN L179 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 107 [2018-10-14 16:39:24,818 WARN L179 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 99 [2018-10-14 16:39:25,610 WARN L179 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 103 [2018-10-14 16:39:26,238 WARN L179 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2018-10-14 16:39:27,302 WARN L179 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 124 [2018-10-14 16:39:28,162 WARN L179 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 133 [2018-10-14 16:39:28,909 WARN L179 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 120 [2018-10-14 16:39:29,764 WARN L179 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 120 [2018-10-14 16:39:30,616 WARN L179 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 124 [2018-10-14 16:39:31,457 WARN L179 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 98 [2018-10-14 16:39:31,992 WARN L179 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 113 [2018-10-14 16:39:32,478 WARN L179 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 106 [2018-10-14 16:39:33,275 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2018-10-14 16:39:33,605 WARN L179 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2018-10-14 16:39:34,057 WARN L179 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2018-10-14 16:39:34,513 WARN L179 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2018-10-14 16:39:35,045 WARN L179 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 107 [2018-10-14 16:39:35,592 WARN L179 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 110 [2018-10-14 16:39:35,940 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2018-10-14 16:39:36,387 WARN L179 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 91 [2018-10-14 16:39:36,962 WARN L179 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 111 [2018-10-14 16:39:37,502 WARN L179 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 108 [2018-10-14 16:39:38,096 WARN L179 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 116 [2018-10-14 16:39:38,714 WARN L179 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 124 [2018-10-14 16:39:39,269 WARN L179 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 100 [2018-10-14 16:39:39,700 WARN L179 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 92 [2018-10-14 16:39:40,173 WARN L179 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 96 [2018-10-14 16:39:41,227 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2018-10-14 16:39:41,513 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2018-10-14 16:39:42,516 WARN L179 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 102 [2018-10-14 16:39:43,531 WARN L179 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2018-10-14 16:39:44,346 WARN L179 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2018-10-14 16:39:44,875 WARN L179 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 92 [2018-10-14 16:39:45,414 WARN L179 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2018-10-14 16:39:45,771 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-10-14 16:39:46,018 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2018-10-14 16:39:46,355 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-10-14 16:39:46,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:39:46,512 INFO L93 Difference]: Finished difference Result 423 states and 424 transitions. [2018-10-14 16:39:46,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-10-14 16:39:46,513 INFO L78 Accepts]: Start accepts. Automaton has 131 states. Word has length 370 [2018-10-14 16:39:46,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:39:46,514 INFO L225 Difference]: With dead ends: 423 [2018-10-14 16:39:46,514 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:39:46,517 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 10 SyntacticMatches, 13 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10605 ImplicationChecksByTransitivity, 56.6s TimeCoverageRelationStatistics Valid=4021, Invalid=41561, Unknown=0, NotChecked=0, Total=45582 [2018-10-14 16:39:46,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:39:46,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:39:46,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:39:46,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:39:46,518 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 370 [2018-10-14 16:39:46,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:39:46,518 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:39:46,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 131 states. [2018-10-14 16:39:46,518 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:39:46,519 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:39:46,524 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:39:46 BoogieIcfgContainer [2018-10-14 16:39:46,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:39:46,525 INFO L168 Benchmark]: Toolchain (without parser) took 355886.38 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -112.2 MB). Free memory was 1.5 GB in the beginning and 862.1 MB in the end (delta: 609.3 MB). Peak memory consumption was 497.1 MB. Max. memory is 7.1 GB. [2018-10-14 16:39:46,525 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:39:46,525 INFO L168 Benchmark]: Boogie Preprocessor took 93.12 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:39:46,526 INFO L168 Benchmark]: RCFGBuilder took 921.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:39:46,526 INFO L168 Benchmark]: TraceAbstraction took 354867.55 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -112.2 MB). Free memory was 1.4 GB in the beginning and 862.1 MB in the end (delta: 577.6 MB). Peak memory consumption was 465.4 MB. Max. memory is 7.1 GB. [2018-10-14 16:39:46,527 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.12 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 921.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 354867.55 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -112.2 MB). Free memory was 1.4 GB in the beginning and 862.1 MB in the end (delta: 577.6 MB). Peak memory consumption was 465.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 219]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 1 error locations. SAFE Result, 354.8s OverallTime, 14 OverallIterations, 8 TraceHistogramMax, 278.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1407 SDtfs, 28156 SDslu, 24242 SDs, 0 SdLazy, 44919 SolverSat, 1927 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1369 GetRequests, 47 SyntacticMatches, 41 SemanticMatches, 1281 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57563 ImplicationChecksByTransitivity, 290.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=414occurred in iteration=13, 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, 14 MinimizatonAttempts, 858 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 71.9s InterpolantComputationTime, 2386 NumberOfCodeBlocks, 2386 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2372 ConstructedInterpolants, 0 QuantifiedInterpolants, 18253290 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 107/2381 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-39-46-534.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/alternating_list_true-unreach-call_true-valid-memsafety.i_39.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-39-46-534.csv Received shutdown request...