java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/real-life/Elevator-Integer.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 08:36:02,762 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 08:36:02,763 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 08:36:02,777 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 08:36:02,778 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 08:36:02,779 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 08:36:02,781 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 08:36:02,782 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 08:36:02,784 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 08:36:02,785 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 08:36:02,786 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-07-25 08:36:02,802 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 08:36:02,803 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 08:36:02,804 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 08:36:02,805 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 08:36:02,805 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 08:36:02,806 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 08:36:02,808 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 08:36:02,808 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 08:36:02,809 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-25 08:36:02,811 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-07-25 08:36:02,833 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 08:36:02,833 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 08:36:02,834 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 08:36:02,835 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 08:36:02,835 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 08:36:02,835 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-25 08:36:02,835 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 08:36:02,836 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 08:36:02,903 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 08:36:02,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 08:36:02,928 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 08:36:02,929 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 08:36:02,930 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 08:36:02,931 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/Elevator-Integer.bpl [2018-07-25 08:36:02,931 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/Elevator-Integer.bpl' [2018-07-25 08:36:03,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 08:36:03,003 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 08:36:03,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 08:36:03,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 08:36:03,004 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 08:36:03,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:02" (1/1) ... [2018-07-25 08:36:03,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:02" (1/1) ... [2018-07-25 08:36:03,045 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 08:36:03,046 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 08:36:03,046 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 08:36:03,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 08:36:03,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 08:36:03,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 08:36:03,050 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 08:36:03,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:02" (1/1) ... [2018-07-25 08:36:03,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:02" (1/1) ... [2018-07-25 08:36:03,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:02" (1/1) ... [2018-07-25 08:36:03,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:02" (1/1) ... [2018-07-25 08:36:03,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:02" (1/1) ... [2018-07-25 08:36:03,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:02" (1/1) ... [2018-07-25 08:36:03,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:02" (1/1) ... [2018-07-25 08:36:03,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 08:36:03,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 08:36:03,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 08:36:03,083 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 08:36:03,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:02" (1/1) ... [2018-07-25 08:36:03,172 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Elevator given in one single declaration [2018-07-25 08:36:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure Elevator [2018-07-25 08:36:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure Elevator [2018-07-25 08:36:03,981 INFO L270 CfgBuilder]: Using library mode [2018-07-25 08:36:03,982 INFO L202 PluginConnector]: Adding new model Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:36:03 BoogieIcfgContainer [2018-07-25 08:36:03,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 08:36:03,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 08:36:03,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 08:36:03,987 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 08:36:03,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:36:02" (1/2) ... [2018-07-25 08:36:03,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9cf67d and model type Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 08:36:03, skipping insertion in model container [2018-07-25 08:36:03,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:36:03" (2/2) ... [2018-07-25 08:36:03,993 INFO L112 eAbstractionObserver]: Analyzing ICFG Elevator-Integer.bpl [2018-07-25 08:36:04,003 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-25 08:36:04,012 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 08:36:04,062 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 08:36:04,063 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 08:36:04,063 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 08:36:04,063 INFO L376 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-25 08:36:04,063 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 08:36:04,064 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 08:36:04,064 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 08:36:04,064 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 08:36:04,064 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 08:36:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-07-25 08:36:04,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-25 08:36:04,094 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:04,095 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-25 08:36:04,097 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ElevatorErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:04,103 INFO L82 PathProgramCache]: Analyzing trace with hash 35564, now seen corresponding path program 1 times [2018-07-25 08:36:04,110 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:04,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:04,262 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:36:04,263 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 08:36:04,268 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:36:04,284 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:36:04,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:36:04,288 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 4 states. [2018-07-25 08:36:04,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:04,386 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-25 08:36:04,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:36:04,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-07-25 08:36:04,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:04,401 INFO L225 Difference]: With dead ends: 9 [2018-07-25 08:36:04,402 INFO L226 Difference]: Without dead ends: 6 [2018-07-25 08:36:04,408 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:36:04,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-25 08:36:04,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-25 08:36:04,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-25 08:36:04,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-07-25 08:36:04,459 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 3 [2018-07-25 08:36:04,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:04,459 INFO L472 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-07-25 08:36:04,460 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:36:04,460 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-07-25 08:36:04,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-25 08:36:04,460 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:04,461 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-07-25 08:36:04,461 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ElevatorErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:04,461 INFO L82 PathProgramCache]: Analyzing trace with hash 34183738, now seen corresponding path program 1 times [2018-07-25 08:36:04,462 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:04,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:04,587 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:36:04,588 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-25 08:36:04,590 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 08:36:04,591 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 08:36:04,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-25 08:36:04,594 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 6 states. [2018-07-25 08:36:04,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:04,689 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-25 08:36:04,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 08:36:04,689 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-07-25 08:36:04,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:04,690 INFO L225 Difference]: With dead ends: 9 [2018-07-25 08:36:04,690 INFO L226 Difference]: Without dead ends: 8 [2018-07-25 08:36:04,692 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:04,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-25 08:36:04,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-25 08:36:04,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-25 08:36:04,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-07-25 08:36:04,696 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2018-07-25 08:36:04,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:04,697 INFO L472 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-07-25 08:36:04,699 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 08:36:04,699 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-07-25 08:36:04,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 08:36:04,700 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:04,700 INFO L354 BasicCegarLoop]: trace histogram [3, 2, 1, 1] [2018-07-25 08:36:04,701 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ElevatorErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:04,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1509159416, now seen corresponding path program 2 times [2018-07-25 08:36:04,701 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:05,028 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:05,029 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:36:05,030 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-25 08:36:05,030 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 08:36:05,031 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 08:36:05,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:36:05,032 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2018-07-25 08:36:05,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:05,148 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-25 08:36:05,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-25 08:36:05,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2018-07-25 08:36:05,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:05,149 INFO L225 Difference]: With dead ends: 11 [2018-07-25 08:36:05,152 INFO L226 Difference]: Without dead ends: 10 [2018-07-25 08:36:05,152 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-07-25 08:36:05,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-25 08:36:05,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-07-25 08:36:05,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-07-25 08:36:05,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-07-25 08:36:05,163 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2018-07-25 08:36:05,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:05,164 INFO L472 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-07-25 08:36:05,164 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 08:36:05,166 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-07-25 08:36:05,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-25 08:36:05,167 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:05,167 INFO L354 BasicCegarLoop]: trace histogram [4, 3, 1, 1] [2018-07-25 08:36:05,167 INFO L415 AbstractCegarLoop]: === Iteration 4 === [ElevatorErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:05,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1396754006, now seen corresponding path program 3 times [2018-07-25 08:36:05,168 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:05,635 WARN L169 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2018-07-25 08:36:05,793 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:05,793 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:36:05,794 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-25 08:36:05,794 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:36:05,795 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:36:05,795 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:36:05,796 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 8 states. [2018-07-25 08:36:06,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:06,045 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-07-25 08:36:06,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-25 08:36:06,045 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2018-07-25 08:36:06,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:06,046 INFO L225 Difference]: With dead ends: 13 [2018-07-25 08:36:06,046 INFO L226 Difference]: Without dead ends: 12 [2018-07-25 08:36:06,047 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-07-25 08:36:06,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-07-25 08:36:06,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-07-25 08:36:06,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-07-25 08:36:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-07-25 08:36:06,065 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2018-07-25 08:36:06,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:06,066 INFO L472 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-07-25 08:36:06,066 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:36:06,066 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-07-25 08:36:06,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-25 08:36:06,067 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:06,069 INFO L354 BasicCegarLoop]: trace histogram [5, 4, 1, 1] [2018-07-25 08:36:06,070 INFO L415 AbstractCegarLoop]: === Iteration 5 === [ElevatorErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:06,070 INFO L82 PathProgramCache]: Analyzing trace with hash -2044157148, now seen corresponding path program 4 times [2018-07-25 08:36:06,070 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:06,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:06,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:06,665 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 51 [2018-07-25 08:36:06,748 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:06,831 WARN L169 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 51 [2018-07-25 08:36:07,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:07,086 WARN L169 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 50 [2018-07-25 08:36:07,377 WARN L169 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 48 [2018-07-25 08:36:07,488 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:07,488 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:36:07,489 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-07-25 08:36:07,489 INFO L451 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-25 08:36:07,489 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-25 08:36:07,490 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-07-25 08:36:07,490 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 12 states. [2018-07-25 08:36:07,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:07,990 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-07-25 08:36:07,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-25 08:36:07,990 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2018-07-25 08:36:07,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:07,991 INFO L225 Difference]: With dead ends: 15 [2018-07-25 08:36:07,991 INFO L226 Difference]: Without dead ends: 14 [2018-07-25 08:36:07,992 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:36:07,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-25 08:36:07,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-25 08:36:07,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-25 08:36:07,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-07-25 08:36:08,000 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-07-25 08:36:08,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:08,000 INFO L472 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-07-25 08:36:08,000 INFO L473 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-25 08:36:08,001 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-07-25 08:36:08,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-25 08:36:08,001 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:08,002 INFO L354 BasicCegarLoop]: trace histogram [6, 5, 1, 1] [2018-07-25 08:36:08,002 INFO L415 AbstractCegarLoop]: === Iteration 6 === [ElevatorErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:08,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1634958222, now seen corresponding path program 5 times [2018-07-25 08:36:08,003 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:08,735 WARN L169 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 36 [2018-07-25 08:36:08,919 WARN L169 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 36 [2018-07-25 08:36:09,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:09,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:09,823 WARN L169 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 69 [2018-07-25 08:36:10,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:10,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:10,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:10,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:10,702 WARN L169 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 65 [2018-07-25 08:36:11,788 WARN L169 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 225 DAG size of output: 94 [2018-07-25 08:36:12,588 WARN L169 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 96 [2018-07-25 08:36:13,277 WARN L169 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 92 [2018-07-25 08:36:13,442 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:13,442 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:36:13,443 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-07-25 08:36:13,443 INFO L451 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-25 08:36:13,443 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-25 08:36:13,444 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-07-25 08:36:13,444 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 13 states. [2018-07-25 08:36:13,871 WARN L169 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 88 [2018-07-25 08:36:14,045 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2018-07-25 08:36:14,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:14,106 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-07-25 08:36:14,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-25 08:36:14,106 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 13 [2018-07-25 08:36:14,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:14,107 INFO L225 Difference]: With dead ends: 17 [2018-07-25 08:36:14,107 INFO L226 Difference]: Without dead ends: 16 [2018-07-25 08:36:14,108 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=116, Invalid=190, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:36:14,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-25 08:36:14,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-07-25 08:36:14,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-07-25 08:36:14,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-07-25 08:36:14,122 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-07-25 08:36:14,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:14,122 INFO L472 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-07-25 08:36:14,122 INFO L473 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-25 08:36:14,123 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-07-25 08:36:14,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-25 08:36:14,123 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:14,123 INFO L354 BasicCegarLoop]: trace histogram [7, 6, 1, 1] [2018-07-25 08:36:14,124 INFO L415 AbstractCegarLoop]: === Iteration 7 === [ElevatorErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:14,124 INFO L82 PathProgramCache]: Analyzing trace with hash 763185728, now seen corresponding path program 6 times [2018-07-25 08:36:14,124 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:15,162 WARN L169 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 36 [2018-07-25 08:36:15,775 WARN L169 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 64 [2018-07-25 08:36:16,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:16,701 WARN L169 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 85 [2018-07-25 08:36:17,561 WARN L169 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 80 [2018-07-25 08:36:18,558 WARN L169 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 89 [2018-07-25 08:36:19,397 WARN L169 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 90 [2018-07-25 08:36:20,254 WARN L169 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 85 [2018-07-25 08:36:20,518 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 42 [2018-07-25 08:36:20,537 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:20,537 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:36:20,537 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-07-25 08:36:20,538 INFO L451 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-25 08:36:20,538 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-25 08:36:20,538 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-07-25 08:36:20,539 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 13 states. [2018-07-25 08:36:21,217 WARN L169 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2018-07-25 08:36:21,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:21,295 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-07-25 08:36:21,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-25 08:36:21,296 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2018-07-25 08:36:21,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:21,298 INFO L225 Difference]: With dead ends: 19 [2018-07-25 08:36:21,298 INFO L226 Difference]: Without dead ends: 18 [2018-07-25 08:36:21,299 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=137, Invalid=243, Unknown=0, NotChecked=0, Total=380 [2018-07-25 08:36:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-07-25 08:36:21,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-07-25 08:36:21,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-07-25 08:36:21,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-07-25 08:36:21,318 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2018-07-25 08:36:21,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:21,319 INFO L472 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-07-25 08:36:21,319 INFO L473 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-25 08:36:21,319 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-07-25 08:36:21,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-25 08:36:21,320 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:21,320 INFO L354 BasicCegarLoop]: trace histogram [8, 7, 1, 1] [2018-07-25 08:36:21,322 INFO L415 AbstractCegarLoop]: === Iteration 8 === [ElevatorErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:21,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1017916274, now seen corresponding path program 7 times [2018-07-25 08:36:21,323 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:22,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:23,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:23,184 WARN L169 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 44 [2018-07-25 08:36:23,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:23,786 WARN L169 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 42 [2018-07-25 08:36:23,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:24,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:24,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:24,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:24,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:24,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:24,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:24,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:25,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:25,522 WARN L169 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 411 DAG size of output: 61 [2018-07-25 08:36:25,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:25,917 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:25,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:25,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:26,323 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:26,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:26,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:26,955 WARN L169 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 414 DAG size of output: 60 [2018-07-25 08:36:28,623 WARN L169 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 449 DAG size of output: 97 [2018-07-25 08:36:29,977 WARN L169 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 428 DAG size of output: 96 [2018-07-25 08:36:31,496 WARN L169 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 428 DAG size of output: 123 [2018-07-25 08:36:32,044 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:32,711 WARN L169 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 498 DAG size of output: 98 [2018-07-25 08:36:33,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:34,005 WARN L169 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 499 DAG size of output: 102 [2018-07-25 08:36:35,065 WARN L169 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 71 [2018-07-25 08:36:35,382 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 39 [2018-07-25 08:36:35,564 WARN L169 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 34 [2018-07-25 08:36:35,595 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:36:35,595 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:36:35,595 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-07-25 08:36:35,596 INFO L451 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-25 08:36:35,596 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-25 08:36:35,599 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2018-07-25 08:36:35,599 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 16 states. [2018-07-25 08:36:35,793 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 48 [2018-07-25 08:36:35,962 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 76 [2018-07-25 08:36:36,251 WARN L169 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 122 [2018-07-25 08:36:36,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:36:36,504 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-07-25 08:36:36,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-25 08:36:36,505 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 17 [2018-07-25 08:36:36,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:36:36,506 INFO L225 Difference]: With dead ends: 21 [2018-07-25 08:36:36,506 INFO L226 Difference]: Without dead ends: 20 [2018-07-25 08:36:36,507 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2018-07-25 08:36:36,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-07-25 08:36:36,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-07-25 08:36:36,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-07-25 08:36:36,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-07-25 08:36:36,532 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2018-07-25 08:36:36,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:36:36,533 INFO L472 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-07-25 08:36:36,533 INFO L473 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-07-25 08:36:36,533 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-07-25 08:36:36,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-25 08:36:36,534 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:36:36,534 INFO L354 BasicCegarLoop]: trace histogram [9, 8, 1, 1] [2018-07-25 08:36:36,534 INFO L415 AbstractCegarLoop]: === Iteration 9 === [ElevatorErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:36:36,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1035010908, now seen corresponding path program 8 times [2018-07-25 08:36:36,535 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:36:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:36:38,331 WARN L169 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 44 [2018-07-25 08:36:38,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:38,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:38,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:38,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:39,551 WARN L169 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 403 DAG size of output: 66 [2018-07-25 08:36:39,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:39,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:39,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:39,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:40,697 WARN L169 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 400 DAG size of output: 64 [2018-07-25 08:36:42,281 WARN L169 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 473 DAG size of output: 105 [2018-07-25 08:36:42,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:42,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:44,767 WARN L169 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 786 DAG size of output: 107 [2018-07-25 08:36:45,026 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:45,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:47,600 WARN L169 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 789 DAG size of output: 107 [2018-07-25 08:36:50,829 WARN L169 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 766 DAG size of output: 176 [2018-07-25 08:36:53,654 WARN L169 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 852 DAG size of output: 119 [2018-07-25 08:36:55,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:55,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:55,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:55,310 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:55,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:55,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:57,443 WARN L169 SmtUtils]: Spent 3.55 s on a formula simplification. DAG size of input: 886 DAG size of output: 145 [2018-07-25 08:36:57,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:58,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:58,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:58,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:58,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:59,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:59,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:59,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:59,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:59,482 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:59,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:59,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:59,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:36:59,832 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:01,452 WARN L169 SmtUtils]: Spent 3.83 s on a formula simplification. DAG size of input: 899 DAG size of output: 149 [2018-07-25 08:37:03,560 WARN L169 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 453 DAG size of output: 77 [2018-07-25 08:37:05,958 WARN L169 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 453 DAG size of output: 85 [2018-07-25 08:37:06,100 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 37 [2018-07-25 08:37:06,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:06,267 WARN L169 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 31 [2018-07-25 08:37:06,287 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:06,288 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:37:06,288 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-07-25 08:37:06,288 INFO L451 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-07-25 08:37:06,289 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-07-25 08:37:06,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2018-07-25 08:37:06,289 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 18 states. [2018-07-25 08:37:06,723 WARN L169 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 89 [2018-07-25 08:37:07,059 WARN L169 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 111 [2018-07-25 08:37:07,327 WARN L169 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 130 [2018-07-25 08:37:07,656 WARN L169 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 134 [2018-07-25 08:37:07,847 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 81 [2018-07-25 08:37:07,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:07,888 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-07-25 08:37:07,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-25 08:37:07,888 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 19 [2018-07-25 08:37:07,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:07,889 INFO L225 Difference]: With dead ends: 23 [2018-07-25 08:37:07,889 INFO L226 Difference]: Without dead ends: 22 [2018-07-25 08:37:07,890 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 28.8s TimeCoverageRelationStatistics Valid=192, Invalid=458, Unknown=0, NotChecked=0, Total=650 [2018-07-25 08:37:07,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-07-25 08:37:07,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-07-25 08:37:07,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-07-25 08:37:07,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-07-25 08:37:07,908 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2018-07-25 08:37:07,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:07,909 INFO L472 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-07-25 08:37:07,909 INFO L473 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-07-25 08:37:07,909 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-07-25 08:37:07,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-25 08:37:07,909 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:37:07,910 INFO L354 BasicCegarLoop]: trace histogram [10, 9, 1, 1] [2018-07-25 08:37:07,910 INFO L415 AbstractCegarLoop]: === Iteration 10 === [ElevatorErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:37:07,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1786923350, now seen corresponding path program 9 times [2018-07-25 08:37:07,910 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:37:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:37:11,103 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:11,566 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:12,255 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:12,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:12,354 WARN L169 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 620 DAG size of output: 39 [2018-07-25 08:37:12,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:12,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:12,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:12,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:14,078 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:14,901 WARN L169 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 781 DAG size of output: 64 [2018-07-25 08:37:15,218 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:15,218 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:15,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:15,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:16,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:17,195 WARN L169 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 780 DAG size of output: 60 [2018-07-25 08:37:19,503 WARN L169 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 796 DAG size of output: 76 [2018-07-25 08:37:21,883 WARN L169 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 797 DAG size of output: 96 [2018-07-25 08:37:22,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:22,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:22,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:23,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:23,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:23,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:23,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:23,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:26,450 WARN L169 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 1131 DAG size of output: 109 [2018-07-25 08:37:31,038 WARN L169 SmtUtils]: Spent 3.95 s on a formula simplification. DAG size of input: 1148 DAG size of output: 115 [2018-07-25 08:37:31,583 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:33,832 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:35,445 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:35,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:35,454 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:35,753 WARN L169 SmtUtils]: Spent 4.42 s on a formula simplification. DAG size of input: 1150 DAG size of output: 97 [2018-07-25 08:37:39,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:39,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:39,549 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:40,441 WARN L169 SmtUtils]: Spent 4.39 s on a formula simplification. DAG size of input: 1253 DAG size of output: 122 [2018-07-25 08:37:41,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:42,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:42,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:42,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:44,182 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:45,853 WARN L169 SmtUtils]: Spent 4.79 s on a formula simplification. DAG size of input: 1136 DAG size of output: 125 [2018-07-25 08:37:46,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:47,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:49,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:49,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:49,355 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:50,318 WARN L169 SmtUtils]: Spent 4.09 s on a formula simplification. DAG size of input: 1135 DAG size of output: 143 [2018-07-25 08:37:53,893 WARN L169 SmtUtils]: Spent 3.33 s on a formula simplification. DAG size of input: 812 DAG size of output: 94 [2018-07-25 08:37:54,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:54,319 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:54,319 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 08:37:56,998 WARN L169 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 814 DAG size of output: 138 [2018-07-25 08:37:57,334 WARN L169 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 44 [2018-07-25 08:37:57,580 WARN L169 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 43 [2018-07-25 08:37:57,608 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:37:57,608 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:37:57,608 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-07-25 08:37:57,609 INFO L451 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-25 08:37:57,609 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-25 08:37:57,609 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2018-07-25 08:37:57,609 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 19 states. [2018-07-25 08:37:57,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:37:57,806 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-07-25 08:37:57,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-25 08:37:57,807 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 21 [2018-07-25 08:37:57,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:37:57,807 INFO L225 Difference]: With dead ends: 22 [2018-07-25 08:37:57,808 INFO L226 Difference]: Without dead ends: 0 [2018-07-25 08:37:57,808 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 45.6s TimeCoverageRelationStatistics Valid=173, Invalid=333, Unknown=0, NotChecked=0, Total=506 [2018-07-25 08:37:57,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-25 08:37:57,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-25 08:37:57,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-25 08:37:57,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-25 08:37:57,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-07-25 08:37:57,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:37:57,809 INFO L472 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-25 08:37:57,809 INFO L473 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-25 08:37:57,810 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-25 08:37:57,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-25 08:37:57,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-25 08:37:58,293 WARN L169 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 651 DAG size of output: 595 [2018-07-25 08:37:58,730 WARN L169 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 596 [2018-07-25 08:37:59,228 WARN L169 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 592 DAG size of output: 82 [2018-07-25 08:37:59,737 WARN L169 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 593 DAG size of output: 82 [2018-07-25 08:37:59,740 INFO L422 ceAbstractionStarter]: For program point L168(lines 168 183) no Hoare annotation was computed. [2018-07-25 08:37:59,740 INFO L422 ceAbstractionStarter]: For program point L135(lines 135 142) no Hoare annotation was computed. [2018-07-25 08:37:59,740 INFO L422 ceAbstractionStarter]: For program point L135-2(lines 111 160) no Hoare annotation was computed. [2018-07-25 08:37:59,740 INFO L422 ceAbstractionStarter]: For program point L94(lines 94 108) no Hoare annotation was computed. [2018-07-25 08:37:59,740 INFO L422 ceAbstractionStarter]: For program point L152(lines 152 160) no Hoare annotation was computed. [2018-07-25 08:37:59,740 INFO L422 ceAbstractionStarter]: For program point L103(lines 103 108) no Hoare annotation was computed. [2018-07-25 08:37:59,740 INFO L422 ceAbstractionStarter]: For program point L103-2(lines 89 142) no Hoare annotation was computed. [2018-07-25 08:37:59,740 INFO L422 ceAbstractionStarter]: For program point L178(lines 178 183) no Hoare annotation was computed. [2018-07-25 08:37:59,742 INFO L418 ceAbstractionStarter]: At program point L178-2(lines 163 183) the Hoare annotation is: (and (<= |Elevator_current'| Elevator_max) (let ((.cse9 (= 0 (+ |Elevator_dir'| 1))) (.cse1 (<= 0 Elevator_c3)) (.cse7 (<= |Elevator_goal'| Elevator_max)) (.cse3 (<= Elevator_min |Elevator_goal'|)) (.cse13 (<= (+ |Elevator_current'| 1) |Elevator_goal'|)) (.cse8 (<= (+ |Elevator_goal'| 1) |Elevator_current'|)) (.cse11 (< 0 Elevator_qDC1)) (.cse12 (<= Elevator_qDC1 1))) (or (let ((.cse2 (= Elevator_qDC2 2)) (.cse0 (= 1 |Elevator_dir'|)) (.cse6 (= Elevator_qDC1 2)) (.cse5 (= Elevator_qDC2 3))) (and (or (<= (+ |Elevator_goal'| |Elevator_dir'| 1) |Elevator_current'|) .cse0) (or .cse1 .cse2) (or (let ((.cse4 (= |Elevator_goal'| |Elevator_current'|))) (and (or (and .cse2 .cse3) .cse4) (or (not .cse4) (and (<= Elevator_c2 Elevator_c3) .cse5)) .cse6 .cse7 (or .cse8 (<= Elevator_qCSP 3)))) (and .cse2 .cse7 .cse0)) (or .cse9 .cse0) (let ((.cse10 (or .cse9 .cse13 .cse5))) (or (and .cse6 .cse10) (and .cse11 .cse10 .cse12))) (<= 3 Elevator_qCSP))) (let ((.cse15 (not (= Elevator_qCSP 1))) (.cse14 (<= Elevator_qCSP 2)) (.cse17 (= Elevator_qCSP 2)) (.cse16 (<= Elevator_qDC2 1))) (and (or .cse9 .cse14) (or .cse1 .cse15) (or (and (<= 1 Elevator_qDC2) .cse16) (and (or .cse13 .cse8) .cse7 .cse3 .cse15)) (or (and (or .cse13 (not .cse17)) .cse14) .cse8) (or (and (<= Elevator_qDC2 2) (<= 2 Elevator_qDC2)) (and (<= |Elevator_current'| |Elevator_goal'|) (<= |Elevator_goal'| |Elevator_current'|))) (or .cse17 .cse16 (and .cse11 .cse12)))))) (<= Elevator_min |Elevator_current'|)) [2018-07-25 08:37:59,742 INFO L422 ceAbstractionStarter]: For program point L129(lines 129 142) no Hoare annotation was computed. [2018-07-25 08:37:59,742 INFO L422 ceAbstractionStarter]: For program point L96(lines 96 108) no Hoare annotation was computed. [2018-07-25 08:37:59,742 INFO L422 ceAbstractionStarter]: For program point L80(lines 80 82) no Hoare annotation was computed. [2018-07-25 08:37:59,742 INFO L422 ceAbstractionStarter]: For program point L80-2(lines 80 85) no Hoare annotation was computed. [2018-07-25 08:37:59,742 INFO L422 ceAbstractionStarter]: For program point L171(lines 171 183) no Hoare annotation was computed. [2018-07-25 08:37:59,742 INFO L422 ceAbstractionStarter]: For program point L155(lines 155 160) no Hoare annotation was computed. [2018-07-25 08:37:59,742 INFO L422 ceAbstractionStarter]: For program point L155-2(lines 145 183) no Hoare annotation was computed. [2018-07-25 08:37:59,743 INFO L418 ceAbstractionStarter]: At program point ElevatorErr0ASSERT_VIOLATIONASSERT(line 185) the Hoare annotation is: false [2018-07-25 08:37:59,743 INFO L418 ceAbstractionStarter]: At program point L48-1(lines 13 188) the Hoare annotation is: (and (<= |Elevator_current'| Elevator_max) (let ((.cse9 (= 0 (+ |Elevator_dir'| 1))) (.cse1 (<= 0 Elevator_c3)) (.cse7 (<= |Elevator_goal'| Elevator_max)) (.cse3 (<= Elevator_min |Elevator_goal'|)) (.cse13 (<= (+ |Elevator_current'| 1) |Elevator_goal'|)) (.cse8 (<= (+ |Elevator_goal'| 1) |Elevator_current'|)) (.cse11 (< 0 Elevator_qDC1)) (.cse12 (<= Elevator_qDC1 1))) (or (let ((.cse2 (= Elevator_qDC2 2)) (.cse0 (= 1 |Elevator_dir'|)) (.cse6 (= Elevator_qDC1 2)) (.cse5 (= Elevator_qDC2 3))) (and (or (<= (+ |Elevator_goal'| |Elevator_dir'| 1) |Elevator_current'|) .cse0) (or .cse1 .cse2) (or (let ((.cse4 (= |Elevator_goal'| |Elevator_current'|))) (and (or (and .cse2 .cse3) .cse4) (or (not .cse4) (and (<= Elevator_c2 Elevator_c3) .cse5)) .cse6 .cse7 (or .cse8 (<= Elevator_qCSP 3)))) (and .cse2 .cse7 .cse0)) (or .cse9 .cse0) (let ((.cse10 (or .cse9 .cse13 .cse5))) (or (and .cse6 .cse10) (and .cse11 .cse10 .cse12))) (<= 3 Elevator_qCSP))) (let ((.cse15 (not (= Elevator_qCSP 1))) (.cse14 (<= Elevator_qCSP 2)) (.cse17 (= Elevator_qCSP 2)) (.cse16 (<= Elevator_qDC2 1))) (and (or .cse9 .cse14) (or .cse1 .cse15) (or (and (<= 1 Elevator_qDC2) .cse16) (and (or .cse13 .cse8) .cse7 .cse3 .cse15)) (or (and (or .cse13 (not .cse17)) .cse14) .cse8) (or (and (<= Elevator_qDC2 2) (<= 2 Elevator_qDC2)) (and (<= |Elevator_current'| |Elevator_goal'|) (<= |Elevator_goal'| |Elevator_current'|))) (or .cse17 .cse16 (and .cse11 .cse12)))))) (<= Elevator_min |Elevator_current'|)) [2018-07-25 08:37:59,743 INFO L422 ceAbstractionStarter]: For program point L123(lines 123 142) no Hoare annotation was computed. [2018-07-25 08:37:59,744 INFO L422 ceAbstractionStarter]: For program point L165(lines 165 183) no Hoare annotation was computed. [2018-07-25 08:37:59,744 INFO L422 ceAbstractionStarter]: For program point L99(lines 99 108) no Hoare annotation was computed. [2018-07-25 08:37:59,744 INFO L418 ceAbstractionStarter]: At program point ElevatorEXIT(lines 13 188) the Hoare annotation is: (and (<= |Elevator_current'| Elevator_max) (<= Elevator_min |Elevator_current'|)) [2018-07-25 08:37:59,744 INFO L422 ceAbstractionStarter]: For program point L91(lines 91 108) no Hoare annotation was computed. [2018-07-25 08:37:59,744 INFO L422 ceAbstractionStarter]: For program point L149(lines 149 160) no Hoare annotation was computed. [2018-07-25 08:37:59,744 INFO L422 ceAbstractionStarter]: For program point L116(lines 116 142) no Hoare annotation was computed. [2018-07-25 08:37:59,744 INFO L422 ceAbstractionStarter]: For program point L83-1(lines 83 108) no Hoare annotation was computed. [2018-07-25 08:37:59,744 INFO L425 ceAbstractionStarter]: At program point ElevatorENTRY(lines 13 188) the Hoare annotation is: true [2018-07-25 08:37:59,744 INFO L422 ceAbstractionStarter]: For program point L175(lines 175 183) no Hoare annotation was computed. [2018-07-25 08:37:59,745 INFO L422 ceAbstractionStarter]: For program point L101(lines 101 108) no Hoare annotation was computed. [2018-07-25 08:37:59,766 INFO L202 PluginConnector]: Adding new model Elevator-Integer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 08:37:59 BoogieIcfgContainer [2018-07-25 08:37:59,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 08:37:59,768 INFO L168 Benchmark]: Toolchain (without parser) took 116766.25 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -853.7 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-07-25 08:37:59,769 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 08:37:59,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.71 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 08:37:59,770 INFO L168 Benchmark]: Boogie Preprocessor took 32.67 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 08:37:59,771 INFO L168 Benchmark]: RCFGBuilder took 899.87 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. [2018-07-25 08:37:59,772 INFO L168 Benchmark]: TraceAbstraction took 115782.56 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -885.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-07-25 08:37:59,779 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 0.20 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 Procedure Inliner took 44.71 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 32.67 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 899.87 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 115782.56 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -885.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 185]: 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 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (current' <= max && (((((((goal' + dir' + 1 <= current' || 1 == dir') && (0 <= c3 || qDC2 == 2)) && (((((((qDC2 == 2 && min <= goal') || goal' == current') && (!(goal' == current') || (c2 <= c3 && qDC2 == 3))) && qDC1 == 2) && goal' <= max) && (goal' + 1 <= current' || qCSP <= 3)) || ((qDC2 == 2 && goal' <= max) && 1 == dir'))) && (0 == dir' + 1 || 1 == dir')) && ((qDC1 == 2 && ((0 == dir' + 1 || current' + 1 <= goal') || qDC2 == 3)) || ((0 < qDC1 && ((0 == dir' + 1 || current' + 1 <= goal') || qDC2 == 3)) && qDC1 <= 1))) && 3 <= qCSP) || ((((((0 == dir' + 1 || qCSP <= 2) && (0 <= c3 || !(qCSP == 1))) && ((1 <= qDC2 && qDC2 <= 1) || ((((current' + 1 <= goal' || goal' + 1 <= current') && goal' <= max) && min <= goal') && !(qCSP == 1)))) && (((current' + 1 <= goal' || !(qCSP == 2)) && qCSP <= 2) || goal' + 1 <= current')) && ((qDC2 <= 2 && 2 <= qDC2) || (current' <= goal' && goal' <= current'))) && ((qCSP == 2 || qDC2 <= 1) || (0 < qDC1 && qDC1 <= 1))))) && min <= current' - ProcedureContractResult [Line: 13]: Procedure Contract for Elevator Derived contract for procedure Elevator: current' <= max && min <= current' - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. SAFE Result, 115.6s OverallTime, 10 OverallIterations, 10 TraceHistogramMax, 5.2s AutomataDifference, 0.0s DeadEndRemovalTime, 1.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 132 SDslu, 4 SDs, 0 SdLazy, 176 SolverSat, 143 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 101.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=9, 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 23 NumberOfFragments, 459 HoareAnnotationTreeSize, 5 FomulaSimplifications, 1661 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 5 FomulaSimplificationsInter, 12972 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 106.1s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 375002 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 0/330 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/Elevator-Integer.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_08-37-59-803.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Elevator-Integer.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_08-37-59-803.csv Received shutdown request...