java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:27:23,560 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:27:23,562 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:27:23,580 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:27:23,581 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:27:23,582 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:27:23,584 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:27:23,587 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:27:23,590 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:27:23,591 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:27:23,592 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 15:27:23,592 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 15:27:23,600 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 15:27:23,601 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 15:27:23,605 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 15:27:23,606 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 15:27:23,607 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 15:27:23,610 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 15:27:23,613 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 15:27:23,617 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 15:27:23,619 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 15:27:23,620 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 15:27:23,626 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 15:27:23,626 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 15:27:23,627 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 15:27:23,628 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 15:27:23,629 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 15:27:23,630 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 15:27:23,632 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 15:27:23,635 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 15:27:23,635 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 15:27:23,636 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 15:27:23,640 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf [2018-07-23 15:27:23,665 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:27:23,665 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:27:23,666 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 15:27:23,667 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 15:27:23,667 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:27:23,668 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 15:27:23,668 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:27:23,668 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:27:23,743 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:27:23,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:27:23,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:27:23,763 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:27:23,764 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:27:23,764 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl [2018-07-23 15:27:23,765 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl' [2018-07-23 15:27:23,861 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:27:23,863 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:27:23,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:27:23,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:27:23,864 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:27:23,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:23" (1/1) ... [2018-07-23 15:27:23,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:23" (1/1) ... [2018-07-23 15:27:23,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:23" (1/1) ... [2018-07-23 15:27:23,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:23" (1/1) ... [2018-07-23 15:27:23,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:23" (1/1) ... [2018-07-23 15:27:23,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:23" (1/1) ... [2018-07-23 15:27:23,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:23" (1/1) ... [2018-07-23 15:27:23,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:27:23,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:27:23,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:27:23,958 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:27:23,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:23" (1/1) ... [2018-07-23 15:27:24,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 15:27:24,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 15:27:24,711 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 15:27:24,711 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:27:24 BoogieIcfgContainer [2018-07-23 15:27:24,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:27:24,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:27:24,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:27:24,716 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:27:24,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:23" (1/2) ... [2018-07-23 15:27:24,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7046f15d and model type pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:27:24, skipping insertion in model container [2018-07-23 15:27:24,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:27:24" (2/2) ... [2018-07-23 15:27:24,720 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl [2018-07-23 15:27:24,730 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:27:24,740 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 15:27:24,785 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:27:24,785 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:27:24,786 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:27:24,786 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 15:27:24,786 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:27:24,786 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:27:24,786 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:27:24,786 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:27:24,787 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:27:24,799 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 15:27:24,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 15:27:24,808 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:27:24,809 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 15:27:24,809 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:27:24,815 INFO L82 PathProgramCache]: Analyzing trace with hash 990345, now seen corresponding path program 1 times [2018-07-23 15:27:24,821 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:27:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:27:24,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:27:24,956 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:27:24,957 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 15:27:24,961 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:27:24,977 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:27:24,977 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:27:24,980 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 15:27:25,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:27:25,039 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-07-23 15:27:25,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 15:27:25,041 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 15:27:25,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:27:25,052 INFO L225 Difference]: With dead ends: 11 [2018-07-23 15:27:25,053 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 15:27:25,056 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:27:25,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 15:27:25,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-07-23 15:27:25,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 15:27:25,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 15:27:25,094 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 15:27:25,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:27:25,095 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 15:27:25,095 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:27:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 15:27:25,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 15:27:25,096 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:27:25,096 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 15:27:25,096 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:27:25,097 INFO L82 PathProgramCache]: Analyzing trace with hash 951799901, now seen corresponding path program 1 times [2018-07-23 15:27:25,097 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:27:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:27:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:27:25,210 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:27:25,210 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-23 15:27:25,214 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 15:27:25,214 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 15:27:25,214 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-23 15:27:25,215 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2018-07-23 15:27:25,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:27:25,338 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-07-23 15:27:25,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 15:27:25,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2018-07-23 15:27:25,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:27:25,342 INFO L225 Difference]: With dead ends: 12 [2018-07-23 15:27:25,342 INFO L226 Difference]: Without dead ends: 10 [2018-07-23 15:27:25,345 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 15:27:25,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-23 15:27:25,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-07-23 15:27:25,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 15:27:25,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-23 15:27:25,349 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-07-23 15:27:25,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:27:25,350 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-23 15:27:25,350 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 15:27:25,350 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-23 15:27:25,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 15:27:25,351 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:27:25,351 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-07-23 15:27:25,352 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:27:25,352 INFO L82 PathProgramCache]: Analyzing trace with hash -148250831, now seen corresponding path program 2 times [2018-07-23 15:27:25,353 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:27:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:27:25,532 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:27:25,533 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:27:25,533 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-23 15:27:25,535 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 15:27:25,535 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 15:27:25,536 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-23 15:27:25,536 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-07-23 15:27:25,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:27:25,664 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-07-23 15:27:25,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 15:27:25,664 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-07-23 15:27:25,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:27:25,665 INFO L225 Difference]: With dead ends: 14 [2018-07-23 15:27:25,665 INFO L226 Difference]: Without dead ends: 12 [2018-07-23 15:27:25,666 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-07-23 15:27:25,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-07-23 15:27:25,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2018-07-23 15:27:25,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-23 15:27:25,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-07-23 15:27:25,676 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-07-23 15:27:25,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:27:25,676 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-07-23 15:27:25,676 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 15:27:25,677 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-07-23 15:27:25,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-23 15:27:25,680 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:27:25,680 INFO L353 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-07-23 15:27:25,681 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:27:25,681 INFO L82 PathProgramCache]: Analyzing trace with hash -735049467, now seen corresponding path program 3 times [2018-07-23 15:27:25,682 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:27:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:27:25,888 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:27:25,890 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:27:25,890 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-23 15:27:25,890 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 15:27:25,891 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 15:27:25,891 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-23 15:27:25,892 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2018-07-23 15:27:26,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:27:26,010 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-07-23 15:27:26,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 15:27:26,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-07-23 15:27:26,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:27:26,013 INFO L225 Difference]: With dead ends: 16 [2018-07-23 15:27:26,013 INFO L226 Difference]: Without dead ends: 14 [2018-07-23 15:27:26,014 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-07-23 15:27:26,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-23 15:27:26,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-07-23 15:27:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-07-23 15:27:26,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-07-23 15:27:26,022 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-07-23 15:27:26,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:27:26,023 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-07-23 15:27:26,023 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 15:27:26,023 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-07-23 15:27:26,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-23 15:27:26,024 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:27:26,024 INFO L353 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1] [2018-07-23 15:27:26,024 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:27:26,025 INFO L82 PathProgramCache]: Analyzing trace with hash -2007822887, now seen corresponding path program 4 times [2018-07-23 15:27:26,025 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:27:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:27:26,159 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-23 15:27:26,160 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:27:26,160 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-07-23 15:27:26,160 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 15:27:26,161 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 15:27:26,161 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-07-23 15:27:26,164 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 9 states. [2018-07-23 15:27:26,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:27:26,245 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-07-23 15:27:26,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 15:27:26,246 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2018-07-23 15:27:26,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:27:26,247 INFO L225 Difference]: With dead ends: 17 [2018-07-23 15:27:26,247 INFO L226 Difference]: Without dead ends: 15 [2018-07-23 15:27:26,248 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-07-23 15:27:26,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-23 15:27:26,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-07-23 15:27:26,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-23 15:27:26,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-07-23 15:27:26,255 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-07-23 15:27:26,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:27:26,255 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-07-23 15:27:26,256 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 15:27:26,256 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-07-23 15:27:26,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 15:27:26,257 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:27:26,257 INFO L353 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1] [2018-07-23 15:27:26,257 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:27:26,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1077400147, now seen corresponding path program 5 times [2018-07-23 15:27:26,258 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:27:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:27:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-07-23 15:27:26,408 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:27:26,408 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 15:27:26,408 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:27:26,409 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:27:26,409 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:27:26,410 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2018-07-23 15:27:26,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:27:26,430 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-07-23 15:27:26,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 15:27:26,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-07-23 15:27:26,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:27:26,432 INFO L225 Difference]: With dead ends: 15 [2018-07-23 15:27:26,432 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 15:27:26,433 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:27:26,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 15:27:26,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 15:27:26,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 15:27:26,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 15:27:26,436 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-07-23 15:27:26,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:27:26,436 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 15:27:26,436 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:27:26,437 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 15:27:26,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 15:27:26,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 15:27:26,511 INFO L421 ceAbstractionStarter]: For program point L262(lines 262 273) no Hoare annotation was computed. [2018-07-23 15:27:26,512 INFO L421 ceAbstractionStarter]: For program point L283(lines 283 293) no Hoare annotation was computed. [2018-07-23 15:27:26,512 INFO L417 ceAbstractionStarter]: At program point L382(lines 382 389) the Hoare annotation is: false [2018-07-23 15:27:26,512 INFO L421 ceAbstractionStarter]: For program point L366(lines 361 367) no Hoare annotation was computed. [2018-07-23 15:27:26,514 INFO L417 ceAbstractionStarter]: At program point L388(lines 255 388) the Hoare annotation is: (let ((.cse0 (<= ~r1 0)) (.cse1 (<= 0 ~r1))) (or (and .cse0 (<= ~send3 127) (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) (= ~mode2 (* 256 (div ~mode2 256))) (= 0 (+ ~nomsg 1)) (= ~mode4 (* 256 (div ~mode4 256))) (<= 0 ~send3) .cse1) (and .cse0 (<= 1 ~mode4) (= ULTIMATE.start_assert_~arg 1) (<= 1 ~mode1) (<= ~mode1 1) (<= 1 ~mode2) (<= ~mode2 1) (<= ~mode4 1) .cse1 (not (= ~p3_old ~nomsg))))) [2018-07-23 15:27:26,514 INFO L421 ceAbstractionStarter]: For program point L321(lines 312 322) no Hoare annotation was computed. [2018-07-23 15:27:26,518 INFO L421 ceAbstractionStarter]: For program point L341(lines 335 342) no Hoare annotation was computed. [2018-07-23 15:27:26,518 INFO L421 ceAbstractionStarter]: For program point L326(lines 326 336) no Hoare annotation was computed. [2018-07-23 15:27:26,518 INFO L421 ceAbstractionStarter]: For program point L303(lines 303 313) no Hoare annotation was computed. [2018-07-23 15:27:26,518 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 74 391) the Hoare annotation is: true [2018-07-23 15:27:26,518 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 74 391) the Hoare annotation is: false [2018-07-23 15:27:26,519 INFO L421 ceAbstractionStarter]: For program point L278(lines 272 279) no Hoare annotation was computed. [2018-07-23 15:27:26,519 INFO L421 ceAbstractionStarter]: For program point L355(lines 355 362) no Hoare annotation was computed. [2018-07-23 15:27:26,519 INFO L417 ceAbstractionStarter]: At program point L376(lines 376 383) the Hoare annotation is: (and (<= ~r1 0) (<= 1 ~mode4) (= ULTIMATE.start_assert_~arg 1) (<= 1 ~mode1) (<= ~mode1 1) (<= 1 ~mode2) (<= ~mode2 1) (<= ~mode4 1) (<= 0 ~r1) (not (= ~p3_old ~nomsg))) [2018-07-23 15:27:26,520 INFO L421 ceAbstractionStarter]: For program point L298(lines 292 299) no Hoare annotation was computed. [2018-07-23 15:27:26,520 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startErr0AssertViolationASSERT(line 390) the Hoare annotation is: false [2018-07-23 15:27:26,520 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 74 391) no Hoare annotation was computed. [2018-07-23 15:27:26,537 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 03:27:26 BoogieIcfgContainer [2018-07-23 15:27:26,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 15:27:26,538 INFO L168 Benchmark]: Toolchain (without parser) took 2676.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-07-23 15:27:26,541 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 15:27:26,541 INFO L168 Benchmark]: Boogie Preprocessor took 89.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 15:27:26,542 INFO L168 Benchmark]: RCFGBuilder took 754.28 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. [2018-07-23 15:27:26,543 INFO L168 Benchmark]: TraceAbstraction took 1824.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-07-23 15:27:26,549 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 0.19 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 89.24 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 754.28 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 1824.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 390]: 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: 376]: Loop Invariant Derived loop invariant: ((((((((~r1 <= 0 && 1 <= ~mode4) && assert_~arg == 1) && 1 <= ~mode1) && ~mode1 <= 1) && 1 <= ~mode2) && ~mode2 <= 1) && ~mode4 <= 1) && 0 <= ~r1) && !(~p3_old == ~nomsg) - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 255]: Loop Invariant Derived loop invariant: ((((((((~r1 <= 0 && ~send3 <= 127) && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && ~mode2 == 256 * (~mode2 / 256)) && 0 == ~nomsg + 1) && ~mode4 == 256 * (~mode4 / 256)) && 0 <= ~send3) && 0 <= ~r1) || (((((((((~r1 <= 0 && 1 <= ~mode4) && assert_~arg == 1) && 1 <= ~mode1) && ~mode1 <= 1) && 1 <= ~mode2) && ~mode2 <= 1) && ~mode4 <= 1) && 0 <= ~r1) && !(~p3_old == ~nomsg)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 22 SDslu, 34 SDs, 0 SdLazy, 98 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=5, 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 115 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 3152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 34/70 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/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_15-27-26-562.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_15-27-26-562.csv Received shutdown request...