java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:19:05,307 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:19:05,309 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:19:05,322 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:19:05,322 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:19:05,323 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:19:05,325 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:19:05,334 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:19:05,336 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:19:05,337 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:19:05,338 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-26 08:19:05,390 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-09-26 08:19:05,403 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:19:05,404 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:19:05,409 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 08:19:05,409 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 08:19:05,409 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:19:05,410 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-09-26 08:19:05,410 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 08:19:05,410 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:19:05,475 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:19:05,492 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:19:05,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:19:05,500 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:19:05,501 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:19:05,502 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl [2018-09-26 08:19:05,502 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl' [2018-09-26 08:19:05,614 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:19:05,619 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:19:05,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:19:05,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:19:05,620 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:19:05,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:05" (1/1) ... [2018-09-26 08:19:05,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:05" (1/1) ... [2018-09-26 08:19:05,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:19:05,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:19:05,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:19:05,668 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:19:05,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:05" (1/1) ... [2018-09-26 08:19:05,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:05" (1/1) ... [2018-09-26 08:19:05,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:05" (1/1) ... [2018-09-26 08:19:05,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:05" (1/1) ... [2018-09-26 08:19:05,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:05" (1/1) ... [2018-09-26 08:19:05,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:05" (1/1) ... [2018-09-26 08:19:05,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:05" (1/1) ... [2018-09-26 08:19:05,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:19:05,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:19:05,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:19:05,713 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:19:05,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:05" (1/1) ... [2018-09-26 08:19:05,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 08:19:05,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 08:19:06,486 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 08:19:06,487 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:19:06 BoogieIcfgContainer [2018-09-26 08:19:06,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:19:06,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:19:06,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:19:06,495 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:19:06,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:05" (1/2) ... [2018-09-26 08:19:06,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c4bdd4 and model type pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:19:06, skipping insertion in model container [2018-09-26 08:19:06,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:19:06" (2/2) ... [2018-09-26 08:19:06,499 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl [2018-09-26 08:19:06,507 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:19:06,516 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:19:06,566 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:19:06,567 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:19:06,568 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:19:06,568 INFO L383 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-09-26 08:19:06,568 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:19:06,568 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:19:06,568 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:19:06,569 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:19:06,569 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:19:06,589 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-26 08:19:06,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 08:19:06,599 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:06,600 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 08:19:06,601 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:06,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:06,610 INFO L82 PathProgramCache]: Analyzing trace with hash 990345, now seen corresponding path program 1 times [2018-09-26 08:19:06,616 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:06,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:19:06,790 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:19:06,790 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 08:19:06,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:19:06,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:19:06,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:19:06,813 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-09-26 08:19:06,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:06,870 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-09-26 08:19:06,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:19:06,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-09-26 08:19:06,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:06,883 INFO L225 Difference]: With dead ends: 11 [2018-09-26 08:19:06,883 INFO L226 Difference]: Without dead ends: 8 [2018-09-26 08:19:06,887 INFO L605 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 [2018-09-26 08:19:06,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-26 08:19:06,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-09-26 08:19:06,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 08:19:06,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 08:19:06,923 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 08:19:06,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:06,924 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 08:19:06,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:19:06,924 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 08:19:06,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 08:19:06,925 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:06,925 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 08:19:06,925 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:06,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:06,926 INFO L82 PathProgramCache]: Analyzing trace with hash 951799901, now seen corresponding path program 1 times [2018-09-26 08:19:06,926 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:07,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:19:07,075 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:19:07,076 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-09-26 08:19:07,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 08:19:07,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 08:19:07,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-26 08:19:07,082 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2018-09-26 08:19:07,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:07,193 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-09-26 08:19:07,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 08:19:07,194 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2018-09-26 08:19:07,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:07,194 INFO L225 Difference]: With dead ends: 12 [2018-09-26 08:19:07,194 INFO L226 Difference]: Without dead ends: 10 [2018-09-26 08:19:07,198 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-26 08:19:07,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-09-26 08:19:07,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-09-26 08:19:07,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-26 08:19:07,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-09-26 08:19:07,203 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-09-26 08:19:07,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:07,206 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-09-26 08:19:07,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 08:19:07,207 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-09-26 08:19:07,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 08:19:07,207 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:07,207 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-09-26 08:19:07,208 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:07,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:07,208 INFO L82 PathProgramCache]: Analyzing trace with hash -148250831, now seen corresponding path program 2 times [2018-09-26 08:19:07,208 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:07,436 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:19:07,436 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:19:07,437 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-09-26 08:19:07,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 08:19:07,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 08:19:07,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-26 08:19:07,447 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 8 states. [2018-09-26 08:19:07,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:07,551 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-09-26 08:19:07,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 08:19:07,555 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-09-26 08:19:07,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:07,556 INFO L225 Difference]: With dead ends: 13 [2018-09-26 08:19:07,556 INFO L226 Difference]: Without dead ends: 11 [2018-09-26 08:19:07,557 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-09-26 08:19:07,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-09-26 08:19:07,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-09-26 08:19:07,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-09-26 08:19:07,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-09-26 08:19:07,569 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-09-26 08:19:07,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:07,571 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-09-26 08:19:07,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 08:19:07,571 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-09-26 08:19:07,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 08:19:07,572 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:07,572 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-09-26 08:19:07,573 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:07,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:07,573 INFO L82 PathProgramCache]: Analyzing trace with hash -735049467, now seen corresponding path program 3 times [2018-09-26 08:19:07,576 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:07,756 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:19:07,756 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:19:07,757 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-09-26 08:19:07,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 08:19:07,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 08:19:07,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-09-26 08:19:07,758 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2018-09-26 08:19:07,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:07,894 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-09-26 08:19:07,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 08:19:07,895 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-09-26 08:19:07,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:07,896 INFO L225 Difference]: With dead ends: 18 [2018-09-26 08:19:07,896 INFO L226 Difference]: Without dead ends: 16 [2018-09-26 08:19:07,898 INFO L605 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 [2018-09-26 08:19:07,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-26 08:19:07,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-09-26 08:19:07,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-26 08:19:07,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-26 08:19:07,908 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2018-09-26 08:19:07,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:07,909 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-26 08:19:07,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 08:19:07,909 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-26 08:19:07,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 08:19:07,911 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:07,911 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1] [2018-09-26 08:19:07,912 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:07,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:07,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1077400147, now seen corresponding path program 4 times [2018-09-26 08:19:07,914 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:08,130 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:19:08,131 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:19:08,131 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-09-26 08:19:08,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-26 08:19:08,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-26 08:19:08,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-26 08:19:08,133 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 9 states. [2018-09-26 08:19:08,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:08,416 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-09-26 08:19:08,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-26 08:19:08,416 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2018-09-26 08:19:08,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:08,417 INFO L225 Difference]: With dead ends: 22 [2018-09-26 08:19:08,417 INFO L226 Difference]: Without dead ends: 20 [2018-09-26 08:19:08,418 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-09-26 08:19:08,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-09-26 08:19:08,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2018-09-26 08:19:08,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-26 08:19:08,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-09-26 08:19:08,433 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2018-09-26 08:19:08,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:08,433 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-09-26 08:19:08,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-26 08:19:08,434 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-09-26 08:19:08,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-26 08:19:08,435 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:08,435 INFO L375 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1] [2018-09-26 08:19:08,435 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:08,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:08,436 INFO L82 PathProgramCache]: Analyzing trace with hash 602783317, now seen corresponding path program 5 times [2018-09-26 08:19:08,436 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-09-26 08:19:08,592 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:19:08,592 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-09-26 08:19:08,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:19:08,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:19:08,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:19:08,597 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 4 states. [2018-09-26 08:19:08,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:08,614 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-09-26 08:19:08,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:19:08,617 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-09-26 08:19:08,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:08,617 INFO L225 Difference]: With dead ends: 19 [2018-09-26 08:19:08,617 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 08:19:08,618 INFO L605 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 [2018-09-26 08:19:08,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 08:19:08,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 08:19:08,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 08:19:08,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 08:19:08,622 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-09-26 08:19:08,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:08,622 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 08:19:08,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:19:08,623 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 08:19:08,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 08:19:08,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 08:19:08,716 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 74 385) the Hoare annotation is: false [2018-09-26 08:19:08,716 INFO L426 ceAbstractionStarter]: For program point L318(lines 312 319) no Hoare annotation was computed. [2018-09-26 08:19:08,718 INFO L422 ceAbstractionStarter]: At program point L382(lines 252 382) the Hoare annotation is: (let ((.cse0 (<= ~r1 (* 256 (div ~r1 256))))) (or (and (not (= ~p2_old ~nomsg)) (<= 1 ~mode1) (<= ~mode1 1) (<= ~mode3 1) (<= 1 ~mode3) .cse0 (= 1 ULTIMATE.start_assert_~arg)) (and (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) (<= ~send2 127) (= ~mode2 (* 256 (div ~mode2 256))) (<= 0 ~send2) (= 0 (+ ~nomsg 1)) .cse0))) [2018-09-26 08:19:08,718 INFO L426 ceAbstractionStarter]: For program point L275(lines 270 276) no Hoare annotation was computed. [2018-09-26 08:19:08,718 INFO L426 ceAbstractionStarter]: For program point L298(lines 289 299) no Hoare annotation was computed. [2018-09-26 08:19:08,719 INFO L426 ceAbstractionStarter]: For program point L259(lines 259 271) no Hoare annotation was computed. [2018-09-26 08:19:08,719 INFO L426 ceAbstractionStarter]: For program point L323(lines 323 333) no Hoare annotation was computed. [2018-09-26 08:19:08,719 INFO L426 ceAbstractionStarter]: For program point L352(lines 352 359) no Hoare annotation was computed. [2018-09-26 08:19:08,719 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 384) the Hoare annotation is: false [2018-09-26 08:19:08,719 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 74 385) the Hoare annotation is: true [2018-09-26 08:19:08,720 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 74 385) no Hoare annotation was computed. [2018-09-26 08:19:08,720 INFO L422 ceAbstractionStarter]: At program point L379(lines 379 383) the Hoare annotation is: false [2018-09-26 08:19:08,720 INFO L426 ceAbstractionStarter]: For program point L280(lines 280 290) no Hoare annotation was computed. [2018-09-26 08:19:08,725 INFO L422 ceAbstractionStarter]: At program point L373(lines 373 380) the Hoare annotation is: (and (not (= ~p2_old ~nomsg)) (<= 1 ~mode1) (<= ~mode1 1) (<= ~mode3 1) (<= 1 ~mode3) (= 1 ULTIMATE.start_assert_~arg) (<= ~r1 (* 256 (div ~r1 256)))) [2018-09-26 08:19:08,725 INFO L426 ceAbstractionStarter]: For program point L338(lines 332 339) no Hoare annotation was computed. [2018-09-26 08:19:08,725 INFO L426 ceAbstractionStarter]: For program point L303(lines 303 313) no Hoare annotation was computed. [2018-09-26 08:19:08,726 INFO L426 ceAbstractionStarter]: For program point L363(lines 358 364) no Hoare annotation was computed. [2018-09-26 08:19:08,745 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:19:08 BoogieIcfgContainer [2018-09-26 08:19:08,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:19:08,747 INFO L168 Benchmark]: Toolchain (without parser) took 3131.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 232.5 MB). Peak memory consumption was 232.5 MB. Max. memory is 7.1 GB. [2018-09-26 08:19:08,749 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 08:19:08,750 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.56 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 08:19:08,751 INFO L168 Benchmark]: Boogie Preprocessor took 43.05 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 08:19:08,753 INFO L168 Benchmark]: RCFGBuilder took 775.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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. [2018-09-26 08:19:08,754 INFO L168 Benchmark]: TraceAbstraction took 2257.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-09-26 08:19:08,763 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 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.56 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.05 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 775.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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 2257.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 384]: 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: 252]: Loop Invariant Derived loop invariant: ((((((!(~p2_old == ~nomsg) && 1 <= ~mode1) && ~mode1 <= 1) && ~mode3 <= 1) && 1 <= ~mode3) && ~r1 <= 256 * (~r1 / 256)) && 1 == assert_~arg) || ((((((~mode3 == 256 * (~mode3 / 256) && ~mode1 == 256 * (~mode1 / 256)) && ~send2 <= 127) && ~mode2 == 256 * (~mode2 / 256)) && 0 <= ~send2) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: (((((!(~p2_old == ~nomsg) && 1 <= ~mode1) && ~mode1 <= 1) && ~mode3 <= 1) && 1 <= ~mode3) && 1 == assert_~arg) && ~r1 <= 256 * (~r1 / 256) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 6 OverallIterations, 8 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 20 SDslu, 38 SDs, 0 SdLazy, 148 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 99 HoareAnnotationTreeSize, 6 FomulaSimplifications, 6 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 53 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 5510 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 56/106 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.4.2.ufo.UNBOUNDED.pals.c_11.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_08-19-08-785.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c_11.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_08-19-08-785.csv Received shutdown request...