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/20170319-ConjunctivePathPrograms/count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:15:50,373 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:15:50,375 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:15:50,387 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:15:50,387 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:15:50,388 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:15:50,390 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:15:50,392 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:15:50,394 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:15:50,396 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:15:50,397 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-07-23 15:15:50,451 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 15:15:50,472 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:15:50,472 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:15:50,475 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 15:15:50,475 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 15:15:50,475 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:15:50,475 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 15:15:50,476 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:15:50,476 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:15:50,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:15:50,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:15:50,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:15:50,576 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:15:50,577 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:15:50,578 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl [2018-07-23 15:15:50,578 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl' [2018-07-23 15:15:50,627 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:15:50,628 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:15:50,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:15:50,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:15:50,629 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:15:50,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:15:50" (1/1) ... [2018-07-23 15:15:50,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:15:50" (1/1) ... [2018-07-23 15:15:50,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:15:50" (1/1) ... [2018-07-23 15:15:50,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:15:50" (1/1) ... [2018-07-23 15:15:50,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:15:50" (1/1) ... [2018-07-23 15:15:50,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:15:50" (1/1) ... [2018-07-23 15:15:50,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:15:50" (1/1) ... [2018-07-23 15:15:50,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:15:50,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:15:50,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:15:50,677 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:15:50,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:15:50" (1/1) ... [2018-07-23 15:15:50,762 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-07-23 15:15:50,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 15:15:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 15:15:50,949 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 15:15:50,950 INFO L202 PluginConnector]: Adding new model count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:15:50 BoogieIcfgContainer [2018-07-23 15:15:50,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:15:50,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:15:50,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:15:50,955 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:15:50,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:15:50" (1/2) ... [2018-07-23 15:15:50,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d254d8c and model type count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:15:50, skipping insertion in model container [2018-07-23 15:15:50,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:15:50" (2/2) ... [2018-07-23 15:15:50,960 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl [2018-07-23 15:15:50,970 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:15:50,977 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 15:15:51,016 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:15:51,017 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:15:51,017 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:15:51,017 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 15:15:51,017 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:15:51,017 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:15:51,018 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:15:51,018 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:15:51,018 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:15:51,036 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 15:15:51,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 15:15:51,045 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:15:51,046 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 15:15:51,048 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:15:51,053 INFO L82 PathProgramCache]: Analyzing trace with hash 947099, now seen corresponding path program 1 times [2018-07-23 15:15:51,060 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:15:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:15:51,130 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 15:15:51,132 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:15:51,133 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 15:15:51,137 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:15:51,149 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:15:51,149 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:15:51,152 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 15:15:51,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:15:51,199 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-07-23 15:15:51,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 15:15:51,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 15:15:51,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:15:51,212 INFO L225 Difference]: With dead ends: 11 [2018-07-23 15:15:51,212 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 15:15:51,216 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-23 15:15:51,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 15:15:51,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-07-23 15:15:51,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 15:15:51,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 15:15:51,253 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 15:15:51,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:15:51,253 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 15:15:51,254 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:15:51,254 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 15:15:51,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 15:15:51,254 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:15:51,255 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 15:15:51,255 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:15:51,255 INFO L82 PathProgramCache]: Analyzing trace with hash 910108837, now seen corresponding path program 1 times [2018-07-23 15:15:51,256 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:15:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:15:51,294 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 15:15:51,295 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:15:51,295 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-23 15:15:51,297 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 15:15:51,298 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 15:15:51,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-23 15:15:51,298 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-07-23 15:15:51,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:15:51,328 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-23 15:15:51,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 15:15:51,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-07-23 15:15:51,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:15:51,329 INFO L225 Difference]: With dead ends: 11 [2018-07-23 15:15:51,330 INFO L226 Difference]: Without dead ends: 9 [2018-07-23 15:15:51,331 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-23 15:15:51,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-07-23 15:15:51,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-07-23 15:15:51,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 15:15:51,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-23 15:15:51,335 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-07-23 15:15:51,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:15:51,336 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-23 15:15:51,336 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 15:15:51,336 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-23 15:15:51,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 15:15:51,337 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:15:51,337 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-07-23 15:15:51,337 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:15:51,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1558789329, now seen corresponding path program 2 times [2018-07-23 15:15:51,338 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:15:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:15:51,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:15:51,400 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:15:51,400 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-07-23 15:15:51,401 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 15:15:51,401 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 15:15:51,401 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-07-23 15:15:51,402 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2018-07-23 15:15:51,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:15:51,447 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 15:15:51,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 15:15:51,448 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2018-07-23 15:15:51,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:15:51,448 INFO L225 Difference]: With dead ends: 9 [2018-07-23 15:15:51,448 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 15:15:51,449 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-07-23 15:15:51,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 15:15:51,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 15:15:51,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 15:15:51,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 15:15:51,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-07-23 15:15:51,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:15:51,451 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 15:15:51,451 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 15:15:51,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 15:15:51,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 15:15:51,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 15:15:51,535 INFO L417 ceAbstractionStarter]: At program point L40(lines 15 40) the Hoare annotation is: (or (<= ULTIMATE.start_main_~i~4 0) (and (<= ULTIMATE.start_main_~i~4 1000000) (= ULTIMATE.start___VERIFIER_assert_~cond 1))) [2018-07-23 15:15:51,535 INFO L417 ceAbstractionStarter]: At program point L32(lines 32 41) the Hoare annotation is: (and (= ULTIMATE.start___VERIFIER_assert_~cond 1) (<= ULTIMATE.start_main_~i~4 999999)) [2018-07-23 15:15:51,536 INFO L417 ceAbstractionStarter]: At program point L43(lines 43 44) the Hoare annotation is: false [2018-07-23 15:15:51,536 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startErr0AssertViolationASSERT(line 45) the Hoare annotation is: false [2018-07-23 15:15:51,536 INFO L421 ceAbstractionStarter]: For program point L18(lines 18 25) no Hoare annotation was computed. [2018-07-23 15:15:51,536 INFO L421 ceAbstractionStarter]: For program point L28(lines 24 29) no Hoare annotation was computed. [2018-07-23 15:15:51,536 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 46) the Hoare annotation is: true [2018-07-23 15:15:51,537 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 46) no Hoare annotation was computed. [2018-07-23 15:15:51,537 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 1 46) the Hoare annotation is: false [2018-07-23 15:15:51,550 INFO L202 PluginConnector]: Adding new model count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 03:15:51 BoogieIcfgContainer [2018-07-23 15:15:51,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 15:15:51,551 INFO L168 Benchmark]: Toolchain (without parser) took 923.95 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 15:15:51,554 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. [2018-07-23 15:15:51,555 INFO L168 Benchmark]: Boogie Preprocessor took 47.56 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 15:15:51,555 INFO L168 Benchmark]: RCFGBuilder took 273.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 15:15:51,557 INFO L168 Benchmark]: TraceAbstraction took 599.33 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 15:15:51,561 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 Preprocessor took 47.56 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 273.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 599.33 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 45]: 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: 15]: Loop Invariant Derived loop invariant: main_~i~4 <= 0 || (main_~i~4 <= 1000000 && __VERIFIER_assert_~cond == 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: __VERIFIER_assert_~cond == 1 && main_~i~4 <= 999999 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: false - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 3 SDslu, 12 SDs, 0 SdLazy, 23 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=2, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 22 HoareAnnotationTreeSize, 6 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 26 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 265 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 1/8 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/count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_15-15-51-574.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_by_1_variant.i_2.bplTransformedIcfg_BEv2_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_15-15-51-574.csv Received shutdown request...