java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 13:25:58,871 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 13:25:58,873 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 13:25:58,893 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 13:25:58,893 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 13:25:58,896 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 13:25:58,898 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 13:25:58,901 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 13:25:58,903 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 13:25:58,904 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 13:25:58,905 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-07-25 13:25:58,940 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-07-25 13:25:58,956 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 13:25:58,956 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 13:25:58,958 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 13:25:58,958 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 13:25:58,961 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 13:25:58,961 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-25 13:25:58,961 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 13:25:58,962 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 13:25:59,017 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 13:25:59,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 13:25:59,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 13:25:59,044 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 13:25:59,045 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 13:25:59,046 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006.c.i_3.bpl [2018-07-25 13:25:59,046 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006.c.i_3.bpl' [2018-07-25 13:25:59,110 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 13:25:59,112 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 13:25:59,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 13:25:59,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 13:25:59,114 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 13:25:59,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:25:59" (1/1) ... [2018-07-25 13:25:59,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:25:59" (1/1) ... [2018-07-25 13:25:59,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 13:25:59,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 13:25:59,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 13:25:59,158 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 13:25:59,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:25:59" (1/1) ... [2018-07-25 13:25:59,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:25:59" (1/1) ... [2018-07-25 13:25:59,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:25:59" (1/1) ... [2018-07-25 13:25:59,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:25:59" (1/1) ... [2018-07-25 13:25:59,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:25:59" (1/1) ... [2018-07-25 13:25:59,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:25:59" (1/1) ... [2018-07-25 13:25:59,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:25:59" (1/1) ... [2018-07-25 13:25:59,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 13:25:59,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 13:25:59,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 13:25:59,183 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 13:25:59,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:25:59" (1/1) ... [2018-07-25 13:25:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 13:25:59,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 13:25:59,392 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 13:25:59,393 INFO L202 PluginConnector]: Adding new model jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:25:59 BoogieIcfgContainer [2018-07-25 13:25:59,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 13:25:59,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 13:25:59,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 13:25:59,399 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 13:25:59,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:25:59" (1/2) ... [2018-07-25 13:25:59,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4cc956 and model type jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 01:25:59, skipping insertion in model container [2018-07-25 13:25:59,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:25:59" (2/2) ... [2018-07-25 13:25:59,404 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006.c.i_3.bpl [2018-07-25 13:25:59,414 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-25 13:25:59,424 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 13:25:59,473 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 13:25:59,474 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 13:25:59,475 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 13:25:59,475 INFO L376 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-25 13:25:59,475 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 13:25:59,475 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 13:25:59,475 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 13:25:59,476 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 13:25:59,476 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 13:25:59,491 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 13:25:59,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 13:25:59,500 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:25:59,501 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 13:25:59,503 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:25:59,510 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-07-25 13:25:59,517 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:25:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:25:59,898 WARN L169 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2018-07-25 13:25:59,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 13:25:59,905 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:25:59,906 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:25:59,911 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:25:59,930 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:25:59,931 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:25:59,933 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-25 13:25:59,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:25:59,965 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-25 13:25:59,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:25:59,967 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-25 13:25:59,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:25:59,981 INFO L225 Difference]: With dead ends: 10 [2018-07-25 13:25:59,981 INFO L226 Difference]: Without dead ends: 7 [2018-07-25 13:25:59,990 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:26:00,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-25 13:26:00,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-25 13:26:00,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 13:26:00,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-25 13:26:00,039 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-25 13:26:00,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:26:00,040 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-25 13:26:00,040 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:26:00,040 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-25 13:26:00,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 13:26:00,040 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:26:00,041 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 13:26:00,041 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:26:00,041 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-07-25 13:26:00,042 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:26:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:26:00,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 13:26:00,118 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 13:26:00,119 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-25 13:26:00,124 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 13:26:00,125 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 13:26:00,125 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 13:26:00,126 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-25 13:26:00,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:26:00,150 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-25 13:26:00,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 13:26:00,151 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-25 13:26:00,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:26:00,152 INFO L225 Difference]: With dead ends: 11 [2018-07-25 13:26:00,152 INFO L226 Difference]: Without dead ends: 9 [2018-07-25 13:26:00,153 INFO L574 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 [2018-07-25 13:26:00,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-07-25 13:26:00,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-07-25 13:26:00,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-25 13:26:00,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-25 13:26:00,159 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-07-25 13:26:00,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:26:00,159 INFO L472 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-25 13:26:00,159 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 13:26:00,159 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-25 13:26:00,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 13:26:00,160 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:26:00,160 INFO L354 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-07-25 13:26:00,161 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:26:00,161 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-07-25 13:26:00,161 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:26:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:26:00,242 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 13:26:00,242 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 13:26:00,242 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-25 13:26:00,243 INFO L451 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-25 13:26:00,243 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-25 13:26:00,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-25 13:26:00,246 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-07-25 13:26:00,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:26:00,297 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-07-25 13:26:00,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 13:26:00,298 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-07-25 13:26:00,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:26:00,299 INFO L225 Difference]: With dead ends: 13 [2018-07-25 13:26:00,299 INFO L226 Difference]: Without dead ends: 11 [2018-07-25 13:26:00,300 INFO L574 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 [2018-07-25 13:26:00,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-07-25 13:26:00,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-07-25 13:26:00,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-25 13:26:00,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-07-25 13:26:00,306 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-07-25 13:26:00,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:26:00,306 INFO L472 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-07-25 13:26:00,306 INFO L473 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-25 13:26:00,307 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-07-25 13:26:00,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-25 13:26:00,307 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:26:00,307 INFO L354 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-07-25 13:26:00,308 INFO L415 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:26:00,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1946815861, now seen corresponding path program 3 times [2018-07-25 13:26:00,308 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:26:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:26:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 13:26:00,412 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 13:26:00,412 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-25 13:26:00,413 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 13:26:00,413 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 13:26:00,413 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-25 13:26:00,418 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 6 states. [2018-07-25 13:26:00,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:26:00,448 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-25 13:26:00,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 13:26:00,448 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-07-25 13:26:00,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:26:00,449 INFO L225 Difference]: With dead ends: 11 [2018-07-25 13:26:00,449 INFO L226 Difference]: Without dead ends: 0 [2018-07-25 13:26:00,451 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-25 13:26:00,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-25 13:26:00,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-25 13:26:00,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-25 13:26:00,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-25 13:26:00,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-07-25 13:26:00,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:26:00,454 INFO L472 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-25 13:26:00,454 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 13:26:00,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-25 13:26:00,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-25 13:26:00,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-25 13:26:00,537 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 1 54) the Hoare annotation is: false [2018-07-25 13:26:00,538 INFO L418 ceAbstractionStarter]: At program point L31(lines 31 43) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~y~5)) (.cse0 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~x~5))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-07-25 13:26:00,538 INFO L425 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 54) the Hoare annotation is: true [2018-07-25 13:26:00,538 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 54) no Hoare annotation was computed. [2018-07-25 13:26:00,541 INFO L418 ceAbstractionStarter]: At program point L51(lines 28 51) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~y~5)) (.cse0 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~x~5))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-07-25 13:26:00,541 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 53) the Hoare annotation is: false [2018-07-25 13:26:00,541 INFO L418 ceAbstractionStarter]: At program point L42(lines 42 52) the Hoare annotation is: false [2018-07-25 13:26:00,554 INFO L202 PluginConnector]: Adding new model jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 01:26:00 BoogieIcfgContainer [2018-07-25 13:26:00,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 13:26:00,555 INFO L168 Benchmark]: Toolchain (without parser) took 1443.50 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-07-25 13:26:00,556 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. [2018-07-25 13:26:00,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.80 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 13:26:00,558 INFO L168 Benchmark]: Boogie Preprocessor took 23.62 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 13:26:00,559 INFO L168 Benchmark]: RCFGBuilder took 210.79 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-25 13:26:00,561 INFO L168 Benchmark]: TraceAbstraction took 1159.01 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-25 13:26:00,566 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 Procedure Inliner took 42.80 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 23.62 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 210.79 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1159.01 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 53]: 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: 31]: Loop Invariant Derived loop invariant: main_~j~5 + main_~x~5 <= main_~i~5 + main_~y~5 && main_~i~5 + main_~y~5 <= main_~j~5 + main_~x~5 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: main_~j~5 + main_~x~5 <= main_~i~5 + main_~y~5 && main_~i~5 + main_~y~5 <= main_~j~5 + main_~x~5 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 14 SDs, 0 SdLazy, 27 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=3, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 34 HoareAnnotationTreeSize, 6 FomulaSimplifications, 134 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 84 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 2454 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/20 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/jm2006.c.i_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_13-26-00-590.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/jm2006.c.i_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_13-26-00-590.csv Received shutdown request...