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/toy/tooDifficultLoopInvariant/ValueTerminatedArrayIteration01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-935f392 [2018-07-23 13:55:57,183 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 13:55:57,186 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 13:55:57,204 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 13:55:57,204 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 13:55:57,206 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 13:55:57,208 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 13:55:57,210 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 13:55:57,213 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 13:55:57,213 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 13:55:57,216 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-07-23 13:55:57,267 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 13:55:57,294 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 13:55:57,295 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 13:55:57,296 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 13:55:57,297 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 13:55:57,297 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 13:55:57,297 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 13:55:57,300 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 13:55:57,301 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 13:55:57,368 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 13:55:57,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 13:55:57,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 13:55:57,392 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 13:55:57,393 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 13:55:57,394 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ValueTerminatedArrayIteration01.bpl [2018-07-23 13:55:57,394 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ValueTerminatedArrayIteration01.bpl' [2018-07-23 13:55:57,454 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 13:55:57,456 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 13:55:57,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 13:55:57,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 13:55:57,457 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 13:55:57,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:55:57" (1/1) ... [2018-07-23 13:55:57,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:55:57" (1/1) ... [2018-07-23 13:55:57,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:55:57" (1/1) ... [2018-07-23 13:55:57,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:55:57" (1/1) ... [2018-07-23 13:55:57,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:55:57" (1/1) ... [2018-07-23 13:55:57,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:55:57" (1/1) ... [2018-07-23 13:55:57,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:55:57" (1/1) ... [2018-07-23 13:55:57,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 13:55:57,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 13:55:57,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 13:55:57,515 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 13:55:57,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:55:57" (1/1) ... [2018-07-23 13:55:57,599 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-23 13:55:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 13:55:57,599 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 13:55:57,721 INFO L258 CfgBuilder]: Using library mode [2018-07-23 13:55:57,722 INFO L202 PluginConnector]: Adding new model ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:55:57 BoogieIcfgContainer [2018-07-23 13:55:57,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 13:55:57,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 13:55:57,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 13:55:57,727 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 13:55:57,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:55:57" (1/2) ... [2018-07-23 13:55:57,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33aab1bf and model type ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:55:57, skipping insertion in model container [2018-07-23 13:55:57,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:55:57" (2/2) ... [2018-07-23 13:55:57,731 INFO L112 eAbstractionObserver]: Analyzing ICFG ValueTerminatedArrayIteration01.bpl [2018-07-23 13:55:57,741 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 13:55:57,749 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 13:55:57,796 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 13:55:57,797 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 13:55:57,797 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 13:55:57,797 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 13:55:57,798 INFO L376 AbstractCegarLoop]: Backedges is CANONICAL [2018-07-23 13:55:57,798 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 13:55:57,798 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 13:55:57,798 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 13:55:57,799 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 13:55:57,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-07-23 13:55:57,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-23 13:55:57,822 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:57,824 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-23 13:55:57,824 INFO L414 AbstractCegarLoop]: === Iteration 1 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:57,830 INFO L82 PathProgramCache]: Analyzing trace with hash 29984, now seen corresponding path program 1 times [2018-07-23 13:55:57,836 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:57,906 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 13:55:57,908 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:55:57,909 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-07-23 13:55:57,911 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:57,911 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 13:55:57,912 INFO L185 omatonBuilderFactory]: Interpolants [8#true, 9#false, 10#(<= i end)] [2018-07-23 13:55:57,912 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 13:55:57,914 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 13:55:57,929 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 13:55:57,929 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 13:55:57,932 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-07-23 13:55:57,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:57,962 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-07-23 13:55:57,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 13:55:57,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-07-23 13:55:57,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:57,975 INFO L225 Difference]: With dead ends: 8 [2018-07-23 13:55:57,975 INFO L226 Difference]: Without dead ends: 5 [2018-07-23 13:55:57,979 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 13:55:57,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-23 13:55:58,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-23 13:55:58,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-23 13:55:58,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-23 13:55:58,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-07-23 13:55:58,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:58,013 INFO L471 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-23 13:55:58,013 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 13:55:58,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-23 13:55:58,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 13:55:58,014 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:58,015 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 13:55:58,015 INFO L414 AbstractCegarLoop]: === Iteration 2 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:58,015 INFO L82 PathProgramCache]: Analyzing trace with hash 927558, now seen corresponding path program 1 times [2018-07-23 13:55:58,015 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:58,101 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:58,101 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2018-07-23 13:55:58,102 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:58,102 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 13:55:58,103 INFO L185 omatonBuilderFactory]: Interpolants [37#true, 38#false, 39#(and (or (= 42 (select a end)) (not (= end i))) (< i (+ end 1))), 40#(<= i end)] [2018-07-23 13:55:58,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:58,104 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:55:58,105 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:55:58,105 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:55:58,106 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2018-07-23 13:55:58,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:58,128 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 13:55:58,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:55:58,128 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 13:55:58,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:58,129 INFO L225 Difference]: With dead ends: 8 [2018-07-23 13:55:58,129 INFO L226 Difference]: Without dead ends: 6 [2018-07-23 13:55:58,131 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:55:58,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-23 13:55:58,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-23 13:55:58,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-23 13:55:58,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-07-23 13:55:58,133 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-07-23 13:55:58,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:58,134 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-07-23 13:55:58,134 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:55:58,134 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-07-23 13:55:58,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-23 13:55:58,135 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:58,135 INFO L357 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-07-23 13:55:58,135 INFO L414 AbstractCegarLoop]: === Iteration 3 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:58,135 INFO L82 PathProgramCache]: Analyzing trace with hash 28752352, now seen corresponding path program 2 times [2018-07-23 13:55:58,136 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:58,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:58,299 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:58,299 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 13:55:58,300 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:58,300 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 13:55:58,300 INFO L185 omatonBuilderFactory]: Interpolants [69#true, 70#false, 71#(and (< i (+ end 1)) (= 42 (select a end))), 72#(and (or (= 42 (select a end)) (not (= end i))) (< i (+ end 1))), 73#(<= i end)] [2018-07-23 13:55:58,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:58,301 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 13:55:58,301 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 13:55:58,301 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:55:58,302 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 5 states. [2018-07-23 13:55:58,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:58,312 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2018-07-23 13:55:58,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 13:55:58,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2018-07-23 13:55:58,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:58,313 INFO L225 Difference]: With dead ends: 6 [2018-07-23 13:55:58,313 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 13:55:58,314 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:55:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 13:55:58,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 13:55:58,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 13:55:58,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 13:55:58,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-07-23 13:55:58,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:58,318 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 13:55:58,319 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 13:55:58,319 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 13:55:58,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 13:55:58,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 13:55:58,362 INFO L424 ceAbstractionStarter]: At program point mainENTRY(lines 11 21) the Hoare annotation is: true [2018-07-23 13:55:58,362 INFO L417 ceAbstractionStarter]: At program point L17(lines 17 19) the Hoare annotation is: (and (< i (+ end 1)) (= 42 (select a end))) [2018-07-23 13:55:58,363 INFO L417 ceAbstractionStarter]: At program point mainErr0AssertViolationASSERT(line 20) the Hoare annotation is: false [2018-07-23 13:55:58,363 INFO L421 ceAbstractionStarter]: For program point mainFINAL(lines 11 21) no Hoare annotation was computed. [2018-07-23 13:55:58,363 INFO L417 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (<= i end) [2018-07-23 13:55:58,363 INFO L417 ceAbstractionStarter]: At program point mainEXIT(lines 11 21) the Hoare annotation is: (<= i end) [2018-07-23 13:55:58,375 INFO L202 PluginConnector]: Adding new model ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:55:58 BoogieIcfgContainer [2018-07-23 13:55:58,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 13:55:58,376 INFO L168 Benchmark]: Toolchain (without parser) took 921.23 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. [2018-07-23 13:55:58,378 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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. [2018-07-23 13:55:58,379 INFO L168 Benchmark]: Boogie Preprocessor took 57.53 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. [2018-07-23 13:55:58,380 INFO L168 Benchmark]: RCFGBuilder took 207.10 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 13:55:58,381 INFO L168 Benchmark]: TraceAbstraction took 651.99 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 13:55:58,385 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 0.22 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 57.53 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 207.10 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 651.99 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: 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: 20]: 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: 17]: Loop Invariant Derived loop invariant: i < end + 1 && 42 == a[end] - ProcedureContractResult [Line: 11]: Procedure Contract for main Derived contract for procedure main: i <= end - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 16 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/4 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 9 NumberOfFragments, 19 HoareAnnotationTreeSize, 5 FomulaSimplifications, 50 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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/ValueTerminatedArrayIteration01.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_13-55-58-398.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ValueTerminatedArrayIteration01.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_13-55-58-398.csv Received shutdown request...