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/matrix.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 08:47:18,528 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 08:47:18,531 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 08:47:18,550 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 08:47:18,551 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 08:47:18,552 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 08:47:18,555 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 08:47:18,558 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 08:47:18,560 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 08:47:18,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 08:47:18,569 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 08:47:18,570 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 08:47:18,573 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 08:47:18,574 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 08:47:18,578 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 08:47:18,579 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 08:47:18,580 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 08:47:18,585 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 08:47:18,589 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 08:47:18,591 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 08:47:18,595 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 08:47:18,598 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 08:47:18,601 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 08:47:18,601 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 08:47:18,601 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 08:47:18,604 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 08:47:18,605 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 08:47:18,606 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 08:47:18,607 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 08:47:18,608 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 08:47:18,610 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 08:47:18,611 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-25 08:47:18,615 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-07-25 08:47:18,640 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 08:47:18,641 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 08:47:18,643 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 08:47:18,644 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 08:47:18,644 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 08:47:18,644 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-25 08:47:18,644 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 08:47:18,645 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 08:47:18,710 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 08:47:18,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 08:47:18,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 08:47:18,734 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 08:47:18,735 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 08:47:18,736 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/matrix.i_4.bpl [2018-07-25 08:47:18,736 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/matrix.i_4.bpl' [2018-07-25 08:47:18,824 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 08:47:18,826 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 08:47:18,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 08:47:18,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 08:47:18,828 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 08:47:18,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:47:18" (1/1) ... [2018-07-25 08:47:18,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:47:18" (1/1) ... [2018-07-25 08:47:18,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 08:47:18,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 08:47:18,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 08:47:18,877 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 08:47:18,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:47:18" (1/1) ... [2018-07-25 08:47:18,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:47:18" (1/1) ... [2018-07-25 08:47:18,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:47:18" (1/1) ... [2018-07-25 08:47:18,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:47:18" (1/1) ... [2018-07-25 08:47:18,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:47:18" (1/1) ... [2018-07-25 08:47:18,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:47:18" (1/1) ... [2018-07-25 08:47:18,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:47:18" (1/1) ... [2018-07-25 08:47:18,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 08:47:18,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 08:47:18,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 08:47:18,903 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 08:47:18,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:47:18" (1/1) ... [2018-07-25 08:47:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 08:47:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 08:47:19,150 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 08:47:19,151 INFO L202 PluginConnector]: Adding new model matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:47:19 BoogieIcfgContainer [2018-07-25 08:47:19,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 08:47:19,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 08:47:19,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 08:47:19,156 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 08:47:19,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:47:18" (1/2) ... [2018-07-25 08:47:19,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59471a94 and model type matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 08:47:19, skipping insertion in model container [2018-07-25 08:47:19,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:47:19" (2/2) ... [2018-07-25 08:47:19,160 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix.i_4.bpl [2018-07-25 08:47:19,170 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-25 08:47:19,178 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 08:47:19,225 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 08:47:19,226 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 08:47:19,226 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 08:47:19,226 INFO L376 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-25 08:47:19,226 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 08:47:19,226 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 08:47:19,227 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 08:47:19,227 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 08:47:19,227 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 08:47:19,239 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-07-25 08:47:19,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 08:47:19,248 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:47:19,249 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 08:47:19,250 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:47:19,256 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-07-25 08:47:19,262 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:47:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:47:19,361 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 08:47:19,363 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:47:19,363 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 08:47:19,367 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 08:47:19,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 08:47:19,379 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 08:47:19,381 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-07-25 08:47:19,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:47:19,445 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2018-07-25 08:47:19,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 08:47:19,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-25 08:47:19,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:47:19,460 INFO L225 Difference]: With dead ends: 17 [2018-07-25 08:47:19,460 INFO L226 Difference]: Without dead ends: 11 [2018-07-25 08:47:19,464 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 08:47:19,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-07-25 08:47:19,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2018-07-25 08:47:19,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-25 08:47:19,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-07-25 08:47:19,508 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2018-07-25 08:47:19,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:47:19,509 INFO L472 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-07-25 08:47:19,509 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 08:47:19,510 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2018-07-25 08:47:19,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 08:47:19,510 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:47:19,512 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-07-25 08:47:19,512 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:47:19,513 INFO L82 PathProgramCache]: Analyzing trace with hash 209100445, now seen corresponding path program 1 times [2018-07-25 08:47:19,513 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:47:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:47:19,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:47:19,590 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:47:19,590 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 08:47:19,592 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:47:19,593 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:47:19,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:47:19,593 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2018-07-25 08:47:19,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:47:19,623 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2018-07-25 08:47:19,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:47:19,624 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-07-25 08:47:19,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:47:19,625 INFO L225 Difference]: With dead ends: 17 [2018-07-25 08:47:19,625 INFO L226 Difference]: Without dead ends: 11 [2018-07-25 08:47:19,626 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:47:19,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-07-25 08:47:19,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-07-25 08:47:19,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-25 08:47:19,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2018-07-25 08:47:19,632 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2018-07-25 08:47:19,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:47:19,632 INFO L472 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2018-07-25 08:47:19,632 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:47:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2018-07-25 08:47:19,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-25 08:47:19,633 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:47:19,633 INFO L354 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2018-07-25 08:47:19,634 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:47:19,634 INFO L82 PathProgramCache]: Analyzing trace with hash -850198025, now seen corresponding path program 1 times [2018-07-25 08:47:19,634 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:47:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:47:19,928 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 19 [2018-07-25 08:47:19,944 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:47:19,944 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:47:19,944 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-25 08:47:19,945 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 08:47:19,945 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 08:47:19,946 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-25 08:47:19,946 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 6 states. [2018-07-25 08:47:20,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:47:20,041 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2018-07-25 08:47:20,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-25 08:47:20,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-07-25 08:47:20,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:47:20,042 INFO L225 Difference]: With dead ends: 15 [2018-07-25 08:47:20,043 INFO L226 Difference]: Without dead ends: 0 [2018-07-25 08:47:20,043 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-25 08:47:20,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-25 08:47:20,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-25 08:47:20,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-25 08:47:20,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-25 08:47:20,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-07-25 08:47:20,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:47:20,045 INFO L472 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-25 08:47:20,046 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 08:47:20,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-25 08:47:20,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-25 08:47:20,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-25 08:47:20,276 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 71) no Hoare annotation was computed. [2018-07-25 08:47:20,277 INFO L418 ceAbstractionStarter]: At program point L32(lines 32 43) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~N_LIN~5)) (.cse1 (<= ULTIMATE.start_main_~N_LIN~5 1))) (or (and (<= (select (select ULTIMATE.start_main_~matriz~5 0) 0) ULTIMATE.start_main_~maior~5) .cse0 .cse1) (and (<= 0 ULTIMATE.start_main_~j~5) (<= (+ ULTIMATE.start_main_~j~5 1) ULTIMATE.start_main_~N_COL~5) .cse0 (<= ULTIMATE.start_main_~N_COL~5 1) .cse1))) [2018-07-25 08:47:20,278 INFO L425 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 71) the Hoare annotation is: true [2018-07-25 08:47:20,278 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 71) no Hoare annotation was computed. [2018-07-25 08:47:20,278 INFO L418 ceAbstractionStarter]: At program point L59(lines 29 59) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~N_LIN~5)) (.cse1 (<= ULTIMATE.start_main_~N_LIN~5 1))) (or (and (<= (select (select ULTIMATE.start_main_~matriz~5 0) 0) ULTIMATE.start_main_~maior~5) .cse0 .cse1) (and (<= 0 ULTIMATE.start_main_~j~5) (<= (+ ULTIMATE.start_main_~j~5 1) ULTIMATE.start_main_~N_COL~5) .cse0 (<= ULTIMATE.start_main_~N_COL~5 1) .cse1))) [2018-07-25 08:47:20,279 INFO L418 ceAbstractionStarter]: At program point L51(lines 51 60) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~N_LIN~5 1))) (or (and (<= (select (select ULTIMATE.start_main_~matriz~5 0) 0) ULTIMATE.start_main_~maior~5) (<= 1 ULTIMATE.start_main_~N_LIN~5) .cse0) (and (< 0 (+ (div ULTIMATE.start_main_~j~5 4294967296) 1)) (<= (+ ULTIMATE.start_main_~k~5 1) ULTIMATE.start_main_~N_LIN~5) (<= 0 ULTIMATE.start_main_~k~5) (<= ULTIMATE.start_main_~j~5 0) .cse0))) [2018-07-25 08:47:20,280 INFO L418 ceAbstractionStarter]: At program point L42(lines 42 47) the Hoare annotation is: false [2018-07-25 08:47:20,280 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 48) the Hoare annotation is: false [2018-07-25 08:47:20,281 INFO L418 ceAbstractionStarter]: At program point L70(lines 46 70) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~N_LIN~5 1))) (or (and (<= (select (select ULTIMATE.start_main_~matriz~5 0) 0) ULTIMATE.start_main_~maior~5) (<= 1 ULTIMATE.start_main_~N_LIN~5) .cse0) (and (< 0 (+ (div ULTIMATE.start_main_~j~5 4294967296) 1)) (<= (+ ULTIMATE.start_main_~k~5 1) ULTIMATE.start_main_~N_LIN~5) (<= 0 ULTIMATE.start_main_~k~5) (<= ULTIMATE.start_main_~j~5 0) .cse0))) [2018-07-25 08:47:20,295 INFO L202 PluginConnector]: Adding new model matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 08:47:20 BoogieIcfgContainer [2018-07-25 08:47:20,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 08:47:20,296 INFO L168 Benchmark]: Toolchain (without parser) took 1471.74 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-07-25 08:47:20,298 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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 08:47:20,299 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.68 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 08:47:20,300 INFO L168 Benchmark]: Boogie Preprocessor took 25.40 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 08:47:20,300 INFO L168 Benchmark]: RCFGBuilder took 248.81 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. [2018-07-25 08:47:20,301 INFO L168 Benchmark]: TraceAbstraction took 1143.42 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-07-25 08:47:20,306 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.68 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 25.40 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 248.81 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 1143.42 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 42]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((main_~matriz~5[0][0] <= main_~maior~5 && 1 <= main_~N_LIN~5) && main_~N_LIN~5 <= 1) || ((((0 <= main_~j~5 && main_~j~5 + 1 <= main_~N_COL~5) && 1 <= main_~N_LIN~5) && main_~N_COL~5 <= 1) && main_~N_LIN~5 <= 1) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((main_~matriz~5[0][0] <= main_~maior~5 && 1 <= main_~N_LIN~5) && main_~N_LIN~5 <= 1) || ((((0 <= main_~j~5 && main_~j~5 + 1 <= main_~N_COL~5) && 1 <= main_~N_LIN~5) && main_~N_COL~5 <= 1) && main_~N_LIN~5 <= 1) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((main_~matriz~5[0][0] <= main_~maior~5 && 1 <= main_~N_LIN~5) && main_~N_LIN~5 <= 1) || ((((0 < main_~j~5 / 4294967296 + 1 && main_~k~5 + 1 <= main_~N_LIN~5) && 0 <= main_~k~5) && main_~j~5 <= 0) && main_~N_LIN~5 <= 1) - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: ((main_~matriz~5[0][0] <= main_~maior~5 && 1 <= main_~N_LIN~5) && main_~N_LIN~5 <= 1) || ((((0 < main_~j~5 / 4294967296 + 1 && main_~k~5 + 1 <= main_~N_LIN~5) && 0 <= main_~k~5) && main_~j~5 <= 0) && main_~N_LIN~5 <= 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 17 SDslu, 18 SDs, 0 SdLazy, 31 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 19 NumberOfFragments, 143 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 122 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1541 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 2/6 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/matrix.i_4.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_08-47-20-321.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/matrix.i_4.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_08-47-20-321.csv Received shutdown request...