java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/matrix.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:17:03,921 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:17:03,923 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:17:03,936 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:17:03,937 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:17:03,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:17:03,939 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:17:03,941 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:17:03,942 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:17:03,943 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:17:03,944 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 08:17:03,944 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 08:17:03,945 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 08:17:03,946 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 08:17:03,947 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 08:17:03,948 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 08:17:03,949 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 08:17:03,951 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 08:17:03,953 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 08:17:03,954 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 08:17:03,955 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 08:17:03,956 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 08:17:03,959 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-26 08:17:03,967 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-09-26 08:17:03,985 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:17:03,985 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:17:03,991 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 08:17:03,991 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 08:17:03,991 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:17:03,991 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-09-26 08:17:03,991 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 08:17:03,992 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:17:04,045 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:17:04,058 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:17:04,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:17:04,063 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:17:04,063 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:17:04,064 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/matrix.i_4.bpl [2018-09-26 08:17:04,064 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/matrix.i_4.bpl' [2018-09-26 08:17:04,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:17:04,130 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:17:04,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:17:04,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:17:04,131 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:17:04,150 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 26.09 08:17:04" (1/1) ... [2018-09-26 08:17:04,166 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 26.09 08:17:04" (1/1) ... [2018-09-26 08:17:04,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:17:04,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:17:04,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:17:04,176 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:17:04,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:17:04" (1/1) ... [2018-09-26 08:17:04,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:17:04" (1/1) ... [2018-09-26 08:17:04,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:17:04" (1/1) ... [2018-09-26 08:17:04,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:17:04" (1/1) ... [2018-09-26 08:17:04,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:17:04" (1/1) ... [2018-09-26 08:17:04,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:17:04" (1/1) ... [2018-09-26 08:17:04,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:17:04" (1/1) ... [2018-09-26 08:17:04,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:17:04,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:17:04,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:17:04,202 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:17:04,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:17:04" (1/1) ... [2018-09-26 08:17:04,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 08:17:04,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 08:17:04,483 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 08:17:04,483 INFO L202 PluginConnector]: Adding new model matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:17:04 BoogieIcfgContainer [2018-09-26 08:17:04,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:17:04,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:17:04,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:17:04,488 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:17:04,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:17:04" (1/2) ... [2018-09-26 08:17:04,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6361e1 and model type matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:17:04, skipping insertion in model container [2018-09-26 08:17:04,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:17:04" (2/2) ... [2018-09-26 08:17:04,493 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix.i_4.bpl [2018-09-26 08:17:04,503 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:17:04,511 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:17:04,556 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:17:04,557 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:17:04,557 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:17:04,557 INFO L383 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-09-26 08:17:04,558 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:17:04,558 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:17:04,558 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:17:04,558 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:17:04,558 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:17:04,574 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-09-26 08:17:04,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 08:17:04,583 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:17:04,585 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 08:17:04,586 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:17:04,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:17:04,593 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-09-26 08:17:04,600 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:17:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:17:04,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:17:04,707 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:17:04,707 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 08:17:04,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 08:17:04,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 08:17:04,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 08:17:04,731 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-09-26 08:17:04,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:17:04,794 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2018-09-26 08:17:04,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 08:17:04,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 08:17:04,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:17:04,808 INFO L225 Difference]: With dead ends: 17 [2018-09-26 08:17:04,809 INFO L226 Difference]: Without dead ends: 11 [2018-09-26 08:17:04,812 INFO L605 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 [2018-09-26 08:17:04,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-09-26 08:17:04,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2018-09-26 08:17:04,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-26 08:17:04,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-09-26 08:17:04,852 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2018-09-26 08:17:04,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:17:04,852 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-09-26 08:17:04,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 08:17:04,853 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2018-09-26 08:17:04,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 08:17:04,853 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:17:04,854 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-09-26 08:17:04,854 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:17:04,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:17:04,854 INFO L82 PathProgramCache]: Analyzing trace with hash 209100445, now seen corresponding path program 1 times [2018-09-26 08:17:04,855 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:17:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:17:04,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:17:04,902 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:17:04,902 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 08:17:04,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:17:04,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:17:04,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:17:04,905 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2018-09-26 08:17:04,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:17:04,964 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2018-09-26 08:17:04,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:17:04,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-09-26 08:17:04,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:17:04,966 INFO L225 Difference]: With dead ends: 17 [2018-09-26 08:17:04,966 INFO L226 Difference]: Without dead ends: 11 [2018-09-26 08:17:04,970 INFO L605 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 [2018-09-26 08:17:04,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-09-26 08:17:04,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-09-26 08:17:04,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-09-26 08:17:04,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2018-09-26 08:17:04,980 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2018-09-26 08:17:04,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:17:04,980 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2018-09-26 08:17:04,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:17:04,985 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2018-09-26 08:17:04,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 08:17:04,987 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:17:04,987 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2018-09-26 08:17:04,987 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:17:04,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:17:04,988 INFO L82 PathProgramCache]: Analyzing trace with hash -850198025, now seen corresponding path program 1 times [2018-09-26 08:17:04,988 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:17:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:17:05,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:17:05,338 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:17:05,344 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-09-26 08:17:05,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 08:17:05,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 08:17:05,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-26 08:17:05,345 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 6 states. [2018-09-26 08:17:05,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:17:05,534 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2018-09-26 08:17:05,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-26 08:17:05,534 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-09-26 08:17:05,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:17:05,535 INFO L225 Difference]: With dead ends: 15 [2018-09-26 08:17:05,535 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 08:17:05,536 INFO L605 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 [2018-09-26 08:17:05,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 08:17:05,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 08:17:05,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 08:17:05,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 08:17:05,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-09-26 08:17:05,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:17:05,540 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 08:17:05,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 08:17:05,540 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 08:17:05,542 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 08:17:05,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 08:17:05,748 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 71) no Hoare annotation was computed. [2018-09-26 08:17:05,749 INFO L422 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))) [2018-09-26 08:17:05,750 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 71) the Hoare annotation is: true [2018-09-26 08:17:05,750 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 71) no Hoare annotation was computed. [2018-09-26 08:17:05,751 INFO L422 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))) [2018-09-26 08:17:05,751 INFO L422 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))) [2018-09-26 08:17:05,752 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 48) the Hoare annotation is: false [2018-09-26 08:17:05,752 INFO L422 ceAbstractionStarter]: At program point L42(lines 42 47) the Hoare annotation is: false [2018-09-26 08:17:05,753 INFO L422 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))) [2018-09-26 08:17:05,768 INFO L202 PluginConnector]: Adding new model matrix.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:17:05 BoogieIcfgContainer [2018-09-26 08:17:05,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:17:05,770 INFO L168 Benchmark]: Toolchain (without parser) took 1643.47 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. [2018-09-26 08:17:05,778 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 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. [2018-09-26 08:17:05,779 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.39 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. [2018-09-26 08:17:05,781 INFO L168 Benchmark]: Boogie Preprocessor took 25.86 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. [2018-09-26 08:17:05,782 INFO L168 Benchmark]: RCFGBuilder took 282.06 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. [2018-09-26 08:17:05,783 INFO L168 Benchmark]: TraceAbstraction took 1283.56 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. [2018-09-26 08:17:05,788 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 0.15 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 44.39 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 25.86 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 282.06 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 1283.56 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. * 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, 1.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s 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-0-2018-09-26_08-17-05-814.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/matrix.i_4.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_08-17-05-814.csv Received shutdown request...