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/20170319-ConjunctivePathPrograms/jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:10:47,634 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:10:47,636 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:10:47,649 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:10:47,650 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:10:47,651 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:10:47,652 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:10:47,654 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:10:47,657 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:10:47,658 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:10:47,659 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-26 08:10:47,688 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-09-26 08:10:47,705 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:10:47,706 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:10:47,708 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 08:10:47,708 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 08:10:47,709 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:10:47,709 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-09-26 08:10:47,709 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 08:10:47,709 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:10:47,762 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:10:47,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:10:47,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:10:47,794 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:10:47,794 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:10:47,795 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl [2018-09-26 08:10:47,795 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl' [2018-09-26 08:10:47,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:10:47,854 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:10:47,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:10:47,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:10:47,855 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:10:47,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:10:47" (1/1) ... [2018-09-26 08:10:47,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:10:47" (1/1) ... [2018-09-26 08:10:47,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:10:47,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:10:47,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:10:47,901 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:10:47,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:10:47" (1/1) ... [2018-09-26 08:10:47,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:10:47" (1/1) ... [2018-09-26 08:10:47,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:10:47" (1/1) ... [2018-09-26 08:10:47,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:10:47" (1/1) ... [2018-09-26 08:10:47,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:10:47" (1/1) ... [2018-09-26 08:10:47,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:10:47" (1/1) ... [2018-09-26 08:10:47,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:10:47" (1/1) ... [2018-09-26 08:10:47,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:10:47,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:10:47,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:10:47,923 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:10:47,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:10:47" (1/1) ... [2018-09-26 08:10:48,021 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-26 08:10:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 08:10:48,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 08:10:48,176 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 08:10:48,177 INFO L202 PluginConnector]: Adding new model jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:10:48 BoogieIcfgContainer [2018-09-26 08:10:48,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:10:48,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:10:48,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:10:48,183 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:10:48,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:10:47" (1/2) ... [2018-09-26 08:10:48,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2514822 and model type jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:10:48, skipping insertion in model container [2018-09-26 08:10:48,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:10:48" (2/2) ... [2018-09-26 08:10:48,187 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl [2018-09-26 08:10:48,199 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:10:48,208 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:10:48,259 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:10:48,260 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:10:48,261 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:10:48,261 INFO L383 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-09-26 08:10:48,261 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:10:48,262 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:10:48,262 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:10:48,262 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:10:48,262 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:10:48,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-09-26 08:10:48,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-26 08:10:48,292 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:10:48,294 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-26 08:10:48,295 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:10:48,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:10:48,309 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2018-09-26 08:10:48,316 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:10:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:10:48,568 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2018-09-26 08:10:48,572 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 08:10:48,577 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:10:48,578 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 08:10:48,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 08:10:48,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 08:10:48,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 08:10:48,601 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-09-26 08:10:48,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:10:48,636 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-09-26 08:10:48,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 08:10:48,638 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-26 08:10:48,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:10:48,659 INFO L225 Difference]: With dead ends: 8 [2018-09-26 08:10:48,659 INFO L226 Difference]: Without dead ends: 5 [2018-09-26 08:10:48,664 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 08:10:48,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-09-26 08:10:48,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-09-26 08:10:48,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-09-26 08:10:48,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-09-26 08:10:48,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-09-26 08:10:48,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:10:48,703 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-09-26 08:10:48,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 08:10:48,704 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-09-26 08:10:48,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 08:10:48,704 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:10:48,705 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 08:10:48,705 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:10:48,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:10:48,705 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2018-09-26 08:10:48,706 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:10:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:10:48,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:10:48,795 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:10:48,795 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-09-26 08:10:48,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:10:48,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:10:48,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:10:48,798 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2018-09-26 08:10:48,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:10:48,828 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-09-26 08:10:48,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:10:48,831 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-09-26 08:10:48,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:10:48,832 INFO L225 Difference]: With dead ends: 8 [2018-09-26 08:10:48,832 INFO L226 Difference]: Without dead ends: 6 [2018-09-26 08:10:48,833 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:10:48,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-09-26 08:10:48,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-09-26 08:10:48,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-09-26 08:10:48,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-26 08:10:48,846 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-09-26 08:10:48,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:10:48,846 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-09-26 08:10:48,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:10:48,846 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-26 08:10:48,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 08:10:48,847 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:10:48,847 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-09-26 08:10:48,848 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:10:48,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:10:48,848 INFO L82 PathProgramCache]: Analyzing trace with hash 28844579, now seen corresponding path program 2 times [2018-09-26 08:10:48,848 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:10:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:10:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:10:48,921 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:10:48,922 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-09-26 08:10:48,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 08:10:48,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 08:10:48,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-26 08:10:48,923 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 5 states. [2018-09-26 08:10:48,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:10:48,984 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-09-26 08:10:48,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 08:10:48,985 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2018-09-26 08:10:48,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:10:48,985 INFO L225 Difference]: With dead ends: 9 [2018-09-26 08:10:48,985 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 08:10:48,986 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-26 08:10:48,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 08:10:48,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 08:10:48,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 08:10:48,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 08:10:48,991 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2018-09-26 08:10:48,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:10:48,991 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 08:10:48,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 08:10:48,991 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 08:10:48,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 08:10:48,992 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:10:48,992 INFO L375 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2018-09-26 08:10:48,992 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:10:48,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:10:48,993 INFO L82 PathProgramCache]: Analyzing trace with hash 894183756, now seen corresponding path program 3 times [2018-09-26 08:10:48,993 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:10:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:10:49,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:10:49,058 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:10:49,059 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-09-26 08:10:49,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 08:10:49,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 08:10:49,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-09-26 08:10:49,060 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-09-26 08:10:49,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:10:49,075 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-09-26 08:10:49,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 08:10:49,075 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-09-26 08:10:49,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:10:49,076 INFO L225 Difference]: With dead ends: 7 [2018-09-26 08:10:49,076 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 08:10:49,077 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-09-26 08:10:49,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 08:10:49,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 08:10:49,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 08:10:49,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 08:10:49,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-09-26 08:10:49,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:10:49,078 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 08:10:49,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 08:10:49,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 08:10:49,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 08:10:49,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 08:10:49,148 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 54) the Hoare annotation is: false [2018-09-26 08:10:49,148 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 1 55) the Hoare annotation is: false [2018-09-26 08:10:49,149 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 55) the Hoare annotation is: true [2018-09-26 08:10:49,149 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 55) no Hoare annotation was computed. [2018-09-26 08:10:49,149 INFO L422 ceAbstractionStarter]: At program point L43(lines 43 53) the Hoare annotation is: false [2018-09-26 08:10:49,150 INFO L422 ceAbstractionStarter]: At program point L52(lines 30 52) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~y~5)) (.cse0 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~x~5))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-09-26 08:10:49,164 INFO L202 PluginConnector]: Adding new model jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:10:49 BoogieIcfgContainer [2018-09-26 08:10:49,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:10:49,165 INFO L168 Benchmark]: Toolchain (without parser) took 1314.25 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 08:10:49,167 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 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 08:10:49,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.89 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 08:10:49,168 INFO L168 Benchmark]: Boogie Preprocessor took 21.92 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 08:10:49,169 INFO L168 Benchmark]: RCFGBuilder took 254.91 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 08:10:49,170 INFO L168 Benchmark]: TraceAbstraction took 985.76 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-26 08:10:49,174 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 0.23 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 44.89 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 21.92 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 254.91 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 985.76 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 54]: 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: 43]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: main_~j~5 + main_~x~5 <= main_~i~5 + main_~y~5 && main_~i~5 + main_~y~5 <= main_~j~5 + main_~x~5 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 6 SDs, 0 SdLazy, 27 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 19 HoareAnnotationTreeSize, 5 FomulaSimplifications, 74 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_08-10-49-195.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_08-10-49-195.csv Received shutdown request...