java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006_variant.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:25:08,438 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:25:08,441 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:25:08,454 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:25:08,454 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:25:08,455 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:25:08,457 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:25:08,458 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:25:08,460 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:25:08,461 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:25:08,463 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-07-23 15:25:08,498 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 15:25:08,498 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 15:25:08,499 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 15:25:08,501 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 15:25:08,502 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 15:25:08,503 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 15:25:08,504 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 15:25:08,504 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 15:25:08,505 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 15:25:08,513 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf [2018-07-23 15:25:08,527 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:25:08,527 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:25:08,528 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 15:25:08,528 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 15:25:08,529 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:25:08,529 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 15:25:08,529 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:25:08,529 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:25:08,574 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:25:08,587 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:25:08,591 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:25:08,592 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:25:08,593 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:25:08,594 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006_variant.c.i_3.bpl [2018-07-23 15:25:08,594 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006_variant.c.i_3.bpl' [2018-07-23 15:25:08,650 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:25:08,652 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:25:08,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:25:08,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:25:08,653 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:25:08,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:25:08" (1/1) ... [2018-07-23 15:25:08,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:25:08" (1/1) ... [2018-07-23 15:25:08,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:25:08" (1/1) ... [2018-07-23 15:25:08,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:25:08" (1/1) ... [2018-07-23 15:25:08,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:25:08" (1/1) ... [2018-07-23 15:25:08,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:25:08" (1/1) ... [2018-07-23 15:25:08,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:25:08" (1/1) ... [2018-07-23 15:25:08,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:25:08,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:25:08,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:25:08,704 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:25:08,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:25:08" (1/1) ... [2018-07-23 15:25:08,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 15:25:08,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 15:25:08,973 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 15:25:08,974 INFO L202 PluginConnector]: Adding new model jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:25:08 BoogieIcfgContainer [2018-07-23 15:25:08,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:25:08,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:25:08,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:25:08,981 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:25:08,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:25:08" (1/2) ... [2018-07-23 15:25:08,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f8c89 and model type jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:25:08, skipping insertion in model container [2018-07-23 15:25:08,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:25:08" (2/2) ... [2018-07-23 15:25:08,987 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_variant.c.i_3.bpl [2018-07-23 15:25:09,000 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:25:09,010 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 15:25:09,070 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:25:09,071 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:25:09,071 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:25:09,071 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 15:25:09,071 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:25:09,072 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:25:09,072 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:25:09,072 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:25:09,072 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:25:09,089 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 15:25:09,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 15:25:09,099 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:25:09,100 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 15:25:09,100 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:25:09,108 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-07-23 15:25:09,116 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:25:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:25:09,414 WARN L169 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2018-07-23 15:25:09,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:25:09,427 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:25:09,428 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 15:25:09,433 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 15:25:09,446 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 15:25:09,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 15:25:09,450 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-23 15:25:09,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:25:09,482 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 15:25:09,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 15:25:09,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-23 15:25:09,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:25:09,496 INFO L225 Difference]: With dead ends: 10 [2018-07-23 15:25:09,496 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 15:25:09,500 INFO L573 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 [2018-07-23 15:25:09,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 15:25:09,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 15:25:09,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 15:25:09,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 15:25:09,539 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 15:25:09,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:25:09,540 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 15:25:09,540 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 15:25:09,540 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 15:25:09,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 15:25:09,541 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:25:09,541 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 15:25:09,541 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:25:09,541 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-07-23 15:25:09,542 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:25:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:25:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:25:09,632 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:25:09,632 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 15:25:09,636 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:25:09,637 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:25:09,637 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:25:09,637 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-23 15:25:09,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:25:09,671 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-23 15:25:09,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 15:25:09,674 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-23 15:25:09,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:25:09,674 INFO L225 Difference]: With dead ends: 11 [2018-07-23 15:25:09,674 INFO L226 Difference]: Without dead ends: 9 [2018-07-23 15:25:09,677 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:25:09,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-07-23 15:25:09,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-07-23 15:25:09,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 15:25:09,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-23 15:25:09,687 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-07-23 15:25:09,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:25:09,687 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-23 15:25:09,687 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:25:09,688 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-23 15:25:09,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 15:25:09,689 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:25:09,689 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-07-23 15:25:09,689 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:25:09,690 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-07-23 15:25:09,690 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:25:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:25:09,748 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:25:09,749 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:25:09,749 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-23 15:25:09,750 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 15:25:09,750 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 15:25:09,750 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-23 15:25:09,751 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-07-23 15:25:09,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:25:09,802 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-07-23 15:25:09,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 15:25:09,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-07-23 15:25:09,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:25:09,804 INFO L225 Difference]: With dead ends: 13 [2018-07-23 15:25:09,805 INFO L226 Difference]: Without dead ends: 11 [2018-07-23 15:25:09,805 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-23 15:25:09,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-07-23 15:25:09,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-07-23 15:25:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-23 15:25:09,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-07-23 15:25:09,818 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-07-23 15:25:09,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:25:09,818 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-07-23 15:25:09,818 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 15:25:09,818 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-07-23 15:25:09,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-23 15:25:09,819 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:25:09,819 INFO L353 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-07-23 15:25:09,820 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:25:09,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1946815861, now seen corresponding path program 3 times [2018-07-23 15:25:09,820 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:25:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:25:09,933 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:25:09,937 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:25:09,938 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-23 15:25:09,938 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 15:25:09,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 15:25:09,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-23 15:25:09,939 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 6 states. [2018-07-23 15:25:09,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:25:09,968 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-23 15:25:09,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 15:25:09,970 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-07-23 15:25:09,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:25:09,971 INFO L225 Difference]: With dead ends: 11 [2018-07-23 15:25:09,971 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 15:25:09,972 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-23 15:25:09,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 15:25:09,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 15:25:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 15:25:09,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 15:25:09,976 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-07-23 15:25:09,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:25:09,976 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 15:25:09,977 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 15:25:09,977 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 15:25:09,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 15:25:09,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 15:25:10,061 INFO L417 ceAbstractionStarter]: At program point L34(lines 34 46) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~x~5)) (.cse0 (+ ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~y~5 ULTIMATE.start_main_~z~5))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-07-23 15:25:10,061 INFO L417 ceAbstractionStarter]: At program point L45(lines 45 56) the Hoare annotation is: false [2018-07-23 15:25:10,061 INFO L417 ceAbstractionStarter]: At program point L55(lines 31 55) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~x~5)) (.cse0 (+ ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~y~5 ULTIMATE.start_main_~z~5))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-07-23 15:25:10,062 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startErr0AssertViolationASSERT(line 57) the Hoare annotation is: false [2018-07-23 15:25:10,062 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 58) the Hoare annotation is: true [2018-07-23 15:25:10,062 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 58) no Hoare annotation was computed. [2018-07-23 15:25:10,064 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 1 58) the Hoare annotation is: false [2018-07-23 15:25:10,077 INFO L202 PluginConnector]: Adding new model jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 03:25:10 BoogieIcfgContainer [2018-07-23 15:25:10,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 15:25:10,080 INFO L168 Benchmark]: Toolchain (without parser) took 1429.08 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-07-23 15:25:10,081 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2018-07-23 15:25:10,082 INFO L168 Benchmark]: Boogie Preprocessor took 50.10 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. [2018-07-23 15:25:10,083 INFO L168 Benchmark]: RCFGBuilder took 271.53 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. [2018-07-23 15:25:10,086 INFO L168 Benchmark]: TraceAbstraction took 1102.08 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. [2018-07-23 15:25:10,093 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 0.21 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 50.10 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 271.53 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 1102.08 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: 57]: 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: 34]: Loop Invariant Derived loop invariant: main_~i~5 + main_~y~5 + main_~z~5 <= main_~j~5 + main_~x~5 && main_~j~5 + main_~x~5 <= main_~i~5 + main_~y~5 + main_~z~5 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: main_~i~5 + main_~y~5 + main_~z~5 <= main_~j~5 + main_~x~5 && main_~j~5 + main_~x~5 <= main_~i~5 + main_~y~5 + main_~z~5 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 14 SDs, 0 SdLazy, 27 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 38 HoareAnnotationTreeSize, 6 FomulaSimplifications, 166 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 100 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 2968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/jm2006_variant.c.i_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_15-25-10-111.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/jm2006_variant.c.i_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_15-25-10-111.csv Received shutdown request...