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/cggmp2005_variant.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:21:01,259 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:21:01,261 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:21:01,273 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:21:01,273 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:21:01,275 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:21:01,276 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:21:01,278 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:21:01,279 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:21:01,280 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:21:01,281 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-07-23 15:21:01,298 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 15:21:01,298 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 15:21:01,299 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 15:21:01,300 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 15:21:01,301 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 15:21:01,302 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 15:21:01,304 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 15:21:01,304 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 15:21:01,305 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 15:21:01,308 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 15:21:01,322 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:21:01,323 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:21:01,324 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 15:21:01,324 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 15:21:01,325 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:21:01,325 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 15:21:01,325 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:21:01,325 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:21:01,369 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:21:01,382 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:21:01,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:21:01,387 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:21:01,388 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:21:01,388 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005_variant.c.i_3.bpl [2018-07-23 15:21:01,389 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005_variant.c.i_3.bpl' [2018-07-23 15:21:01,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:21:01,441 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:21:01,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:21:01,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:21:01,442 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:21:01,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:21:01" (1/1) ... [2018-07-23 15:21:01,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:21:01" (1/1) ... [2018-07-23 15:21:01,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:21:01" (1/1) ... [2018-07-23 15:21:01,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:21:01" (1/1) ... [2018-07-23 15:21:01,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:21:01" (1/1) ... [2018-07-23 15:21:01,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:21:01" (1/1) ... [2018-07-23 15:21:01,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:21:01" (1/1) ... [2018-07-23 15:21:01,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:21:01,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:21:01,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:21:01,491 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:21:01,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:21:01" (1/1) ... [2018-07-23 15:21:01,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 15:21:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 15:21:01,747 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 15:21:01,748 INFO L202 PluginConnector]: Adding new model cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:21:01 BoogieIcfgContainer [2018-07-23 15:21:01,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:21:01,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:21:01,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:21:01,754 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:21:01,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:21:01" (1/2) ... [2018-07-23 15:21:01,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7244f18 and model type cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:21:01, skipping insertion in model container [2018-07-23 15:21:01,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:21:01" (2/2) ... [2018-07-23 15:21:01,759 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.c.i_3.bpl [2018-07-23 15:21:01,769 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:21:01,777 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 15:21:01,824 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:21:01,825 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:21:01,825 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:21:01,825 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 15:21:01,826 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:21:01,826 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:21:01,826 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:21:01,826 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:21:01,827 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:21:01,841 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 15:21:01,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 15:21:01,850 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:21:01,851 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 15:21:01,851 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:21:01,857 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-07-23 15:21:01,864 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:21:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:21:01,930 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 15:21:01,933 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:21:01,934 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 15:21:01,938 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 15:21:01,952 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 15:21:01,953 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 15:21:01,955 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-23 15:21:01,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:21:01,981 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 15:21:01,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 15:21:01,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-23 15:21:01,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:21:01,994 INFO L225 Difference]: With dead ends: 10 [2018-07-23 15:21:01,994 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 15:21:01,998 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 15:21:02,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 15:21:02,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 15:21:02,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 15:21:02,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 15:21:02,038 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 15:21:02,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:21:02,038 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 15:21:02,039 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 15:21:02,039 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 15:21:02,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 15:21:02,040 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:21:02,040 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 15:21:02,040 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:21:02,040 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-07-23 15:21:02,041 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:21:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:21:02,162 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 15:21:02,163 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:21:02,163 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 15:21:02,166 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:21:02,166 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:21:02,166 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:21:02,167 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-23 15:21:02,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:21:02,197 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-23 15:21:02,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 15:21:02,198 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-23 15:21:02,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:21:02,199 INFO L225 Difference]: With dead ends: 11 [2018-07-23 15:21:02,199 INFO L226 Difference]: Without dead ends: 9 [2018-07-23 15:21:02,202 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:21:02,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-07-23 15:21:02,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-07-23 15:21:02,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 15:21:02,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-23 15:21:02,206 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-07-23 15:21:02,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:21:02,207 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-23 15:21:02,207 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:21:02,207 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-23 15:21:02,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 15:21:02,208 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:21:02,208 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-07-23 15:21:02,208 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:21:02,209 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-07-23 15:21:02,209 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:21:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:21:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-23 15:21:02,298 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:21:02,299 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 15:21:02,299 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:21:02,299 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:21:02,300 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:21:02,300 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2018-07-23 15:21:02,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:21:02,344 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 15:21:02,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 15:21:02,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-07-23 15:21:02,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:21:02,345 INFO L225 Difference]: With dead ends: 9 [2018-07-23 15:21:02,346 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 15:21:02,346 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 15:21:02,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 15:21:02,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 15:21:02,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 15:21:02,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 15:21:02,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-07-23 15:21:02,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:21:02,348 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 15:21:02,348 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:21:02,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 15:21:02,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 15:21:02,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 15:21:02,421 INFO L417 ceAbstractionStarter]: At program point L41(lines 22 41) the Hoare annotation is: (let ((.cse0 (+ (* 2 ULTIMATE.start_main_~mid~5) ULTIMATE.start_main_~lo~5))) (and (<= ULTIMATE.start_main_~lo~5 ULTIMATE.start_main_~hi~5) (<= ULTIMATE.start_main_~hi~5 .cse0) (<= .cse0 ULTIMATE.start_main_~hi~5))) [2018-07-23 15:21:02,429 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startErr0AssertViolationASSERT(line 43) the Hoare annotation is: false [2018-07-23 15:21:02,430 INFO L417 ceAbstractionStarter]: At program point L25(lines 25 36) the Hoare annotation is: (let ((.cse0 (+ (* 2 ULTIMATE.start_main_~mid~5) ULTIMATE.start_main_~lo~5))) (and (<= ULTIMATE.start_main_~lo~5 ULTIMATE.start_main_~hi~5) (<= ULTIMATE.start_main_~hi~5 .cse0) (<= .cse0 ULTIMATE.start_main_~hi~5))) [2018-07-23 15:21:02,430 INFO L417 ceAbstractionStarter]: At program point L35(lines 35 42) the Hoare annotation is: false [2018-07-23 15:21:02,431 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 44) the Hoare annotation is: true [2018-07-23 15:21:02,431 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 44) no Hoare annotation was computed. [2018-07-23 15:21:02,431 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 1 44) the Hoare annotation is: false [2018-07-23 15:21:02,445 INFO L202 PluginConnector]: Adding new model cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 03:21:02 BoogieIcfgContainer [2018-07-23 15:21:02,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 15:21:02,448 INFO L168 Benchmark]: Toolchain (without parser) took 1007.62 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 15:21:02,450 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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 15:21:02,452 INFO L168 Benchmark]: Boogie Preprocessor took 48.31 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 15:21:02,452 INFO L168 Benchmark]: RCFGBuilder took 257.86 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 15:21:02,454 INFO L168 Benchmark]: TraceAbstraction took 696.41 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-23 15:21:02,461 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 0.19 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 48.31 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 257.86 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 696.41 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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: 35]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (main_~lo~5 <= main_~hi~5 && main_~hi~5 <= 2 * main_~mid~5 + main_~lo~5) && 2 * main_~mid~5 + main_~lo~5 <= main_~hi~5 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (main_~lo~5 <= main_~hi~5 && main_~hi~5 <= 2 * main_~mid~5 + main_~lo~5) && 2 * main_~mid~5 + main_~lo~5 <= main_~hi~5 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 6 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 40 HoareAnnotationTreeSize, 6 FomulaSimplifications, 112 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 943 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/8 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/cggmp2005_variant.c.i_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_15-21-02-475.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005_variant.c.i_3.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_15-21-02-475.csv Received shutdown request...