java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:45:29,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:45:29,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:45:29,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:45:29,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:45:29,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:45:29,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:45:29,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:45:29,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:45:29,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:45:29,385 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:45:29,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:45:29,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:45:29,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:45:29,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:45:29,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:45:29,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:45:29,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:45:29,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:45:29,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:45:29,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:45:29,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:45:29,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:45:29,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:45:29,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 10:45:29,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:45:29,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:45:29,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:45:29,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:45:29,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:45:29,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:45:29,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:45:29,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:45:29,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:45:29,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:45:29,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:45:29,440 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:45:29,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:45:29,455 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:45:29,456 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:45:29,456 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:45:29,457 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl [2019-08-05 10:45:29,457 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl' [2019-08-05 10:45:29,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:45:29,488 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:45:29,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:45:29,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:45:29,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:45:29,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:45:29" (1/1) ... [2019-08-05 10:45:29,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:45:29" (1/1) ... [2019-08-05 10:45:29,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:45:29,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:45:29,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:45:29,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:45:29,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:45:29" (1/1) ... [2019-08-05 10:45:29,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:45:29" (1/1) ... [2019-08-05 10:45:29,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:45:29" (1/1) ... [2019-08-05 10:45:29,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:45:29" (1/1) ... [2019-08-05 10:45:29,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:45:29" (1/1) ... [2019-08-05 10:45:29,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:45:29" (1/1) ... [2019-08-05 10:45:29,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:45:29" (1/1) ... [2019-08-05 10:45:29,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:45:29,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:45:29,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:45:29,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:45:29,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:45:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-05 10:45:29,598 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 10:45:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 10:45:29,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 10:45:29,845 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 10:45:29,845 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 10:45:29,846 INFO L202 PluginConnector]: Adding new model cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:45:29 BoogieIcfgContainer [2019-08-05 10:45:29,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:45:29,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:45:29,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:45:29,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:45:29,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:45:29" (1/2) ... [2019-08-05 10:45:29,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a05a11 and model type cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:45:29, skipping insertion in model container [2019-08-05 10:45:29,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:45:29" (2/2) ... [2019-08-05 10:45:29,858 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl [2019-08-05 10:45:29,868 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:45:29,877 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:45:29,894 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:45:29,924 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:45:29,925 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:45:29,925 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:45:29,925 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:45:29,925 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:45:29,925 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:45:29,926 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:45:29,926 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:45:29,926 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:45:29,942 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-08-05 10:45:29,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 10:45:29,952 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:45:29,953 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 10:45:29,956 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:45:29,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:45:29,962 INFO L82 PathProgramCache]: Analyzing trace with hash 30017, now seen corresponding path program 1 times [2019-08-05 10:45:30,007 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:45:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:45:30,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 10:45:30,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:45:30,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:45:30,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:45:30,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 10:45:30,118 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:45:30,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:45:30,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:45:30,133 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2019-08-05 10:45:30,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:45:30,165 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-08-05 10:45:30,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:45:30,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 10:45:30,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:45:30,185 INFO L225 Difference]: With dead ends: 5 [2019-08-05 10:45:30,185 INFO L226 Difference]: Without dead ends: 5 [2019-08-05 10:45:30,187 INFO L628 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 [2019-08-05 10:45:30,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-05 10:45:30,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-05 10:45:30,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-05 10:45:30,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-08-05 10:45:30,233 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-08-05 10:45:30,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:45:30,234 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-08-05 10:45:30,234 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:45:30,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-08-05 10:45:30,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:45:30,235 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:45:30,235 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:45:30,236 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:45:30,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:45:30,237 INFO L82 PathProgramCache]: Analyzing trace with hash 928552, now seen corresponding path program 1 times [2019-08-05 10:45:30,238 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:45:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:45:30,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 10:45:30,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:45:30,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:45:30,399 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:45:30,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 10:45:30,401 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:45:30,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:45:30,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:45:30,402 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2019-08-05 10:45:30,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:45:30,429 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2019-08-05 10:45:30,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:45:30,429 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 10:45:30,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:45:30,430 INFO L225 Difference]: With dead ends: 6 [2019-08-05 10:45:30,430 INFO L226 Difference]: Without dead ends: 6 [2019-08-05 10:45:30,432 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:45:30,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-08-05 10:45:30,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-08-05 10:45:30,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-05 10:45:30,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-08-05 10:45:30,435 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-08-05 10:45:30,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:45:30,435 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-08-05 10:45:30,435 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:45:30,435 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-08-05 10:45:30,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 10:45:30,436 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:45:30,436 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-08-05 10:45:30,437 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:45:30,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:45:30,437 INFO L82 PathProgramCache]: Analyzing trace with hash 28783137, now seen corresponding path program 2 times [2019-08-05 10:45:30,438 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:45:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:45:30,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2019-08-05 10:45:30,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:45:30,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:45:30,570 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:45:30,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-05 10:45:30,571 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 10:45:30,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 10:45:30,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:45:30,572 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 5 states. [2019-08-05 10:45:30,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:45:30,623 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-08-05 10:45:30,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 10:45:30,624 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-08-05 10:45:30,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:45:30,625 INFO L225 Difference]: With dead ends: 7 [2019-08-05 10:45:30,625 INFO L226 Difference]: Without dead ends: 7 [2019-08-05 10:45:30,626 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:45:30,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-05 10:45:30,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-08-05 10:45:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 10:45:30,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 10:45:30,630 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-08-05 10:45:30,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:45:30,630 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 10:45:30,630 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 10:45:30,630 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 10:45:30,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 10:45:30,631 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:45:30,631 INFO L399 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2019-08-05 10:45:30,631 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:45:30,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:45:30,632 INFO L82 PathProgramCache]: Analyzing trace with hash 892275272, now seen corresponding path program 3 times [2019-08-05 10:45:30,633 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:45:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:45:30,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 9 conjunts are in the unsatisfiable core [2019-08-05 10:45:30,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:45:30,838 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:45:30,850 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:45:30,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-08-05 10:45:30,851 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-05 10:45:30,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-05 10:45:30,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-08-05 10:45:30,854 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2019-08-05 10:45:30,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:45:30,916 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 10:45:30,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-08-05 10:45:30,917 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-08-05 10:45:30,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:45:30,917 INFO L225 Difference]: With dead ends: 8 [2019-08-05 10:45:30,917 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 10:45:30,918 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-08-05 10:45:30,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 10:45:30,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-08-05 10:45:30,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-08-05 10:45:30,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-08-05 10:45:30,922 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-08-05 10:45:30,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:45:30,922 INFO L475 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-08-05 10:45:30,922 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-05 10:45:30,922 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-08-05 10:45:30,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-08-05 10:45:30,923 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:45:30,923 INFO L399 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2019-08-05 10:45:30,923 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:45:30,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:45:30,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1890727681, now seen corresponding path program 4 times [2019-08-05 10:45:30,924 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:45:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:45:30,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 11 conjunts are in the unsatisfiable core [2019-08-05 10:45:30,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:45:31,152 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:45:31,152 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:45:31,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-08-05 10:45:31,153 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-05 10:45:31,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-05 10:45:31,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-08-05 10:45:31,154 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2019-08-05 10:45:31,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:45:31,254 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-08-05 10:45:31,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 10:45:31,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-08-05 10:45:31,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:45:31,257 INFO L225 Difference]: With dead ends: 9 [2019-08-05 10:45:31,257 INFO L226 Difference]: Without dead ends: 9 [2019-08-05 10:45:31,257 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-08-05 10:45:31,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-08-05 10:45:31,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-08-05 10:45:31,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-05 10:45:31,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-05 10:45:31,260 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-08-05 10:45:31,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:45:31,260 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-05 10:45:31,260 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-05 10:45:31,261 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-05 10:45:31,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-05 10:45:31,261 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:45:31,261 INFO L399 BasicCegarLoop]: trace histogram [5, 1, 1, 1] [2019-08-05 10:45:31,261 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:45:31,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:45:31,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1516986008, now seen corresponding path program 5 times [2019-08-05 10:45:31,263 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:45:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:45:31,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 11 conjunts are in the unsatisfiable core [2019-08-05 10:45:31,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:45:31,413 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:45:31,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:45:31,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-08-05 10:45:31,415 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-05 10:45:31,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-05 10:45:31,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-08-05 10:45:31,416 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-08-05 10:45:31,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:45:31,466 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-08-05 10:45:31,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 10:45:31,467 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-08-05 10:45:31,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:45:31,467 INFO L225 Difference]: With dead ends: 6 [2019-08-05 10:45:31,467 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 10:45:31,468 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-08-05 10:45:31,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 10:45:31,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 10:45:31,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 10:45:31,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 10:45:31,469 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-08-05 10:45:31,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:45:31,469 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 10:45:31,469 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-05 10:45:31,469 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 10:45:31,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 10:45:31,475 INFO L202 PluginConnector]: Adding new model cggmp2005.c.i_3.bplTransformedIcfg_BEv2_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:45:31 BoogieIcfgContainer [2019-08-05 10:45:31,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:45:31,478 INFO L168 Benchmark]: Toolchain (without parser) took 1989.03 ms. Allocated memory was 135.3 MB in the beginning and 169.3 MB in the end (delta: 34.1 MB). Free memory was 112.8 MB in the beginning and 122.4 MB in the end (delta: -9.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-08-05 10:45:31,479 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 135.3 MB. Free memory was 114.0 MB in the beginning and 113.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 10:45:31,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.87 ms. Allocated memory is still 135.3 MB. Free memory was 112.6 MB in the beginning and 111.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2019-08-05 10:45:31,481 INFO L168 Benchmark]: Boogie Preprocessor took 18.68 ms. Allocated memory is still 135.3 MB. Free memory was 111.1 MB in the beginning and 109.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:45:31,482 INFO L168 Benchmark]: RCFGBuilder took 308.34 ms. Allocated memory is still 135.3 MB. Free memory was 109.8 MB in the beginning and 100.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:45:31,483 INFO L168 Benchmark]: TraceAbstraction took 1626.68 ms. Allocated memory was 135.3 MB in the beginning and 169.3 MB in the end (delta: 34.1 MB). Free memory was 100.6 MB in the beginning and 122.4 MB in the end (delta: -21.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2019-08-05 10:45:31,488 INFO L335 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 0.16 ms. Allocated memory is still 135.3 MB. Free memory was 114.0 MB in the beginning and 113.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 29.87 ms. Allocated memory is still 135.3 MB. Free memory was 112.6 MB in the beginning and 111.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 18.68 ms. Allocated memory is still 135.3 MB. Free memory was 111.1 MB in the beginning and 109.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 308.34 ms. Allocated memory is still 135.3 MB. Free memory was 109.8 MB in the beginning and 100.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1626.68 ms. Allocated memory was 135.3 MB in the beginning and 169.3 MB in the end (delta: 34.1 MB). Free memory was 100.6 MB in the beginning and 122.4 MB in the end (delta: -21.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 36]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 0 SDslu, 11 SDs, 0 SdLazy, 64 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=5, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 649 SizeOfPredicates, 8 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 15/35 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...