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/Interactive/input/TIS.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:52:25,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:52:25,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:52:25,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:52:25,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:52:25,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:52:25,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:52:25,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:52:25,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:52:25,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:52:25,488 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:52:25,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:52:25,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:52:25,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:52:25,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:52:25,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:52:25,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:52:25,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:52:25,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:52:25,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:52:25,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:52:25,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:52:25,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:52:25,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:52:25,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 09:52:25,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 09:52:25,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 09:52:25,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 09:52:25,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 09:52:25,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 09:52:25,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:52:25,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:52:25,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:52:25,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:52:25,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:52:25,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:52:25,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:52:25,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:52:25,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:52:25,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:52:25,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:52:25,563 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:52:25,585 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:52:25,591 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:52:25,593 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:52:25,593 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:52:25,594 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/Interactive/input/TIS.bpl [2019-08-05 09:52:25,595 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/Interactive/input/TIS.bpl' [2019-08-05 09:52:25,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:52:25,632 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:52:25,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:25,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:52:25,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:52:25,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "TIS.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:25" (1/1) ... [2019-08-05 09:52:25,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "TIS.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:25" (1/1) ... [2019-08-05 09:52:25,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:25,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:52:25,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:52:25,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:52:25,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "TIS.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:25" (1/1) ... [2019-08-05 09:52:25,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "TIS.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:25" (1/1) ... [2019-08-05 09:52:25,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "TIS.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:25" (1/1) ... [2019-08-05 09:52:25,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "TIS.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:25" (1/1) ... [2019-08-05 09:52:25,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "TIS.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:25" (1/1) ... [2019-08-05 09:52:25,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "TIS.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:25" (1/1) ... [2019-08-05 09:52:25,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "TIS.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:25" (1/1) ... [2019-08-05 09:52:25,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:52:25,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:52:25,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:52:25,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:52:25,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "TIS.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:25" (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 09:52:25,776 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 09:52:25,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 09:52:25,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 09:52:25,936 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 09:52:25,937 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 09:52:25,938 INFO L202 PluginConnector]: Adding new model TIS.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:25 BoogieIcfgContainer [2019-08-05 09:52:25,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:52:25,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:52:25,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:52:25,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:52:25,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "TIS.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:25" (1/2) ... [2019-08-05 09:52:25,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492a67d2 and model type TIS.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:52:25, skipping insertion in model container [2019-08-05 09:52:25,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "TIS.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:25" (2/2) ... [2019-08-05 09:52:25,947 INFO L109 eAbstractionObserver]: Analyzing ICFG TIS.bpl [2019-08-05 09:52:25,956 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:52:25,964 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 09:52:25,981 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 09:52:26,012 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:52:26,012 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:52:26,013 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:52:26,013 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:52:26,013 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:52:26,013 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:52:26,013 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:52:26,014 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:52:26,014 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:52:26,027 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-08-05 09:52:26,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 09:52:26,036 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:26,037 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 09:52:26,039 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:26,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:26,046 INFO L82 PathProgramCache]: Analyzing trace with hash 934573, now seen corresponding path program 1 times [2019-08-05 09:52:26,093 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:26,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:52:26,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:26,154 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 09:52:26,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:26,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 09:52:26,161 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:26,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:26,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:26,178 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2019-08-05 09:52:26,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:26,251 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-08-05 09:52:26,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:26,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-08-05 09:52:26,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:26,267 INFO L225 Difference]: With dead ends: 12 [2019-08-05 09:52:26,268 INFO L226 Difference]: Without dead ends: 7 [2019-08-05 09:52:26,271 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 09:52:26,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-05 09:52:26,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-08-05 09:52:26,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 09:52:26,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 09:52:26,315 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-05 09:52:26,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:26,316 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 09:52:26,316 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:26,317 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 09:52:26,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 09:52:26,318 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:26,318 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-08-05 09:52:26,318 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:26,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:26,319 INFO L82 PathProgramCache]: Analyzing trace with hash 890491911, now seen corresponding path program 1 times [2019-08-05 09:52:26,320 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:26,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:52:26,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:26,444 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 09:52:26,445 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 09:52:26,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 09:52:26,447 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 09:52:26,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 09:52:26,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 09:52:26,448 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2019-08-05 09:52:26,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:26,505 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 09:52:26,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 09:52:26,506 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-08-05 09:52:26,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:26,506 INFO L225 Difference]: With dead ends: 8 [2019-08-05 09:52:26,506 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 09:52:26,507 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 09:52:26,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 09:52:26,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-08-05 09:52:26,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-08-05 09:52:26,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-08-05 09:52:26,510 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-08-05 09:52:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:26,510 INFO L475 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-08-05 09:52:26,510 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 09:52:26,510 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-08-05 09:52:26,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-08-05 09:52:26,511 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:26,511 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-08-05 09:52:26,512 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:26,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1835380102, now seen corresponding path program 2 times [2019-08-05 09:52:26,513 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:26,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 09:52:26,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:26,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-08-05 09:52:26,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:26,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 09:52:26,565 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:26,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:26,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:26,567 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2019-08-05 09:52:26,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:26,568 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-08-05 09:52:26,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:26,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-08-05 09:52:26,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:26,569 INFO L225 Difference]: With dead ends: 7 [2019-08-05 09:52:26,569 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 09:52:26,570 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 09:52:26,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 09:52:26,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 09:52:26,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 09:52:26,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 09:52:26,571 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-08-05 09:52:26,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:26,571 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 09:52:26,571 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:26,572 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 09:52:26,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 09:52:26,577 INFO L202 PluginConnector]: Adding new model TIS.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 09:52:26 BoogieIcfgContainer [2019-08-05 09:52:26,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 09:52:26,581 INFO L168 Benchmark]: Toolchain (without parser) took 947.72 ms. Allocated memory is still 134.2 MB. Free memory was 110.7 MB in the beginning and 71.4 MB in the end (delta: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:26,582 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 111.8 MB in the beginning and 111.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 09:52:26,583 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.00 ms. Allocated memory is still 134.2 MB. Free memory was 110.5 MB in the beginning and 108.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:26,584 INFO L168 Benchmark]: Boogie Preprocessor took 27.22 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 107.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:26,585 INFO L168 Benchmark]: RCFGBuilder took 237.58 ms. Allocated memory is still 134.2 MB. Free memory was 107.6 MB in the beginning and 98.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:26,586 INFO L168 Benchmark]: TraceAbstraction took 638.06 ms. Allocated memory is still 134.2 MB. Free memory was 98.3 MB in the beginning and 71.4 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:26,591 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 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 111.8 MB in the beginning and 111.6 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 40.00 ms. Allocated memory is still 134.2 MB. Free memory was 110.5 MB in the beginning and 108.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.22 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 107.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 237.58 ms. Allocated memory is still 134.2 MB. Free memory was 107.6 MB in the beginning and 98.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 638.06 ms. Allocated memory is still 134.2 MB. Free memory was 98.3 MB in the beginning and 71.4 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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, 8 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 4 SDslu, 5 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 172 SizeOfPredicates, 1 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...