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/toy/errorLocalization/multipleBranchOutsFromOneStateinTrace.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:43:16,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:43:16,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:43:16,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:43:16,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:43:16,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:43:16,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:43:16,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:43:16,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:43:16,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:43:16,383 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:43:16,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:43:16,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:43:16,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:43:16,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:43:16,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:43:16,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:43:16,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:43:16,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:43:16,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:43:16,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:43:16,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:43:16,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:43:16,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:43:16,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:43:16,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:43:16,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:43:16,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:43:16,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:43:16,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:43:16,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:43:16,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:43:16,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:43:16,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:43:16,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:43:16,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:43:16,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:43:16,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:43:16,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:43:16,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:43:16,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:43:16,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:43:16,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:43:16,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:43:16,475 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:43:16,475 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:43:16,476 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/errorLocalization/multipleBranchOutsFromOneStateinTrace.bpl [2019-08-05 10:43:16,476 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/errorLocalization/multipleBranchOutsFromOneStateinTrace.bpl' [2019-08-05 10:43:16,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:43:16,511 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:43:16,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:43:16,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:43:16,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:43:16,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:16" (1/1) ... [2019-08-05 10:43:16,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:16" (1/1) ... [2019-08-05 10:43:16,544 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 10:43:16,544 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 10:43:16,544 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 10:43:16,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:43:16,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:43:16,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:43:16,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:43:16,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:16" (1/1) ... [2019-08-05 10:43:16,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:16" (1/1) ... [2019-08-05 10:43:16,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:16" (1/1) ... [2019-08-05 10:43:16,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:16" (1/1) ... [2019-08-05 10:43:16,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:16" (1/1) ... [2019-08-05 10:43:16,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:16" (1/1) ... [2019-08-05 10:43:16,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:16" (1/1) ... [2019-08-05 10:43:16,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:43:16,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:43:16,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:43:16,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:43:16,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:16" (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 10:43:16,644 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2019-08-05 10:43:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-08-05 10:43:16,644 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-08-05 10:43:16,906 INFO L275 CfgBuilder]: Using library mode [2019-08-05 10:43:16,906 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 10:43:16,907 INFO L202 PluginConnector]: Adding new model multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:43:16 BoogieIcfgContainer [2019-08-05 10:43:16,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:43:16,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:43:16,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:43:16,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:43:16,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:43:16" (1/2) ... [2019-08-05 10:43:16,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a0f535 and model type multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:43:16, skipping insertion in model container [2019-08-05 10:43:16,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:43:16" (2/2) ... [2019-08-05 10:43:16,916 INFO L109 eAbstractionObserver]: Analyzing ICFG multipleBranchOutsFromOneStateinTrace.bpl [2019-08-05 10:43:16,925 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:43:16,933 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:43:16,950 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:43:16,976 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:43:16,976 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:43:16,977 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:43:16,977 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:43:16,977 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:43:16,977 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:43:16,977 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:43:16,978 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:43:16,978 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:43:16,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-08-05 10:43:17,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 10:43:17,000 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:43:17,001 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 10:43:17,004 INFO L418 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:43:17,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:43:17,009 INFO L82 PathProgramCache]: Analyzing trace with hash 46481, now seen corresponding path program 1 times [2019-08-05 10:43:17,056 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:43:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:43:17,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 10:43:17,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:43:17,147 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 10:43:17,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:43:17,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 10:43:17,155 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:43:17,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:43:17,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:43:17,187 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2019-08-05 10:43:17,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:43:17,262 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2019-08-05 10:43:17,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:43:17,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 10:43:17,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:43:17,276 INFO L225 Difference]: With dead ends: 6 [2019-08-05 10:43:17,276 INFO L226 Difference]: Without dead ends: 5 [2019-08-05 10:43:17,278 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 10:43:17,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-05 10:43:17,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-05 10:43:17,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-05 10:43:17,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-08-05 10:43:17,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-08-05 10:43:17,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:43:17,317 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-08-05 10:43:17,318 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:43:17,318 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-08-05 10:43:17,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:43:17,319 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:43:17,319 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:43:17,319 INFO L418 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:43:17,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:43:17,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1438970, now seen corresponding path program 1 times [2019-08-05 10:43:17,321 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:43:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:43:17,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 10:43:17,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:43:17,413 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 10:43:17,414 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:43:17,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 10:43:17,416 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:43:17,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:43:17,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:43:17,417 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2019-08-05 10:43:17,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:43:17,459 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2019-08-05 10:43:17,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:43:17,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 10:43:17,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:43:17,460 INFO L225 Difference]: With dead ends: 6 [2019-08-05 10:43:17,460 INFO L226 Difference]: Without dead ends: 6 [2019-08-05 10:43:17,461 INFO L628 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 [2019-08-05 10:43:17,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-08-05 10:43:17,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-08-05 10:43:17,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-05 10:43:17,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-08-05 10:43:17,464 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-08-05 10:43:17,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:43:17,464 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-08-05 10:43:17,464 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:43:17,465 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-08-05 10:43:17,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 10:43:17,465 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:43:17,465 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-08-05 10:43:17,465 INFO L418 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:43:17,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:43:17,466 INFO L82 PathProgramCache]: Analyzing trace with hash 44606129, now seen corresponding path program 2 times [2019-08-05 10:43:17,467 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:43:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 10:43:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 10:43:17,505 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 10:43:17,524 INFO L202 PluginConnector]: Adding new model multipleBranchOutsFromOneStateinTrace.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:43:17 BoogieIcfgContainer [2019-08-05 10:43:17,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:43:17,528 INFO L168 Benchmark]: Toolchain (without parser) took 1016.00 ms. Allocated memory is still 133.7 MB. Free memory was 110.1 MB in the beginning and 71.3 MB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:17,529 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 133.7 MB. Free memory is still 110.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 10:43:17,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.76 ms. Allocated memory is still 133.7 MB. Free memory was 110.1 MB in the beginning and 108.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:17,531 INFO L168 Benchmark]: Boogie Preprocessor took 22.61 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 106.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:17,532 INFO L168 Benchmark]: RCFGBuilder took 337.27 ms. Allocated memory is still 133.7 MB. Free memory was 106.7 MB in the beginning and 96.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:17,533 INFO L168 Benchmark]: TraceAbstraction took 615.91 ms. Allocated memory is still 133.7 MB. Free memory was 96.3 MB in the beginning and 71.3 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2019-08-05 10:43:17,537 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 0.24 ms. Allocated memory is still 133.7 MB. Free memory is still 110.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 35.76 ms. Allocated memory is still 133.7 MB. Free memory was 110.1 MB in the beginning and 108.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.61 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 106.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 337.27 ms. Allocated memory is still 133.7 MB. Free memory was 106.7 MB in the beginning and 96.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 615.91 ms. Allocated memory is still 133.7 MB. Free memory was 96.3 MB in the beginning and 71.3 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: assertion can be violated assertion can be violated We found a FailurePath: [L12] y := 0; [L13] z := 0; [L14] i := 0; [L15] COND TRUE z == 0 [L17] z := 1; VAL [i=0, y=0, z=1] [L19] COND TRUE i < 2 [L21] x := y; [L22] y := y + 1; [L23] i := i + 1; VAL [i=1, x=0, y=1, z=1] [L19] COND TRUE i < 2 [L21] x := y; [L22] y := y + 1; [L23] i := i + 1; VAL [i=2, x=1, y=2, z=1] [L19] COND FALSE !(i < 2) VAL [i=2, x=1, y=2, z=1] [L26] assert x == 2; VAL [i=2, x=1, y=2, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 4 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 2 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...