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/concurrent/concurrentBoogie/showcase/Bakery.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:52:05,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:52:05,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:52:05,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:52:05,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:52:05,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:52:05,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:52:05,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:52:05,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:52:05,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:52:05,311 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:52:05,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:52:05,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:52:05,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:52:05,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:52:05,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:52:05,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:52:05,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:52:05,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:52:05,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:52:05,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:52:05,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:52:05,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:52:05,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:52:05,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 09:52:05,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 09:52:05,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 09:52:05,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 09:52:05,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 09:52:05,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 09:52:05,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:52:05,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:52:05,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:52:05,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:52:05,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:52:05,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:52:05,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:52:05,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:52:05,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:52:05,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:52:05,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:52:05,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:52:05,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:52:05,381 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:52:05,382 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:52:05,383 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:52:05,384 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/concurrentBoogie/showcase/Bakery.bpl [2019-08-05 09:52:05,384 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/concurrentBoogie/showcase/Bakery.bpl' [2019-08-05 09:52:05,413 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:52:05,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:52:05,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:05,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:52:05,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:52:05,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:05,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:52:05,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:52:05,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:52:05,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/1) ... [2019-08-05 09:52:05,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:52:05,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:52:05,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:52:05,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:52:05,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (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 09:52:05,550 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process0 given in one single declaration [2019-08-05 09:52:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure Process0 [2019-08-05 09:52:05,551 INFO L138 BoogieDeclarations]: Found implementation of procedure Process0 [2019-08-05 09:52:05,553 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process1 given in one single declaration [2019-08-05 09:52:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure Process1 [2019-08-05 09:52:05,554 INFO L138 BoogieDeclarations]: Found implementation of procedure Process1 [2019-08-05 09:52:05,555 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 09:52:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 09:52:05,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 09:52:05,557 WARN L201 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-08-05 09:52:05,894 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 09:52:05,895 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-05 09:52:05,897 INFO L202 PluginConnector]: Adding new model Bakery.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:05 BoogieIcfgContainer [2019-08-05 09:52:05,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:52:05,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:52:05,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:52:05,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:52:05,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Bakery.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:05" (1/2) ... [2019-08-05 09:52:05,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e20aee and model type Bakery.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:52:05, skipping insertion in model container [2019-08-05 09:52:05,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Bakery.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:05" (2/2) ... [2019-08-05 09:52:05,907 INFO L109 eAbstractionObserver]: Analyzing ICFG Bakery.bpl [2019-08-05 09:52:05,974 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:52:05,984 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-08-05 09:52:06,007 INFO L252 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-08-05 09:52:06,031 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:52:06,032 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:52:06,032 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:52:06,032 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:52:06,032 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:52:06,032 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:52:06,033 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:52:06,033 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:52:06,033 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:52:06,042 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25places, 24 transitions [2019-08-05 09:52:06,068 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 175 states. [2019-08-05 09:52:06,070 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2019-08-05 09:52:06,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-08-05 09:52:06,082 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:06,083 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:06,087 INFO L418 AbstractCegarLoop]: === Iteration 1 === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process0Err0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:06,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:06,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1948701782, now seen corresponding path program 1 times [2019-08-05 09:52:06,135 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:06,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:52:06,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:06,227 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 09:52:06,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:06,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:52:06,234 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:06,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:06,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:06,250 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 3 states. [2019-08-05 09:52:06,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:06,353 INFO L93 Difference]: Finished difference Result 126 states and 286 transitions. [2019-08-05 09:52:06,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:06,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-08-05 09:52:06,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:06,371 INFO L225 Difference]: With dead ends: 126 [2019-08-05 09:52:06,371 INFO L226 Difference]: Without dead ends: 126 [2019-08-05 09:52:06,373 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 09:52:06,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-08-05 09:52:06,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2019-08-05 09:52:06,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-08-05 09:52:06,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 276 transitions. [2019-08-05 09:52:06,426 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 276 transitions. Word has length 7 [2019-08-05 09:52:06,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:06,427 INFO L475 AbstractCegarLoop]: Abstraction has 122 states and 276 transitions. [2019-08-05 09:52:06,427 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:06,427 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 276 transitions. [2019-08-05 09:52:06,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-08-05 09:52:06,429 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:06,429 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:06,430 INFO L418 AbstractCegarLoop]: === Iteration 2 === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process0Err0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:06,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:06,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1498232741, now seen corresponding path program 1 times [2019-08-05 09:52:06,432 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:06,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:52:06,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:06,570 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 09:52:06,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:06,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-08-05 09:52:06,572 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 09:52:06,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 09:52:06,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 09:52:06,573 INFO L87 Difference]: Start difference. First operand 122 states and 276 transitions. Second operand 4 states. [2019-08-05 09:52:06,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:06,687 INFO L93 Difference]: Finished difference Result 212 states and 478 transitions. [2019-08-05 09:52:06,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 09:52:06,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-08-05 09:52:06,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:06,695 INFO L225 Difference]: With dead ends: 212 [2019-08-05 09:52:06,695 INFO L226 Difference]: Without dead ends: 212 [2019-08-05 09:52:06,696 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 09:52:06,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2019-08-05 09:52:06,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 202. [2019-08-05 09:52:06,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-08-05 09:52:06,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 459 transitions. [2019-08-05 09:52:06,724 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 459 transitions. Word has length 12 [2019-08-05 09:52:06,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:06,724 INFO L475 AbstractCegarLoop]: Abstraction has 202 states and 459 transitions. [2019-08-05 09:52:06,724 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 09:52:06,725 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 459 transitions. [2019-08-05 09:52:06,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-08-05 09:52:06,726 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:06,726 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:06,727 INFO L418 AbstractCegarLoop]: === Iteration 3 === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process0Err0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:06,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:06,727 INFO L82 PathProgramCache]: Analyzing trace with hash 423921370, now seen corresponding path program 1 times [2019-08-05 09:52:06,728 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:06,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 09:52:06,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:06,912 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 09:52:06,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:06,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-08-05 09:52:06,913 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 09:52:06,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 09:52:06,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 09:52:06,914 INFO L87 Difference]: Start difference. First operand 202 states and 459 transitions. Second operand 5 states. [2019-08-05 09:52:07,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:07,183 INFO L93 Difference]: Finished difference Result 258 states and 565 transitions. [2019-08-05 09:52:07,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-08-05 09:52:07,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-08-05 09:52:07,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:07,186 INFO L225 Difference]: With dead ends: 258 [2019-08-05 09:52:07,186 INFO L226 Difference]: Without dead ends: 258 [2019-08-05 09:52:07,187 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-08-05 09:52:07,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2019-08-05 09:52:07,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 240. [2019-08-05 09:52:07,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2019-08-05 09:52:07,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 534 transitions. [2019-08-05 09:52:07,207 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 534 transitions. Word has length 12 [2019-08-05 09:52:07,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:07,208 INFO L475 AbstractCegarLoop]: Abstraction has 240 states and 534 transitions. [2019-08-05 09:52:07,208 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 09:52:07,208 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 534 transitions. [2019-08-05 09:52:07,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-08-05 09:52:07,209 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:07,209 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:07,210 INFO L418 AbstractCegarLoop]: === Iteration 4 === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process0Err0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:07,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:07,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1047478610, now seen corresponding path program 2 times [2019-08-05 09:52:07,211 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:07,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 09:52:07,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:07,345 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 09:52:07,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:07,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-08-05 09:52:07,346 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 09:52:07,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 09:52:07,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 09:52:07,347 INFO L87 Difference]: Start difference. First operand 240 states and 534 transitions. Second operand 5 states. [2019-08-05 09:52:07,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:07,428 INFO L93 Difference]: Finished difference Result 306 states and 665 transitions. [2019-08-05 09:52:07,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 09:52:07,431 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-08-05 09:52:07,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:07,433 INFO L225 Difference]: With dead ends: 306 [2019-08-05 09:52:07,433 INFO L226 Difference]: Without dead ends: 306 [2019-08-05 09:52:07,434 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-08-05 09:52:07,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-08-05 09:52:07,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 258. [2019-08-05 09:52:07,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-08-05 09:52:07,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 579 transitions. [2019-08-05 09:52:07,450 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 579 transitions. Word has length 12 [2019-08-05 09:52:07,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:07,451 INFO L475 AbstractCegarLoop]: Abstraction has 258 states and 579 transitions. [2019-08-05 09:52:07,451 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 09:52:07,451 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 579 transitions. [2019-08-05 09:52:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-08-05 09:52:07,454 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:07,454 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:07,454 INFO L418 AbstractCegarLoop]: === Iteration 5 === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process0Err0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:07,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:07,455 INFO L82 PathProgramCache]: Analyzing trace with hash -353172715, now seen corresponding path program 1 times [2019-08-05 09:52:07,456 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:07,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 09:52:07,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:07,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 09:52:07,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:07,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-08-05 09:52:07,578 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-05 09:52:07,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-05 09:52:07,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-08-05 09:52:07,580 INFO L87 Difference]: Start difference. First operand 258 states and 579 transitions. Second operand 6 states. [2019-08-05 09:52:07,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:07,767 INFO L93 Difference]: Finished difference Result 202 states and 435 transitions. [2019-08-05 09:52:07,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 09:52:07,773 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-08-05 09:52:07,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:07,774 INFO L225 Difference]: With dead ends: 202 [2019-08-05 09:52:07,775 INFO L226 Difference]: Without dead ends: 202 [2019-08-05 09:52:07,775 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-08-05 09:52:07,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2019-08-05 09:52:07,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 162. [2019-08-05 09:52:07,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-08-05 09:52:07,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 355 transitions. [2019-08-05 09:52:07,785 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 355 transitions. Word has length 18 [2019-08-05 09:52:07,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:07,785 INFO L475 AbstractCegarLoop]: Abstraction has 162 states and 355 transitions. [2019-08-05 09:52:07,786 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-05 09:52:07,786 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 355 transitions. [2019-08-05 09:52:07,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-08-05 09:52:07,790 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:07,790 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:07,791 INFO L418 AbstractCegarLoop]: === Iteration 6 === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process0Err0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:07,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:07,791 INFO L82 PathProgramCache]: Analyzing trace with hash 332476595, now seen corresponding path program 2 times [2019-08-05 09:52:07,792 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:07,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 09:52:07,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:07,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 09:52:07,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:07,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-08-05 09:52:07,872 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 09:52:07,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 09:52:07,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 09:52:07,873 INFO L87 Difference]: Start difference. First operand 162 states and 355 transitions. Second operand 5 states. [2019-08-05 09:52:07,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:07,964 INFO L93 Difference]: Finished difference Result 206 states and 435 transitions. [2019-08-05 09:52:07,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 09:52:07,964 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-08-05 09:52:07,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:07,966 INFO L225 Difference]: With dead ends: 206 [2019-08-05 09:52:07,966 INFO L226 Difference]: Without dead ends: 206 [2019-08-05 09:52:07,966 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-08-05 09:52:07,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2019-08-05 09:52:07,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 160. [2019-08-05 09:52:07,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-08-05 09:52:07,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 342 transitions. [2019-08-05 09:52:07,973 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 342 transitions. Word has length 18 [2019-08-05 09:52:07,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:07,974 INFO L475 AbstractCegarLoop]: Abstraction has 160 states and 342 transitions. [2019-08-05 09:52:07,974 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 09:52:07,974 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 342 transitions. [2019-08-05 09:52:07,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-08-05 09:52:07,976 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:07,976 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 09:52:07,976 INFO L418 AbstractCegarLoop]: === Iteration 7 === [Process0Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, Process0Err0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:07,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:07,977 INFO L82 PathProgramCache]: Analyzing trace with hash -853037980, now seen corresponding path program 1 times [2019-08-05 09:52:07,978 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:07,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 09:52:07,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:08,097 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 09:52:08,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:08,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-08-05 09:52:08,098 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-05 09:52:08,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-05 09:52:08,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-08-05 09:52:08,099 INFO L87 Difference]: Start difference. First operand 160 states and 342 transitions. Second operand 6 states. [2019-08-05 09:52:08,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:08,473 INFO L93 Difference]: Finished difference Result 132 states and 260 transitions. [2019-08-05 09:52:08,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 09:52:08,473 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-08-05 09:52:08,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:08,473 INFO L225 Difference]: With dead ends: 132 [2019-08-05 09:52:08,474 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 09:52:08,474 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-08-05 09:52:08,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 09:52:08,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 09:52:08,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 09:52:08,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 09:52:08,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-08-05 09:52:08,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:08,475 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 09:52:08,476 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-05 09:52:08,476 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 09:52:08,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 09:52:08,479 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-08-05 09:52:08,481 INFO L202 PluginConnector]: Adding new model Bakery.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 09:52:08 BasicIcfg [2019-08-05 09:52:08,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 09:52:08,484 INFO L168 Benchmark]: Toolchain (without parser) took 3068.75 ms. Allocated memory was 135.3 MB in the beginning and 169.3 MB in the end (delta: 34.1 MB). Free memory was 111.6 MB in the beginning and 77.1 MB in the end (delta: 34.5 MB). Peak memory consumption was 68.6 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:08,485 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory was 112.8 MB in the beginning and 112.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-05 09:52:08,486 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.86 ms. Allocated memory is still 135.3 MB. Free memory was 111.6 MB in the beginning and 109.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:08,487 INFO L168 Benchmark]: Boogie Preprocessor took 22.87 ms. Allocated memory is still 135.3 MB. Free memory was 109.7 MB in the beginning and 108.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:08,488 INFO L168 Benchmark]: RCFGBuilder took 422.80 ms. Allocated memory is still 135.3 MB. Free memory was 108.6 MB in the beginning and 98.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:08,489 INFO L168 Benchmark]: TraceAbstraction took 2582.08 ms. Allocated memory was 135.3 MB in the beginning and 169.3 MB in the end (delta: 34.1 MB). Free memory was 97.8 MB in the beginning and 77.1 MB in the end (delta: 20.8 MB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:08,493 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 135.3 MB. Free memory was 112.8 MB in the beginning and 112.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 35.86 ms. Allocated memory is still 135.3 MB. Free memory was 111.6 MB in the beginning and 109.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.87 ms. Allocated memory is still 135.3 MB. Free memory was 109.7 MB in the beginning and 108.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.80 ms. Allocated memory is still 135.3 MB. Free memory was 108.6 MB in the beginning and 98.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2582.08 ms. Allocated memory was 135.3 MB in the beginning and 169.3 MB in the end (delta: 34.1 MB). Free memory was 97.8 MB in the beginning and 77.1 MB in the end (delta: 20.8 MB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 38]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 53]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 53]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 38]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 4 error locations. SAFE Result, 2.4s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 185 SDtfs, 211 SDslu, 255 SDs, 0 SdLazy, 161 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=4, 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 166 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 3758 SizeOfPredicates, 19 NumberOfNonLiveVariables, 196 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 13/13 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...