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/regression/SAS09.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:52:12,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:52:12,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:52:12,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:52:12,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:52:12,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:52:12,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:52:12,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:52:12,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:52:12,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:52:12,295 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:52:12,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:52:12,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:52:12,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:52:12,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:52:12,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:52:12,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:52:12,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:52:12,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:52:12,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:52:12,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:52:12,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:52:12,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:52:12,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:52:12,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 09:52:12,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:52:12,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:52:12,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:52:12,380 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:52:12,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:52:12,398 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:52:12,400 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:52:12,400 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:52:12,401 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/regression/SAS09.bpl [2019-08-05 09:52:12,401 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/regression/SAS09.bpl' [2019-08-05 09:52:12,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:52:12,431 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:52:12,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:12,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:52:12,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:52:12,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "SAS09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "SAS09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,466 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 09:52:12,466 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 09:52:12,467 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 09:52:12,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:12,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:52:12,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:52:12,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:52:12,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "SAS09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "SAS09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "SAS09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "SAS09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "SAS09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "SAS09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "SAS09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/1) ... [2019-08-05 09:52:12,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:52:12,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:52:12,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:52:12,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:52:12,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "SAS09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (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 09:52:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure Thread2 [2019-08-05 09:52:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread2 [2019-08-05 09:52:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure Thread1 [2019-08-05 09:52:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread1 [2019-08-05 09:52:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure ~init [2019-08-05 09:52:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ~init [2019-08-05 09:52:13,003 INFO L275 CfgBuilder]: Using library mode [2019-08-05 09:52:13,003 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-05 09:52:13,005 INFO L202 PluginConnector]: Adding new model SAS09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:13 BoogieIcfgContainer [2019-08-05 09:52:13,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:52:13,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:52:13,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:52:13,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:52:13,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SAS09.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:12" (1/2) ... [2019-08-05 09:52:13,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5909000d and model type SAS09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:52:13, skipping insertion in model container [2019-08-05 09:52:13,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SAS09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:13" (2/2) ... [2019-08-05 09:52:13,014 INFO L109 eAbstractionObserver]: Analyzing ICFG SAS09.bpl [2019-08-05 09:52:13,027 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:52:13,036 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-08-05 09:52:13,055 INFO L252 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-08-05 09:52:13,097 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:52:13,098 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:52:13,098 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:52:13,099 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:52:13,099 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:52:13,099 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:52:13,104 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:52:13,104 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:52:13,105 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:52:13,122 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-08-05 09:52:13,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 09:52:13,130 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:13,131 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 09:52:13,134 INFO L418 AbstractCegarLoop]: === Iteration 1 === [Thread2Err1ASSERT_VIOLATIONASSERT, Thread2Err0ASSERT_VIOLATIONASSERT, Thread1Err0ASSERT_VIOLATIONASSERT, Thread1Err1ASSERT_VIOLATIONASSERT, Thread1Err2ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:13,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:13,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 1 times [2019-08-05 09:52:13,187 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:13,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 09:52:13,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:13,262 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 09:52:13,265 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:13,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:52:13,270 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:13,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:13,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:13,287 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2019-08-05 09:52:13,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:13,322 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2019-08-05 09:52:13,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:13,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 09:52:13,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:13,336 INFO L225 Difference]: With dead ends: 15 [2019-08-05 09:52:13,336 INFO L226 Difference]: Without dead ends: 11 [2019-08-05 09:52:13,338 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 09:52:13,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-08-05 09:52:13,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-08-05 09:52:13,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-08-05 09:52:13,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-08-05 09:52:13,373 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 2 [2019-08-05 09:52:13,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:13,374 INFO L475 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-08-05 09:52:13,374 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:13,374 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-08-05 09:52:13,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 09:52:13,375 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:13,375 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 09:52:13,376 INFO L418 AbstractCegarLoop]: === Iteration 2 === [Thread2Err1ASSERT_VIOLATIONASSERT, Thread2Err0ASSERT_VIOLATIONASSERT, Thread1Err0ASSERT_VIOLATIONASSERT, Thread1Err1ASSERT_VIOLATIONASSERT, Thread1Err2ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:13,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:13,376 INFO L82 PathProgramCache]: Analyzing trace with hash 967, now seen corresponding path program 1 times [2019-08-05 09:52:13,377 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:13,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 09:52:13,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:13,431 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 09:52:13,432 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:13,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:52:13,434 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:13,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:13,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:13,435 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 3 states. [2019-08-05 09:52:13,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:13,452 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-08-05 09:52:13,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:13,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 09:52:13,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:13,454 INFO L225 Difference]: With dead ends: 10 [2019-08-05 09:52:13,454 INFO L226 Difference]: Without dead ends: 10 [2019-08-05 09:52:13,455 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 09:52:13,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-08-05 09:52:13,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-08-05 09:52:13,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-08-05 09:52:13,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-08-05 09:52:13,458 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 2 [2019-08-05 09:52:13,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:13,458 INFO L475 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-08-05 09:52:13,459 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:13,459 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-08-05 09:52:13,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 09:52:13,459 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:13,460 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 09:52:13,460 INFO L418 AbstractCegarLoop]: === Iteration 3 === [Thread2Err1ASSERT_VIOLATIONASSERT, Thread2Err0ASSERT_VIOLATIONASSERT, Thread1Err0ASSERT_VIOLATIONASSERT, Thread1Err1ASSERT_VIOLATIONASSERT, Thread1Err2ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:13,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:13,461 INFO L82 PathProgramCache]: Analyzing trace with hash 40939, now seen corresponding path program 1 times [2019-08-05 09:52:13,462 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:13,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 09:52:13,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:13,520 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 09:52:13,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:13,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:52:13,521 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:13,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:13,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:13,522 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2019-08-05 09:52:13,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:13,534 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-08-05 09:52:13,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:13,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 09:52:13,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:13,536 INFO L225 Difference]: With dead ends: 9 [2019-08-05 09:52:13,536 INFO L226 Difference]: Without dead ends: 9 [2019-08-05 09:52:13,537 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 09:52:13,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-08-05 09:52:13,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-08-05 09:52:13,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-05 09:52:13,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-05 09:52:13,540 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 3 [2019-08-05 09:52:13,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:13,540 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-05 09:52:13,540 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:13,541 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-05 09:52:13,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 09:52:13,541 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:13,541 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 09:52:13,542 INFO L418 AbstractCegarLoop]: === Iteration 4 === [Thread2Err1ASSERT_VIOLATIONASSERT, Thread2Err0ASSERT_VIOLATIONASSERT, Thread1Err0ASSERT_VIOLATIONASSERT, Thread1Err1ASSERT_VIOLATIONASSERT, Thread1Err2ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:13,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:13,543 INFO L82 PathProgramCache]: Analyzing trace with hash 30016, now seen corresponding path program 1 times [2019-08-05 09:52:13,544 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:13,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 09:52:13,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:13,600 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 09:52:13,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:13,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:52:13,601 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:13,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:13,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:13,602 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2019-08-05 09:52:13,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:13,604 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 09:52:13,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:13,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 09:52:13,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:13,605 INFO L225 Difference]: With dead ends: 8 [2019-08-05 09:52:13,605 INFO L226 Difference]: Without dead ends: 5 [2019-08-05 09:52:13,605 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 09:52:13,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-05 09:52:13,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-05 09:52:13,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-05 09:52:13,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-08-05 09:52:13,607 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-08-05 09:52:13,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:13,608 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-08-05 09:52:13,608 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:13,608 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-08-05 09:52:13,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 09:52:13,609 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:13,609 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 09:52:13,610 INFO L418 AbstractCegarLoop]: === Iteration 5 === [Thread2Err1ASSERT_VIOLATIONASSERT, Thread2Err0ASSERT_VIOLATIONASSERT, Thread1Err0ASSERT_VIOLATIONASSERT, Thread1Err1ASSERT_VIOLATIONASSERT, Thread1Err2ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:13,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:13,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1269161, now seen corresponding path program 1 times [2019-08-05 09:52:13,611 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:13,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 09:52:13,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:13,641 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 09:52:13,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:13,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:52:13,642 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:13,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:13,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:13,643 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 3 states. [2019-08-05 09:52:13,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:13,652 INFO L93 Difference]: Finished difference Result 4 states and 4 transitions. [2019-08-05 09:52:13,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:13,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-08-05 09:52:13,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:13,654 INFO L225 Difference]: With dead ends: 4 [2019-08-05 09:52:13,654 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 09:52:13,655 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 09:52:13,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 09:52:13,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 09:52:13,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 09:52:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 09:52:13,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-08-05 09:52:13,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:13,656 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 09:52:13,656 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:13,656 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 09:52:13,656 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 09:52:13,661 INFO L202 PluginConnector]: Adding new model SAS09.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 09:52:13 BoogieIcfgContainer [2019-08-05 09:52:13,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 09:52:13,663 INFO L168 Benchmark]: Toolchain (without parser) took 1230.98 ms. Allocated memory is still 133.2 MB. Free memory was 110.7 MB in the beginning and 65.6 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:13,664 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 133.2 MB. Free memory is still 111.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 09:52:13,666 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.14 ms. Allocated memory is still 133.2 MB. Free memory was 110.7 MB in the beginning and 108.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:13,667 INFO L168 Benchmark]: Boogie Preprocessor took 22.65 ms. Allocated memory is still 133.2 MB. Free memory was 108.6 MB in the beginning and 107.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:13,668 INFO L168 Benchmark]: RCFGBuilder took 512.68 ms. Allocated memory is still 133.2 MB. Free memory was 107.3 MB in the beginning and 96.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:13,669 INFO L168 Benchmark]: TraceAbstraction took 653.88 ms. Allocated memory is still 133.2 MB. Free memory was 96.3 MB in the beginning and 65.6 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:13,679 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 0.17 ms. Allocated memory is still 133.2 MB. Free memory is still 111.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.14 ms. Allocated memory is still 133.2 MB. Free memory was 110.7 MB in the beginning and 108.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.65 ms. Allocated memory is still 133.2 MB. Free memory was 108.6 MB in the beginning and 107.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 512.68 ms. Allocated memory is still 133.2 MB. Free memory was 107.3 MB in the beginning and 96.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 653.88 ms. Allocated memory is still 133.2 MB. Free memory was 96.3 MB in the beginning and 65.6 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 58]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 36]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 37]: 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 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 5 error locations. SAFE Result, 0.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 11 SDslu, 22 SDs, 0 SdLazy, 6 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 SizeOfPredicates, 0 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...