java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf -i ../../../trunk/examples/programs/real-life/threadpooling_product_WithoutIf.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:27:24,451 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:27:24,453 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:27:24,465 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:27:24,466 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:27:24,467 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:27:24,468 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:27:24,470 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:27:24,471 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:27:24,472 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:27:24,473 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 09:27:24,474 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 09:27:24,474 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 09:27:24,475 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 09:27:24,477 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 09:27:24,477 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 09:27:24,478 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 09:27:24,480 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 09:27:24,482 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 09:27:24,484 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 09:27:24,485 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 09:27:24,486 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 09:27:24,489 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-26 09:27:24,498 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf [2018-09-26 09:27:24,506 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:27:24,506 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:27:24,508 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 09:27:24,508 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 09:27:24,508 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:27:24,508 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:27:24,509 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 09:27:24,509 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:27:24,553 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:27:24,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:27:24,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:27:24,583 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:27:24,584 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:27:24,584 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_product_WithoutIf.bpl [2018-09-26 09:27:24,585 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_product_WithoutIf.bpl' [2018-09-26 09:27:24,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:27:24,634 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:27:24,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:27:24,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:27:24,636 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:27:24,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:27:24" (1/1) ... [2018-09-26 09:27:24,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:27:24" (1/1) ... [2018-09-26 09:27:24,675 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-26 09:27:24,675 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-26 09:27:24,675 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-26 09:27:24,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:27:24,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:27:24,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:27:24,679 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:27:24,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:27:24" (1/1) ... [2018-09-26 09:27:24,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:27:24" (1/1) ... [2018-09-26 09:27:24,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:27:24" (1/1) ... [2018-09-26 09:27:24,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:27:24" (1/1) ... [2018-09-26 09:27:24,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:27:24" (1/1) ... [2018-09-26 09:27:24,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:27:24" (1/1) ... [2018-09-26 09:27:24,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:27:24" (1/1) ... [2018-09-26 09:27:24,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:27:24,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:27:24,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:27:24,702 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:27:24,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:27:24" (1/1) ... [2018-09-26 09:27:24,793 INFO L124 BoogieDeclarations]: Specification and implementation of procedure product given in one single declaration [2018-09-26 09:27:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure product [2018-09-26 09:27:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure product [2018-09-26 09:27:24,954 INFO L343 CfgBuilder]: Using library mode [2018-09-26 09:27:24,955 INFO L202 PluginConnector]: Adding new model threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:27:24 BoogieIcfgContainer [2018-09-26 09:27:24,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:27:24,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:27:24,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:27:24,960 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:27:24,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:27:24" (1/2) ... [2018-09-26 09:27:24,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c56807 and model type threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:27:24, skipping insertion in model container [2018-09-26 09:27:24,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:27:24" (2/2) ... [2018-09-26 09:27:24,965 INFO L112 eAbstractionObserver]: Analyzing ICFG threadpooling_product_WithoutIf.bpl [2018-09-26 09:27:24,975 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:27:24,983 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-09-26 09:27:25,032 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:27:25,033 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:27:25,033 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:27:25,034 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:27:25,034 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:27:25,034 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:27:25,034 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:27:25,035 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:27:25,035 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:27:25,052 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-09-26 09:27:25,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 09:27:25,061 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:27:25,062 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 09:27:25,064 INFO L423 AbstractCegarLoop]: === Iteration 1 === [productErr3ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:27:25,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:27:25,071 INFO L82 PathProgramCache]: Analyzing trace with hash 927686, now seen corresponding path program 1 times [2018-09-26 09:27:25,078 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:27:25,192 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:27:25,192 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 09:27:25,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 09:27:25,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 09:27:25,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-26 09:27:25,219 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-09-26 09:27:25,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:27:25,337 INFO L93 Difference]: Finished difference Result 26 states and 39 transitions. [2018-09-26 09:27:25,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-26 09:27:25,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-09-26 09:27:25,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:27:25,353 INFO L225 Difference]: With dead ends: 26 [2018-09-26 09:27:25,353 INFO L226 Difference]: Without dead ends: 24 [2018-09-26 09:27:25,357 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-09-26 09:27:25,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-09-26 09:27:25,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2018-09-26 09:27:25,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-09-26 09:27:25,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2018-09-26 09:27:25,400 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 4 [2018-09-26 09:27:25,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:27:25,401 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2018-09-26 09:27:25,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 09:27:25,401 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2018-09-26 09:27:25,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 09:27:25,402 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:27:25,402 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 09:27:25,402 INFO L423 AbstractCegarLoop]: === Iteration 2 === [productErr3ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:27:25,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:27:25,403 INFO L82 PathProgramCache]: Analyzing trace with hash 930088, now seen corresponding path program 1 times [2018-09-26 09:27:25,403 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:27:25,433 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:27:25,433 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 09:27:25,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 09:27:25,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 09:27:25,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-26 09:27:25,435 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 5 states. [2018-09-26 09:27:25,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:27:25,574 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2018-09-26 09:27:25,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-26 09:27:25,575 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-09-26 09:27:25,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:27:25,576 INFO L225 Difference]: With dead ends: 28 [2018-09-26 09:27:25,576 INFO L226 Difference]: Without dead ends: 26 [2018-09-26 09:27:25,579 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-09-26 09:27:25,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-09-26 09:27:25,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-09-26 09:27:25,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-09-26 09:27:25,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 39 transitions. [2018-09-26 09:27:25,596 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 39 transitions. Word has length 4 [2018-09-26 09:27:25,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:27:25,596 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 39 transitions. [2018-09-26 09:27:25,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 09:27:25,596 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2018-09-26 09:27:25,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 09:27:25,597 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:27:25,597 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-09-26 09:27:25,598 INFO L423 AbstractCegarLoop]: === Iteration 3 === [productErr3ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:27:25,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:27:25,598 INFO L82 PathProgramCache]: Analyzing trace with hash 28768015, now seen corresponding path program 1 times [2018-09-26 09:27:25,599 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:27:25,668 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:27:25,669 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-26 09:27:25,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 09:27:25,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 09:27:25,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-26 09:27:25,673 INFO L87 Difference]: Start difference. First operand 26 states and 39 transitions. Second operand 6 states. [2018-09-26 09:27:25,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:27:25,840 INFO L93 Difference]: Finished difference Result 37 states and 55 transitions. [2018-09-26 09:27:25,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-26 09:27:25,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-09-26 09:27:25,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:27:25,842 INFO L225 Difference]: With dead ends: 37 [2018-09-26 09:27:25,842 INFO L226 Difference]: Without dead ends: 35 [2018-09-26 09:27:25,843 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-09-26 09:27:25,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-09-26 09:27:25,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2018-09-26 09:27:25,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-09-26 09:27:25,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 50 transitions. [2018-09-26 09:27:25,863 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 50 transitions. Word has length 5 [2018-09-26 09:27:25,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:27:25,866 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 50 transitions. [2018-09-26 09:27:25,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 09:27:25,866 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2018-09-26 09:27:25,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 09:27:25,867 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:27:25,867 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-09-26 09:27:25,867 INFO L423 AbstractCegarLoop]: === Iteration 4 === [productErr3ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:27:25,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:27:25,868 INFO L82 PathProgramCache]: Analyzing trace with hash 28831153, now seen corresponding path program 1 times [2018-09-26 09:27:25,868 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:27:25,937 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:27:25,938 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-26 09:27:25,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 09:27:25,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 09:27:25,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-26 09:27:25,939 INFO L87 Difference]: Start difference. First operand 32 states and 50 transitions. Second operand 6 states. [2018-09-26 09:27:26,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:27:26,112 INFO L93 Difference]: Finished difference Result 44 states and 68 transitions. [2018-09-26 09:27:26,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-26 09:27:26,113 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-09-26 09:27:26,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:27:26,114 INFO L225 Difference]: With dead ends: 44 [2018-09-26 09:27:26,114 INFO L226 Difference]: Without dead ends: 42 [2018-09-26 09:27:26,116 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-09-26 09:27:26,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-09-26 09:27:26,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2018-09-26 09:27:26,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-09-26 09:27:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 63 transitions. [2018-09-26 09:27:26,144 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 63 transitions. Word has length 5 [2018-09-26 09:27:26,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:27:26,145 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 63 transitions. [2018-09-26 09:27:26,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 09:27:26,145 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 63 transitions. [2018-09-26 09:27:26,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 09:27:26,146 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:27:26,147 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2018-09-26 09:27:26,147 INFO L423 AbstractCegarLoop]: === Iteration 5 === [productErr3ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr1ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:27:26,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:27:26,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1866934377, now seen corresponding path program 1 times [2018-09-26 09:27:26,148 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Received shutdown request... [2018-09-26 09:31:49,946 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-26 09:31:49,952 WARN L206 ceAbstractionStarter]: Timeout [2018-09-26 09:31:49,952 INFO L202 PluginConnector]: Adding new model threadpooling_product_WithoutIf.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:31:49 BoogieIcfgContainer [2018-09-26 09:31:49,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 09:31:49,953 INFO L168 Benchmark]: Toolchain (without parser) took 265323.39 ms. Allocated memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: -430.4 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 421.6 MB). Peak memory consumption was 152.4 MB. Max. memory is 7.1 GB. [2018-09-26 09:31:49,956 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:31:49,957 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:31:49,958 INFO L168 Benchmark]: Boogie Preprocessor took 22.76 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:31:49,958 INFO L168 Benchmark]: RCFGBuilder took 254.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-26 09:31:49,960 INFO L168 Benchmark]: TraceAbstraction took 264995.85 ms. Allocated memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: -430.4 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 411.0 MB). Peak memory consumption was 141.8 MB. Max. memory is 7.1 GB. [2018-09-26 09:31:49,965 INFO L336 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 0.14 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 42.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.76 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 254.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 264995.85 ms. Allocated memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: -430.4 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 411.0 MB). Peak memory consumption was 141.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 78). Cancelled while BasicCegarLoop was analyzing trace of length 8 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 185 known predicates. - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 69). Cancelled while BasicCegarLoop was analyzing trace of length 8 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 185 known predicates. - TimeoutResultAtElement [Line: 37]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 37). Cancelled while BasicCegarLoop was analyzing trace of length 8 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 185 known predicates. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 58). Cancelled while BasicCegarLoop was analyzing trace of length 8 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 185 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 4 error locations. TIMEOUT Result, 264.9s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 105 SDtfs, 76 SDslu, 86 SDs, 0 SdLazy, 351 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/threadpooling_product_WithoutIf.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_09-31-49-983.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/threadpooling_product_WithoutIf.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_09-31-49-983.csv Completed graceful shutdown