java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr.epf -i ../../../trunk/examples/programs/real-life/threadpooling_product.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 09:01:15,028 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 09:01:15,030 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 09:01:15,042 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 09:01:15,042 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 09:01:15,044 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 09:01:15,045 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 09:01:15,047 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 09:01:15,049 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 09:01:15,050 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 09:01:15,050 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 09:01:15,051 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 09:01:15,052 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 09:01:15,053 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 09:01:15,054 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 09:01:15,055 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 09:01:15,056 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 09:01:15,058 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 09:01:15,059 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 09:01:15,061 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 09:01:15,062 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 09:01:15,064 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 09:01:15,067 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 09:01:15,067 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 09:01:15,067 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 09:01:15,068 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 09:01:15,069 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 09:01:15,070 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 09:01:15,071 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 09:01:15,072 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 09:01:15,073 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 09:01:15,073 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 09:01:15,074 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 09:01:15,074 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 09:01:15,075 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 09:01:15,076 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 09:01:15,076 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr.epf [2018-07-25 09:01:15,086 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 09:01:15,086 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 09:01:15,090 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 09:01:15,091 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 09:01:15,091 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 09:01:15,091 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 09:01:15,158 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 09:01:15,176 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 09:01:15,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 09:01:15,182 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 09:01:15,182 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 09:01:15,183 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_product.bpl [2018-07-25 09:01:15,183 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_product.bpl' [2018-07-25 09:01:15,227 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 09:01:15,229 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 09:01:15,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 09:01:15,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 09:01:15,230 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 09:01:15,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:01:15" (1/1) ... [2018-07-25 09:01:15,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:01:15" (1/1) ... [2018-07-25 09:01:15,266 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 09:01:15,266 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 09:01:15,267 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 09:01:15,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 09:01:15,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 09:01:15,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 09:01:15,270 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 09:01:15,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:01:15" (1/1) ... [2018-07-25 09:01:15,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:01:15" (1/1) ... [2018-07-25 09:01:15,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:01:15" (1/1) ... [2018-07-25 09:01:15,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:01:15" (1/1) ... [2018-07-25 09:01:15,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:01:15" (1/1) ... [2018-07-25 09:01:15,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:01:15" (1/1) ... [2018-07-25 09:01:15,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:01:15" (1/1) ... [2018-07-25 09:01:15,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 09:01:15,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 09:01:15,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 09:01:15,292 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 09:01:15,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:01:15" (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 [2018-07-25 09:01:15,370 INFO L124 BoogieDeclarations]: Specification and implementation of procedure product given in one single declaration [2018-07-25 09:01:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure product [2018-07-25 09:01:15,371 INFO L138 BoogieDeclarations]: Found implementation of procedure product [2018-07-25 09:01:15,869 INFO L270 CfgBuilder]: Using library mode [2018-07-25 09:01:15,870 INFO L202 PluginConnector]: Adding new model threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 09:01:15 BoogieIcfgContainer [2018-07-25 09:01:15,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 09:01:15,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 09:01:15,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 09:01:15,875 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 09:01:15,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:01:15" (1/2) ... [2018-07-25 09:01:15,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388099ac and model type threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 09:01:15, skipping insertion in model container [2018-07-25 09:01:15,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 09:01:15" (2/2) ... [2018-07-25 09:01:15,879 INFO L112 eAbstractionObserver]: Analyzing ICFG threadpooling_product.bpl [2018-07-25 09:01:15,889 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 09:01:15,898 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-07-25 09:01:15,946 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 09:01:15,947 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 09:01:15,947 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 09:01:15,948 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 09:01:15,948 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 09:01:15,948 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 09:01:15,948 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 09:01:15,948 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 09:01:15,949 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 09:01:15,964 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-07-25 09:01:15,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-25 09:01:15,973 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:01:15,974 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-07-25 09:01:15,975 INFO L415 AbstractCegarLoop]: === Iteration 1 === [productErr1ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:01:15,980 INFO L82 PathProgramCache]: Analyzing trace with hash 28755683, now seen corresponding path program 1 times [2018-07-25 09:01:15,986 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:01:16,263 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 09:01:16,264 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-25 09:01:16,268 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 09:01:16,274 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 09:01:16,275 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-07-25 09:01:16,277 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 6 states. [2018-07-25 09:01:16,688 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-25 09:01:16,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 09:01:16,981 INFO L93 Difference]: Finished difference Result 44 states and 75 transitions. [2018-07-25 09:01:16,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-25 09:01:16,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-07-25 09:01:16,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 09:01:16,998 INFO L225 Difference]: With dead ends: 44 [2018-07-25 09:01:16,998 INFO L226 Difference]: Without dead ends: 42 [2018-07-25 09:01:17,002 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-07-25 09:01:17,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-07-25 09:01:17,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2018-07-25 09:01:17,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-07-25 09:01:17,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 45 transitions. [2018-07-25 09:01:17,043 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 45 transitions. Word has length 5 [2018-07-25 09:01:17,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 09:01:17,043 INFO L472 AbstractCegarLoop]: Abstraction has 28 states and 45 transitions. [2018-07-25 09:01:17,043 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 09:01:17,044 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 45 transitions. [2018-07-25 09:01:17,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-25 09:01:17,044 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:01:17,045 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-07-25 09:01:17,045 INFO L415 AbstractCegarLoop]: === Iteration 2 === [productErr1ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:01:17,047 INFO L82 PathProgramCache]: Analyzing trace with hash 28971747, now seen corresponding path program 1 times [2018-07-25 09:01:17,047 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:01:17,208 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 09:01:17,208 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-25 09:01:17,210 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 09:01:17,210 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 09:01:17,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-07-25 09:01:17,211 INFO L87 Difference]: Start difference. First operand 28 states and 45 transitions. Second operand 6 states. [2018-07-25 09:01:17,729 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-25 09:01:17,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 09:01:17,878 INFO L93 Difference]: Finished difference Result 51 states and 87 transitions. [2018-07-25 09:01:17,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-25 09:01:17,879 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-07-25 09:01:17,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 09:01:17,881 INFO L225 Difference]: With dead ends: 51 [2018-07-25 09:01:17,881 INFO L226 Difference]: Without dead ends: 49 [2018-07-25 09:01:17,883 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-07-25 09:01:17,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-07-25 09:01:17,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 34. [2018-07-25 09:01:17,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-07-25 09:01:17,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 55 transitions. [2018-07-25 09:01:17,894 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 55 transitions. Word has length 5 [2018-07-25 09:01:17,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 09:01:17,894 INFO L472 AbstractCegarLoop]: Abstraction has 34 states and 55 transitions. [2018-07-25 09:01:17,894 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 09:01:17,895 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 55 transitions. [2018-07-25 09:01:17,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 09:01:17,895 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:01:17,896 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 09:01:17,896 INFO L415 AbstractCegarLoop]: === Iteration 3 === [productErr1ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:01:17,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1864688358, now seen corresponding path program 1 times [2018-07-25 09:01:17,896 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:01:18,182 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 09:01:18,183 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 09:01:18,183 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 09:01:18,183 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 09:01:18,184 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2018-07-25 09:01:18,184 INFO L87 Difference]: Start difference. First operand 34 states and 55 transitions. Second operand 8 states. [2018-07-25 09:01:18,673 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-25 09:01:19,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 09:01:19,367 INFO L93 Difference]: Finished difference Result 82 states and 142 transitions. [2018-07-25 09:01:19,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-25 09:01:19,368 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 09:01:19,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 09:01:19,370 INFO L225 Difference]: With dead ends: 82 [2018-07-25 09:01:19,370 INFO L226 Difference]: Without dead ends: 80 [2018-07-25 09:01:19,372 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2018-07-25 09:01:19,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-07-25 09:01:19,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 44. [2018-07-25 09:01:19,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-25 09:01:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 74 transitions. [2018-07-25 09:01:19,385 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 74 transitions. Word has length 7 [2018-07-25 09:01:19,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 09:01:19,385 INFO L472 AbstractCegarLoop]: Abstraction has 44 states and 74 transitions. [2018-07-25 09:01:19,386 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 09:01:19,386 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 74 transitions. [2018-07-25 09:01:19,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 09:01:19,387 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:01:19,387 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2018-07-25 09:01:19,387 INFO L415 AbstractCegarLoop]: === Iteration 4 === [productErr1ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:01:19,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1865765160, now seen corresponding path program 1 times [2018-07-25 09:01:19,388 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:01:19,563 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 09:01:19,564 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-25 09:01:19,564 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 09:01:19,564 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 09:01:19,565 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-07-25 09:01:19,565 INFO L87 Difference]: Start difference. First operand 44 states and 74 transitions. Second operand 6 states. [2018-07-25 09:01:19,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 09:01:19,861 INFO L93 Difference]: Finished difference Result 70 states and 121 transitions. [2018-07-25 09:01:19,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-25 09:01:19,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2018-07-25 09:01:19,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 09:01:19,864 INFO L225 Difference]: With dead ends: 70 [2018-07-25 09:01:19,864 INFO L226 Difference]: Without dead ends: 68 [2018-07-25 09:01:19,865 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-07-25 09:01:19,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-07-25 09:01:19,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 47. [2018-07-25 09:01:19,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-07-25 09:01:19,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 80 transitions. [2018-07-25 09:01:19,879 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 80 transitions. Word has length 7 [2018-07-25 09:01:19,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 09:01:19,879 INFO L472 AbstractCegarLoop]: Abstraction has 47 states and 80 transitions. [2018-07-25 09:01:19,879 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 09:01:19,879 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 80 transitions. [2018-07-25 09:01:19,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 09:01:19,880 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:01:19,880 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 09:01:19,881 INFO L415 AbstractCegarLoop]: === Iteration 5 === [productErr1ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:01:19,881 INFO L82 PathProgramCache]: Analyzing trace with hash 2072633864, now seen corresponding path program 1 times [2018-07-25 09:01:19,881 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:01:20,049 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 09:01:20,049 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 09:01:20,049 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 09:01:20,050 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 09:01:20,050 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-07-25 09:01:20,050 INFO L87 Difference]: Start difference. First operand 47 states and 80 transitions. Second operand 7 states. [2018-07-25 09:01:20,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 09:01:20,571 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2018-07-25 09:01:20,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-25 09:01:20,572 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2018-07-25 09:01:20,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 09:01:20,575 INFO L225 Difference]: With dead ends: 108 [2018-07-25 09:01:20,575 INFO L226 Difference]: Without dead ends: 106 [2018-07-25 09:01:20,576 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2018-07-25 09:01:20,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-07-25 09:01:20,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 55. [2018-07-25 09:01:20,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-07-25 09:01:20,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 95 transitions. [2018-07-25 09:01:20,598 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 95 transitions. Word has length 7 [2018-07-25 09:01:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 09:01:20,599 INFO L472 AbstractCegarLoop]: Abstraction has 55 states and 95 transitions. [2018-07-25 09:01:20,599 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 09:01:20,599 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 95 transitions. [2018-07-25 09:01:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-25 09:01:20,600 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:01:20,600 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-25 09:01:20,600 INFO L415 AbstractCegarLoop]: === Iteration 6 === [productErr1ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:01:20,601 INFO L82 PathProgramCache]: Analyzing trace with hash 2071833542, now seen corresponding path program 1 times [2018-07-25 09:01:20,601 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:01:20,780 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 09:01:20,780 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 09:01:20,781 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 09:01:20,781 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 09:01:20,781 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2018-07-25 09:01:20,782 INFO L87 Difference]: Start difference. First operand 55 states and 95 transitions. Second operand 8 states. [2018-07-25 09:01:21,392 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-07-25 09:01:22,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 09:01:22,003 INFO L93 Difference]: Finished difference Result 116 states and 205 transitions. [2018-07-25 09:01:22,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-25 09:01:22,007 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-25 09:01:22,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 09:01:22,009 INFO L225 Difference]: With dead ends: 116 [2018-07-25 09:01:22,009 INFO L226 Difference]: Without dead ends: 114 [2018-07-25 09:01:22,010 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2018-07-25 09:01:22,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-07-25 09:01:22,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 56. [2018-07-25 09:01:22,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-07-25 09:01:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 97 transitions. [2018-07-25 09:01:22,030 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 97 transitions. Word has length 7 [2018-07-25 09:01:22,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 09:01:22,031 INFO L472 AbstractCegarLoop]: Abstraction has 56 states and 97 transitions. [2018-07-25 09:01:22,031 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 09:01:22,031 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 97 transitions. [2018-07-25 09:01:22,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 09:01:22,032 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:01:22,032 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-07-25 09:01:22,032 INFO L415 AbstractCegarLoop]: === Iteration 7 === [productErr1ASSERT_VIOLATIONASSERT, productErr0ASSERT_VIOLATIONASSERT, productErr2ASSERT_VIOLATIONASSERT, productErr3ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:01:22,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1962114806, now seen corresponding path program 1 times [2018-07-25 09:01:22,033 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:01:27,783 WARN L169 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33 [2018-07-25 09:02:25,297 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2018-07-25 09:02:53,419 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2018-07-25 09:03:31,663 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2018-07-25 09:04:22,840 WARN L169 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2018-07-25 09:05:29,400 WARN L169 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 Received shutdown request... [2018-07-25 09:05:45,472 WARN L541 AbstractCegarLoop]: Verification canceled [2018-07-25 09:05:45,476 WARN L202 ceAbstractionStarter]: Timeout [2018-07-25 09:05:45,477 INFO L202 PluginConnector]: Adding new model threadpooling_product.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 09:05:45 BoogieIcfgContainer [2018-07-25 09:05:45,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 09:05:45,478 INFO L168 Benchmark]: Toolchain (without parser) took 270250.29 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -244.3 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 224.4 MB). Peak memory consumption was 340.5 MB. Max. memory is 7.1 GB. [2018-07-25 09:05:45,480 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 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. [2018-07-25 09:05:45,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.63 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. [2018-07-25 09:05:45,481 INFO L168 Benchmark]: Boogie Preprocessor took 21.62 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. [2018-07-25 09:05:45,482 INFO L168 Benchmark]: RCFGBuilder took 578.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-25 09:05:45,483 INFO L168 Benchmark]: TraceAbstraction took 269605.67 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -244.3 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 203.3 MB). Peak memory consumption was 319.4 MB. Max. memory is 7.1 GB. [2018-07-25 09:05:45,487 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 0.24 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 39.63 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 21.62 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 578.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 269605.67 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -244.3 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 203.3 MB). Peak memory consumption was 319.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 74). Cancelled while BasicCegarLoop was analyzing trace of length 9 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 142 known predicates. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 45). Cancelled while BasicCegarLoop was analyzing trace of length 9 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 142 known predicates. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 85). Cancelled while BasicCegarLoop was analyzing trace of length 9 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 142 known predicates. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 94). Cancelled while BasicCegarLoop was analyzing trace of length 9 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 142 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 4 error locations. TIMEOUT Result, 269.5s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 4.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 264 SDtfs, 289 SDslu, 389 SDs, 0 SdLazy, 1022 SolverSat, 142 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 660 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=6, 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, 6 MinimizatonAttempts, 195 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.2s 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.bpl_AutomizerBpl-pdr.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_09-05-45-500.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/threadpooling_product.bpl_AutomizerBpl-pdr.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_09-05-45-500.csv Completed graceful shutdown