java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf -i ../../../trunk/examples/programs/real-life/threadpooling_out.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:39:16,972 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:39:16,974 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:39:16,986 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:39:16,986 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:39:16,987 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:39:16,988 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:39:16,990 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:39:16,992 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:39:16,993 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:39:16,993 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 15:39:16,994 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 15:39:16,995 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 15:39:16,996 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 15:39:16,997 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 15:39:16,998 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 15:39:16,999 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 15:39:17,000 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 15:39:17,002 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 15:39:17,004 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 15:39:17,005 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 15:39:17,006 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 15:39:17,009 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 15:39:17,009 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 15:39:17,009 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 15:39:17,010 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 15:39:17,011 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 15:39:17,012 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 15:39:17,013 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 15:39:17,014 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 15:39:17,015 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 15:39:17,015 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 15:39:17,016 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 15:39:17,016 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 15:39:17,017 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 15:39:17,018 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 15:39:17,018 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf [2018-07-23 15:39:17,028 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:39:17,028 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:39:17,029 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:39:17,030 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 15:39:17,030 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:39:17,030 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:39:17,090 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:39:17,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:39:17,114 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:39:17,115 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:39:17,116 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:39:17,117 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_out.bpl [2018-07-23 15:39:17,117 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_out.bpl' [2018-07-23 15:39:17,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:39:17,194 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:39:17,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:39:17,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:39:17,195 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:39:17,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:17" (1/1) ... [2018-07-23 15:39:17,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:17" (1/1) ... [2018-07-23 15:39:17,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:17" (1/1) ... [2018-07-23 15:39:17,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:17" (1/1) ... [2018-07-23 15:39:17,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:17" (1/1) ... [2018-07-23 15:39:17,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:17" (1/1) ... [2018-07-23 15:39:17,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:17" (1/1) ... [2018-07-23 15:39:17,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:39:17,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:39:17,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:39:17,276 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:39:17,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:17" (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 [2018-07-23 15:39:17,356 INFO L124 BoogieDeclarations]: Specification and implementation of procedure product given in one single declaration [2018-07-23 15:39:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure product [2018-07-23 15:39:17,357 INFO L138 BoogieDeclarations]: Found implementation of procedure product [2018-07-23 15:39:18,267 INFO L258 CfgBuilder]: Using library mode [2018-07-23 15:39:18,268 INFO L202 PluginConnector]: Adding new model threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:39:18 BoogieIcfgContainer [2018-07-23 15:39:18,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:39:18,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:39:18,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:39:18,273 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:39:18,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:17" (1/2) ... [2018-07-23 15:39:18,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6addce and model type threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:39:18, skipping insertion in model container [2018-07-23 15:39:18,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:39:18" (2/2) ... [2018-07-23 15:39:18,277 INFO L112 eAbstractionObserver]: Analyzing ICFG threadpooling_out.bpl [2018-07-23 15:39:18,287 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:39:18,295 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2018-07-23 15:39:18,342 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:39:18,343 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:39:18,343 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:39:18,343 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 15:39:18,343 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:39:18,344 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:39:18,344 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:39:18,344 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:39:18,344 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:39:18,362 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-07-23 15:39:18,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 15:39:18,371 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:18,372 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-23 15:39:18,372 INFO L414 AbstractCegarLoop]: === Iteration 1 === [productErr5AssertViolationASSERT, productErr12AssertViolationASSERT, productErr8AssertViolationASSERT, productErr7AssertViolationASSERT, productErr0AssertViolationASSERT, productErr4AssertViolationASSERT, productErr10AssertViolationASSERT, productErr2AssertViolationASSERT, productErr9AssertViolationASSERT, productErr6AssertViolationASSERT, productErr3AssertViolationASSERT, productErr13AssertViolationASSERT, productErr1AssertViolationASSERT, productErr11AssertViolationASSERT]=== [2018-07-23 15:39:18,377 INFO L82 PathProgramCache]: Analyzing trace with hash -2113132074, now seen corresponding path program 1 times [2018-07-23 15:39:18,382 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:39:18,879 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:39:18,880 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 15:39:18,885 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 15:39:18,891 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 15:39:18,892 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-07-23 15:39:18,895 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 7 states. [2018-07-23 15:39:20,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:39:20,965 INFO L93 Difference]: Finished difference Result 213 states and 450 transitions. [2018-07-23 15:39:20,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 15:39:20,968 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2018-07-23 15:39:20,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:39:20,987 INFO L225 Difference]: With dead ends: 213 [2018-07-23 15:39:20,987 INFO L226 Difference]: Without dead ends: 201 [2018-07-23 15:39:20,991 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-07-23 15:39:21,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-07-23 15:39:21,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 95. [2018-07-23 15:39:21,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-07-23 15:39:21,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 199 transitions. [2018-07-23 15:39:21,063 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 199 transitions. Word has length 7 [2018-07-23 15:39:21,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:39:21,064 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 199 transitions. [2018-07-23 15:39:21,064 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 15:39:21,064 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 199 transitions. [2018-07-23 15:39:21,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 15:39:21,065 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:21,066 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-23 15:39:21,067 INFO L414 AbstractCegarLoop]: === Iteration 2 === [productErr5AssertViolationASSERT, productErr12AssertViolationASSERT, productErr8AssertViolationASSERT, productErr7AssertViolationASSERT, productErr0AssertViolationASSERT, productErr4AssertViolationASSERT, productErr10AssertViolationASSERT, productErr2AssertViolationASSERT, productErr9AssertViolationASSERT, productErr6AssertViolationASSERT, productErr3AssertViolationASSERT, productErr13AssertViolationASSERT, productErr1AssertViolationASSERT, productErr11AssertViolationASSERT]=== [2018-07-23 15:39:21,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1894705935, now seen corresponding path program 1 times [2018-07-23 15:39:21,067 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:39:21,295 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:39:21,295 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 15:39:21,298 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 15:39:21,298 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 15:39:21,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-07-23 15:39:21,299 INFO L87 Difference]: Start difference. First operand 95 states and 199 transitions. Second operand 7 states. [2018-07-23 15:39:22,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:39:22,280 INFO L93 Difference]: Finished difference Result 234 states and 505 transitions. [2018-07-23 15:39:22,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 15:39:22,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2018-07-23 15:39:22,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:39:22,286 INFO L225 Difference]: With dead ends: 234 [2018-07-23 15:39:22,286 INFO L226 Difference]: Without dead ends: 229 [2018-07-23 15:39:22,288 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-07-23 15:39:22,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2018-07-23 15:39:22,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 110. [2018-07-23 15:39:22,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-07-23 15:39:22,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 237 transitions. [2018-07-23 15:39:22,321 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 237 transitions. Word has length 7 [2018-07-23 15:39:22,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:39:22,321 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 237 transitions. [2018-07-23 15:39:22,322 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 15:39:22,322 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 237 transitions. [2018-07-23 15:39:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-23 15:39:22,323 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:22,323 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 15:39:22,323 INFO L414 AbstractCegarLoop]: === Iteration 3 === [productErr5AssertViolationASSERT, productErr12AssertViolationASSERT, productErr8AssertViolationASSERT, productErr7AssertViolationASSERT, productErr0AssertViolationASSERT, productErr4AssertViolationASSERT, productErr10AssertViolationASSERT, productErr2AssertViolationASSERT, productErr9AssertViolationASSERT, productErr6AssertViolationASSERT, productErr3AssertViolationASSERT, productErr13AssertViolationASSERT, productErr1AssertViolationASSERT, productErr11AssertViolationASSERT]=== [2018-07-23 15:39:22,324 INFO L82 PathProgramCache]: Analyzing trace with hash 672968560, now seen corresponding path program 1 times [2018-07-23 15:39:22,324 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:39:22,498 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:39:22,498 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 15:39:22,498 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 15:39:22,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 15:39:22,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-07-23 15:39:22,499 INFO L87 Difference]: Start difference. First operand 110 states and 237 transitions. Second operand 8 states. [2018-07-23 15:39:23,119 WARN L169 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-07-23 15:39:25,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:39:25,426 INFO L93 Difference]: Finished difference Result 316 states and 696 transitions. [2018-07-23 15:39:25,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-23 15:39:25,427 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2018-07-23 15:39:25,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:39:25,432 INFO L225 Difference]: With dead ends: 316 [2018-07-23 15:39:25,432 INFO L226 Difference]: Without dead ends: 311 [2018-07-23 15:39:25,433 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2018-07-23 15:39:25,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2018-07-23 15:39:25,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 145. [2018-07-23 15:39:25,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-07-23 15:39:25,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 321 transitions. [2018-07-23 15:39:25,473 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 321 transitions. Word has length 9 [2018-07-23 15:39:25,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:39:25,473 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 321 transitions. [2018-07-23 15:39:25,473 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 15:39:25,474 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 321 transitions. [2018-07-23 15:39:25,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-23 15:39:25,475 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:25,475 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 15:39:25,475 INFO L414 AbstractCegarLoop]: === Iteration 4 === [productErr5AssertViolationASSERT, productErr12AssertViolationASSERT, productErr8AssertViolationASSERT, productErr7AssertViolationASSERT, productErr0AssertViolationASSERT, productErr4AssertViolationASSERT, productErr10AssertViolationASSERT, productErr2AssertViolationASSERT, productErr9AssertViolationASSERT, productErr6AssertViolationASSERT, productErr3AssertViolationASSERT, productErr13AssertViolationASSERT, productErr1AssertViolationASSERT, productErr11AssertViolationASSERT]=== [2018-07-23 15:39:25,476 INFO L82 PathProgramCache]: Analyzing trace with hash 2061636985, now seen corresponding path program 1 times [2018-07-23 15:39:25,476 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:39:25,703 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:39:25,703 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 15:39:25,704 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 15:39:25,704 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 15:39:25,704 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-07-23 15:39:25,705 INFO L87 Difference]: Start difference. First operand 145 states and 321 transitions. Second operand 8 states. [2018-07-23 15:39:27,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:39:27,225 INFO L93 Difference]: Finished difference Result 366 states and 818 transitions. [2018-07-23 15:39:27,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-23 15:39:27,226 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2018-07-23 15:39:27,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:39:27,230 INFO L225 Difference]: With dead ends: 366 [2018-07-23 15:39:27,230 INFO L226 Difference]: Without dead ends: 361 [2018-07-23 15:39:27,231 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2018-07-23 15:39:27,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2018-07-23 15:39:27,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 163. [2018-07-23 15:39:27,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-07-23 15:39:27,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 361 transitions. [2018-07-23 15:39:27,270 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 361 transitions. Word has length 9 [2018-07-23 15:39:27,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:39:27,271 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 361 transitions. [2018-07-23 15:39:27,271 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 15:39:27,271 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 361 transitions. [2018-07-23 15:39:27,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-23 15:39:27,273 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:27,273 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 15:39:27,273 INFO L414 AbstractCegarLoop]: === Iteration 5 === [productErr5AssertViolationASSERT, productErr12AssertViolationASSERT, productErr8AssertViolationASSERT, productErr7AssertViolationASSERT, productErr0AssertViolationASSERT, productErr4AssertViolationASSERT, productErr10AssertViolationASSERT, productErr2AssertViolationASSERT, productErr9AssertViolationASSERT, productErr6AssertViolationASSERT, productErr3AssertViolationASSERT, productErr13AssertViolationASSERT, productErr1AssertViolationASSERT, productErr11AssertViolationASSERT]=== [2018-07-23 15:39:27,273 INFO L82 PathProgramCache]: Analyzing trace with hash -370364222, now seen corresponding path program 1 times [2018-07-23 15:39:27,274 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:39:34,929 WARN L169 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-07-23 15:41:34,122 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2018-07-23 15:42:46,945 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 Received shutdown request... [2018-07-23 15:43:47,029 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 15:43:47,035 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 15:43:47,035 INFO L202 PluginConnector]: Adding new model threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 03:43:47 BoogieIcfgContainer [2018-07-23 15:43:47,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 15:43:47,036 INFO L168 Benchmark]: Toolchain (without parser) took 269843.00 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -237.5 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 296.4 MB). Peak memory consumption was 58.9 MB. Max. memory is 7.1 GB. [2018-07-23 15:43:47,038 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2018-07-23 15:43:47,039 INFO L168 Benchmark]: Boogie Preprocessor took 77.53 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. [2018-07-23 15:43:47,039 INFO L168 Benchmark]: RCFGBuilder took 995.35 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-23 15:43:47,040 INFO L168 Benchmark]: TraceAbstraction took 268765.47 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -237.5 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 264.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2018-07-23 15:43:47,044 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 0.21 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 77.53 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 995.35 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 268765.47 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -237.5 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 264.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 240]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 240). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - TimeoutResultAtElement [Line: 332]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 332). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - TimeoutResultAtElement [Line: 264]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 264). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - TimeoutResultAtElement [Line: 250]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 250). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 54). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - TimeoutResultAtElement [Line: 229]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 229). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - TimeoutResultAtElement [Line: 284]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 284). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - TimeoutResultAtElement [Line: 205]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 205). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - TimeoutResultAtElement [Line: 277]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 277). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - TimeoutResultAtElement [Line: 247]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 247). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - TimeoutResultAtElement [Line: 222]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 222). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - TimeoutResultAtElement [Line: 364]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 364). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - TimeoutResultAtElement [Line: 154]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 154). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - TimeoutResultAtElement [Line: 294]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 294). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 144 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 66 locations, 14 error locations. TIMEOUT Result, 268.7s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 7.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 869 SDtfs, 1594 SDslu, 2219 SDs, 0 SdLazy, 2793 SolverSat, 306 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 786 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 589 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.0s 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_out.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_15-43-47-057.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/threadpooling_out.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_15-43-47-057.csv Completed graceful shutdown