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_product_WithProcedures.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:42:01,773 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:42:01,775 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:42:01,787 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:42:01,788 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:42:01,789 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:42:01,790 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:42:01,791 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:42:01,793 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:42:01,794 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:42:01,795 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 15:42:01,795 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 15:42:01,796 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 15:42:01,797 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 15:42:01,798 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 15:42:01,799 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 15:42:01,799 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 15:42:01,801 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 15:42:01,803 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 15:42:01,805 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 15:42:01,806 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 15:42:01,807 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 15:42:01,809 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 15:42:01,810 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 15:42:01,810 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 15:42:01,811 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 15:42:01,812 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 15:42:01,813 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 15:42:01,813 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 15:42:01,814 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 15:42:01,815 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 15:42:01,815 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 15:42:01,816 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 15:42:01,816 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 15:42:01,817 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 15:42:01,817 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 15:42:01,818 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 15:42:01,826 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:42:01,826 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:42:01,827 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:42:01,827 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 15:42:01,828 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:42:01,828 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:42:01,870 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:42:01,889 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:42:01,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:42:01,897 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:42:01,898 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:42:01,898 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_product_WithProcedures.bpl [2018-07-23 15:42:01,899 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_product_WithProcedures.bpl' [2018-07-23 15:42:01,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:42:01,964 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:42:01,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:42:01,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:42:01,965 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:42:01,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:42:01" (1/1) ... [2018-07-23 15:42:01,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:42:01" (1/1) ... [2018-07-23 15:42:02,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:42:01" (1/1) ... [2018-07-23 15:42:02,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:42:01" (1/1) ... [2018-07-23 15:42:02,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:42:01" (1/1) ... [2018-07-23 15:42:02,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:42:01" (1/1) ... [2018-07-23 15:42:02,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:42:01" (1/1) ... [2018-07-23 15:42:02,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:42:02,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:42:02,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:42:02,030 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:42:02,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:42:01" (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 15:42:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure l0l0 [2018-07-23 15:42:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure l1l0 [2018-07-23 15:42:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure l0l1 [2018-07-23 15:42:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure l1l1 [2018-07-23 15:42:02,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 15:42:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 15:42:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure l0l0 [2018-07-23 15:42:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure l1l0 [2018-07-23 15:42:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure l0l1 [2018-07-23 15:42:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure l1l1 [2018-07-23 15:42:02,641 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 15:42:02,642 INFO L202 PluginConnector]: Adding new model threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:42:02 BoogieIcfgContainer [2018-07-23 15:42:02,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:42:02,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:42:02,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:42:02,646 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:42:02,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:42:01" (1/2) ... [2018-07-23 15:42:02,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ae403c and model type threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:42:02, skipping insertion in model container [2018-07-23 15:42:02,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:42:02" (2/2) ... [2018-07-23 15:42:02,650 INFO L112 eAbstractionObserver]: Analyzing ICFG threadpooling_product_WithProcedures.bpl [2018-07-23 15:42:02,660 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:42:02,668 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-07-23 15:42:02,717 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:42:02,718 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:42:02,718 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:42:02,719 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 15:42:02,719 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:42:02,719 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:42:02,719 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:42:02,719 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:42:02,719 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:42:02,741 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-07-23 15:42:02,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 15:42:02,756 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:42:02,757 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-23 15:42:02,757 INFO L414 AbstractCegarLoop]: === Iteration 1 === [l1l0Err0AssertViolationASSERT, l0l1Err0AssertViolationASSERT, l1l1Err0AssertViolationASSERT, l1l1Err1AssertViolationASSERT]=== [2018-07-23 15:42:02,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1282157605, now seen corresponding path program 1 times [2018-07-23 15:42:02,770 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:42:03,131 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:42:03,131 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 15:42:03,136 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 15:42:03,143 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 15:42:03,144 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-07-23 15:42:03,147 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 6 states. [2018-07-23 15:42:03,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:42:03,895 INFO L93 Difference]: Finished difference Result 76 states and 107 transitions. [2018-07-23 15:42:03,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 15:42:03,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2018-07-23 15:42:03,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:42:03,912 INFO L225 Difference]: With dead ends: 76 [2018-07-23 15:42:03,912 INFO L226 Difference]: Without dead ends: 74 [2018-07-23 15:42:03,916 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-07-23 15:42:03,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-07-23 15:42:03,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 48. [2018-07-23 15:42:03,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-23 15:42:03,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2018-07-23 15:42:03,968 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 7 [2018-07-23 15:42:03,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:42:03,969 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2018-07-23 15:42:03,969 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 15:42:03,969 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2018-07-23 15:42:03,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 15:42:03,970 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:42:03,971 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-23 15:42:03,971 INFO L414 AbstractCegarLoop]: === Iteration 2 === [l1l0Err0AssertViolationASSERT, l0l1Err0AssertViolationASSERT, l1l1Err0AssertViolationASSERT, l1l1Err1AssertViolationASSERT]=== [2018-07-23 15:42:03,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1272619553, now seen corresponding path program 1 times [2018-07-23 15:42:03,972 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:42:04,439 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:42:04,439 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 15:42:04,440 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 15:42:04,441 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 15:42:04,441 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-07-23 15:42:04,442 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 6 states. [2018-07-23 15:42:04,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:42:04,870 INFO L93 Difference]: Finished difference Result 86 states and 122 transitions. [2018-07-23 15:42:04,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 15:42:04,872 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2018-07-23 15:42:04,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:42:04,874 INFO L225 Difference]: With dead ends: 86 [2018-07-23 15:42:04,875 INFO L226 Difference]: Without dead ends: 84 [2018-07-23 15:42:04,876 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-07-23 15:42:04,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-07-23 15:42:04,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 57. [2018-07-23 15:42:04,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-07-23 15:42:04,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 78 transitions. [2018-07-23 15:42:04,892 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 78 transitions. Word has length 7 [2018-07-23 15:42:04,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:42:04,892 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 78 transitions. [2018-07-23 15:42:04,893 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 15:42:04,893 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 78 transitions. [2018-07-23 15:42:04,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-23 15:42:04,894 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:42:04,894 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 15:42:04,895 INFO L414 AbstractCegarLoop]: === Iteration 3 === [l1l0Err0AssertViolationASSERT, l0l1Err0AssertViolationASSERT, l1l1Err0AssertViolationASSERT, l1l1Err1AssertViolationASSERT]=== [2018-07-23 15:42:04,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1601446133, now seen corresponding path program 1 times [2018-07-23 15:42:04,895 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:42:05,295 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:42:05,295 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 15:42:05,296 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 15:42:05,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 15:42:05,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2018-07-23 15:42:05,297 INFO L87 Difference]: Start difference. First operand 57 states and 78 transitions. Second operand 8 states. [2018-07-23 15:42:06,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:42:06,450 INFO L93 Difference]: Finished difference Result 130 states and 190 transitions. [2018-07-23 15:42:06,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 15:42:06,454 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2018-07-23 15:42:06,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:42:06,456 INFO L225 Difference]: With dead ends: 130 [2018-07-23 15:42:06,456 INFO L226 Difference]: Without dead ends: 128 [2018-07-23 15:42:06,457 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 309 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2018-07-23 15:42:06,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-07-23 15:42:06,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 73. [2018-07-23 15:42:06,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-07-23 15:42:06,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 103 transitions. [2018-07-23 15:42:06,481 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 103 transitions. Word has length 10 [2018-07-23 15:42:06,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:42:06,482 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 103 transitions. [2018-07-23 15:42:06,482 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 15:42:06,482 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 103 transitions. [2018-07-23 15:42:06,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-23 15:42:06,483 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:42:06,484 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 15:42:06,484 INFO L414 AbstractCegarLoop]: === Iteration 4 === [l1l0Err0AssertViolationASSERT, l0l1Err0AssertViolationASSERT, l1l1Err0AssertViolationASSERT, l1l1Err1AssertViolationASSERT]=== [2018-07-23 15:42:06,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1152651256, now seen corresponding path program 1 times [2018-07-23 15:42:06,485 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:42:06,702 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:42:06,703 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 15:42:06,704 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 15:42:06,704 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 15:42:06,704 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-07-23 15:42:06,705 INFO L87 Difference]: Start difference. First operand 73 states and 103 transitions. Second operand 6 states. [2018-07-23 15:42:07,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:42:07,770 INFO L93 Difference]: Finished difference Result 114 states and 165 transitions. [2018-07-23 15:42:07,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 15:42:07,776 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-07-23 15:42:07,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:42:07,777 INFO L225 Difference]: With dead ends: 114 [2018-07-23 15:42:07,777 INFO L226 Difference]: Without dead ends: 112 [2018-07-23 15:42:07,778 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-07-23 15:42:07,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-07-23 15:42:07,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 78. [2018-07-23 15:42:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-07-23 15:42:07,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 111 transitions. [2018-07-23 15:42:07,816 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 111 transitions. Word has length 10 [2018-07-23 15:42:07,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:42:07,817 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 111 transitions. [2018-07-23 15:42:07,817 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 15:42:07,817 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 111 transitions. [2018-07-23 15:42:07,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-23 15:42:07,818 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:42:07,819 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 15:42:07,819 INFO L414 AbstractCegarLoop]: === Iteration 5 === [l1l0Err0AssertViolationASSERT, l0l1Err0AssertViolationASSERT, l1l1Err0AssertViolationASSERT, l1l1Err1AssertViolationASSERT]=== [2018-07-23 15:42:07,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1800504244, now seen corresponding path program 1 times [2018-07-23 15:42:07,819 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:42:08,029 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:42:08,030 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 15:42:08,030 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 15:42:08,031 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 15:42:08,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-07-23 15:42:08,031 INFO L87 Difference]: Start difference. First operand 78 states and 111 transitions. Second operand 7 states. [2018-07-23 15:42:08,837 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-07-23 15:42:09,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:42:09,158 INFO L93 Difference]: Finished difference Result 167 states and 249 transitions. [2018-07-23 15:42:09,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-23 15:42:09,159 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-07-23 15:42:09,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:42:09,161 INFO L225 Difference]: With dead ends: 167 [2018-07-23 15:42:09,162 INFO L226 Difference]: Without dead ends: 165 [2018-07-23 15:42:09,163 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2018-07-23 15:42:09,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-07-23 15:42:09,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 88. [2018-07-23 15:42:09,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-07-23 15:42:09,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 128 transitions. [2018-07-23 15:42:09,190 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 128 transitions. Word has length 10 [2018-07-23 15:42:09,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:42:09,190 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 128 transitions. [2018-07-23 15:42:09,190 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 15:42:09,190 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 128 transitions. [2018-07-23 15:42:09,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-23 15:42:09,192 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:42:09,192 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 15:42:09,192 INFO L414 AbstractCegarLoop]: === Iteration 6 === [l1l0Err0AssertViolationASSERT, l0l1Err0AssertViolationASSERT, l1l1Err0AssertViolationASSERT, l1l1Err1AssertViolationASSERT]=== [2018-07-23 15:42:09,193 INFO L82 PathProgramCache]: Analyzing trace with hash -942149941, now seen corresponding path program 1 times [2018-07-23 15:42:09,193 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:42:09,388 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:42:09,388 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 15:42:09,389 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 15:42:09,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 15:42:09,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2018-07-23 15:42:09,390 INFO L87 Difference]: Start difference. First operand 88 states and 128 transitions. Second operand 8 states. [2018-07-23 15:42:10,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:42:10,451 INFO L93 Difference]: Finished difference Result 179 states and 268 transitions. [2018-07-23 15:42:10,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 15:42:10,453 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2018-07-23 15:42:10,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:42:10,455 INFO L225 Difference]: With dead ends: 179 [2018-07-23 15:42:10,455 INFO L226 Difference]: Without dead ends: 177 [2018-07-23 15:42:10,456 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2018-07-23 15:42:10,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-07-23 15:42:10,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 90. [2018-07-23 15:42:10,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-07-23 15:42:10,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 131 transitions. [2018-07-23 15:42:10,483 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 131 transitions. Word has length 10 [2018-07-23 15:42:10,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:42:10,483 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 131 transitions. [2018-07-23 15:42:10,483 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 15:42:10,484 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 131 transitions. [2018-07-23 15:42:10,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-23 15:42:10,485 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:42:10,485 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 15:42:10,485 INFO L414 AbstractCegarLoop]: === Iteration 7 === [l1l0Err0AssertViolationASSERT, l0l1Err0AssertViolationASSERT, l1l1Err0AssertViolationASSERT, l1l1Err1AssertViolationASSERT]=== [2018-07-23 15:42:10,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1536370777, now seen corresponding path program 1 times [2018-07-23 15:42:10,486 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:43:21,616 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2018-07-23 15:44:01,408 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2018-07-23 15:44:58,344 WARN L169 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2018-07-23 15:46:15,578 WARN L169 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 79 Received shutdown request... [2018-07-23 15:46:32,487 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 15:46:32,491 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 15:46:32,492 INFO L202 PluginConnector]: Adding new model threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 03:46:32 BoogieIcfgContainer [2018-07-23 15:46:32,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 15:46:32,493 INFO L168 Benchmark]: Toolchain (without parser) took 270530.53 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -240.6 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 395.6 MB). Peak memory consumption was 155.0 MB. Max. memory is 7.1 GB. [2018-07-23 15:46:32,494 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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 15:46:32,495 INFO L168 Benchmark]: Boogie Preprocessor took 64.69 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 15:46:32,495 INFO L168 Benchmark]: RCFGBuilder took 612.20 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 15:46:32,496 INFO L168 Benchmark]: TraceAbstraction took 269848.76 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -240.6 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 374.5 MB). Peak memory consumption was 133.8 MB. Max. memory is 7.1 GB. [2018-07-23 15:46:32,504 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 0.20 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 64.69 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 612.20 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 269848.76 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -240.6 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 374.5 MB). Peak memory consumption was 133.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 66). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 122 known predicates. - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 99). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 122 known predicates. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 112). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 122 known predicates. - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 121). Cancelled while BasicCegarLoop was analyzing trace of length 12 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantifier-free) to 122 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 4 error locations. TIMEOUT Result, 269.7s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 5.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 438 SDtfs, 377 SDslu, 465 SDs, 0 SdLazy, 1585 SolverSat, 276 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1456 GetRequests, 1353 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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, 306 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.8s 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_WithProcedures.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_15-46-32-527.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/threadpooling_product_WithProcedures.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_15-46-32-527.csv Completed graceful shutdown