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-z3.epf -i ../../../trunk/examples/programs/real-life/s3_clnt_1_Unsafe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 13:40:05,682 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 13:40:05,684 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 13:40:05,695 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 13:40:05,696 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 13:40:05,697 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 13:40:05,698 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 13:40:05,700 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 13:40:05,702 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 13:40:05,703 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 13:40:05,704 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 13:40:05,704 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 13:40:05,705 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 13:40:05,706 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 13:40:05,707 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 13:40:05,708 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 13:40:05,709 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 13:40:05,710 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 13:40:05,712 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 13:40:05,714 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 13:40:05,715 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 13:40:05,716 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 13:40:05,719 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 13:40:05,719 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 13:40:05,719 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 13:40:05,720 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 13:40:05,722 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 13:40:05,722 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 13:40:05,723 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 13:40:05,724 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 13:40:05,725 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 13:40:05,725 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 13:40:05,726 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 13:40:05,726 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 13:40:05,727 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 13:40:05,728 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 13:40:05,728 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-07-25 13:40:05,736 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 13:40:05,736 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 13:40:05,738 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 13:40:05,738 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 13:40:05,738 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 13:40:05,739 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:40:05,739 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 13:40:05,800 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 13:40:05,813 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 13:40:05,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 13:40:05,819 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 13:40:05,820 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 13:40:05,820 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/s3_clnt_1_Unsafe.bpl [2018-07-25 13:40:05,821 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/s3_clnt_1_Unsafe.bpl' [2018-07-25 13:40:05,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 13:40:05,915 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 13:40:05,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 13:40:05,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 13:40:05,916 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 13:40:05,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:40:05" (1/1) ... [2018-07-25 13:40:05,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:40:05" (1/1) ... [2018-07-25 13:40:05,957 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 13:40:05,958 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 13:40:05,958 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 13:40:05,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 13:40:05,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 13:40:05,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 13:40:05,962 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 13:40:05,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:40:05" (1/1) ... [2018-07-25 13:40:05,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:40:05" (1/1) ... [2018-07-25 13:40:05,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:40:05" (1/1) ... [2018-07-25 13:40:05,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:40:05" (1/1) ... [2018-07-25 13:40:05,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:40:05" (1/1) ... [2018-07-25 13:40:06,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:40:05" (1/1) ... [2018-07-25 13:40:06,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:40:05" (1/1) ... [2018-07-25 13:40:06,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 13:40:06,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 13:40:06,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 13:40:06,021 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 13:40:06,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:40:05" (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 13:40:06,092 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2018-07-25 13:40:06,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2018-07-25 13:40:06,253 WARN L494 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-07-25 13:40:06,254 WARN L459 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-07-25 13:40:08,282 INFO L270 CfgBuilder]: Using library mode [2018-07-25 13:40:08,283 INFO L202 PluginConnector]: Adding new model s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:40:08 BoogieIcfgContainer [2018-07-25 13:40:08,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 13:40:08,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 13:40:08,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 13:40:08,288 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 13:40:08,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:40:05" (1/2) ... [2018-07-25 13:40:08,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf7cb0b and model type s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 01:40:08, skipping insertion in model container [2018-07-25 13:40:08,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:40:08" (2/2) ... [2018-07-25 13:40:08,292 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_1_Unsafe.bpl [2018-07-25 13:40:08,302 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 13:40:08,311 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 13:40:08,358 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 13:40:08,359 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 13:40:08,359 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 13:40:08,359 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 13:40:08,359 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 13:40:08,359 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 13:40:08,360 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 13:40:08,360 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 13:40:08,360 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 13:40:08,380 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2018-07-25 13:40:08,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-25 13:40:08,390 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:40:08,391 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:40:08,392 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:40:08,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1665493148, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:40:08,418 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:40:09,588 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:40:09,589 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 13:40:09,594 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 13:40:09,601 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 13:40:09,602 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-25 13:40:09,605 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 4 states. [2018-07-25 13:40:10,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:40:10,412 INFO L93 Difference]: Finished difference Result 199 states and 338 transitions. [2018-07-25 13:40:10,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 13:40:10,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-07-25 13:40:10,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:40:10,432 INFO L225 Difference]: With dead ends: 199 [2018-07-25 13:40:10,433 INFO L226 Difference]: Without dead ends: 185 [2018-07-25 13:40:10,437 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 1824 GetRequests, 1807 SyntacticMatches, 13 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-25 13:40:10,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-07-25 13:40:10,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 179. [2018-07-25 13:40:10,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-07-25 13:40:10,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 270 transitions. [2018-07-25 13:40:10,504 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 270 transitions. Word has length 20 [2018-07-25 13:40:10,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:40:10,505 INFO L472 AbstractCegarLoop]: Abstraction has 179 states and 270 transitions. [2018-07-25 13:40:10,505 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 13:40:10,505 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 270 transitions. [2018-07-25 13:40:10,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-25 13:40:10,508 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:40:10,508 INFO L354 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:40:10,509 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:40:10,509 INFO L82 PathProgramCache]: Analyzing trace with hash -501953491, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:40:10,520 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:40:11,783 WARN L169 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2018-07-25 13:40:12,123 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-07-25 13:40:12,558 WARN L169 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-07-25 13:40:12,852 WARN L169 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-07-25 13:40:14,797 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:40:14,797 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-07-25 13:40:14,799 INFO L451 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-25 13:40:14,799 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-25 13:40:14,800 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-07-25 13:40:14,801 INFO L87 Difference]: Start difference. First operand 179 states and 270 transitions. Second operand 9 states. [2018-07-25 13:40:15,254 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2018-07-25 13:40:17,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:40:17,887 INFO L93 Difference]: Finished difference Result 665 states and 1057 transitions. [2018-07-25 13:40:17,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-25 13:40:17,887 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2018-07-25 13:40:17,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:40:17,896 INFO L225 Difference]: With dead ends: 665 [2018-07-25 13:40:17,897 INFO L226 Difference]: Without dead ends: 663 [2018-07-25 13:40:17,899 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14673 GetRequests, 14621 SyntacticMatches, 24 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2018-07-25 13:40:17,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2018-07-25 13:40:17,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 374. [2018-07-25 13:40:17,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2018-07-25 13:40:17,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 578 transitions. [2018-07-25 13:40:17,992 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 578 transitions. Word has length 39 [2018-07-25 13:40:17,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:40:17,992 INFO L472 AbstractCegarLoop]: Abstraction has 374 states and 578 transitions. [2018-07-25 13:40:17,993 INFO L473 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-25 13:40:17,993 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 578 transitions. [2018-07-25 13:40:17,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-25 13:40:17,996 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:40:17,996 INFO L354 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:40:17,996 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:40:17,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1614803692, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:40:18,014 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:40:18,735 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:40:18,735 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 13:40:18,735 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 13:40:18,736 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 13:40:18,736 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-25 13:40:18,736 INFO L87 Difference]: Start difference. First operand 374 states and 578 transitions. Second operand 6 states. [2018-07-25 13:40:19,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:40:19,391 INFO L93 Difference]: Finished difference Result 457 states and 711 transitions. [2018-07-25 13:40:19,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 13:40:19,392 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-07-25 13:40:19,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:40:19,396 INFO L225 Difference]: With dead ends: 457 [2018-07-25 13:40:19,396 INFO L226 Difference]: Without dead ends: 455 [2018-07-25 13:40:19,397 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 3015 GetRequests, 2993 SyntacticMatches, 14 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-25 13:40:19,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2018-07-25 13:40:19,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 415. [2018-07-25 13:40:19,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2018-07-25 13:40:19,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 652 transitions. [2018-07-25 13:40:19,473 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 652 transitions. Word has length 40 [2018-07-25 13:40:19,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:40:19,473 INFO L472 AbstractCegarLoop]: Abstraction has 415 states and 652 transitions. [2018-07-25 13:40:19,474 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 13:40:19,474 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 652 transitions. [2018-07-25 13:40:19,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-25 13:40:19,477 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:40:19,477 INFO L354 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:40:19,477 INFO L415 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:40:19,478 INFO L82 PathProgramCache]: Analyzing trace with hash 452423913, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:40:19,492 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:40:21,499 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:40:21,500 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-07-25 13:40:21,500 INFO L451 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-25 13:40:21,500 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-25 13:40:21,500 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-07-25 13:40:21,501 INFO L87 Difference]: Start difference. First operand 415 states and 652 transitions. Second operand 10 states. [2018-07-25 13:40:22,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:40:22,636 INFO L93 Difference]: Finished difference Result 487 states and 761 transitions. [2018-07-25 13:40:22,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-25 13:40:22,636 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2018-07-25 13:40:22,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:40:22,641 INFO L225 Difference]: With dead ends: 487 [2018-07-25 13:40:22,641 INFO L226 Difference]: Without dead ends: 485 [2018-07-25 13:40:22,643 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 12751 GetRequests, 12699 SyntacticMatches, 24 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=190, Invalid=680, Unknown=0, NotChecked=0, Total=870 [2018-07-25 13:40:22,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2018-07-25 13:40:22,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 415. [2018-07-25 13:40:22,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2018-07-25 13:40:22,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 652 transitions. [2018-07-25 13:40:22,765 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 652 transitions. Word has length 40 [2018-07-25 13:40:22,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:40:22,766 INFO L472 AbstractCegarLoop]: Abstraction has 415 states and 652 transitions. [2018-07-25 13:40:22,766 INFO L473 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-25 13:40:22,766 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 652 transitions. [2018-07-25 13:40:22,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-25 13:40:22,768 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:40:22,775 INFO L354 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:40:22,775 INFO L415 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:40:22,775 INFO L82 PathProgramCache]: Analyzing trace with hash -87864414, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:40:22,790 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:40:26,427 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:40:26,427 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-07-25 13:40:26,428 INFO L451 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-25 13:40:26,428 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-25 13:40:26,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2018-07-25 13:40:26,429 INFO L87 Difference]: Start difference. First operand 415 states and 652 transitions. Second operand 12 states. [2018-07-25 13:40:28,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:40:28,524 INFO L93 Difference]: Finished difference Result 709 states and 1129 transitions. [2018-07-25 13:40:28,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-25 13:40:28,528 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2018-07-25 13:40:28,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:40:28,533 INFO L225 Difference]: With dead ends: 709 [2018-07-25 13:40:28,534 INFO L226 Difference]: Without dead ends: 707 [2018-07-25 13:40:28,535 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 21524 GetRequests, 21458 SyntacticMatches, 26 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=396, Invalid=1326, Unknown=0, NotChecked=0, Total=1722 [2018-07-25 13:40:28,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-07-25 13:40:28,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 554. [2018-07-25 13:40:28,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-07-25 13:40:28,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 898 transitions. [2018-07-25 13:40:28,701 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 898 transitions. Word has length 42 [2018-07-25 13:40:28,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:40:28,702 INFO L472 AbstractCegarLoop]: Abstraction has 554 states and 898 transitions. [2018-07-25 13:40:28,702 INFO L473 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-25 13:40:28,702 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 898 transitions. [2018-07-25 13:40:28,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-07-25 13:40:28,704 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:40:28,704 INFO L354 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:40:28,705 INFO L415 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:40:28,705 INFO L82 PathProgramCache]: Analyzing trace with hash -2095690459, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:40:28,718 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:40:33,174 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:40:33,175 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-07-25 13:40:33,175 INFO L451 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-25 13:40:33,175 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-25 13:40:33,176 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=866, Unknown=0, NotChecked=0, Total=1056 [2018-07-25 13:40:33,176 INFO L87 Difference]: Start difference. First operand 554 states and 898 transitions. Second operand 13 states. [2018-07-25 13:40:34,121 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2018-07-25 13:40:36,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:40:36,348 INFO L93 Difference]: Finished difference Result 820 states and 1320 transitions. [2018-07-25 13:40:36,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-25 13:40:36,348 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2018-07-25 13:40:36,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:40:36,353 INFO L225 Difference]: With dead ends: 820 [2018-07-25 13:40:36,353 INFO L226 Difference]: Without dead ends: 818 [2018-07-25 13:40:36,355 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 24207 GetRequests, 24134 SyntacticMatches, 27 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=458, Invalid=1798, Unknown=0, NotChecked=0, Total=2256 [2018-07-25 13:40:36,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2018-07-25 13:40:36,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 643. [2018-07-25 13:40:36,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2018-07-25 13:40:36,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1051 transitions. [2018-07-25 13:40:36,564 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1051 transitions. Word has length 43 [2018-07-25 13:40:36,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:40:36,564 INFO L472 AbstractCegarLoop]: Abstraction has 643 states and 1051 transitions. [2018-07-25 13:40:36,565 INFO L473 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-25 13:40:36,565 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1051 transitions. [2018-07-25 13:40:36,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-07-25 13:40:36,567 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:40:36,567 INFO L354 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:40:36,567 INFO L415 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:40:36,567 INFO L82 PathProgramCache]: Analyzing trace with hash 383602892, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:40:36,583 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:41:39,797 WARN L169 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33 [2018-07-25 13:42:10,881 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:42:10,881 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-07-25 13:42:10,881 INFO L451 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-25 13:42:10,882 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-25 13:42:10,883 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=2085, Unknown=0, NotChecked=0, Total=2550 [2018-07-25 13:42:10,883 INFO L87 Difference]: Start difference. First operand 643 states and 1051 transitions. Second operand 12 states. [2018-07-25 13:42:11,792 WARN L169 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2018-07-25 13:42:11,974 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2018-07-25 13:42:14,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:42:14,326 INFO L93 Difference]: Finished difference Result 1045 states and 1705 transitions. [2018-07-25 13:42:14,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-25 13:42:14,326 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2018-07-25 13:42:14,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:42:14,331 INFO L225 Difference]: With dead ends: 1045 [2018-07-25 13:42:14,331 INFO L226 Difference]: Without dead ends: 1043 [2018-07-25 13:42:14,334 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 30560 GetRequests, 27080 SyntacticMatches, 3419 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159141 ImplicationChecksByTransitivity, 89.3s TimeCoverageRelationStatistics Valid=804, Invalid=3102, Unknown=0, NotChecked=0, Total=3906 [2018-07-25 13:42:14,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2018-07-25 13:42:14,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 827. [2018-07-25 13:42:14,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2018-07-25 13:42:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1373 transitions. [2018-07-25 13:42:14,602 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1373 transitions. Word has length 54 [2018-07-25 13:42:14,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:42:14,603 INFO L472 AbstractCegarLoop]: Abstraction has 827 states and 1373 transitions. [2018-07-25 13:42:14,603 INFO L473 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-25 13:42:14,603 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1373 transitions. [2018-07-25 13:42:14,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-07-25 13:42:14,605 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:42:14,606 INFO L354 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:42:14,606 INFO L415 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:42:14,606 INFO L82 PathProgramCache]: Analyzing trace with hash -365105861, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) [2018-07-25 13:42:14,616 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:42:53,468 WARN L169 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-07-25 13:43:32,766 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2018-07-25 13:43:43,245 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2018-07-25 13:44:07,035 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:44:07,036 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-07-25 13:44:07,037 INFO L451 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-25 13:44:07,037 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-25 13:44:07,038 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=588, Invalid=2834, Unknown=0, NotChecked=0, Total=3422 [2018-07-25 13:44:07,038 INFO L87 Difference]: Start difference. First operand 827 states and 1373 transitions. Second operand 13 states. [2018-07-25 13:44:07,183 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2018-07-25 13:44:07,982 WARN L169 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2018-07-25 13:44:08,951 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2018-07-25 13:44:10,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:44:10,168 INFO L93 Difference]: Finished difference Result 1032 states and 1687 transitions. [2018-07-25 13:44:10,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-25 13:44:10,168 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2018-07-25 13:44:10,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:44:10,173 INFO L225 Difference]: With dead ends: 1032 [2018-07-25 13:44:10,173 INFO L226 Difference]: Without dead ends: 1030 [2018-07-25 13:44:10,176 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 34796 GetRequests, 30910 SyntacticMatches, 3815 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209067 ImplicationChecksByTransitivity, 106.4s TimeCoverageRelationStatistics Valid=1005, Invalid=4251, Unknown=0, NotChecked=0, Total=5256 [2018-07-25 13:44:10,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2018-07-25 13:44:10,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 808. [2018-07-25 13:44:10,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2018-07-25 13:44:10,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1340 transitions. [2018-07-25 13:44:10,598 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1340 transitions. Word has length 55 [2018-07-25 13:44:10,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:44:10,598 INFO L472 AbstractCegarLoop]: Abstraction has 808 states and 1340 transitions. [2018-07-25 13:44:10,598 INFO L473 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-25 13:44:10,598 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1340 transitions. [2018-07-25 13:44:10,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-25 13:44:10,600 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:44:10,602 INFO L354 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:44:10,602 INFO L415 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:44:10,602 INFO L82 PathProgramCache]: Analyzing trace with hash -150304423, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:44:10,625 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:44:17,552 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2018-07-25 13:44:18,442 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:44:18,443 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-07-25 13:44:18,443 INFO L451 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-25 13:44:18,443 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-25 13:44:18,443 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=633, Unknown=0, NotChecked=0, Total=756 [2018-07-25 13:44:18,444 INFO L87 Difference]: Start difference. First operand 808 states and 1340 transitions. Second operand 12 states. [2018-07-25 13:44:19,030 WARN L169 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2018-07-25 13:44:19,945 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2018-07-25 13:44:24,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:44:24,911 INFO L93 Difference]: Finished difference Result 2329 states and 3817 transitions. [2018-07-25 13:44:24,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-07-25 13:44:24,912 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2018-07-25 13:44:24,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:44:24,923 INFO L225 Difference]: With dead ends: 2329 [2018-07-25 13:44:24,923 INFO L226 Difference]: Without dead ends: 2327 [2018-07-25 13:44:24,926 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 40730 GetRequests, 40646 SyntacticMatches, 33 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=528, Invalid=2228, Unknown=0, NotChecked=0, Total=2756 [2018-07-25 13:44:24,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2018-07-25 13:44:25,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 1242. [2018-07-25 13:44:25,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1242 states. [2018-07-25 13:44:25,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 2046 transitions. [2018-07-25 13:44:25,549 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 2046 transitions. Word has length 56 [2018-07-25 13:44:25,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:44:25,549 INFO L472 AbstractCegarLoop]: Abstraction has 1242 states and 2046 transitions. [2018-07-25 13:44:25,549 INFO L473 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-25 13:44:25,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 2046 transitions. [2018-07-25 13:44:25,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-25 13:44:25,552 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:44:25,552 INFO L354 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:44:25,552 INFO L415 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:44:25,552 INFO L82 PathProgramCache]: Analyzing trace with hash -547396441, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:44:25,569 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Received shutdown request... [2018-07-25 13:44:28,173 WARN L513 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:44:28,173 WARN L541 AbstractCegarLoop]: Verification canceled [2018-07-25 13:44:28,179 WARN L202 ceAbstractionStarter]: Timeout [2018-07-25 13:44:28,179 INFO L202 PluginConnector]: Adding new model s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 01:44:28 BoogieIcfgContainer [2018-07-25 13:44:28,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 13:44:28,180 INFO L168 Benchmark]: Toolchain (without parser) took 262266.97 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 375.9 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 247.0 MB). Peak memory consumption was 623.0 MB. Max. memory is 7.1 GB. [2018-07-25 13:44:28,181 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. [2018-07-25 13:44:28,181 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.78 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 13:44:28,182 INFO L168 Benchmark]: Boogie Preprocessor took 58.62 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 13:44:28,183 INFO L168 Benchmark]: RCFGBuilder took 2263.11 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-07-25 13:44:28,183 INFO L168 Benchmark]: TraceAbstraction took 259894.41 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 375.9 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Peak memory consumption was 538.4 MB. Max. memory is 7.1 GB. [2018-07-25 13:44:28,187 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 Procedure Inliner took 44.78 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 58.62 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 2263.11 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 259894.41 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 375.9 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Peak memory consumption was 538.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 634]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 634). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 3, while PredicateComparison was comparing new predicate (quantifier-free) to 39 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 128 locations, 1 error locations. TIMEOUT Result, 259.8s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 24.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 745 SDtfs, 14422 SDslu, 1335 SDs, 0 SdLazy, 4674 SolverSat, 3184 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 184080 GetRequests, 176348 SyntacticMatches, 7395 SemanticMatches, 337 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371703 ImplicationChecksByTransitivity, 210.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1242occurred in iteration=9, 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: 2.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 2256 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 230.5s 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/s3_clnt_1_Unsafe.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_13-44-28-199.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_clnt_1_Unsafe.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_13-44-28-199.csv Completed graceful shutdown