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/s3_clnt_1_Unsafe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:39:11,524 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:39:11,526 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:39:11,539 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:39:11,539 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:39:11,540 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:39:11,542 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:39:11,544 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:39:11,545 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:39:11,546 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:39:11,547 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 15:39:11,548 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 15:39:11,549 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 15:39:11,550 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 15:39:11,551 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 15:39:11,552 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 15:39:11,553 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 15:39:11,554 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 15:39:11,557 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 15:39:11,558 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 15:39:11,559 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 15:39:11,561 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 15:39:11,563 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 15:39:11,572 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf [2018-07-23 15:39:11,580 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:39:11,580 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:39:11,581 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:39:11,582 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 15:39:11,582 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:39:11,582 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:39:11,628 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:39:11,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:39:11,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:39:11,646 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:39:11,647 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:39:11,648 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/s3_clnt_1_Unsafe.bpl [2018-07-23 15:39:11,648 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/s3_clnt_1_Unsafe.bpl' [2018-07-23 15:39:11,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:39:11,729 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:39:11,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:39:11,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:39:11,730 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:39:11,765 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 23.07 03:39:11" (1/1) ... [2018-07-23 15:39:11,767 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 23.07 03:39:11" (1/1) ... [2018-07-23 15:39:11,781 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 23.07 03:39:11" (1/1) ... [2018-07-23 15:39:11,782 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 23.07 03:39:11" (1/1) ... [2018-07-23 15:39:11,800 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 23.07 03:39:11" (1/1) ... [2018-07-23 15:39:11,823 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 23.07 03:39:11" (1/1) ... [2018-07-23 15:39:11,826 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 23.07 03:39:11" (1/1) ... [2018-07-23 15:39:11,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:39:11,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:39:11,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:39:11,843 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:39:11,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-07-23 15:39:11,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2018-07-23 15:39:11,945 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2018-07-23 15:39:12,132 WARN L483 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-07-23 15:39:12,132 WARN L448 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-07-23 15:39:13,856 INFO L258 CfgBuilder]: Using library mode [2018-07-23 15:39:13,857 INFO L202 PluginConnector]: Adding new model s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:39:13 BoogieIcfgContainer [2018-07-23 15:39:13,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:39:13,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:39:13,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:39:13,867 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:39:13,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:39:11" (1/2) ... [2018-07-23 15:39:13,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d6aa41 and model type s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:39:13, skipping insertion in model container [2018-07-23 15:39:13,869 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 23.07 03:39:13" (2/2) ... [2018-07-23 15:39:13,873 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_1_Unsafe.bpl [2018-07-23 15:39:13,884 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:39:13,897 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 15:39:13,958 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:39:13,959 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:39:13,959 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:39:13,960 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 15:39:13,960 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:39:13,960 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:39:13,960 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:39:13,961 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:39:13,962 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:39:13,991 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2018-07-23 15:39:14,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-23 15:39:14,011 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:14,014 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 15:39:14,015 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0AssertViolationASSERT]=== [2018-07-23 15:39:14,026 INFO L82 PathProgramCache]: Analyzing trace with hash 879771708, now seen corresponding path program 1 times [2018-07-23 15:39:14,035 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:39:15,370 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:39:15,371 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 15:39:15,376 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:39:15,383 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:39:15,384 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 15:39:15,387 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 4 states. [2018-07-23 15:39:15,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:39:15,925 INFO L93 Difference]: Finished difference Result 199 states and 338 transitions. [2018-07-23 15:39:15,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 15:39:15,927 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-07-23 15:39:15,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:39:15,947 INFO L225 Difference]: With dead ends: 199 [2018-07-23 15:39:15,948 INFO L226 Difference]: Without dead ends: 185 [2018-07-23 15:39:15,952 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1824 GetRequests, 1807 SyntacticMatches, 13 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 15:39:15,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-07-23 15:39:16,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 179. [2018-07-23 15:39:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-07-23 15:39:16,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 270 transitions. [2018-07-23 15:39:16,042 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 270 transitions. Word has length 20 [2018-07-23 15:39:16,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:39:16,043 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 270 transitions. [2018-07-23 15:39:16,043 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:39:16,043 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 270 transitions. [2018-07-23 15:39:16,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-23 15:39:16,045 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:16,046 INFO L353 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] [2018-07-23 15:39:16,046 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0AssertViolationASSERT]=== [2018-07-23 15:39:16,046 INFO L82 PathProgramCache]: Analyzing trace with hash 761367187, now seen corresponding path program 1 times [2018-07-23 15:39:16,047 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:39:17,457 WARN L169 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2018-07-23 15:39:17,809 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-07-23 15:39:18,165 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-07-23 15:39:20,153 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:39:20,153 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-07-23 15:39:20,154 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 15:39:20,155 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 15:39:20,155 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-07-23 15:39:20,156 INFO L87 Difference]: Start difference. First operand 179 states and 270 transitions. Second operand 9 states. [2018-07-23 15:39:22,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:39:22,947 INFO L93 Difference]: Finished difference Result 665 states and 1057 transitions. [2018-07-23 15:39:22,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-23 15:39:22,947 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2018-07-23 15:39:22,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:39:22,955 INFO L225 Difference]: With dead ends: 665 [2018-07-23 15:39:22,955 INFO L226 Difference]: Without dead ends: 663 [2018-07-23 15:39:22,957 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 14673 GetRequests, 14621 SyntacticMatches, 24 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2018-07-23 15:39:22,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2018-07-23 15:39:23,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 374. [2018-07-23 15:39:23,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2018-07-23 15:39:23,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 578 transitions. [2018-07-23 15:39:23,050 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 578 transitions. Word has length 39 [2018-07-23 15:39:23,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:39:23,050 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 578 transitions. [2018-07-23 15:39:23,050 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 15:39:23,051 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 578 transitions. [2018-07-23 15:39:23,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-23 15:39:23,053 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:23,054 INFO L353 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] [2018-07-23 15:39:23,054 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0AssertViolationASSERT]=== [2018-07-23 15:39:23,054 INFO L82 PathProgramCache]: Analyzing trace with hash 2123039046, now seen corresponding path program 1 times [2018-07-23 15:39:23,054 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:39:23,737 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:39:23,737 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 15:39:23,737 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 15:39:23,738 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 15:39:23,738 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-23 15:39:23,738 INFO L87 Difference]: Start difference. First operand 374 states and 578 transitions. Second operand 6 states. [2018-07-23 15:39:24,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:39:24,324 INFO L93 Difference]: Finished difference Result 457 states and 711 transitions. [2018-07-23 15:39:24,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 15:39:24,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-07-23 15:39:24,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:39:24,328 INFO L225 Difference]: With dead ends: 457 [2018-07-23 15:39:24,328 INFO L226 Difference]: Without dead ends: 455 [2018-07-23 15:39:24,329 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3015 GetRequests, 2993 SyntacticMatches, 14 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-23 15:39:24,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2018-07-23 15:39:24,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 415. [2018-07-23 15:39:24,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2018-07-23 15:39:24,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 652 transitions. [2018-07-23 15:39:24,405 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 652 transitions. Word has length 40 [2018-07-23 15:39:24,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:39:24,405 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 652 transitions. [2018-07-23 15:39:24,405 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 15:39:24,406 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 652 transitions. [2018-07-23 15:39:24,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-23 15:39:24,407 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:24,408 INFO L353 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] [2018-07-23 15:39:24,408 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0AssertViolationASSERT]=== [2018-07-23 15:39:24,408 INFO L82 PathProgramCache]: Analyzing trace with hash 808058785, now seen corresponding path program 1 times [2018-07-23 15:39:24,408 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:39:26,210 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:39:26,210 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-07-23 15:39:26,210 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 15:39:26,210 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 15:39:26,211 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-07-23 15:39:26,211 INFO L87 Difference]: Start difference. First operand 415 states and 652 transitions. Second operand 10 states. [2018-07-23 15:39:26,369 WARN L169 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2018-07-23 15:39:27,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:39:27,384 INFO L93 Difference]: Finished difference Result 487 states and 761 transitions. [2018-07-23 15:39:27,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-23 15:39:27,385 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2018-07-23 15:39:27,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:39:27,389 INFO L225 Difference]: With dead ends: 487 [2018-07-23 15:39:27,389 INFO L226 Difference]: Without dead ends: 485 [2018-07-23 15:39:27,390 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 12751 GetRequests, 12699 SyntacticMatches, 24 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=190, Invalid=680, Unknown=0, NotChecked=0, Total=870 [2018-07-23 15:39:27,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2018-07-23 15:39:27,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 415. [2018-07-23 15:39:27,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2018-07-23 15:39:27,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 652 transitions. [2018-07-23 15:39:27,517 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 652 transitions. Word has length 40 [2018-07-23 15:39:27,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:39:27,517 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 652 transitions. [2018-07-23 15:39:27,518 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 15:39:27,518 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 652 transitions. [2018-07-23 15:39:27,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-23 15:39:27,519 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:27,520 INFO L353 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] [2018-07-23 15:39:27,520 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0AssertViolationASSERT]=== [2018-07-23 15:39:27,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1942280527, now seen corresponding path program 1 times [2018-07-23 15:39:27,525 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:39:31,190 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:39:31,190 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-07-23 15:39:31,190 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 15:39:31,191 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 15:39:31,191 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2018-07-23 15:39:31,192 INFO L87 Difference]: Start difference. First operand 415 states and 652 transitions. Second operand 12 states. [2018-07-23 15:39:33,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:39:33,327 INFO L93 Difference]: Finished difference Result 709 states and 1129 transitions. [2018-07-23 15:39:33,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 15:39:33,327 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2018-07-23 15:39:33,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:39:33,332 INFO L225 Difference]: With dead ends: 709 [2018-07-23 15:39:33,332 INFO L226 Difference]: Without dead ends: 707 [2018-07-23 15:39:33,334 INFO L573 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 [2018-07-23 15:39:33,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-07-23 15:39:33,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 554. [2018-07-23 15:39:33,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-07-23 15:39:33,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 898 transitions. [2018-07-23 15:39:33,490 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 898 transitions. Word has length 42 [2018-07-23 15:39:33,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:39:33,491 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 898 transitions. [2018-07-23 15:39:33,491 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 15:39:33,491 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 898 transitions. [2018-07-23 15:39:33,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-07-23 15:39:33,493 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:33,493 INFO L353 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] [2018-07-23 15:39:33,493 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0AssertViolationASSERT]=== [2018-07-23 15:39:33,493 INFO L82 PathProgramCache]: Analyzing trace with hash 591109794, now seen corresponding path program 1 times [2018-07-23 15:39:33,494 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:39:38,057 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:39:38,057 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-07-23 15:39:38,057 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 15:39:38,058 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 15:39:38,058 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=866, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 15:39:38,059 INFO L87 Difference]: Start difference. First operand 554 states and 898 transitions. Second operand 13 states. [2018-07-23 15:39:38,974 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2018-07-23 15:39:41,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:39:41,221 INFO L93 Difference]: Finished difference Result 820 states and 1320 transitions. [2018-07-23 15:39:41,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-23 15:39:41,222 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2018-07-23 15:39:41,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:39:41,228 INFO L225 Difference]: With dead ends: 820 [2018-07-23 15:39:41,228 INFO L226 Difference]: Without dead ends: 818 [2018-07-23 15:39:41,230 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 24207 GetRequests, 24134 SyntacticMatches, 27 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=458, Invalid=1798, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 15:39:41,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2018-07-23 15:39:41,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 643. [2018-07-23 15:39:41,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2018-07-23 15:39:41,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1051 transitions. [2018-07-23 15:39:41,415 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1051 transitions. Word has length 43 [2018-07-23 15:39:41,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:39:41,416 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 1051 transitions. [2018-07-23 15:39:41,416 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-23 15:39:41,416 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1051 transitions. [2018-07-23 15:39:41,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-07-23 15:39:41,418 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:39:41,419 INFO L353 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] [2018-07-23 15:39:41,419 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0AssertViolationASSERT]=== [2018-07-23 15:39:41,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1237301481, now seen corresponding path program 1 times [2018-07-23 15:39:41,419 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:40:45,648 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33 [2018-07-23 15:41:14,498 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:41:14,499 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-07-23 15:41:14,499 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 15:41:14,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 15:41:14,500 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=2085, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 15:41:14,501 INFO L87 Difference]: Start difference. First operand 643 states and 1051 transitions. Second operand 12 states. [2018-07-23 15:41:15,297 WARN L169 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2018-07-23 15:41:15,461 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2018-07-23 15:41:17,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:41:17,799 INFO L93 Difference]: Finished difference Result 1045 states and 1705 transitions. [2018-07-23 15:41:17,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 15:41:17,799 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2018-07-23 15:41:17,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:41:17,805 INFO L225 Difference]: With dead ends: 1045 [2018-07-23 15:41:17,805 INFO L226 Difference]: Without dead ends: 1043 [2018-07-23 15:41:17,807 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 30560 GetRequests, 27080 SyntacticMatches, 3419 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159141 ImplicationChecksByTransitivity, 88.2s TimeCoverageRelationStatistics Valid=804, Invalid=3102, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 15:41:17,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2018-07-23 15:41:18,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 827. [2018-07-23 15:41:18,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2018-07-23 15:41:18,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1373 transitions. [2018-07-23 15:41:18,085 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1373 transitions. Word has length 54 [2018-07-23 15:41:18,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:41:18,085 INFO L471 AbstractCegarLoop]: Abstraction has 827 states and 1373 transitions. [2018-07-23 15:41:18,086 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 15:41:18,086 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1373 transitions. [2018-07-23 15:41:18,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-07-23 15:41:18,089 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:41:18,089 INFO L353 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] [2018-07-23 15:41:18,089 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0AssertViolationASSERT]=== [2018-07-23 15:41:18,090 INFO L82 PathProgramCache]: Analyzing trace with hash 373904234, now seen corresponding path program 1 times [2018-07-23 15:41:18,090 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:41:57,753 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-07-23 15:42:48,486 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2018-07-23 15:43:12,865 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:43:12,866 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-07-23 15:43:12,866 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 15:43:12,866 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 15:43:12,867 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=588, Invalid=2834, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 15:43:12,868 INFO L87 Difference]: Start difference. First operand 827 states and 1373 transitions. Second operand 13 states. [2018-07-23 15:43:13,029 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2018-07-23 15:43:13,831 WARN L169 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2018-07-23 15:43:14,942 WARN L169 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2018-07-23 15:43:16,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:43:16,180 INFO L93 Difference]: Finished difference Result 1032 states and 1687 transitions. [2018-07-23 15:43:16,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-23 15:43:16,181 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2018-07-23 15:43:16,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:43:16,186 INFO L225 Difference]: With dead ends: 1032 [2018-07-23 15:43:16,187 INFO L226 Difference]: Without dead ends: 1030 [2018-07-23 15:43:16,189 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 34796 GetRequests, 30910 SyntacticMatches, 3815 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209067 ImplicationChecksByTransitivity, 108.7s TimeCoverageRelationStatistics Valid=1005, Invalid=4251, Unknown=0, NotChecked=0, Total=5256 [2018-07-23 15:43:16,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2018-07-23 15:43:16,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 808. [2018-07-23 15:43:16,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2018-07-23 15:43:16,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1340 transitions. [2018-07-23 15:43:16,469 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1340 transitions. Word has length 55 [2018-07-23 15:43:16,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:43:16,469 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1340 transitions. [2018-07-23 15:43:16,470 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-23 15:43:16,470 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1340 transitions. [2018-07-23 15:43:16,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-23 15:43:16,472 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:43:16,472 INFO L353 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] [2018-07-23 15:43:16,472 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0AssertViolationASSERT]=== [2018-07-23 15:43:16,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1139580623, now seen corresponding path program 1 times [2018-07-23 15:43:16,473 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:43:23,412 WARN L169 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2018-07-23 15:43:24,265 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:43:24,266 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-07-23 15:43:24,266 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 15:43:24,266 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 15:43:24,267 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=633, Unknown=0, NotChecked=0, Total=756 [2018-07-23 15:43:24,267 INFO L87 Difference]: Start difference. First operand 808 states and 1340 transitions. Second operand 12 states. [2018-07-23 15:43:24,717 WARN L169 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2018-07-23 15:43:25,195 WARN L169 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-07-23 15:43:25,754 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2018-07-23 15:43:30,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:43:30,747 INFO L93 Difference]: Finished difference Result 2329 states and 3817 transitions. [2018-07-23 15:43:30,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-07-23 15:43:30,747 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2018-07-23 15:43:30,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:43:30,759 INFO L225 Difference]: With dead ends: 2329 [2018-07-23 15:43:30,759 INFO L226 Difference]: Without dead ends: 2327 [2018-07-23 15:43:30,762 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 40730 GetRequests, 40646 SyntacticMatches, 33 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=528, Invalid=2228, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 15:43:30,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2018-07-23 15:43:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 1242. [2018-07-23 15:43:31,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1242 states. [2018-07-23 15:43:31,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 2046 transitions. [2018-07-23 15:43:31,572 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 2046 transitions. Word has length 56 [2018-07-23 15:43:31,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:43:31,572 INFO L471 AbstractCegarLoop]: Abstraction has 1242 states and 2046 transitions. [2018-07-23 15:43:31,572 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 15:43:31,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 2046 transitions. [2018-07-23 15:43:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 15:43:31,575 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:43:31,575 INFO L353 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] [2018-07-23 15:43:31,575 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0AssertViolationASSERT]=== [2018-07-23 15:43:31,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1221745323, now seen corresponding path program 1 times [2018-07-23 15:43:31,576 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Received shutdown request... [2018-07-23 15:43:32,959 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 15:43:32,964 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 15:43:32,964 INFO L202 PluginConnector]: Adding new model s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 03:43:32 BoogieIcfgContainer [2018-07-23 15:43:32,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 15:43:32,965 INFO L168 Benchmark]: Toolchain (without parser) took 261239.15 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 384.8 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 125.8 MB). Peak memory consumption was 510.6 MB. Max. memory is 7.1 GB. [2018-07-23 15:43:32,967 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 15:43:32,967 INFO L168 Benchmark]: Boogie Preprocessor took 112.30 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 15:43:32,968 INFO L168 Benchmark]: RCFGBuilder took 2015.86 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. [2018-07-23 15:43:32,969 INFO L168 Benchmark]: TraceAbstraction took 259104.78 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 384.8 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 41.2 MB). Peak memory consumption was 426.0 MB. Max. memory is 7.1 GB. [2018-07-23 15:43:32,973 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 112.30 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 2015.86 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 259104.78 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 384.8 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 41.2 MB). Peak memory consumption was 426.0 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 33 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 128 locations, 1 error locations. TIMEOUT Result, 259.0s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 23.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 745 SDtfs, 14422 SDslu, 1335 SDs, 0 SdLazy, 4674 SolverSat, 3184 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 184080 GetRequests, 176348 SyntacticMatches, 7395 SemanticMatches, 337 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371703 ImplicationChecksByTransitivity, 211.5s 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: 231.7s 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.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_15-43-32-984.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_clnt_1_Unsafe.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_15-43-32-984.csv Completed graceful shutdown