java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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-ff8eab6 [2018-09-26 08:31:20,433 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:31:20,436 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:31:20,449 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:31:20,450 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:31:20,451 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:31:20,452 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:31:20,453 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:31:20,456 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:31:20,457 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:31:20,458 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 08:31:20,458 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 08:31:20,459 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 08:31:20,460 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 08:31:20,461 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 08:31:20,462 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 08:31:20,462 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 08:31:20,464 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 08:31:20,466 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 08:31:20,468 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 08:31:20,469 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 08:31:20,470 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 08:31:20,473 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 08:31:20,473 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 08:31:20,473 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 08:31:20,474 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 08:31:20,475 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 08:31:20,476 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 08:31:20,477 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 08:31:20,478 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 08:31:20,478 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 08:31:20,479 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-26 08:31:20,481 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-09-26 08:31:20,489 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:31:20,490 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:31:20,491 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:31:20,491 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 08:31:20,491 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 08:31:20,492 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:31:20,492 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:31:20,535 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:31:20,548 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:31:20,552 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:31:20,553 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:31:20,554 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:31:20,555 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/s3_clnt_1_Unsafe.bpl [2018-09-26 08:31:20,555 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/s3_clnt_1_Unsafe.bpl' [2018-09-26 08:31:20,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:31:20,643 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:31:20,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:31:20,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:31:20,644 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:31:20,665 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 26.09 08:31:20" (1/1) ... [2018-09-26 08:31:20,687 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 26.09 08:31:20" (1/1) ... [2018-09-26 08:31:20,698 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-26 08:31:20,698 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-26 08:31:20,699 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-26 08:31:20,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:31:20,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:31:20,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:31:20,702 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:31:20,714 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 26.09 08:31:20" (1/1) ... [2018-09-26 08:31:20,714 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 26.09 08:31:20" (1/1) ... [2018-09-26 08:31:20,723 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 26.09 08:31:20" (1/1) ... [2018-09-26 08:31:20,724 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 26.09 08:31:20" (1/1) ... [2018-09-26 08:31:20,744 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 26.09 08:31:20" (1/1) ... [2018-09-26 08:31:20,759 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 26.09 08:31:20" (1/1) ... [2018-09-26 08:31:20,762 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 26.09 08:31:20" (1/1) ... [2018-09-26 08:31:20,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:31:20,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:31:20,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:31:20,768 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:31:20,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:31:20" (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 [2018-09-26 08:31:20,848 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2018-09-26 08:31:20,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2018-09-26 08:31:21,001 WARN L668 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-09-26 08:31:21,001 WARN L633 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-09-26 08:31:22,994 INFO L343 CfgBuilder]: Using library mode [2018-09-26 08:31:22,995 INFO L202 PluginConnector]: Adding new model s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:31:22 BoogieIcfgContainer [2018-09-26 08:31:22,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:31:22,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:31:22,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:31:23,004 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:31:23,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:31:20" (1/2) ... [2018-09-26 08:31:23,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42141df8 and model type s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:31:23, skipping insertion in model container [2018-09-26 08:31:23,006 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 26.09 08:31:22" (2/2) ... [2018-09-26 08:31:23,008 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_1_Unsafe.bpl [2018-09-26 08:31:23,020 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:31:23,038 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:31:23,097 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:31:23,098 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:31:23,098 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:31:23,098 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 08:31:23,098 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:31:23,099 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:31:23,099 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:31:23,099 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:31:23,101 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:31:23,130 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2018-09-26 08:31:23,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-26 08:31:23,154 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:31:23,158 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 08:31:23,159 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:31:23,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:31:23,167 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 [2018-09-26 08:31:23,188 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:31:24,373 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:31:24,373 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 08:31:24,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:31:24,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:31:24,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-26 08:31:24,390 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 4 states. [2018-09-26 08:31:25,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:31:25,133 INFO L93 Difference]: Finished difference Result 199 states and 338 transitions. [2018-09-26 08:31:25,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:31:25,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-09-26 08:31:25,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:31:25,152 INFO L225 Difference]: With dead ends: 199 [2018-09-26 08:31:25,153 INFO L226 Difference]: Without dead ends: 185 [2018-09-26 08:31:25,157 INFO L605 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 [2018-09-26 08:31:25,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-09-26 08:31:25,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 179. [2018-09-26 08:31:25,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-09-26 08:31:25,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 270 transitions. [2018-09-26 08:31:25,225 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 270 transitions. Word has length 20 [2018-09-26 08:31:25,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:31:25,226 INFO L480 AbstractCegarLoop]: Abstraction has 179 states and 270 transitions. [2018-09-26 08:31:25,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:31:25,226 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 270 transitions. [2018-09-26 08:31:25,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-26 08:31:25,229 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:31:25,229 INFO L375 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] [2018-09-26 08:31:25,229 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:31:25,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:31:25,230 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 [2018-09-26 08:31:25,245 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:31:26,569 WARN L178 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2018-09-26 08:31:26,938 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-09-26 08:31:27,349 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-26 08:31:29,428 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:31:29,429 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-26 08:31:29,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-26 08:31:29,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-26 08:31:29,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-09-26 08:31:29,432 INFO L87 Difference]: Start difference. First operand 179 states and 270 transitions. Second operand 9 states. [2018-09-26 08:31:32,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:31:32,349 INFO L93 Difference]: Finished difference Result 665 states and 1057 transitions. [2018-09-26 08:31:32,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-26 08:31:32,350 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2018-09-26 08:31:32,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:31:32,357 INFO L225 Difference]: With dead ends: 665 [2018-09-26 08:31:32,357 INFO L226 Difference]: Without dead ends: 663 [2018-09-26 08:31:32,360 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14673 GetRequests, 14621 SyntacticMatches, 24 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2018-09-26 08:31:32,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2018-09-26 08:31:32,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 374. [2018-09-26 08:31:32,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2018-09-26 08:31:32,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 578 transitions. [2018-09-26 08:31:32,456 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 578 transitions. Word has length 39 [2018-09-26 08:31:32,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:31:32,456 INFO L480 AbstractCegarLoop]: Abstraction has 374 states and 578 transitions. [2018-09-26 08:31:32,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-26 08:31:32,457 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 578 transitions. [2018-09-26 08:31:32,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-26 08:31:32,460 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:31:32,460 INFO L375 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] [2018-09-26 08:31:32,460 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:31:32,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:31:32,461 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 [2018-09-26 08:31:32,477 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:31:33,224 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:31:33,225 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-26 08:31:33,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 08:31:33,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 08:31:33,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-26 08:31:33,226 INFO L87 Difference]: Start difference. First operand 374 states and 578 transitions. Second operand 6 states. [2018-09-26 08:31:33,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:31:33,783 INFO L93 Difference]: Finished difference Result 457 states and 711 transitions. [2018-09-26 08:31:33,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 08:31:33,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-09-26 08:31:33,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:31:33,789 INFO L225 Difference]: With dead ends: 457 [2018-09-26 08:31:33,790 INFO L226 Difference]: Without dead ends: 455 [2018-09-26 08:31:33,790 INFO L605 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 [2018-09-26 08:31:33,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2018-09-26 08:31:33,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 415. [2018-09-26 08:31:33,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2018-09-26 08:31:33,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 652 transitions. [2018-09-26 08:31:33,863 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 652 transitions. Word has length 40 [2018-09-26 08:31:33,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:31:33,864 INFO L480 AbstractCegarLoop]: Abstraction has 415 states and 652 transitions. [2018-09-26 08:31:33,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 08:31:33,864 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 652 transitions. [2018-09-26 08:31:33,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-26 08:31:33,867 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:31:33,867 INFO L375 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] [2018-09-26 08:31:33,867 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:31:33,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:31:33,868 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 [2018-09-26 08:31:33,881 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:31:35,767 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:31:35,768 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-26 08:31:35,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-26 08:31:35,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-26 08:31:35,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-09-26 08:31:35,769 INFO L87 Difference]: Start difference. First operand 415 states and 652 transitions. Second operand 10 states. [2018-09-26 08:31:37,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:31:37,072 INFO L93 Difference]: Finished difference Result 487 states and 761 transitions. [2018-09-26 08:31:37,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-26 08:31:37,072 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2018-09-26 08:31:37,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:31:37,076 INFO L225 Difference]: With dead ends: 487 [2018-09-26 08:31:37,076 INFO L226 Difference]: Without dead ends: 485 [2018-09-26 08:31:37,077 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12751 GetRequests, 12699 SyntacticMatches, 24 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=190, Invalid=680, Unknown=0, NotChecked=0, Total=870 [2018-09-26 08:31:37,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2018-09-26 08:31:37,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 415. [2018-09-26 08:31:37,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2018-09-26 08:31:37,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 652 transitions. [2018-09-26 08:31:37,197 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 652 transitions. Word has length 40 [2018-09-26 08:31:37,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:31:37,197 INFO L480 AbstractCegarLoop]: Abstraction has 415 states and 652 transitions. [2018-09-26 08:31:37,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-26 08:31:37,197 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 652 transitions. [2018-09-26 08:31:37,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-26 08:31:37,199 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:31:37,200 INFO L375 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] [2018-09-26 08:31:37,200 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:31:37,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:31:37,200 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 [2018-09-26 08:31:37,217 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:31:40,742 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:31:40,742 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-26 08:31:40,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-26 08:31:40,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-26 08:31:40,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2018-09-26 08:31:40,744 INFO L87 Difference]: Start difference. First operand 415 states and 652 transitions. Second operand 12 states. [2018-09-26 08:31:43,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:31:43,130 INFO L93 Difference]: Finished difference Result 709 states and 1129 transitions. [2018-09-26 08:31:43,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-26 08:31:43,131 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2018-09-26 08:31:43,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:31:43,137 INFO L225 Difference]: With dead ends: 709 [2018-09-26 08:31:43,137 INFO L226 Difference]: Without dead ends: 707 [2018-09-26 08:31:43,139 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21524 GetRequests, 21458 SyntacticMatches, 26 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=396, Invalid=1326, Unknown=0, NotChecked=0, Total=1722 [2018-09-26 08:31:43,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-09-26 08:31:43,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 554. [2018-09-26 08:31:43,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2018-09-26 08:31:43,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 898 transitions. [2018-09-26 08:31:43,295 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 898 transitions. Word has length 42 [2018-09-26 08:31:43,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:31:43,296 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 898 transitions. [2018-09-26 08:31:43,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-26 08:31:43,296 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 898 transitions. [2018-09-26 08:31:43,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-26 08:31:43,298 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:31:43,298 INFO L375 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] [2018-09-26 08:31:43,298 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:31:43,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:31:43,299 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 [2018-09-26 08:31:43,310 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:31:47,755 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:31:47,755 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-26 08:31:47,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-26 08:31:47,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-26 08:31:47,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=866, Unknown=0, NotChecked=0, Total=1056 [2018-09-26 08:31:47,757 INFO L87 Difference]: Start difference. First operand 554 states and 898 transitions. Second operand 13 states. [2018-09-26 08:31:48,780 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2018-09-26 08:31:51,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:31:51,181 INFO L93 Difference]: Finished difference Result 820 states and 1320 transitions. [2018-09-26 08:31:51,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-26 08:31:51,182 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2018-09-26 08:31:51,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:31:51,187 INFO L225 Difference]: With dead ends: 820 [2018-09-26 08:31:51,188 INFO L226 Difference]: Without dead ends: 818 [2018-09-26 08:31:51,190 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24207 GetRequests, 24134 SyntacticMatches, 27 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=458, Invalid=1798, Unknown=0, NotChecked=0, Total=2256 [2018-09-26 08:31:51,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2018-09-26 08:31:51,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 643. [2018-09-26 08:31:51,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2018-09-26 08:31:51,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1051 transitions. [2018-09-26 08:31:51,434 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1051 transitions. Word has length 43 [2018-09-26 08:31:51,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:31:51,435 INFO L480 AbstractCegarLoop]: Abstraction has 643 states and 1051 transitions. [2018-09-26 08:31:51,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-26 08:31:51,435 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1051 transitions. [2018-09-26 08:31:51,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-26 08:31:51,439 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:31:51,439 INFO L375 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] [2018-09-26 08:31:51,439 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:31:51,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:31:51,441 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 [2018-09-26 08:31:51,455 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:32:54,149 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33 [2018-09-26 08:33:22,198 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:33:22,198 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-26 08:33:22,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-26 08:33:22,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-26 08:33:22,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=2085, Unknown=0, NotChecked=0, Total=2550 [2018-09-26 08:33:22,200 INFO L87 Difference]: Start difference. First operand 643 states and 1051 transitions. Second operand 12 states. [2018-09-26 08:33:23,448 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2018-09-26 08:33:23,619 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2018-09-26 08:33:25,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:33:25,996 INFO L93 Difference]: Finished difference Result 1045 states and 1705 transitions. [2018-09-26 08:33:25,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-26 08:33:25,997 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2018-09-26 08:33:25,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:33:26,003 INFO L225 Difference]: With dead ends: 1045 [2018-09-26 08:33:26,003 INFO L226 Difference]: Without dead ends: 1043 [2018-09-26 08:33:26,005 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30560 GetRequests, 27080 SyntacticMatches, 3419 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159141 ImplicationChecksByTransitivity, 85.9s TimeCoverageRelationStatistics Valid=804, Invalid=3102, Unknown=0, NotChecked=0, Total=3906 [2018-09-26 08:33:26,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2018-09-26 08:33:26,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 827. [2018-09-26 08:33:26,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2018-09-26 08:33:26,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1373 transitions. [2018-09-26 08:33:26,271 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1373 transitions. Word has length 54 [2018-09-26 08:33:26,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:33:26,272 INFO L480 AbstractCegarLoop]: Abstraction has 827 states and 1373 transitions. [2018-09-26 08:33:26,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-26 08:33:26,272 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1373 transitions. [2018-09-26 08:33:26,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-26 08:33:26,274 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:33:26,274 INFO L375 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] [2018-09-26 08:33:26,274 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:33:26,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:33:26,275 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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:33:26,288 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:34:05,481 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-26 08:34:44,599 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2018-09-26 08:34:55,091 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2018-09-26 08:35:18,909 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:35:18,909 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-26 08:35:18,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-26 08:35:18,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-26 08:35:18,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=588, Invalid=2834, Unknown=0, NotChecked=0, Total=3422 [2018-09-26 08:35:18,912 INFO L87 Difference]: Start difference. First operand 827 states and 1373 transitions. Second operand 13 states. [2018-09-26 08:35:19,060 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2018-09-26 08:35:19,858 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2018-09-26 08:35:22,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:35:22,064 INFO L93 Difference]: Finished difference Result 1032 states and 1687 transitions. [2018-09-26 08:35:22,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-26 08:35:22,065 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2018-09-26 08:35:22,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:35:22,070 INFO L225 Difference]: With dead ends: 1032 [2018-09-26 08:35:22,070 INFO L226 Difference]: Without dead ends: 1030 [2018-09-26 08:35:22,073 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34796 GetRequests, 30910 SyntacticMatches, 3815 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209067 ImplicationChecksByTransitivity, 106.7s TimeCoverageRelationStatistics Valid=1005, Invalid=4251, Unknown=0, NotChecked=0, Total=5256 [2018-09-26 08:35:22,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2018-09-26 08:35:22,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 808. [2018-09-26 08:35:22,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2018-09-26 08:35:22,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1340 transitions. [2018-09-26 08:35:22,432 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1340 transitions. Word has length 55 [2018-09-26 08:35:22,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:35:22,433 INFO L480 AbstractCegarLoop]: Abstraction has 808 states and 1340 transitions. [2018-09-26 08:35:22,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-26 08:35:22,433 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1340 transitions. [2018-09-26 08:35:22,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-26 08:35:22,435 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:35:22,435 INFO L375 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] [2018-09-26 08:35:22,436 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:35:22,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:35:22,436 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) [2018-09-26 08:35:22,450 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:35:29,255 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2018-09-26 08:35:30,121 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:35:30,122 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-26 08:35:30,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-26 08:35:30,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-26 08:35:30,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=633, Unknown=0, NotChecked=0, Total=756 [2018-09-26 08:35:30,123 INFO L87 Difference]: Start difference. First operand 808 states and 1340 transitions. Second operand 12 states. [2018-09-26 08:35:30,709 WARN L178 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2018-09-26 08:35:31,587 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2018-09-26 08:35:32,466 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2018-09-26 08:35:36,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:35:36,556 INFO L93 Difference]: Finished difference Result 2329 states and 3817 transitions. [2018-09-26 08:35:36,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-09-26 08:35:36,556 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2018-09-26 08:35:36,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:35:36,569 INFO L225 Difference]: With dead ends: 2329 [2018-09-26 08:35:36,569 INFO L226 Difference]: Without dead ends: 2327 [2018-09-26 08:35:36,572 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40730 GetRequests, 40646 SyntacticMatches, 33 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=528, Invalid=2228, Unknown=0, NotChecked=0, Total=2756 [2018-09-26 08:35:36,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2018-09-26 08:35:37,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 1242. [2018-09-26 08:35:37,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1242 states. [2018-09-26 08:35:37,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 2046 transitions. [2018-09-26 08:35:37,131 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 2046 transitions. Word has length 56 [2018-09-26 08:35:37,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:35:37,132 INFO L480 AbstractCegarLoop]: Abstraction has 1242 states and 2046 transitions. [2018-09-26 08:35:37,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-26 08:35:37,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 2046 transitions. [2018-09-26 08:35:37,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-26 08:35:37,134 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:35:37,135 INFO L375 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] [2018-09-26 08:35:37,135 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:35:37,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:35:37,135 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 [2018-09-26 08:35:37,144 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Received shutdown request... [2018-09-26 08:35:42,237 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:35:42,238 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-26 08:35:42,243 WARN L206 ceAbstractionStarter]: Timeout [2018-09-26 08:35:42,243 INFO L202 PluginConnector]: Adding new model s3_clnt_1_Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:35:42 BoogieIcfgContainer [2018-09-26 08:35:42,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:35:42,244 INFO L168 Benchmark]: Toolchain (without parser) took 261604.71 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 276.3 MB). Free memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: -135.0 MB). Peak memory consumption was 141.3 MB. Max. memory is 7.1 GB. [2018-09-26 08:35:42,245 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 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. [2018-09-26 08:35:42,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.29 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. [2018-09-26 08:35:42,246 INFO L168 Benchmark]: Boogie Preprocessor took 65.22 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. [2018-09-26 08:35:42,247 INFO L168 Benchmark]: RCFGBuilder took 2229.06 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. [2018-09-26 08:35:42,248 INFO L168 Benchmark]: TraceAbstraction took 259245.75 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 276.3 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -219.6 MB). Peak memory consumption was 56.7 MB. Max. memory is 7.1 GB. [2018-09-26 08:35:42,251 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 0.17 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 57.29 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 65.22 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 2229.06 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 259245.75 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 276.3 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -219.6 MB). Peak memory consumption was 56.7 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, 259.1s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 24.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 745 SDtfs, 14422 SDslu, 1335 SDs, 0 SdLazy, 4674 SolverSat, 3184 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 184080 GetRequests, 176348 SyntacticMatches, 7395 SemanticMatches, 337 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371703 ImplicationChecksByTransitivity, 207.1s 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: 1.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 2256 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 226.7s 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-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_08-35-42-263.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-0-2018-09-26_08-35-42-263.csv Completed graceful shutdown