/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:59:18,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:59:18,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:59:18,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 18:59:18,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:59:18,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:59:18,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:59:18,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:59:18,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:59:18,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:59:18,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:59:18,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:59:18,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:59:18,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:59:18,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:59:18,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:59:18,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:59:18,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:59:18,729 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:59:18,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:59:18,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:59:18,732 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:59:18,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:59:18,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:59:18,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:59:18,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:59:18,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:59:18,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:59:18,735 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:59:18,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:59:18,735 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:59:18,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:59:18,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:59:18,736 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:59:18,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:59:18,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:59:18,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:59:18,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:59:18,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:59:18,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:59:18,737 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:59:19,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:59:19,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:59:19,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:59:19,053 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:59:19,054 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:59:19,055 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-08-22 18:59:19,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c01447bd0/1eea9135853247a48ec657e90560a4cb/FLAG83a5555a0 [2020-08-22 18:59:19,685 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:59:19,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-08-22 18:59:19,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c01447bd0/1eea9135853247a48ec657e90560a4cb/FLAG83a5555a0 [2020-08-22 18:59:19,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c01447bd0/1eea9135853247a48ec657e90560a4cb [2020-08-22 18:59:19,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:59:19,965 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:59:19,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:59:19,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:59:19,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:59:19,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:59:19" (1/1) ... [2020-08-22 18:59:19,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378191d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:19, skipping insertion in model container [2020-08-22 18:59:19,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:59:19" (1/1) ... [2020-08-22 18:59:19,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:59:20,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:59:20,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:59:20,270 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:59:20,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:59:20,466 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:59:20,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:20 WrapperNode [2020-08-22 18:59:20,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:59:20,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:59:20,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:59:20,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:59:20,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:20" (1/1) ... [2020-08-22 18:59:20,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:20" (1/1) ... [2020-08-22 18:59:20,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:20" (1/1) ... [2020-08-22 18:59:20,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:20" (1/1) ... [2020-08-22 18:59:20,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:20" (1/1) ... [2020-08-22 18:59:20,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:20" (1/1) ... [2020-08-22 18:59:20,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:20" (1/1) ... [2020-08-22 18:59:20,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:59:20,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:59:20,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:59:20,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:59:20,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:20" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:59:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:59:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:59:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-08-22 18:59:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:59:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:59:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-08-22 18:59:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:59:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-08-22 18:59:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-08-22 18:59:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:59:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:59:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:59:20,783 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-08-22 18:59:21,435 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-08-22 18:59:21,436 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-08-22 18:59:21,460 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:59:21,461 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 18:59:21,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:59:21 BoogieIcfgContainer [2020-08-22 18:59:21,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:59:21,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:59:21,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:59:21,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:59:21,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:59:19" (1/3) ... [2020-08-22 18:59:21,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b0e3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:59:21, skipping insertion in model container [2020-08-22 18:59:21,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:59:20" (2/3) ... [2020-08-22 18:59:21,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b0e3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:59:21, skipping insertion in model container [2020-08-22 18:59:21,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:59:21" (3/3) ... [2020-08-22 18:59:21,478 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2020-08-22 18:59:21,489 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:59:21,499 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:59:21,512 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:59:21,533 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:59:21,533 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:59:21,534 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:59:21,534 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:59:21,534 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:59:21,534 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:59:21,534 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:59:21,534 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:59:21,556 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states. [2020-08-22 18:59:21,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 18:59:21,577 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:21,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:21,579 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:21,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:21,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1739904560, now seen corresponding path program 1 times [2020-08-22 18:59:21,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:21,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953629930] [2020-08-22 18:59:21,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:21,652 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:22,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:22,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:22,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953629930] [2020-08-22 18:59:22,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:22,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:59:22,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929285170] [2020-08-22 18:59:22,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:59:22,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:22,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:59:22,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:59:22,253 INFO L87 Difference]: Start difference. First operand 391 states. Second operand 6 states. [2020-08-22 18:59:22,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:22,747 INFO L93 Difference]: Finished difference Result 695 states and 910 transitions. [2020-08-22 18:59:22,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:59:22,750 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-08-22 18:59:22,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:22,768 INFO L225 Difference]: With dead ends: 695 [2020-08-22 18:59:22,769 INFO L226 Difference]: Without dead ends: 370 [2020-08-22 18:59:22,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-22 18:59:22,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-08-22 18:59:22,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 355. [2020-08-22 18:59:22,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-08-22 18:59:22,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 414 transitions. [2020-08-22 18:59:22,861 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 414 transitions. Word has length 167 [2020-08-22 18:59:22,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:22,863 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 414 transitions. [2020-08-22 18:59:22,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:59:22,863 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 414 transitions. [2020-08-22 18:59:22,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-08-22 18:59:22,868 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:22,868 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:22,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:59:22,869 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:22,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:22,870 INFO L82 PathProgramCache]: Analyzing trace with hash 507328089, now seen corresponding path program 1 times [2020-08-22 18:59:22,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:22,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890603966] [2020-08-22 18:59:22,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:22,900 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:23,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:23,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:23,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890603966] [2020-08-22 18:59:23,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:23,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:59:23,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106205441] [2020-08-22 18:59:23,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:59:23,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:23,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:59:23,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:59:23,182 INFO L87 Difference]: Start difference. First operand 355 states and 414 transitions. Second operand 6 states. [2020-08-22 18:59:23,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:23,549 INFO L93 Difference]: Finished difference Result 616 states and 766 transitions. [2020-08-22 18:59:23,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:59:23,550 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 186 [2020-08-22 18:59:23,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:23,561 INFO L225 Difference]: With dead ends: 616 [2020-08-22 18:59:23,562 INFO L226 Difference]: Without dead ends: 413 [2020-08-22 18:59:23,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-22 18:59:23,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-08-22 18:59:23,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 368. [2020-08-22 18:59:23,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2020-08-22 18:59:23,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 432 transitions. [2020-08-22 18:59:23,660 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 432 transitions. Word has length 186 [2020-08-22 18:59:23,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:23,662 INFO L479 AbstractCegarLoop]: Abstraction has 368 states and 432 transitions. [2020-08-22 18:59:23,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:59:23,662 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 432 transitions. [2020-08-22 18:59:23,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-08-22 18:59:23,671 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:23,672 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:23,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:59:23,672 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:23,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:23,673 INFO L82 PathProgramCache]: Analyzing trace with hash -5837123, now seen corresponding path program 1 times [2020-08-22 18:59:23,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:23,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894553501] [2020-08-22 18:59:23,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:23,698 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:23,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:23,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:23,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894553501] [2020-08-22 18:59:23,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:23,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:23,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344816605] [2020-08-22 18:59:23,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:23,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:23,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:23,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:23,843 INFO L87 Difference]: Start difference. First operand 368 states and 432 transitions. Second operand 3 states. [2020-08-22 18:59:24,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:24,004 INFO L93 Difference]: Finished difference Result 612 states and 746 transitions. [2020-08-22 18:59:24,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:24,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-08-22 18:59:24,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:24,008 INFO L225 Difference]: With dead ends: 612 [2020-08-22 18:59:24,008 INFO L226 Difference]: Without dead ends: 396 [2020-08-22 18:59:24,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:24,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-08-22 18:59:24,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 386. [2020-08-22 18:59:24,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-08-22 18:59:24,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 455 transitions. [2020-08-22 18:59:24,043 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 455 transitions. Word has length 190 [2020-08-22 18:59:24,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:24,043 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 455 transitions. [2020-08-22 18:59:24,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:24,044 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 455 transitions. [2020-08-22 18:59:24,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-08-22 18:59:24,046 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:24,047 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:24,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:59:24,047 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:24,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:24,048 INFO L82 PathProgramCache]: Analyzing trace with hash 491551320, now seen corresponding path program 1 times [2020-08-22 18:59:24,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:24,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630966168] [2020-08-22 18:59:24,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:24,058 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:24,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:24,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:24,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1630966168] [2020-08-22 18:59:24,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:24,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:24,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136894069] [2020-08-22 18:59:24,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:24,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:24,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:24,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:24,171 INFO L87 Difference]: Start difference. First operand 386 states and 455 transitions. Second operand 3 states. [2020-08-22 18:59:24,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:24,295 INFO L93 Difference]: Finished difference Result 847 states and 1047 transitions. [2020-08-22 18:59:24,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:24,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-08-22 18:59:24,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:24,302 INFO L225 Difference]: With dead ends: 847 [2020-08-22 18:59:24,302 INFO L226 Difference]: Without dead ends: 613 [2020-08-22 18:59:24,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:24,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-08-22 18:59:24,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2020-08-22 18:59:24,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-08-22 18:59:24,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 743 transitions. [2020-08-22 18:59:24,387 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 743 transitions. Word has length 197 [2020-08-22 18:59:24,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:24,388 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 743 transitions. [2020-08-22 18:59:24,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:24,388 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 743 transitions. [2020-08-22 18:59:24,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-08-22 18:59:24,391 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:24,392 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:24,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:59:24,392 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:24,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:24,393 INFO L82 PathProgramCache]: Analyzing trace with hash -525577979, now seen corresponding path program 1 times [2020-08-22 18:59:24,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:24,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970693282] [2020-08-22 18:59:24,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:24,402 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:24,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:24,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:24,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970693282] [2020-08-22 18:59:24,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:24,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:24,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313673132] [2020-08-22 18:59:24,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:24,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:24,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:24,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:24,531 INFO L87 Difference]: Start difference. First operand 613 states and 743 transitions. Second operand 3 states. [2020-08-22 18:59:24,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:24,779 INFO L93 Difference]: Finished difference Result 1135 states and 1416 transitions. [2020-08-22 18:59:24,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:24,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-08-22 18:59:24,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:24,787 INFO L225 Difference]: With dead ends: 1135 [2020-08-22 18:59:24,787 INFO L226 Difference]: Without dead ends: 674 [2020-08-22 18:59:24,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:24,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-08-22 18:59:24,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 653. [2020-08-22 18:59:24,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2020-08-22 18:59:24,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 793 transitions. [2020-08-22 18:59:24,879 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 793 transitions. Word has length 210 [2020-08-22 18:59:24,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:24,880 INFO L479 AbstractCegarLoop]: Abstraction has 653 states and 793 transitions. [2020-08-22 18:59:24,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:24,881 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 793 transitions. [2020-08-22 18:59:24,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-08-22 18:59:24,884 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:24,885 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:24,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:59:24,885 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:24,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:24,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1730770704, now seen corresponding path program 1 times [2020-08-22 18:59:24,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:24,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1847014993] [2020-08-22 18:59:24,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:24,899 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:24,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:24,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:25,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:25,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1847014993] [2020-08-22 18:59:25,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:25,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:25,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359681078] [2020-08-22 18:59:25,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:25,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:25,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:25,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:25,051 INFO L87 Difference]: Start difference. First operand 653 states and 793 transitions. Second operand 3 states. [2020-08-22 18:59:25,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:25,213 INFO L93 Difference]: Finished difference Result 1585 states and 1965 transitions. [2020-08-22 18:59:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:25,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-08-22 18:59:25,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:25,222 INFO L225 Difference]: With dead ends: 1585 [2020-08-22 18:59:25,222 INFO L226 Difference]: Without dead ends: 1084 [2020-08-22 18:59:25,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:25,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2020-08-22 18:59:25,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1082. [2020-08-22 18:59:25,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1082 states. [2020-08-22 18:59:25,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1319 transitions. [2020-08-22 18:59:25,375 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1319 transitions. Word has length 217 [2020-08-22 18:59:25,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:25,376 INFO L479 AbstractCegarLoop]: Abstraction has 1082 states and 1319 transitions. [2020-08-22 18:59:25,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:25,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1319 transitions. [2020-08-22 18:59:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-08-22 18:59:25,383 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:25,384 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:25,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 18:59:25,384 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:25,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:25,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1258952316, now seen corresponding path program 1 times [2020-08-22 18:59:25,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:25,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507360911] [2020-08-22 18:59:25,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:25,396 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:25,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:25,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:25,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507360911] [2020-08-22 18:59:25,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:25,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:25,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256912744] [2020-08-22 18:59:25,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:25,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:25,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:25,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:25,530 INFO L87 Difference]: Start difference. First operand 1082 states and 1319 transitions. Second operand 3 states. [2020-08-22 18:59:25,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:25,715 INFO L93 Difference]: Finished difference Result 2030 states and 2504 transitions. [2020-08-22 18:59:25,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:25,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-08-22 18:59:25,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:25,726 INFO L225 Difference]: With dead ends: 2030 [2020-08-22 18:59:25,726 INFO L226 Difference]: Without dead ends: 1100 [2020-08-22 18:59:25,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:25,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2020-08-22 18:59:25,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1090. [2020-08-22 18:59:25,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1090 states. [2020-08-22 18:59:25,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1323 transitions. [2020-08-22 18:59:25,924 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1323 transitions. Word has length 218 [2020-08-22 18:59:25,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:25,925 INFO L479 AbstractCegarLoop]: Abstraction has 1090 states and 1323 transitions. [2020-08-22 18:59:25,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:25,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1323 transitions. [2020-08-22 18:59:25,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-08-22 18:59:25,929 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:25,930 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:25,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 18:59:25,930 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:25,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:25,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1830962644, now seen corresponding path program 1 times [2020-08-22 18:59:25,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:25,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143805983] [2020-08-22 18:59:25,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:25,936 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:25,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:26,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143805983] [2020-08-22 18:59:26,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:26,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:26,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035604804] [2020-08-22 18:59:26,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:26,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:26,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:26,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:26,030 INFO L87 Difference]: Start difference. First operand 1090 states and 1323 transitions. Second operand 3 states. [2020-08-22 18:59:26,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:26,277 INFO L93 Difference]: Finished difference Result 2952 states and 3635 transitions. [2020-08-22 18:59:26,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:26,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-08-22 18:59:26,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:26,291 INFO L225 Difference]: With dead ends: 2952 [2020-08-22 18:59:26,291 INFO L226 Difference]: Without dead ends: 2014 [2020-08-22 18:59:26,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:26,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2020-08-22 18:59:26,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2012. [2020-08-22 18:59:26,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2012 states. [2020-08-22 18:59:26,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 2455 transitions. [2020-08-22 18:59:26,548 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 2455 transitions. Word has length 220 [2020-08-22 18:59:26,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:26,549 INFO L479 AbstractCegarLoop]: Abstraction has 2012 states and 2455 transitions. [2020-08-22 18:59:26,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:26,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 2455 transitions. [2020-08-22 18:59:26,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-08-22 18:59:26,554 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:26,554 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:26,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 18:59:26,555 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:26,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:26,555 INFO L82 PathProgramCache]: Analyzing trace with hash 777824814, now seen corresponding path program 1 times [2020-08-22 18:59:26,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:26,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857980147] [2020-08-22 18:59:26,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:26,564 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:26,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:26,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857980147] [2020-08-22 18:59:26,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:26,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:26,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368573259] [2020-08-22 18:59:26,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:26,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:26,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:26,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:26,649 INFO L87 Difference]: Start difference. First operand 2012 states and 2455 transitions. Second operand 3 states. [2020-08-22 18:59:26,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:26,887 INFO L93 Difference]: Finished difference Result 2967 states and 3629 transitions. [2020-08-22 18:59:26,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:26,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-08-22 18:59:26,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:26,900 INFO L225 Difference]: With dead ends: 2967 [2020-08-22 18:59:26,900 INFO L226 Difference]: Without dead ends: 2029 [2020-08-22 18:59:26,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:26,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2020-08-22 18:59:27,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 2027. [2020-08-22 18:59:27,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2027 states. [2020-08-22 18:59:27,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2461 transitions. [2020-08-22 18:59:27,224 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2461 transitions. Word has length 220 [2020-08-22 18:59:27,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:27,225 INFO L479 AbstractCegarLoop]: Abstraction has 2027 states and 2461 transitions. [2020-08-22 18:59:27,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2461 transitions. [2020-08-22 18:59:27,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-08-22 18:59:27,231 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:27,232 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:27,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 18:59:27,232 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:27,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:27,233 INFO L82 PathProgramCache]: Analyzing trace with hash -939173952, now seen corresponding path program 1 times [2020-08-22 18:59:27,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:27,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788804699] [2020-08-22 18:59:27,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:27,244 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:27,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:27,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788804699] [2020-08-22 18:59:27,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:27,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:27,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808454072] [2020-08-22 18:59:27,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:27,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:27,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:27,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:27,364 INFO L87 Difference]: Start difference. First operand 2027 states and 2461 transitions. Second operand 3 states. [2020-08-22 18:59:27,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:27,767 INFO L93 Difference]: Finished difference Result 3887 states and 4768 transitions. [2020-08-22 18:59:27,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:27,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-08-22 18:59:27,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:27,789 INFO L225 Difference]: With dead ends: 3887 [2020-08-22 18:59:27,790 INFO L226 Difference]: Without dead ends: 2946 [2020-08-22 18:59:27,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:27,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2020-08-22 18:59:28,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2020-08-22 18:59:28,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2946 states. [2020-08-22 18:59:28,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 3588 transitions. [2020-08-22 18:59:28,114 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 3588 transitions. Word has length 221 [2020-08-22 18:59:28,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:28,115 INFO L479 AbstractCegarLoop]: Abstraction has 2946 states and 3588 transitions. [2020-08-22 18:59:28,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:28,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 3588 transitions. [2020-08-22 18:59:28,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-08-22 18:59:28,122 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:28,122 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:28,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 18:59:28,123 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:28,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:28,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1852648600, now seen corresponding path program 1 times [2020-08-22 18:59:28,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:28,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964992626] [2020-08-22 18:59:28,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:28,129 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:28,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:28,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:28,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964992626] [2020-08-22 18:59:28,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:28,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:28,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046590603] [2020-08-22 18:59:28,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:28,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:28,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:28,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:28,216 INFO L87 Difference]: Start difference. First operand 2946 states and 3588 transitions. Second operand 3 states. [2020-08-22 18:59:28,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:28,774 INFO L93 Difference]: Finished difference Result 6400 states and 8052 transitions. [2020-08-22 18:59:28,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:28,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2020-08-22 18:59:28,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:28,796 INFO L225 Difference]: With dead ends: 6400 [2020-08-22 18:59:28,796 INFO L226 Difference]: Without dead ends: 3609 [2020-08-22 18:59:28,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:28,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3609 states. [2020-08-22 18:59:29,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3609 to 3423. [2020-08-22 18:59:29,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3423 states. [2020-08-22 18:59:29,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3423 states to 3423 states and 4104 transitions. [2020-08-22 18:59:29,066 INFO L78 Accepts]: Start accepts. Automaton has 3423 states and 4104 transitions. Word has length 231 [2020-08-22 18:59:29,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:29,067 INFO L479 AbstractCegarLoop]: Abstraction has 3423 states and 4104 transitions. [2020-08-22 18:59:29,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:29,067 INFO L276 IsEmpty]: Start isEmpty. Operand 3423 states and 4104 transitions. [2020-08-22 18:59:29,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-08-22 18:59:29,078 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:29,079 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:29,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 18:59:29,079 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:29,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:29,080 INFO L82 PathProgramCache]: Analyzing trace with hash 598717384, now seen corresponding path program 1 times [2020-08-22 18:59:29,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:29,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642110556] [2020-08-22 18:59:29,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:29,089 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:29,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:29,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642110556] [2020-08-22 18:59:29,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:29,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:29,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564701397] [2020-08-22 18:59:29,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:29,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:29,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:29,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:29,183 INFO L87 Difference]: Start difference. First operand 3423 states and 4104 transitions. Second operand 3 states. [2020-08-22 18:59:29,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:29,647 INFO L93 Difference]: Finished difference Result 7032 states and 8518 transitions. [2020-08-22 18:59:29,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:29,648 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2020-08-22 18:59:29,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:29,666 INFO L225 Difference]: With dead ends: 7032 [2020-08-22 18:59:29,666 INFO L226 Difference]: Without dead ends: 3776 [2020-08-22 18:59:29,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:29,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2020-08-22 18:59:29,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3636. [2020-08-22 18:59:29,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3636 states. [2020-08-22 18:59:29,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 4332 transitions. [2020-08-22 18:59:29,956 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 4332 transitions. Word has length 231 [2020-08-22 18:59:29,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:29,957 INFO L479 AbstractCegarLoop]: Abstraction has 3636 states and 4332 transitions. [2020-08-22 18:59:29,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:29,958 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 4332 transitions. [2020-08-22 18:59:29,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-08-22 18:59:29,967 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:29,968 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:29,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 18:59:29,968 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:29,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:29,969 INFO L82 PathProgramCache]: Analyzing trace with hash -320985619, now seen corresponding path program 1 times [2020-08-22 18:59:29,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:29,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [58247312] [2020-08-22 18:59:29,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:29,978 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:30,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:30,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:30,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [58247312] [2020-08-22 18:59:30,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:30,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:30,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251014709] [2020-08-22 18:59:30,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:30,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:30,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:30,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:30,077 INFO L87 Difference]: Start difference. First operand 3636 states and 4332 transitions. Second operand 3 states. [2020-08-22 18:59:30,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:30,578 INFO L93 Difference]: Finished difference Result 7105 states and 8510 transitions. [2020-08-22 18:59:30,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:30,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2020-08-22 18:59:30,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:30,601 INFO L225 Difference]: With dead ends: 7105 [2020-08-22 18:59:30,601 INFO L226 Difference]: Without dead ends: 4785 [2020-08-22 18:59:30,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:30,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2020-08-22 18:59:30,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4785. [2020-08-22 18:59:30,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4785 states. [2020-08-22 18:59:30,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4785 states to 4785 states and 5711 transitions. [2020-08-22 18:59:30,928 INFO L78 Accepts]: Start accepts. Automaton has 4785 states and 5711 transitions. Word has length 246 [2020-08-22 18:59:30,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:30,928 INFO L479 AbstractCegarLoop]: Abstraction has 4785 states and 5711 transitions. [2020-08-22 18:59:30,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:30,929 INFO L276 IsEmpty]: Start isEmpty. Operand 4785 states and 5711 transitions. [2020-08-22 18:59:30,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-08-22 18:59:30,940 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:30,941 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:30,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 18:59:30,941 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:30,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:30,942 INFO L82 PathProgramCache]: Analyzing trace with hash -2112197708, now seen corresponding path program 1 times [2020-08-22 18:59:30,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:30,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401900865] [2020-08-22 18:59:30,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:30,949 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:31,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:31,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:31,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401900865] [2020-08-22 18:59:31,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:31,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:31,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121104556] [2020-08-22 18:59:31,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:31,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:31,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:31,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:31,085 INFO L87 Difference]: Start difference. First operand 4785 states and 5711 transitions. Second operand 3 states. [2020-08-22 18:59:31,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:31,573 INFO L93 Difference]: Finished difference Result 9827 states and 11856 transitions. [2020-08-22 18:59:31,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:31,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-08-22 18:59:31,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:31,599 INFO L225 Difference]: With dead ends: 9827 [2020-08-22 18:59:31,599 INFO L226 Difference]: Without dead ends: 5209 [2020-08-22 18:59:31,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:31,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2020-08-22 18:59:31,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5101. [2020-08-22 18:59:31,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5101 states. [2020-08-22 18:59:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 6047 transitions. [2020-08-22 18:59:31,880 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 6047 transitions. Word has length 255 [2020-08-22 18:59:31,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:31,881 INFO L479 AbstractCegarLoop]: Abstraction has 5101 states and 6047 transitions. [2020-08-22 18:59:31,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:31,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 6047 transitions. [2020-08-22 18:59:31,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-08-22 18:59:31,894 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:31,894 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:31,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 18:59:31,895 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:31,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:31,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1182669231, now seen corresponding path program 1 times [2020-08-22 18:59:31,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:31,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783277397] [2020-08-22 18:59:31,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:31,903 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:32,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:32,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:32,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783277397] [2020-08-22 18:59:32,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:32,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 18:59:32,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519794984] [2020-08-22 18:59:32,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 18:59:32,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:32,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 18:59:32,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:59:32,078 INFO L87 Difference]: Start difference. First operand 5101 states and 6047 transitions. Second operand 5 states. [2020-08-22 18:59:32,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:32,777 INFO L93 Difference]: Finished difference Result 12439 states and 15060 transitions. [2020-08-22 18:59:32,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:59:32,778 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2020-08-22 18:59:32,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:32,801 INFO L225 Difference]: With dead ends: 12439 [2020-08-22 18:59:32,801 INFO L226 Difference]: Without dead ends: 7505 [2020-08-22 18:59:32,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-22 18:59:32,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2020-08-22 18:59:33,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 5858. [2020-08-22 18:59:33,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5858 states. [2020-08-22 18:59:33,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 6931 transitions. [2020-08-22 18:59:33,232 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 6931 transitions. Word has length 274 [2020-08-22 18:59:33,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:33,233 INFO L479 AbstractCegarLoop]: Abstraction has 5858 states and 6931 transitions. [2020-08-22 18:59:33,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 18:59:33,233 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 6931 transitions. [2020-08-22 18:59:33,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-08-22 18:59:33,246 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:33,246 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:33,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-22 18:59:33,247 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:33,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:33,247 INFO L82 PathProgramCache]: Analyzing trace with hash 178559340, now seen corresponding path program 2 times [2020-08-22 18:59:33,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:33,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995996388] [2020-08-22 18:59:33,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:33,260 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:33,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:33,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:33,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995996388] [2020-08-22 18:59:33,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:33,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 18:59:33,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380691670] [2020-08-22 18:59:33,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 18:59:33,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:33,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 18:59:33,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:59:33,381 INFO L87 Difference]: Start difference. First operand 5858 states and 6931 transitions. Second operand 5 states. [2020-08-22 18:59:34,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:34,149 INFO L93 Difference]: Finished difference Result 9951 states and 11714 transitions. [2020-08-22 18:59:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:59:34,149 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 277 [2020-08-22 18:59:34,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:34,167 INFO L225 Difference]: With dead ends: 9951 [2020-08-22 18:59:34,167 INFO L226 Difference]: Without dead ends: 7022 [2020-08-22 18:59:34,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 18:59:34,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7022 states. [2020-08-22 18:59:34,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7022 to 5858. [2020-08-22 18:59:34,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5858 states. [2020-08-22 18:59:34,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 6931 transitions. [2020-08-22 18:59:34,539 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 6931 transitions. Word has length 277 [2020-08-22 18:59:34,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:34,540 INFO L479 AbstractCegarLoop]: Abstraction has 5858 states and 6931 transitions. [2020-08-22 18:59:34,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 18:59:34,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 6931 transitions. [2020-08-22 18:59:34,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-08-22 18:59:34,550 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:34,551 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:34,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-22 18:59:34,551 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:34,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:34,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1946922308, now seen corresponding path program 1 times [2020-08-22 18:59:34,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:34,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554762730] [2020-08-22 18:59:34,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:34,559 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:34,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:34,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554762730] [2020-08-22 18:59:34,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:34,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:59:34,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766985017] [2020-08-22 18:59:34,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:59:34,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:34,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:59:34,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:59:34,688 INFO L87 Difference]: Start difference. First operand 5858 states and 6931 transitions. Second operand 4 states. [2020-08-22 18:59:35,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:35,794 INFO L93 Difference]: Finished difference Result 12288 states and 14641 transitions. [2020-08-22 18:59:35,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:59:35,794 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 277 [2020-08-22 18:59:35,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:35,823 INFO L225 Difference]: With dead ends: 12288 [2020-08-22 18:59:35,824 INFO L226 Difference]: Without dead ends: 9355 [2020-08-22 18:59:35,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:59:35,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9355 states. [2020-08-22 18:59:36,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9355 to 5930. [2020-08-22 18:59:36,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5930 states. [2020-08-22 18:59:36,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5930 states to 5930 states and 7019 transitions. [2020-08-22 18:59:36,474 INFO L78 Accepts]: Start accepts. Automaton has 5930 states and 7019 transitions. Word has length 277 [2020-08-22 18:59:36,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:36,474 INFO L479 AbstractCegarLoop]: Abstraction has 5930 states and 7019 transitions. [2020-08-22 18:59:36,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:59:36,474 INFO L276 IsEmpty]: Start isEmpty. Operand 5930 states and 7019 transitions. [2020-08-22 18:59:36,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-08-22 18:59:36,482 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:36,483 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:36,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-22 18:59:36,483 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:36,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:36,484 INFO L82 PathProgramCache]: Analyzing trace with hash -507122916, now seen corresponding path program 3 times [2020-08-22 18:59:36,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:36,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748853919] [2020-08-22 18:59:36,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:36,490 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:36,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:36,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:36,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748853919] [2020-08-22 18:59:36,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:36,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 18:59:36,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70416193] [2020-08-22 18:59:36,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 18:59:36,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:36,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 18:59:36,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:59:36,624 INFO L87 Difference]: Start difference. First operand 5930 states and 7019 transitions. Second operand 5 states. [2020-08-22 18:59:37,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:37,432 INFO L93 Difference]: Finished difference Result 9635 states and 11354 transitions. [2020-08-22 18:59:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:59:37,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 277 [2020-08-22 18:59:37,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:37,448 INFO L225 Difference]: With dead ends: 9635 [2020-08-22 18:59:37,448 INFO L226 Difference]: Without dead ends: 6634 [2020-08-22 18:59:37,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 18:59:37,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6634 states. [2020-08-22 18:59:38,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6634 to 6010. [2020-08-22 18:59:38,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6010 states. [2020-08-22 18:59:38,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 7107 transitions. [2020-08-22 18:59:38,069 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 7107 transitions. Word has length 277 [2020-08-22 18:59:38,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:38,069 INFO L479 AbstractCegarLoop]: Abstraction has 6010 states and 7107 transitions. [2020-08-22 18:59:38,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 18:59:38,070 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 7107 transitions. [2020-08-22 18:59:38,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-08-22 18:59:38,080 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:38,080 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:38,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-22 18:59:38,081 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:38,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:38,081 INFO L82 PathProgramCache]: Analyzing trace with hash 875870054, now seen corresponding path program 1 times [2020-08-22 18:59:38,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:38,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221806761] [2020-08-22 18:59:38,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:38,096 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:38,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:59:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:59:38,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:59:38,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221806761] [2020-08-22 18:59:38,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:59:38,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:59:38,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752625231] [2020-08-22 18:59:38,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:59:38,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:59:38,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:59:38,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:38,223 INFO L87 Difference]: Start difference. First operand 6010 states and 7107 transitions. Second operand 3 states. [2020-08-22 18:59:38,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:59:38,713 INFO L93 Difference]: Finished difference Result 11210 states and 13290 transitions. [2020-08-22 18:59:38,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:59:38,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 279 [2020-08-22 18:59:38,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:59:38,730 INFO L225 Difference]: With dead ends: 11210 [2020-08-22 18:59:38,730 INFO L226 Difference]: Without dead ends: 6822 [2020-08-22 18:59:38,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:59:38,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6822 states. [2020-08-22 18:59:39,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6822 to 6822. [2020-08-22 18:59:39,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6822 states. [2020-08-22 18:59:39,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6822 states to 6822 states and 8061 transitions. [2020-08-22 18:59:39,468 INFO L78 Accepts]: Start accepts. Automaton has 6822 states and 8061 transitions. Word has length 279 [2020-08-22 18:59:39,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:59:39,468 INFO L479 AbstractCegarLoop]: Abstraction has 6822 states and 8061 transitions. [2020-08-22 18:59:39,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:59:39,468 INFO L276 IsEmpty]: Start isEmpty. Operand 6822 states and 8061 transitions. [2020-08-22 18:59:39,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-08-22 18:59:39,475 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:59:39,475 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:59:39,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-22 18:59:39,475 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:59:39,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:59:39,476 INFO L82 PathProgramCache]: Analyzing trace with hash -802173269, now seen corresponding path program 1 times [2020-08-22 18:59:39,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:59:39,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441945282] [2020-08-22 18:59:39,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:59:39,484 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:59:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:59:39,529 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:59:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:59:39,563 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:59:39,670 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:59:39,670 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:59:39,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-22 18:59:39,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:59:39 BoogieIcfgContainer [2020-08-22 18:59:39,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:59:39,706 INFO L168 Benchmark]: Toolchain (without parser) took 19741.59 ms. Allocated memory was 139.5 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 102.2 MB in the beginning and 817.9 MB in the end (delta: -715.7 MB). Peak memory consumption was 296.2 MB. Max. memory is 7.1 GB. [2020-08-22 18:59:39,708 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:59:39,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 501.43 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.0 MB in the beginning and 178.8 MB in the end (delta: -76.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:59:39,709 INFO L168 Benchmark]: Boogie Preprocessor took 55.61 ms. Allocated memory is still 203.4 MB. Free memory was 178.8 MB in the beginning and 176.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:59:39,710 INFO L168 Benchmark]: RCFGBuilder took 944.99 ms. Allocated memory is still 203.4 MB. Free memory was 176.1 MB in the beginning and 111.1 MB in the end (delta: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. [2020-08-22 18:59:39,710 INFO L168 Benchmark]: TraceAbstraction took 18233.91 ms. Allocated memory was 203.4 MB in the beginning and 1.2 GB in the end (delta: 947.9 MB). Free memory was 110.5 MB in the beginning and 817.9 MB in the end (delta: -707.4 MB). Peak memory consumption was 240.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:59:39,713 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 501.43 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.0 MB in the beginning and 178.8 MB in the end (delta: -76.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.61 ms. Allocated memory is still 203.4 MB. Free memory was 178.8 MB in the beginning and 176.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 944.99 ms. Allocated memory is still 203.4 MB. Free memory was 176.1 MB in the beginning and 111.1 MB in the end (delta: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18233.91 ms. Allocated memory was 203.4 MB in the beginning and 1.2 GB in the end (delta: 947.9 MB). Free memory was 110.5 MB in the beginning and 817.9 MB in the end (delta: -707.4 MB). Peak memory consumption was 240.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L553] int s ; [L557] s = 12292 [L558] CALL ssl3_connect(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags = __VERIFIER_nondet_int() ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 = __VERIFIER_nondet_int() ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L73] long __cil_tmp65 ; [L77] s__state = initial_state [L78] blastFlag = 0 [L79] tmp = __VERIFIER_nondet_int() [L80] cb = 0 [L81] ret = -1 [L82] skip = 0 [L83] tmp___0 = 0 [L84] COND TRUE s__info_callback != 0 [L85] cb = s__info_callback [L91] s__in_handshake ++ [L92] COND FALSE !(tmp___1 + 12288) [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L203] s__new_session = 1 [L204] s__state = 4096 [L205] s__ctx__stats__sess_connect_renegotiate ++ [L210] s__server = 0 [L211] COND TRUE cb != 0 [L215] __cil_tmp55 = s__version + 65280 [L216] COND FALSE !(__cil_tmp55 != 768) [L221] s__type = 4096 [L222] COND FALSE !(s__init_buf___0 == 0) [L234] COND FALSE !(! tmp___4) [L238] COND FALSE !(! tmp___5) [L242] s__state = 4368 [L243] s__ctx__stats__sess_connect ++ [L244] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L248] s__shutdown = 0 [L249] ret = __VERIFIER_nondet_int() [L250] COND TRUE blastFlag == 0 [L251] blastFlag = 1 [L253] COND FALSE !(ret <= 0) [L256] s__state = 4384 [L257] s__init_num = 0 [L258] COND TRUE s__bbio != s__wbio [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L264] ret = __VERIFIER_nondet_int() [L265] COND TRUE blastFlag == 1 [L266] blastFlag = 2 [L268] COND FALSE !(ret <= 0) [L271] COND FALSE !(\read(s__hit)) [L274] s__state = 4400 [L276] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L281] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L282] COND FALSE !(__cil_tmp56 + 256UL) [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 2 [L287] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 391 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.1s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8673 SDtfs, 5240 SDslu, 9235 SDs, 0 SdLazy, 2062 SolverSat, 271 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6822occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 7401 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...