/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_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:58:30,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:58:30,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:58:30,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 18:58:30,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:58:30,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:58:30,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:58:30,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:58:30,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:58:30,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:58:30,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:58:30,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:58:30,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:58:30,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:58:30,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:58:30,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:58:30,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:58:30,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:58:30,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:58:30,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:58:30,896 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 18:58:30,906 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:58:30,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:58:30,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:58:30,907 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:58:30,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:58:30,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:58:30,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:58:30,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:58:30,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:58:30,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:58:30,909 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:58:30,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:58:30,909 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:58:30,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:58:30,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:58:30,910 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:58:30,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:58:30,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:58:30,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:58:30,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:58:30,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:58:30,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:58:30,911 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:58:31,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:58:31,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:58:31,258 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:58:31,260 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:58:31,260 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:58:31,261 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-08-22 18:58:31,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7506ea13a/97f96cfe42c64c249eb3dd27e3b20902/FLAGbf014e101 [2020-08-22 18:58:31,893 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:58:31,894 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-08-22 18:58:31,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7506ea13a/97f96cfe42c64c249eb3dd27e3b20902/FLAGbf014e101 [2020-08-22 18:58:32,200 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7506ea13a/97f96cfe42c64c249eb3dd27e3b20902 [2020-08-22 18:58:32,210 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:58:32,212 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:58:32,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:58:32,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:58:32,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:58:32,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:58:32" (1/1) ... [2020-08-22 18:58:32,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9fea37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:58:32, skipping insertion in model container [2020-08-22 18:58:32,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:58:32" (1/1) ... [2020-08-22 18:58:32,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:58:32,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:58:32,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:58:32,574 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:58:32,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:58:32,791 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:58:32,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:58:32 WrapperNode [2020-08-22 18:58:32,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:58:32,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:58:32,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:58:32,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:58:32,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:58:32" (1/1) ... [2020-08-22 18:58:32,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:58:32" (1/1) ... [2020-08-22 18:58:32,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:58:32" (1/1) ... [2020-08-22 18:58:32,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:58:32" (1/1) ... [2020-08-22 18:58:32,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:58:32" (1/1) ... [2020-08-22 18:58:32,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:58:32" (1/1) ... [2020-08-22 18:58:32,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:58:32" (1/1) ... [2020-08-22 18:58:32,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:58:32,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:58:32,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:58:32,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:58:32,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:58:32" (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 18:58:32,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:58:32,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:58:32,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-08-22 18:58:32,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:58:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:58:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-08-22 18:58:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:58:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-08-22 18:58:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-08-22 18:58:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:58:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:58:32,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:58:33,063 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-08-22 18:58:33,727 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-08-22 18:58:33,727 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-08-22 18:58:33,752 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:58:33,753 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 18:58:33,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:58:33 BoogieIcfgContainer [2020-08-22 18:58:33,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:58:33,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:58:33,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:58:33,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:58:33,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:58:32" (1/3) ... [2020-08-22 18:58:33,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2faf6a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:58:33, skipping insertion in model container [2020-08-22 18:58:33,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:58:32" (2/3) ... [2020-08-22 18:58:33,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2faf6a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:58:33, skipping insertion in model container [2020-08-22 18:58:33,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:58:33" (3/3) ... [2020-08-22 18:58:33,769 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-2.c [2020-08-22 18:58:33,780 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:58:33,789 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:58:33,802 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:58:33,826 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:58:33,827 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:58:33,827 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:58:33,827 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:58:33,827 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:58:33,828 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:58:33,828 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:58:33,828 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:58:33,851 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states. [2020-08-22 18:58:33,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-08-22 18:58:33,873 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:33,875 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] [2020-08-22 18:58:33,875 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:33,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:33,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1836119895, now seen corresponding path program 1 times [2020-08-22 18:58:33,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:33,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117783510] [2020-08-22 18:58:33,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:33,955 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:34,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:34,414 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 18:58:34,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117783510] [2020-08-22 18:58:34,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:34,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 18:58:34,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529295904] [2020-08-22 18:58:34,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 18:58:34,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:34,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 18:58:34,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:58:34,447 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 5 states. [2020-08-22 18:58:34,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:34,919 INFO L93 Difference]: Finished difference Result 686 states and 901 transitions. [2020-08-22 18:58:34,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:58:34,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-08-22 18:58:34,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:34,940 INFO L225 Difference]: With dead ends: 686 [2020-08-22 18:58:34,941 INFO L226 Difference]: Without dead ends: 362 [2020-08-22 18:58:34,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-08-22 18:58:34,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-08-22 18:58:35,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 347. [2020-08-22 18:58:35,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-08-22 18:58:35,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 406 transitions. [2020-08-22 18:58:35,044 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 406 transitions. Word has length 160 [2020-08-22 18:58:35,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:35,046 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 406 transitions. [2020-08-22 18:58:35,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 18:58:35,046 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 406 transitions. [2020-08-22 18:58:35,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-08-22 18:58:35,051 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:35,051 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] [2020-08-22 18:58:35,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:58:35,052 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:35,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:35,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1755332249, now seen corresponding path program 1 times [2020-08-22 18:58:35,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:35,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169472131] [2020-08-22 18:58:35,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:35,091 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:35,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:35,397 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 18:58:35,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169472131] [2020-08-22 18:58:35,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:35,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 18:58:35,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776296236] [2020-08-22 18:58:35,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 18:58:35,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:35,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 18:58:35,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:58:35,403 INFO L87 Difference]: Start difference. First operand 347 states and 406 transitions. Second operand 5 states. [2020-08-22 18:58:35,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:35,732 INFO L93 Difference]: Finished difference Result 607 states and 757 transitions. [2020-08-22 18:58:35,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:58:35,733 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 179 [2020-08-22 18:58:35,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:35,739 INFO L225 Difference]: With dead ends: 607 [2020-08-22 18:58:35,739 INFO L226 Difference]: Without dead ends: 405 [2020-08-22 18:58:35,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-08-22 18:58:35,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-08-22 18:58:35,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 360. [2020-08-22 18:58:35,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-08-22 18:58:35,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2020-08-22 18:58:35,814 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 179 [2020-08-22 18:58:35,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:35,817 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2020-08-22 18:58:35,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 18:58:35,817 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2020-08-22 18:58:35,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-08-22 18:58:35,830 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:35,830 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] [2020-08-22 18:58:35,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:58:35,831 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:35,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:35,832 INFO L82 PathProgramCache]: Analyzing trace with hash 933719357, now seen corresponding path program 1 times [2020-08-22 18:58:35,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:35,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983908797] [2020-08-22 18:58:35,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:35,849 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:35,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:35,969 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 18:58:35,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983908797] [2020-08-22 18:58:35,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:35,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:58:35,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270621909] [2020-08-22 18:58:35,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:58:35,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:35,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:58:35,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:58:35,972 INFO L87 Difference]: Start difference. First operand 360 states and 424 transitions. Second operand 3 states. [2020-08-22 18:58:36,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:36,147 INFO L93 Difference]: Finished difference Result 603 states and 737 transitions. [2020-08-22 18:58:36,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:58:36,147 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-08-22 18:58:36,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:36,151 INFO L225 Difference]: With dead ends: 603 [2020-08-22 18:58:36,151 INFO L226 Difference]: Without dead ends: 388 [2020-08-22 18:58:36,152 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 18:58:36,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-08-22 18:58:36,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 378. [2020-08-22 18:58:36,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-08-22 18:58:36,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 447 transitions. [2020-08-22 18:58:36,188 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 447 transitions. Word has length 183 [2020-08-22 18:58:36,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:36,188 INFO L479 AbstractCegarLoop]: Abstraction has 378 states and 447 transitions. [2020-08-22 18:58:36,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:58:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 447 transitions. [2020-08-22 18:58:36,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-08-22 18:58:36,191 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:36,192 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 18:58:36,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:58:36,192 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:36,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:36,192 INFO L82 PathProgramCache]: Analyzing trace with hash 787271153, now seen corresponding path program 1 times [2020-08-22 18:58:36,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:36,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799273101] [2020-08-22 18:58:36,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:36,208 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:36,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:36,308 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 18:58:36,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799273101] [2020-08-22 18:58:36,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:36,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:58:36,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112232201] [2020-08-22 18:58:36,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:58:36,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:36,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:58:36,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:58:36,312 INFO L87 Difference]: Start difference. First operand 378 states and 447 transitions. Second operand 3 states. [2020-08-22 18:58:36,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:36,477 INFO L93 Difference]: Finished difference Result 837 states and 1037 transitions. [2020-08-22 18:58:36,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:58:36,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-08-22 18:58:36,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:36,483 INFO L225 Difference]: With dead ends: 837 [2020-08-22 18:58:36,484 INFO L226 Difference]: Without dead ends: 604 [2020-08-22 18:58:36,486 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 18:58:36,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-08-22 18:58:36,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2020-08-22 18:58:36,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-08-22 18:58:36,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 734 transitions. [2020-08-22 18:58:36,575 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 734 transitions. Word has length 190 [2020-08-22 18:58:36,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:36,576 INFO L479 AbstractCegarLoop]: Abstraction has 604 states and 734 transitions. [2020-08-22 18:58:36,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:58:36,576 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 734 transitions. [2020-08-22 18:58:36,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-08-22 18:58:36,582 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:36,583 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] [2020-08-22 18:58:36,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:58:36,584 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:36,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:36,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1378664763, now seen corresponding path program 1 times [2020-08-22 18:58:36,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:36,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247833416] [2020-08-22 18:58:36,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:36,600 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:36,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:36,756 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 18:58:36,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247833416] [2020-08-22 18:58:36,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:36,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:58:36,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299807006] [2020-08-22 18:58:36,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:58:36,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:36,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:58:36,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:58:36,760 INFO L87 Difference]: Start difference. First operand 604 states and 734 transitions. Second operand 3 states. [2020-08-22 18:58:37,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:37,054 INFO L93 Difference]: Finished difference Result 1124 states and 1405 transitions. [2020-08-22 18:58:37,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:58:37,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-08-22 18:58:37,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:37,060 INFO L225 Difference]: With dead ends: 1124 [2020-08-22 18:58:37,061 INFO L226 Difference]: Without dead ends: 665 [2020-08-22 18:58:37,063 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 18:58:37,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-08-22 18:58:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 644. [2020-08-22 18:58:37,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-08-22 18:58:37,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 784 transitions. [2020-08-22 18:58:37,165 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 784 transitions. Word has length 203 [2020-08-22 18:58:37,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:37,166 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 784 transitions. [2020-08-22 18:58:37,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:58:37,167 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 784 transitions. [2020-08-22 18:58:37,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-08-22 18:58:37,173 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:37,174 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] [2020-08-22 18:58:37,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:58:37,175 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:37,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:37,175 INFO L82 PathProgramCache]: Analyzing trace with hash -2019314839, now seen corresponding path program 1 times [2020-08-22 18:58:37,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:37,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950684258] [2020-08-22 18:58:37,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:37,190 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:37,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:37,422 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 18:58:37,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950684258] [2020-08-22 18:58:37,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:37,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:58:37,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358413530] [2020-08-22 18:58:37,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:58:37,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:37,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:58:37,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:58:37,429 INFO L87 Difference]: Start difference. First operand 644 states and 784 transitions. Second operand 3 states. [2020-08-22 18:58:37,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:37,607 INFO L93 Difference]: Finished difference Result 1572 states and 1952 transitions. [2020-08-22 18:58:37,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:58:37,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-08-22 18:58:37,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:37,617 INFO L225 Difference]: With dead ends: 1572 [2020-08-22 18:58:37,623 INFO L226 Difference]: Without dead ends: 1073 [2020-08-22 18:58:37,625 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 18:58:37,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2020-08-22 18:58:37,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1071. [2020-08-22 18:58:37,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1071 states. [2020-08-22 18:58:37,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1308 transitions. [2020-08-22 18:58:37,752 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1308 transitions. Word has length 210 [2020-08-22 18:58:37,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:37,753 INFO L479 AbstractCegarLoop]: Abstraction has 1071 states and 1308 transitions. [2020-08-22 18:58:37,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:58:37,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1308 transitions. [2020-08-22 18:58:37,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-08-22 18:58:37,759 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:37,759 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] [2020-08-22 18:58:37,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 18:58:37,759 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:37,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:37,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1170821308, now seen corresponding path program 1 times [2020-08-22 18:58:37,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:37,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953499910] [2020-08-22 18:58:37,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:37,769 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:37,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:37,872 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 18:58:37,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953499910] [2020-08-22 18:58:37,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:37,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:58:37,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067919130] [2020-08-22 18:58:37,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:58:37,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:37,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:58:37,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:58:37,877 INFO L87 Difference]: Start difference. First operand 1071 states and 1308 transitions. Second operand 3 states. [2020-08-22 18:58:38,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:38,057 INFO L93 Difference]: Finished difference Result 2015 states and 2489 transitions. [2020-08-22 18:58:38,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:58:38,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-08-22 18:58:38,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:38,065 INFO L225 Difference]: With dead ends: 2015 [2020-08-22 18:58:38,066 INFO L226 Difference]: Without dead ends: 1089 [2020-08-22 18:58:38,069 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 18:58:38,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2020-08-22 18:58:38,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1079. [2020-08-22 18:58:38,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1079 states. [2020-08-22 18:58:38,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1312 transitions. [2020-08-22 18:58:38,196 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1312 transitions. Word has length 211 [2020-08-22 18:58:38,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:38,197 INFO L479 AbstractCegarLoop]: Abstraction has 1079 states and 1312 transitions. [2020-08-22 18:58:38,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:58:38,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1312 transitions. [2020-08-22 18:58:38,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-08-22 18:58:38,203 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:38,203 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] [2020-08-22 18:58:38,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 18:58:38,204 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:38,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:38,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1492439948, now seen corresponding path program 1 times [2020-08-22 18:58:38,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:38,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618458729] [2020-08-22 18:58:38,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:38,218 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:38,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:38,312 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 18:58:38,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618458729] [2020-08-22 18:58:38,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:38,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:58:38,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231980194] [2020-08-22 18:58:38,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:58:38,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:38,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:58:38,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:58:38,315 INFO L87 Difference]: Start difference. First operand 1079 states and 1312 transitions. Second operand 3 states. [2020-08-22 18:58:38,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:38,591 INFO L93 Difference]: Finished difference Result 2933 states and 3616 transitions. [2020-08-22 18:58:38,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:58:38,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2020-08-22 18:58:38,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:38,608 INFO L225 Difference]: With dead ends: 2933 [2020-08-22 18:58:38,608 INFO L226 Difference]: Without dead ends: 1999 [2020-08-22 18:58:38,613 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 18:58:38,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2020-08-22 18:58:39,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1997. [2020-08-22 18:58:39,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1997 states. [2020-08-22 18:58:39,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 2440 transitions. [2020-08-22 18:58:39,019 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 2440 transitions. Word has length 213 [2020-08-22 18:58:39,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:39,019 INFO L479 AbstractCegarLoop]: Abstraction has 1997 states and 2440 transitions. [2020-08-22 18:58:39,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:58:39,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 2440 transitions. [2020-08-22 18:58:39,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-08-22 18:58:39,028 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:39,029 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] [2020-08-22 18:58:39,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 18:58:39,030 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:39,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:39,030 INFO L82 PathProgramCache]: Analyzing trace with hash -193739890, now seen corresponding path program 1 times [2020-08-22 18:58:39,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:39,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [390939948] [2020-08-22 18:58:39,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:39,041 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:39,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:39,160 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 18:58:39,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [390939948] [2020-08-22 18:58:39,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:39,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:58:39,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254070316] [2020-08-22 18:58:39,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:58:39,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:39,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:58:39,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:58:39,163 INFO L87 Difference]: Start difference. First operand 1997 states and 2440 transitions. Second operand 3 states. [2020-08-22 18:58:39,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:39,443 INFO L93 Difference]: Finished difference Result 2948 states and 3610 transitions. [2020-08-22 18:58:39,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:58:39,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2020-08-22 18:58:39,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:39,462 INFO L225 Difference]: With dead ends: 2948 [2020-08-22 18:58:39,462 INFO L226 Difference]: Without dead ends: 2014 [2020-08-22 18:58:39,467 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 18:58:39,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2020-08-22 18:58:39,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2012. [2020-08-22 18:58:39,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2012 states. [2020-08-22 18:58:39,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 2446 transitions. [2020-08-22 18:58:39,770 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 2446 transitions. Word has length 213 [2020-08-22 18:58:39,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:39,772 INFO L479 AbstractCegarLoop]: Abstraction has 2012 states and 2446 transitions. [2020-08-22 18:58:39,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:58:39,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 2446 transitions. [2020-08-22 18:58:39,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-08-22 18:58:39,777 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:39,778 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] [2020-08-22 18:58:39,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 18:58:39,778 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:39,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:39,779 INFO L82 PathProgramCache]: Analyzing trace with hash -792504871, now seen corresponding path program 1 times [2020-08-22 18:58:39,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:39,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44756161] [2020-08-22 18:58:39,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:39,791 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:39,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:39,883 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 18:58:39,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44756161] [2020-08-22 18:58:39,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:39,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:58:39,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381846242] [2020-08-22 18:58:39,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:58:39,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:39,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:58:39,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:58:39,886 INFO L87 Difference]: Start difference. First operand 2012 states and 2446 transitions. Second operand 3 states. [2020-08-22 18:58:40,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:40,318 INFO L93 Difference]: Finished difference Result 3864 states and 4745 transitions. [2020-08-22 18:58:40,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:58:40,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-08-22 18:58:40,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:40,336 INFO L225 Difference]: With dead ends: 3864 [2020-08-22 18:58:40,336 INFO L226 Difference]: Without dead ends: 2927 [2020-08-22 18:58:40,340 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 18:58:40,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2020-08-22 18:58:40,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2927. [2020-08-22 18:58:40,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2927 states. [2020-08-22 18:58:40,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 3569 transitions. [2020-08-22 18:58:40,780 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 3569 transitions. Word has length 214 [2020-08-22 18:58:40,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:40,781 INFO L479 AbstractCegarLoop]: Abstraction has 2927 states and 3569 transitions. [2020-08-22 18:58:40,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:58:40,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 3569 transitions. [2020-08-22 18:58:40,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-08-22 18:58:40,788 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:40,789 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] [2020-08-22 18:58:40,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 18:58:40,789 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:40,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:40,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1362043361, now seen corresponding path program 1 times [2020-08-22 18:58:40,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:40,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045845434] [2020-08-22 18:58:40,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:40,798 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:40,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:40,919 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 18:58:40,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045845434] [2020-08-22 18:58:40,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:40,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:58:40,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395229357] [2020-08-22 18:58:40,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:58:40,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:40,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:58:40,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:58:40,923 INFO L87 Difference]: Start difference. First operand 2927 states and 3569 transitions. Second operand 3 states. [2020-08-22 18:58:41,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:41,505 INFO L93 Difference]: Finished difference Result 6369 states and 8021 transitions. [2020-08-22 18:58:41,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:58:41,506 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-08-22 18:58:41,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:41,526 INFO L225 Difference]: With dead ends: 6369 [2020-08-22 18:58:41,527 INFO L226 Difference]: Without dead ends: 3590 [2020-08-22 18:58:41,538 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 18:58:41,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2020-08-22 18:58:41,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3404. [2020-08-22 18:58:41,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3404 states. [2020-08-22 18:58:41,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 4085 transitions. [2020-08-22 18:58:41,872 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 4085 transitions. Word has length 224 [2020-08-22 18:58:41,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:41,873 INFO L479 AbstractCegarLoop]: Abstraction has 3404 states and 4085 transitions. [2020-08-22 18:58:41,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:58:41,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 4085 transitions. [2020-08-22 18:58:41,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-08-22 18:58:41,883 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:41,884 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] [2020-08-22 18:58:41,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 18:58:41,885 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:41,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:41,885 INFO L82 PathProgramCache]: Analyzing trace with hash -481557951, now seen corresponding path program 1 times [2020-08-22 18:58:41,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:41,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029447122] [2020-08-22 18:58:41,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:41,894 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:41,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:41,982 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 18:58:41,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029447122] [2020-08-22 18:58:41,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:41,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:58:41,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479373395] [2020-08-22 18:58:41,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:58:41,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:41,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:58:41,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:58:41,985 INFO L87 Difference]: Start difference. First operand 3404 states and 4085 transitions. Second operand 3 states. [2020-08-22 18:58:42,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:42,418 INFO L93 Difference]: Finished difference Result 6973 states and 8455 transitions. [2020-08-22 18:58:42,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:58:42,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-08-22 18:58:42,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:42,439 INFO L225 Difference]: With dead ends: 6973 [2020-08-22 18:58:42,439 INFO L226 Difference]: Without dead ends: 3729 [2020-08-22 18:58:42,450 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 18:58:42,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2020-08-22 18:58:42,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3617. [2020-08-22 18:58:42,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3617 states. [2020-08-22 18:58:42,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 4313 transitions. [2020-08-22 18:58:42,830 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 4313 transitions. Word has length 224 [2020-08-22 18:58:42,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:42,831 INFO L479 AbstractCegarLoop]: Abstraction has 3617 states and 4313 transitions. [2020-08-22 18:58:42,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:58:42,831 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 4313 transitions. [2020-08-22 18:58:42,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-08-22 18:58:42,845 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:42,846 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] [2020-08-22 18:58:42,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 18:58:42,847 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:42,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:42,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1724843027, now seen corresponding path program 1 times [2020-08-22 18:58:42,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:42,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961978957] [2020-08-22 18:58:42,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:42,857 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:42,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:42,990 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 18:58:42,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961978957] [2020-08-22 18:58:42,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:42,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:58:42,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576236994] [2020-08-22 18:58:42,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:58:42,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:42,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:58:42,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:58:42,995 INFO L87 Difference]: Start difference. First operand 3617 states and 4313 transitions. Second operand 3 states. [2020-08-22 18:58:43,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:43,478 INFO L93 Difference]: Finished difference Result 7074 states and 8479 transitions. [2020-08-22 18:58:43,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:58:43,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-08-22 18:58:43,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:43,505 INFO L225 Difference]: With dead ends: 7074 [2020-08-22 18:58:43,505 INFO L226 Difference]: Without dead ends: 4762 [2020-08-22 18:58:43,515 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 18:58:43,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4762 states. [2020-08-22 18:58:43,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4762 to 4762. [2020-08-22 18:58:43,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4762 states. [2020-08-22 18:58:43,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4762 states to 4762 states and 5688 transitions. [2020-08-22 18:58:43,957 INFO L78 Accepts]: Start accepts. Automaton has 4762 states and 5688 transitions. Word has length 239 [2020-08-22 18:58:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:43,957 INFO L479 AbstractCegarLoop]: Abstraction has 4762 states and 5688 transitions. [2020-08-22 18:58:43,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:58:43,958 INFO L276 IsEmpty]: Start isEmpty. Operand 4762 states and 5688 transitions. [2020-08-22 18:58:43,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-08-22 18:58:43,969 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:43,970 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] [2020-08-22 18:58:43,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 18:58:43,970 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:43,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:43,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1037157879, now seen corresponding path program 1 times [2020-08-22 18:58:43,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:43,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589397739] [2020-08-22 18:58:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:43,985 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:44,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:44,093 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 18:58:44,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589397739] [2020-08-22 18:58:44,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:44,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:58:44,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679013774] [2020-08-22 18:58:44,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:58:44,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:44,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:58:44,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:58:44,097 INFO L87 Difference]: Start difference. First operand 4762 states and 5688 transitions. Second operand 3 states. [2020-08-22 18:58:44,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:44,585 INFO L93 Difference]: Finished difference Result 9788 states and 11817 transitions. [2020-08-22 18:58:44,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:58:44,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2020-08-22 18:58:44,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:44,616 INFO L225 Difference]: With dead ends: 9788 [2020-08-22 18:58:44,616 INFO L226 Difference]: Without dead ends: 5186 [2020-08-22 18:58:44,632 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 18:58:44,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5186 states. [2020-08-22 18:58:45,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5186 to 5078. [2020-08-22 18:58:45,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5078 states. [2020-08-22 18:58:45,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 6024 transitions. [2020-08-22 18:58:45,205 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 6024 transitions. Word has length 247 [2020-08-22 18:58:45,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:45,206 INFO L479 AbstractCegarLoop]: Abstraction has 5078 states and 6024 transitions. [2020-08-22 18:58:45,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:58:45,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 6024 transitions. [2020-08-22 18:58:45,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-08-22 18:58:45,227 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:45,227 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] [2020-08-22 18:58:45,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 18:58:45,228 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:45,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:45,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1741885973, now seen corresponding path program 1 times [2020-08-22 18:58:45,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:45,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661328091] [2020-08-22 18:58:45,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:45,237 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:45,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:45,368 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 18:58:45,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661328091] [2020-08-22 18:58:45,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:45,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 18:58:45,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130859317] [2020-08-22 18:58:45,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 18:58:45,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:45,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 18:58:45,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:58:45,371 INFO L87 Difference]: Start difference. First operand 5078 states and 6024 transitions. Second operand 5 states. [2020-08-22 18:58:46,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:46,268 INFO L93 Difference]: Finished difference Result 12400 states and 15021 transitions. [2020-08-22 18:58:46,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:58:46,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 266 [2020-08-22 18:58:46,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:46,314 INFO L225 Difference]: With dead ends: 12400 [2020-08-22 18:58:46,315 INFO L226 Difference]: Without dead ends: 7482 [2020-08-22 18:58:46,332 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 18:58:46,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7482 states. [2020-08-22 18:58:46,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7482 to 5835. [2020-08-22 18:58:46,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5835 states. [2020-08-22 18:58:46,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 6908 transitions. [2020-08-22 18:58:46,821 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 6908 transitions. Word has length 266 [2020-08-22 18:58:46,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:46,822 INFO L479 AbstractCegarLoop]: Abstraction has 5835 states and 6908 transitions. [2020-08-22 18:58:46,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 18:58:46,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 6908 transitions. [2020-08-22 18:58:46,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-08-22 18:58:46,839 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:46,840 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] [2020-08-22 18:58:46,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-22 18:58:46,840 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:46,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:46,841 INFO L82 PathProgramCache]: Analyzing trace with hash -625071199, now seen corresponding path program 2 times [2020-08-22 18:58:46,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:46,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386243227] [2020-08-22 18:58:46,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:46,850 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:46,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:46,969 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 18:58:46,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386243227] [2020-08-22 18:58:46,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:46,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 18:58:46,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791721431] [2020-08-22 18:58:46,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 18:58:46,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:46,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 18:58:46,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:58:46,971 INFO L87 Difference]: Start difference. First operand 5835 states and 6908 transitions. Second operand 5 states. [2020-08-22 18:58:47,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:47,722 INFO L93 Difference]: Finished difference Result 9920 states and 11683 transitions. [2020-08-22 18:58:47,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:58:47,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 269 [2020-08-22 18:58:47,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:47,742 INFO L225 Difference]: With dead ends: 9920 [2020-08-22 18:58:47,742 INFO L226 Difference]: Without dead ends: 6999 [2020-08-22 18:58:47,753 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 18:58:47,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6999 states. [2020-08-22 18:58:48,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6999 to 5835. [2020-08-22 18:58:48,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5835 states. [2020-08-22 18:58:48,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 6908 transitions. [2020-08-22 18:58:48,212 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 6908 transitions. Word has length 269 [2020-08-22 18:58:48,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:48,213 INFO L479 AbstractCegarLoop]: Abstraction has 5835 states and 6908 transitions. [2020-08-22 18:58:48,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 18:58:48,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 6908 transitions. [2020-08-22 18:58:48,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-08-22 18:58:48,227 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:48,228 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] [2020-08-22 18:58:48,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-22 18:58:48,228 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:48,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:48,229 INFO L82 PathProgramCache]: Analyzing trace with hash -555087791, now seen corresponding path program 1 times [2020-08-22 18:58:48,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:48,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649505831] [2020-08-22 18:58:48,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:48,238 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:48,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:48,333 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 18:58:48,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649505831] [2020-08-22 18:58:48,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:48,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:58:48,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222419355] [2020-08-22 18:58:48,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:58:48,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:48,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:58:48,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:58:48,336 INFO L87 Difference]: Start difference. First operand 5835 states and 6908 transitions. Second operand 4 states. [2020-08-22 18:58:49,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:49,274 INFO L93 Difference]: Finished difference Result 12249 states and 14602 transitions. [2020-08-22 18:58:49,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:58:49,275 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 269 [2020-08-22 18:58:49,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:49,308 INFO L225 Difference]: With dead ends: 12249 [2020-08-22 18:58:49,308 INFO L226 Difference]: Without dead ends: 9324 [2020-08-22 18:58:49,325 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 18:58:49,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9324 states. [2020-08-22 18:58:49,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9324 to 5907. [2020-08-22 18:58:49,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5907 states. [2020-08-22 18:58:49,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 6996 transitions. [2020-08-22 18:58:49,895 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 6996 transitions. Word has length 269 [2020-08-22 18:58:49,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:49,896 INFO L479 AbstractCegarLoop]: Abstraction has 5907 states and 6996 transitions. [2020-08-22 18:58:49,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:58:49,896 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 6996 transitions. [2020-08-22 18:58:49,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-08-22 18:58:49,910 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:49,910 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] [2020-08-22 18:58:49,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-22 18:58:49,911 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:49,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:49,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1985209329, now seen corresponding path program 3 times [2020-08-22 18:58:49,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:49,912 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394891212] [2020-08-22 18:58:49,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:49,920 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:49,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:50,100 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 18:58:50,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394891212] [2020-08-22 18:58:50,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:50,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 18:58:50,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005121919] [2020-08-22 18:58:50,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 18:58:50,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:50,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 18:58:50,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:58:50,106 INFO L87 Difference]: Start difference. First operand 5907 states and 6996 transitions. Second operand 5 states. [2020-08-22 18:58:50,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:50,738 INFO L93 Difference]: Finished difference Result 9604 states and 11323 transitions. [2020-08-22 18:58:50,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:58:50,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 269 [2020-08-22 18:58:50,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:50,754 INFO L225 Difference]: With dead ends: 9604 [2020-08-22 18:58:50,755 INFO L226 Difference]: Without dead ends: 6611 [2020-08-22 18:58:50,763 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 18:58:50,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6611 states. [2020-08-22 18:58:51,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6611 to 5987. [2020-08-22 18:58:51,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5987 states. [2020-08-22 18:58:51,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5987 states to 5987 states and 7084 transitions. [2020-08-22 18:58:51,366 INFO L78 Accepts]: Start accepts. Automaton has 5987 states and 7084 transitions. Word has length 269 [2020-08-22 18:58:51,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:51,367 INFO L479 AbstractCegarLoop]: Abstraction has 5987 states and 7084 transitions. [2020-08-22 18:58:51,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 18:58:51,367 INFO L276 IsEmpty]: Start isEmpty. Operand 5987 states and 7084 transitions. [2020-08-22 18:58:51,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-08-22 18:58:51,379 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:51,379 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] [2020-08-22 18:58:51,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-22 18:58:51,380 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:51,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:51,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1391566917, now seen corresponding path program 1 times [2020-08-22 18:58:51,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:51,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395593229] [2020-08-22 18:58:51,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:51,388 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:51,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:58:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:58:51,473 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 18:58:51,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395593229] [2020-08-22 18:58:51,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:58:51,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:58:51,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412640002] [2020-08-22 18:58:51,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:58:51,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:58:51,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:58:51,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:58:51,476 INFO L87 Difference]: Start difference. First operand 5987 states and 7084 transitions. Second operand 3 states. [2020-08-22 18:58:51,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:58:51,887 INFO L93 Difference]: Finished difference Result 11173 states and 13253 transitions. [2020-08-22 18:58:51,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:58:51,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2020-08-22 18:58:51,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:58:51,901 INFO L225 Difference]: With dead ends: 11173 [2020-08-22 18:58:51,902 INFO L226 Difference]: Without dead ends: 6797 [2020-08-22 18:58:51,913 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 18:58:51,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6797 states. [2020-08-22 18:58:52,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6797 to 6797. [2020-08-22 18:58:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6797 states. [2020-08-22 18:58:52,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6797 states to 6797 states and 8036 transitions. [2020-08-22 18:58:52,370 INFO L78 Accepts]: Start accepts. Automaton has 6797 states and 8036 transitions. Word has length 271 [2020-08-22 18:58:52,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:58:52,371 INFO L479 AbstractCegarLoop]: Abstraction has 6797 states and 8036 transitions. [2020-08-22 18:58:52,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:58:52,371 INFO L276 IsEmpty]: Start isEmpty. Operand 6797 states and 8036 transitions. [2020-08-22 18:58:52,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-08-22 18:58:52,385 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:58:52,385 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] [2020-08-22 18:58:52,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-22 18:58:52,385 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:58:52,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:58:52,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1703791530, now seen corresponding path program 1 times [2020-08-22 18:58:52,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:58:52,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258451497] [2020-08-22 18:58:52,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:58:52,407 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:58:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:58:52,445 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:58:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:58:52,474 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:58:52,578 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:58:52,579 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:58:52,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-22 18:58:52,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:58:52 BoogieIcfgContainer [2020-08-22 18:58:52,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:58:52,617 INFO L168 Benchmark]: Toolchain (without parser) took 20404.45 ms. Allocated memory was 136.3 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 100.5 MB in the beginning and 101.1 MB in the end (delta: -651.0 kB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2020-08-22 18:58:52,617 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 136.3 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:58:52,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.66 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 176.1 MB in the end (delta: -75.8 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:58:52,619 INFO L168 Benchmark]: Boogie Preprocessor took 56.80 ms. Allocated memory is still 200.3 MB. Free memory was 176.1 MB in the beginning and 173.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:58:52,619 INFO L168 Benchmark]: RCFGBuilder took 910.54 ms. Allocated memory is still 200.3 MB. Free memory was 173.9 MB in the beginning and 109.7 MB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 7.1 GB. [2020-08-22 18:58:52,620 INFO L168 Benchmark]: TraceAbstraction took 18852.77 ms. Allocated memory was 200.3 MB in the beginning and 1.1 GB in the end (delta: 944.8 MB). Free memory was 109.0 MB in the beginning and 101.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 952.6 MB. Max. memory is 7.1 GB. [2020-08-22 18:58:52,623 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 136.3 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 578.66 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 176.1 MB in the end (delta: -75.8 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.80 ms. Allocated memory is still 200.3 MB. Free memory was 176.1 MB in the beginning and 173.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 910.54 ms. Allocated memory is still 200.3 MB. Free memory was 173.9 MB in the beginning and 109.7 MB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18852.77 ms. Allocated memory was 200.3 MB in the beginning and 1.1 GB in the end (delta: 944.8 MB). Free memory was 109.0 MB in the beginning and 101.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 952.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L548] int s ; [L552] s = 12292 [L553] CALL ssl3_connect(12292) [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 = 1; [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 ; [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 ; [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] 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 ; [L76] s__state = initial_state [L77] blastFlag = 0 [L78] tmp = __VERIFIER_nondet_int() [L79] cb = 0 [L80] ret = -1 [L81] skip = 0 [L82] tmp___0 = 0 [L83] COND TRUE s__info_callback != 0 [L84] cb = s__info_callback [L90] s__in_handshake ++ [L91] COND FALSE !(tmp___1 - 12288) [L97] COND TRUE 1 [L99] state = s__state [L100] COND TRUE s__state == 12292 [L202] s__new_session = 1 [L203] s__state = 4096 [L204] s__ctx__stats__sess_connect_renegotiate ++ [L209] s__server = 0 [L210] COND TRUE cb != 0 [L214] __cil_tmp55 = s__version - 65280 [L215] COND FALSE !(__cil_tmp55 != 768) [L220] s__type = 4096 [L221] COND FALSE !(s__init_buf___0 == 0) [L233] COND FALSE !(! tmp___4) [L237] COND FALSE !(! tmp___5) [L241] s__state = 4368 [L242] s__ctx__stats__sess_connect ++ [L243] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND TRUE s__state == 4368 [L247] s__shutdown = 0 [L248] ret = __VERIFIER_nondet_int() [L249] COND TRUE blastFlag == 0 [L250] blastFlag = 1 [L252] COND FALSE !(ret <= 0) [L255] s__state = 4384 [L256] s__init_num = 0 [L257] COND TRUE s__bbio != s__wbio [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND TRUE s__state == 4384 [L263] ret = __VERIFIER_nondet_int() [L264] COND TRUE blastFlag == 1 [L265] blastFlag = 2 [L267] COND FALSE !(ret <= 0) [L270] COND FALSE !(\read(s__hit)) [L273] s__state = 4400 [L275] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND TRUE s__state == 4400 [L279] COND FALSE !(s__s3__tmp__new_cipher__algorithms - 256) [L282] ret = __VERIFIER_nondet_int() [L283] COND TRUE blastFlag == 2 [L284] blastFlag = 3 [L286] COND FALSE !(ret <= 0) [L290] s__state = 4416 [L291] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND TRUE s__state == 4416 [L295] ret = __VERIFIER_nondet_int() [L296] COND TRUE blastFlag == 3 [L297] blastFlag = 4 [L299] COND FALSE !(ret <= 0) [L302] s__state = 4432 [L303] s__init_num = 0 [L304] COND FALSE !(! tmp___6) [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND FALSE !(s__state == 4416) [L136] COND FALSE !(s__state == 4417) [L139] COND TRUE s__state == 4432 [L311] ret = __VERIFIER_nondet_int() [L312] COND TRUE blastFlag == 4 [L543] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 383 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.7s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8517 SDtfs, 5172 SDslu, 8471 SDs, 0 SdLazy, 1979 SolverSat, 270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6797occurred 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: 6.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 7365 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...