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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:49:19,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:49:19,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:49:19,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:49:19,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:49:19,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:49:19,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:49:19,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:49:19,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:49:19,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:49:19,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:49:19,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:49:19,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:49:19,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:49:19,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:49:19,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:49:19,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:49:19,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:49:19,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:49:19,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:49:19,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:49:19,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:49:19,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:49:19,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:49:19,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:49:19,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:49:19,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:49:19,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:49:19,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:49:19,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:49:19,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:49:19,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:49:19,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:49:19,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:49:19,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:49:19,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:49:19,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:49:19,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:49:19,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:49:19,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:49:19,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:49:19,143 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:49:19,174 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:49:19,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:49:19,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:49:19,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:49:19,176 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:49:19,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:49:19,177 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:49:19,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:49:19,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:49:19,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:49:19,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:49:19,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:49:19,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:49:19,178 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:49:19,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:49:19,178 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:49:19,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:49:19,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:49:19,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:49:19,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:49:19,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:49:19,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:49:19,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:49:19,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:49:19,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:49:19,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:49:19,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:49:19,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:49:19,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:49:19,483 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:49:19,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:49:19,505 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:49:19,506 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:49:19,507 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:49:19,508 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-3.c [2019-10-14 23:49:19,585 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b1c0417f/b4009403f83447a58cac7b0ee2b3cfb5/FLAG8af4f91cc [2019-10-14 23:49:20,152 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:49:20,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-3.c [2019-10-14 23:49:20,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b1c0417f/b4009403f83447a58cac7b0ee2b3cfb5/FLAG8af4f91cc [2019-10-14 23:49:20,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b1c0417f/b4009403f83447a58cac7b0ee2b3cfb5 [2019-10-14 23:49:20,451 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:49:20,453 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:49:20,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:49:20,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:49:20,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:49:20,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:49:20" (1/1) ... [2019-10-14 23:49:20,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@464893c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:20, skipping insertion in model container [2019-10-14 23:49:20,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:49:20" (1/1) ... [2019-10-14 23:49:20,472 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:49:20,520 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:49:20,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:49:20,875 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:49:20,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:49:20,963 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:49:20,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:20 WrapperNode [2019-10-14 23:49:20,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:49:20,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:49:20,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:49:20,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:49:20,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:20" (1/1) ... [2019-10-14 23:49:20,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:20" (1/1) ... [2019-10-14 23:49:20,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:20" (1/1) ... [2019-10-14 23:49:20,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:20" (1/1) ... [2019-10-14 23:49:21,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:20" (1/1) ... [2019-10-14 23:49:21,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:20" (1/1) ... [2019-10-14 23:49:21,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:20" (1/1) ... [2019-10-14 23:49:21,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:49:21,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:49:21,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:49:21,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:49:21,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:49:21,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:49:21,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:49:21,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2019-10-14 23:49:21,095 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:49:21,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:49:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-14 23:49:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:49:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-14 23:49:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 23:49:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2019-10-14 23:49:21,097 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:49:21,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:49:21,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:49:21,303 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-14 23:49:21,884 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2019-10-14 23:49:21,885 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2019-10-14 23:49:21,901 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:49:21,901 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:49:21,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:49:21 BoogieIcfgContainer [2019-10-14 23:49:21,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:49:21,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:49:21,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:49:21,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:49:21,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:49:20" (1/3) ... [2019-10-14 23:49:21,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ce9531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:49:21, skipping insertion in model container [2019-10-14 23:49:21,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:49:20" (2/3) ... [2019-10-14 23:49:21,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ce9531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:49:21, skipping insertion in model container [2019-10-14 23:49:21,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:49:21" (3/3) ... [2019-10-14 23:49:21,922 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-3.c [2019-10-14 23:49:21,932 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:49:21,939 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:49:21,950 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:49:21,977 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:49:21,978 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:49:21,978 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:49:21,978 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:49:21,978 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:49:21,978 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:49:21,978 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:49:21,979 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:49:22,002 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2019-10-14 23:49:22,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-14 23:49:22,010 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:22,011 INFO L380 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] [2019-10-14 23:49:22,013 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:22,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:22,019 INFO L82 PathProgramCache]: Analyzing trace with hash 173387410, now seen corresponding path program 1 times [2019-10-14 23:49:22,026 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:22,026 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364053971] [2019-10-14 23:49:22,027 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:22,027 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:22,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:22,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:49:22,270 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364053971] [2019-10-14 23:49:22,271 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:22,272 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:22,272 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992121386] [2019-10-14 23:49:22,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:22,279 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:22,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:22,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:22,292 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 3 states. [2019-10-14 23:49:22,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:22,462 INFO L93 Difference]: Finished difference Result 377 states and 634 transitions. [2019-10-14 23:49:22,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:22,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-10-14 23:49:22,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:22,491 INFO L225 Difference]: With dead ends: 377 [2019-10-14 23:49:22,491 INFO L226 Difference]: Without dead ends: 220 [2019-10-14 23:49:22,499 INFO L600 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 [2019-10-14 23:49:22,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-10-14 23:49:22,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2019-10-14 23:49:22,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-10-14 23:49:22,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 326 transitions. [2019-10-14 23:49:22,570 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 326 transitions. Word has length 29 [2019-10-14 23:49:22,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:22,571 INFO L462 AbstractCegarLoop]: Abstraction has 220 states and 326 transitions. [2019-10-14 23:49:22,571 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:22,571 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 326 transitions. [2019-10-14 23:49:22,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-14 23:49:22,575 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:22,575 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 23:49:22,575 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:22,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:22,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1098416379, now seen corresponding path program 1 times [2019-10-14 23:49:22,576 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:22,577 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555214196] [2019-10-14 23:49:22,577 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:22,577 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:22,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:22,702 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:49:22,703 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555214196] [2019-10-14 23:49:22,703 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:22,704 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:22,704 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121547272] [2019-10-14 23:49:22,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:22,706 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:22,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:22,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:22,707 INFO L87 Difference]: Start difference. First operand 220 states and 326 transitions. Second operand 3 states. [2019-10-14 23:49:22,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:22,874 INFO L93 Difference]: Finished difference Result 472 states and 710 transitions. [2019-10-14 23:49:22,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:22,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-14 23:49:22,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:22,878 INFO L225 Difference]: With dead ends: 472 [2019-10-14 23:49:22,878 INFO L226 Difference]: Without dead ends: 264 [2019-10-14 23:49:22,881 INFO L600 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 [2019-10-14 23:49:22,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-10-14 23:49:22,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 254. [2019-10-14 23:49:22,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-10-14 23:49:22,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 370 transitions. [2019-10-14 23:49:22,914 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 370 transitions. Word has length 43 [2019-10-14 23:49:22,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:22,918 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 370 transitions. [2019-10-14 23:49:22,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:22,919 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 370 transitions. [2019-10-14 23:49:22,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-14 23:49:22,925 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:22,925 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:22,925 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:22,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:22,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1571737336, now seen corresponding path program 1 times [2019-10-14 23:49:22,926 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:22,926 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72305278] [2019-10-14 23:49:22,927 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:22,927 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:22,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:23,078 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-14 23:49:23,078 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72305278] [2019-10-14 23:49:23,079 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:23,079 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:23,079 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102264168] [2019-10-14 23:49:23,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:23,084 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:23,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:23,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:23,085 INFO L87 Difference]: Start difference. First operand 254 states and 370 transitions. Second operand 3 states. [2019-10-14 23:49:23,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:23,311 INFO L93 Difference]: Finished difference Result 598 states and 902 transitions. [2019-10-14 23:49:23,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:23,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-14 23:49:23,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:23,315 INFO L225 Difference]: With dead ends: 598 [2019-10-14 23:49:23,315 INFO L226 Difference]: Without dead ends: 354 [2019-10-14 23:49:23,317 INFO L600 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 [2019-10-14 23:49:23,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2019-10-14 23:49:23,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 336. [2019-10-14 23:49:23,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-10-14 23:49:23,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 470 transitions. [2019-10-14 23:49:23,338 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 470 transitions. Word has length 60 [2019-10-14 23:49:23,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:23,339 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 470 transitions. [2019-10-14 23:49:23,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:23,339 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 470 transitions. [2019-10-14 23:49:23,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-14 23:49:23,342 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:23,343 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:23,343 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:23,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:23,343 INFO L82 PathProgramCache]: Analyzing trace with hash -233700998, now seen corresponding path program 1 times [2019-10-14 23:49:23,344 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:23,344 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045438595] [2019-10-14 23:49:23,344 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:23,344 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:23,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:23,412 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-14 23:49:23,413 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045438595] [2019-10-14 23:49:23,413 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:23,413 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:23,413 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919454952] [2019-10-14 23:49:23,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:23,414 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:23,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:23,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:23,415 INFO L87 Difference]: Start difference. First operand 336 states and 470 transitions. Second operand 3 states. [2019-10-14 23:49:23,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:23,575 INFO L93 Difference]: Finished difference Result 708 states and 1005 transitions. [2019-10-14 23:49:23,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:23,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-14 23:49:23,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:23,579 INFO L225 Difference]: With dead ends: 708 [2019-10-14 23:49:23,580 INFO L226 Difference]: Without dead ends: 384 [2019-10-14 23:49:23,581 INFO L600 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 [2019-10-14 23:49:23,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2019-10-14 23:49:23,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 374. [2019-10-14 23:49:23,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2019-10-14 23:49:23,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 518 transitions. [2019-10-14 23:49:23,599 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 518 transitions. Word has length 60 [2019-10-14 23:49:23,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:23,600 INFO L462 AbstractCegarLoop]: Abstraction has 374 states and 518 transitions. [2019-10-14 23:49:23,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 518 transitions. [2019-10-14 23:49:23,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-14 23:49:23,604 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:23,604 INFO L380 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] [2019-10-14 23:49:23,605 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:23,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:23,605 INFO L82 PathProgramCache]: Analyzing trace with hash -343872958, now seen corresponding path program 1 times [2019-10-14 23:49:23,605 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:23,606 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741423769] [2019-10-14 23:49:23,606 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:23,606 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:23,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-14 23:49:23,691 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741423769] [2019-10-14 23:49:23,691 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:23,692 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:23,692 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589870087] [2019-10-14 23:49:23,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:23,694 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:23,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:23,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:23,695 INFO L87 Difference]: Start difference. First operand 374 states and 518 transitions. Second operand 3 states. [2019-10-14 23:49:23,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:23,887 INFO L93 Difference]: Finished difference Result 842 states and 1204 transitions. [2019-10-14 23:49:23,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:23,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2019-10-14 23:49:23,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:23,891 INFO L225 Difference]: With dead ends: 842 [2019-10-14 23:49:23,891 INFO L226 Difference]: Without dead ends: 478 [2019-10-14 23:49:23,892 INFO L600 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 [2019-10-14 23:49:23,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2019-10-14 23:49:23,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 452. [2019-10-14 23:49:23,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-10-14 23:49:23,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 652 transitions. [2019-10-14 23:49:23,910 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 652 transitions. Word has length 73 [2019-10-14 23:49:23,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:23,910 INFO L462 AbstractCegarLoop]: Abstraction has 452 states and 652 transitions. [2019-10-14 23:49:23,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:23,910 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 652 transitions. [2019-10-14 23:49:23,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-14 23:49:23,913 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:23,913 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2019-10-14 23:49:23,913 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:23,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:23,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1570407527, now seen corresponding path program 1 times [2019-10-14 23:49:23,914 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:23,914 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040341782] [2019-10-14 23:49:23,914 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:23,914 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:23,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-14 23:49:23,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040341782] [2019-10-14 23:49:23,969 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:23,969 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:23,970 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397968492] [2019-10-14 23:49:23,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:23,971 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:23,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:23,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:23,972 INFO L87 Difference]: Start difference. First operand 452 states and 652 transitions. Second operand 3 states. [2019-10-14 23:49:24,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:24,111 INFO L93 Difference]: Finished difference Result 940 states and 1365 transitions. [2019-10-14 23:49:24,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:24,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-10-14 23:49:24,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:24,120 INFO L225 Difference]: With dead ends: 940 [2019-10-14 23:49:24,120 INFO L226 Difference]: Without dead ends: 500 [2019-10-14 23:49:24,122 INFO L600 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 [2019-10-14 23:49:24,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2019-10-14 23:49:24,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 494. [2019-10-14 23:49:24,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2019-10-14 23:49:24,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 704 transitions. [2019-10-14 23:49:24,149 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 704 transitions. Word has length 77 [2019-10-14 23:49:24,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:24,151 INFO L462 AbstractCegarLoop]: Abstraction has 494 states and 704 transitions. [2019-10-14 23:49:24,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:24,151 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 704 transitions. [2019-10-14 23:49:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:49:24,154 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:24,154 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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] [2019-10-14 23:49:24,155 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:24,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:24,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1356861727, now seen corresponding path program 1 times [2019-10-14 23:49:24,155 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:24,155 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854615657] [2019-10-14 23:49:24,156 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:24,156 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:24,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:24,249 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-14 23:49:24,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854615657] [2019-10-14 23:49:24,250 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:24,250 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:24,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755141679] [2019-10-14 23:49:24,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:24,253 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:24,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:24,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:24,254 INFO L87 Difference]: Start difference. First operand 494 states and 704 transitions. Second operand 3 states. [2019-10-14 23:49:24,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:24,299 INFO L93 Difference]: Finished difference Result 976 states and 1397 transitions. [2019-10-14 23:49:24,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:24,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2019-10-14 23:49:24,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:24,304 INFO L225 Difference]: With dead ends: 976 [2019-10-14 23:49:24,305 INFO L226 Difference]: Without dead ends: 734 [2019-10-14 23:49:24,306 INFO L600 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 [2019-10-14 23:49:24,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2019-10-14 23:49:24,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 734. [2019-10-14 23:49:24,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2019-10-14 23:49:24,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1047 transitions. [2019-10-14 23:49:24,331 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1047 transitions. Word has length 97 [2019-10-14 23:49:24,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:24,332 INFO L462 AbstractCegarLoop]: Abstraction has 734 states and 1047 transitions. [2019-10-14 23:49:24,332 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:24,332 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1047 transitions. [2019-10-14 23:49:24,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-14 23:49:24,334 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:24,334 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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] [2019-10-14 23:49:24,334 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:24,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:24,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1774863991, now seen corresponding path program 1 times [2019-10-14 23:49:24,335 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:24,335 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914749929] [2019-10-14 23:49:24,335 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:24,335 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:24,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:24,425 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-10-14 23:49:24,426 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914749929] [2019-10-14 23:49:24,426 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:24,426 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:24,426 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178589618] [2019-10-14 23:49:24,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:24,427 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:24,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:24,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:24,428 INFO L87 Difference]: Start difference. First operand 734 states and 1047 transitions. Second operand 3 states. [2019-10-14 23:49:24,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:24,485 INFO L93 Difference]: Finished difference Result 976 states and 1394 transitions. [2019-10-14 23:49:24,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:24,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2019-10-14 23:49:24,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:24,491 INFO L225 Difference]: With dead ends: 976 [2019-10-14 23:49:24,492 INFO L226 Difference]: Without dead ends: 974 [2019-10-14 23:49:24,493 INFO L600 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 [2019-10-14 23:49:24,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2019-10-14 23:49:24,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 974. [2019-10-14 23:49:24,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 974 states. [2019-10-14 23:49:24,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1392 transitions. [2019-10-14 23:49:24,523 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1392 transitions. Word has length 99 [2019-10-14 23:49:24,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:24,523 INFO L462 AbstractCegarLoop]: Abstraction has 974 states and 1392 transitions. [2019-10-14 23:49:24,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:24,524 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1392 transitions. [2019-10-14 23:49:24,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-14 23:49:24,527 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:24,527 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:24,527 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:24,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:24,528 INFO L82 PathProgramCache]: Analyzing trace with hash 600728947, now seen corresponding path program 1 times [2019-10-14 23:49:24,528 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:24,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008872869] [2019-10-14 23:49:24,529 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:24,529 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:24,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:24,597 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-10-14 23:49:24,597 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008872869] [2019-10-14 23:49:24,598 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:24,598 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:24,598 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131267277] [2019-10-14 23:49:24,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:24,599 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:24,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:24,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:24,600 INFO L87 Difference]: Start difference. First operand 974 states and 1392 transitions. Second operand 3 states. [2019-10-14 23:49:24,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:24,814 INFO L93 Difference]: Finished difference Result 2140 states and 3108 transitions. [2019-10-14 23:49:24,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:24,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-14 23:49:24,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:24,822 INFO L225 Difference]: With dead ends: 2140 [2019-10-14 23:49:24,822 INFO L226 Difference]: Without dead ends: 1170 [2019-10-14 23:49:24,825 INFO L600 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 [2019-10-14 23:49:24,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2019-10-14 23:49:24,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1130. [2019-10-14 23:49:24,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1130 states. [2019-10-14 23:49:24,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1632 transitions. [2019-10-14 23:49:24,865 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1632 transitions. Word has length 154 [2019-10-14 23:49:24,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:24,865 INFO L462 AbstractCegarLoop]: Abstraction has 1130 states and 1632 transitions. [2019-10-14 23:49:24,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:24,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1632 transitions. [2019-10-14 23:49:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-14 23:49:24,870 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:24,870 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:24,870 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:24,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:24,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1176011842, now seen corresponding path program 1 times [2019-10-14 23:49:24,871 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:24,871 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377501513] [2019-10-14 23:49:24,872 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:24,872 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:24,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2019-10-14 23:49:24,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377501513] [2019-10-14 23:49:24,961 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:24,961 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:24,962 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245945181] [2019-10-14 23:49:24,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:24,962 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:24,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:24,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:24,963 INFO L87 Difference]: Start difference. First operand 1130 states and 1632 transitions. Second operand 3 states. [2019-10-14 23:49:25,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:25,103 INFO L93 Difference]: Finished difference Result 2354 states and 3378 transitions. [2019-10-14 23:49:25,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:25,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-14 23:49:25,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:25,111 INFO L225 Difference]: With dead ends: 2354 [2019-10-14 23:49:25,111 INFO L226 Difference]: Without dead ends: 1236 [2019-10-14 23:49:25,114 INFO L600 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 [2019-10-14 23:49:25,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2019-10-14 23:49:25,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1222. [2019-10-14 23:49:25,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1222 states. [2019-10-14 23:49:25,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1744 transitions. [2019-10-14 23:49:25,152 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1744 transitions. Word has length 190 [2019-10-14 23:49:25,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:25,152 INFO L462 AbstractCegarLoop]: Abstraction has 1222 states and 1744 transitions. [2019-10-14 23:49:25,152 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:25,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1744 transitions. [2019-10-14 23:49:25,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-14 23:49:25,157 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:25,158 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:25,158 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:25,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:25,158 INFO L82 PathProgramCache]: Analyzing trace with hash -717257595, now seen corresponding path program 1 times [2019-10-14 23:49:25,159 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:25,159 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032460710] [2019-10-14 23:49:25,159 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:25,159 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:25,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2019-10-14 23:49:25,242 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032460710] [2019-10-14 23:49:25,243 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:25,243 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:25,243 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787427570] [2019-10-14 23:49:25,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:25,244 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:25,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:25,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:25,245 INFO L87 Difference]: Start difference. First operand 1222 states and 1744 transitions. Second operand 3 states. [2019-10-14 23:49:25,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:25,408 INFO L93 Difference]: Finished difference Result 2544 states and 3620 transitions. [2019-10-14 23:49:25,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:25,409 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2019-10-14 23:49:25,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:25,416 INFO L225 Difference]: With dead ends: 2544 [2019-10-14 23:49:25,417 INFO L226 Difference]: Without dead ends: 1334 [2019-10-14 23:49:25,420 INFO L600 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 [2019-10-14 23:49:25,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2019-10-14 23:49:25,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1322. [2019-10-14 23:49:25,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1322 states. [2019-10-14 23:49:25,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1864 transitions. [2019-10-14 23:49:25,460 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1864 transitions. Word has length 211 [2019-10-14 23:49:25,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:25,461 INFO L462 AbstractCegarLoop]: Abstraction has 1322 states and 1864 transitions. [2019-10-14 23:49:25,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:25,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1864 transitions. [2019-10-14 23:49:25,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-14 23:49:25,467 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:25,468 INFO L380 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:25,468 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:25,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:25,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1079909240, now seen corresponding path program 1 times [2019-10-14 23:49:25,469 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:25,469 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615501253] [2019-10-14 23:49:25,469 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:25,469 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:25,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2019-10-14 23:49:25,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615501253] [2019-10-14 23:49:25,568 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:25,569 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:25,569 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144906894] [2019-10-14 23:49:25,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:25,570 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:25,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:25,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:25,570 INFO L87 Difference]: Start difference. First operand 1322 states and 1864 transitions. Second operand 3 states. [2019-10-14 23:49:25,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:25,718 INFO L93 Difference]: Finished difference Result 2752 states and 3872 transitions. [2019-10-14 23:49:25,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:25,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2019-10-14 23:49:25,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:25,726 INFO L225 Difference]: With dead ends: 2752 [2019-10-14 23:49:25,727 INFO L226 Difference]: Without dead ends: 1442 [2019-10-14 23:49:25,730 INFO L600 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 [2019-10-14 23:49:25,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2019-10-14 23:49:25,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1434. [2019-10-14 23:49:25,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1434 states. [2019-10-14 23:49:25,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1996 transitions. [2019-10-14 23:49:25,773 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1996 transitions. Word has length 235 [2019-10-14 23:49:25,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:25,774 INFO L462 AbstractCegarLoop]: Abstraction has 1434 states and 1996 transitions. [2019-10-14 23:49:25,774 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:25,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1996 transitions. [2019-10-14 23:49:25,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-14 23:49:25,782 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:25,782 INFO L380 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:25,782 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:25,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:25,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1213171786, now seen corresponding path program 1 times [2019-10-14 23:49:25,783 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:25,783 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915153774] [2019-10-14 23:49:25,784 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:25,784 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:25,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:25,919 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2019-10-14 23:49:25,920 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915153774] [2019-10-14 23:49:25,920 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:25,920 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:25,920 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175920216] [2019-10-14 23:49:25,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:25,921 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:25,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:25,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:25,922 INFO L87 Difference]: Start difference. First operand 1434 states and 1996 transitions. Second operand 3 states. [2019-10-14 23:49:26,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:26,086 INFO L93 Difference]: Finished difference Result 2992 states and 4172 transitions. [2019-10-14 23:49:26,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:26,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2019-10-14 23:49:26,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:26,095 INFO L225 Difference]: With dead ends: 2992 [2019-10-14 23:49:26,095 INFO L226 Difference]: Without dead ends: 1570 [2019-10-14 23:49:26,099 INFO L600 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 [2019-10-14 23:49:26,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2019-10-14 23:49:26,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1558. [2019-10-14 23:49:26,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1558 states. [2019-10-14 23:49:26,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2140 transitions. [2019-10-14 23:49:26,145 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2140 transitions. Word has length 235 [2019-10-14 23:49:26,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:26,146 INFO L462 AbstractCegarLoop]: Abstraction has 1558 states and 2140 transitions. [2019-10-14 23:49:26,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:26,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2140 transitions. [2019-10-14 23:49:26,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2019-10-14 23:49:26,151 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:26,152 INFO L380 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:26,152 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:26,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:26,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1569112328, now seen corresponding path program 1 times [2019-10-14 23:49:26,153 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:26,153 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806627645] [2019-10-14 23:49:26,153 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:26,153 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:26,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 588 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2019-10-14 23:49:26,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806627645] [2019-10-14 23:49:26,280 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:26,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:26,280 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691698136] [2019-10-14 23:49:26,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:26,281 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:26,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:26,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:26,282 INFO L87 Difference]: Start difference. First operand 1558 states and 2140 transitions. Second operand 3 states. [2019-10-14 23:49:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:26,382 INFO L93 Difference]: Finished difference Result 4646 states and 6384 transitions. [2019-10-14 23:49:26,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:26,383 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 265 [2019-10-14 23:49:26,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:26,399 INFO L225 Difference]: With dead ends: 4646 [2019-10-14 23:49:26,399 INFO L226 Difference]: Without dead ends: 3100 [2019-10-14 23:49:26,404 INFO L600 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 [2019-10-14 23:49:26,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3100 states. [2019-10-14 23:49:26,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3100 to 3098. [2019-10-14 23:49:26,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3098 states. [2019-10-14 23:49:26,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3098 states to 3098 states and 4255 transitions. [2019-10-14 23:49:26,488 INFO L78 Accepts]: Start accepts. Automaton has 3098 states and 4255 transitions. Word has length 265 [2019-10-14 23:49:26,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:26,489 INFO L462 AbstractCegarLoop]: Abstraction has 3098 states and 4255 transitions. [2019-10-14 23:49:26,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:26,489 INFO L276 IsEmpty]: Start isEmpty. Operand 3098 states and 4255 transitions. [2019-10-14 23:49:26,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2019-10-14 23:49:26,498 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:26,498 INFO L380 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:26,498 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:26,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:26,499 INFO L82 PathProgramCache]: Analyzing trace with hash 432773942, now seen corresponding path program 1 times [2019-10-14 23:49:26,499 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:26,499 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267607826] [2019-10-14 23:49:26,499 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:26,500 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:26,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:26,601 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 560 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2019-10-14 23:49:26,601 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267607826] [2019-10-14 23:49:26,602 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:26,602 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:26,602 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827869547] [2019-10-14 23:49:26,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:26,603 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:26,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:26,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:26,604 INFO L87 Difference]: Start difference. First operand 3098 states and 4255 transitions. Second operand 3 states. [2019-10-14 23:49:26,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:26,785 INFO L93 Difference]: Finished difference Result 6484 states and 8938 transitions. [2019-10-14 23:49:26,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:26,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 265 [2019-10-14 23:49:26,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:26,803 INFO L225 Difference]: With dead ends: 6484 [2019-10-14 23:49:26,803 INFO L226 Difference]: Without dead ends: 3398 [2019-10-14 23:49:26,811 INFO L600 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 [2019-10-14 23:49:26,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3398 states. [2019-10-14 23:49:26,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3398 to 3382. [2019-10-14 23:49:26,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3382 states. [2019-10-14 23:49:26,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 4579 transitions. [2019-10-14 23:49:26,924 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 4579 transitions. Word has length 265 [2019-10-14 23:49:26,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:26,925 INFO L462 AbstractCegarLoop]: Abstraction has 3382 states and 4579 transitions. [2019-10-14 23:49:26,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:26,926 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 4579 transitions. [2019-10-14 23:49:26,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2019-10-14 23:49:26,981 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:26,982 INFO L380 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:26,982 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:26,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:26,983 INFO L82 PathProgramCache]: Analyzing trace with hash -764797682, now seen corresponding path program 1 times [2019-10-14 23:49:26,983 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:26,983 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075044218] [2019-10-14 23:49:26,984 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:26,984 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:26,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2019-10-14 23:49:27,161 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075044218] [2019-10-14 23:49:27,165 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:27,165 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:27,165 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330570375] [2019-10-14 23:49:27,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:27,167 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:27,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:27,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:27,168 INFO L87 Difference]: Start difference. First operand 3382 states and 4579 transitions. Second operand 3 states. [2019-10-14 23:49:27,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:27,404 INFO L93 Difference]: Finished difference Result 6900 states and 9354 transitions. [2019-10-14 23:49:27,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:27,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 289 [2019-10-14 23:49:27,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:27,429 INFO L225 Difference]: With dead ends: 6900 [2019-10-14 23:49:27,430 INFO L226 Difference]: Without dead ends: 3530 [2019-10-14 23:49:27,440 INFO L600 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 [2019-10-14 23:49:27,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3530 states. [2019-10-14 23:49:27,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3530 to 3514. [2019-10-14 23:49:27,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3514 states. [2019-10-14 23:49:27,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3514 states to 3514 states and 4731 transitions. [2019-10-14 23:49:27,559 INFO L78 Accepts]: Start accepts. Automaton has 3514 states and 4731 transitions. Word has length 289 [2019-10-14 23:49:27,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:27,560 INFO L462 AbstractCegarLoop]: Abstraction has 3514 states and 4731 transitions. [2019-10-14 23:49:27,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:27,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3514 states and 4731 transitions. [2019-10-14 23:49:27,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-10-14 23:49:27,577 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:27,578 INFO L380 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:27,578 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:27,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:27,579 INFO L82 PathProgramCache]: Analyzing trace with hash 2053251468, now seen corresponding path program 1 times [2019-10-14 23:49:27,579 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:27,579 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740678087] [2019-10-14 23:49:27,580 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:27,580 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:27,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:27,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 542 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2019-10-14 23:49:27,795 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740678087] [2019-10-14 23:49:27,795 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:27,795 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:27,795 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290358759] [2019-10-14 23:49:27,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:27,796 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:27,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:27,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:27,797 INFO L87 Difference]: Start difference. First operand 3514 states and 4731 transitions. Second operand 3 states. [2019-10-14 23:49:27,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:27,992 INFO L93 Difference]: Finished difference Result 7416 states and 10118 transitions. [2019-10-14 23:49:27,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:27,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2019-10-14 23:49:27,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:28,013 INFO L225 Difference]: With dead ends: 7416 [2019-10-14 23:49:28,013 INFO L226 Difference]: Without dead ends: 3914 [2019-10-14 23:49:28,021 INFO L600 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 [2019-10-14 23:49:28,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3914 states. [2019-10-14 23:49:28,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3914 to 3826. [2019-10-14 23:49:28,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3826 states. [2019-10-14 23:49:28,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 5099 transitions. [2019-10-14 23:49:28,119 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 5099 transitions. Word has length 300 [2019-10-14 23:49:28,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:28,120 INFO L462 AbstractCegarLoop]: Abstraction has 3826 states and 5099 transitions. [2019-10-14 23:49:28,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:28,120 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 5099 transitions. [2019-10-14 23:49:28,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2019-10-14 23:49:28,131 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:28,131 INFO L380 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:28,132 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:28,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:28,133 INFO L82 PathProgramCache]: Analyzing trace with hash 816481962, now seen corresponding path program 1 times [2019-10-14 23:49:28,133 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:28,134 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620638915] [2019-10-14 23:49:28,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:28,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:28,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:28,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 595 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2019-10-14 23:49:28,273 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620638915] [2019-10-14 23:49:28,274 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:28,274 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:28,274 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563432208] [2019-10-14 23:49:28,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:28,275 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:28,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:28,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:28,276 INFO L87 Difference]: Start difference. First operand 3826 states and 5099 transitions. Second operand 3 states. [2019-10-14 23:49:28,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:28,510 INFO L93 Difference]: Finished difference Result 8048 states and 10662 transitions. [2019-10-14 23:49:28,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:28,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 314 [2019-10-14 23:49:28,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:28,546 INFO L225 Difference]: With dead ends: 8048 [2019-10-14 23:49:28,549 INFO L226 Difference]: Without dead ends: 4234 [2019-10-14 23:49:28,557 INFO L600 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 [2019-10-14 23:49:28,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2019-10-14 23:49:28,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 3946. [2019-10-14 23:49:28,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3946 states. [2019-10-14 23:49:28,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3946 states to 3946 states and 5243 transitions. [2019-10-14 23:49:28,650 INFO L78 Accepts]: Start accepts. Automaton has 3946 states and 5243 transitions. Word has length 314 [2019-10-14 23:49:28,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:28,651 INFO L462 AbstractCegarLoop]: Abstraction has 3946 states and 5243 transitions. [2019-10-14 23:49:28,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:28,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3946 states and 5243 transitions. [2019-10-14 23:49:28,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-10-14 23:49:28,662 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:28,662 INFO L380 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:28,663 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:28,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:28,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1006853977, now seen corresponding path program 1 times [2019-10-14 23:49:28,663 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:28,663 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938696736] [2019-10-14 23:49:28,664 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:28,664 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:28,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:28,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2019-10-14 23:49:28,841 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938696736] [2019-10-14 23:49:28,842 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:28,842 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:28,842 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890742576] [2019-10-14 23:49:28,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:28,845 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:28,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:28,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:28,846 INFO L87 Difference]: Start difference. First operand 3946 states and 5243 transitions. Second operand 3 states. [2019-10-14 23:49:28,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:28,953 INFO L93 Difference]: Finished difference Result 11310 states and 15105 transitions. [2019-10-14 23:49:28,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:28,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 315 [2019-10-14 23:49:28,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:28,977 INFO L225 Difference]: With dead ends: 11310 [2019-10-14 23:49:28,978 INFO L226 Difference]: Without dead ends: 7376 [2019-10-14 23:49:28,990 INFO L600 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 [2019-10-14 23:49:29,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7376 states. [2019-10-14 23:49:29,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7376 to 7374. [2019-10-14 23:49:29,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7374 states. [2019-10-14 23:49:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7374 states to 7374 states and 9853 transitions. [2019-10-14 23:49:29,176 INFO L78 Accepts]: Start accepts. Automaton has 7374 states and 9853 transitions. Word has length 315 [2019-10-14 23:49:29,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:29,177 INFO L462 AbstractCegarLoop]: Abstraction has 7374 states and 9853 transitions. [2019-10-14 23:49:29,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:29,177 INFO L276 IsEmpty]: Start isEmpty. Operand 7374 states and 9853 transitions. [2019-10-14 23:49:29,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2019-10-14 23:49:29,193 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:29,194 INFO L380 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:29,194 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:29,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:29,195 INFO L82 PathProgramCache]: Analyzing trace with hash 999089455, now seen corresponding path program 1 times [2019-10-14 23:49:29,195 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:29,195 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876577774] [2019-10-14 23:49:29,195 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:29,196 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:29,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:29,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 711 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2019-10-14 23:49:29,414 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876577774] [2019-10-14 23:49:29,414 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:29,414 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:29,415 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061348686] [2019-10-14 23:49:29,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:29,416 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:29,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:29,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:29,417 INFO L87 Difference]: Start difference. First operand 7374 states and 9853 transitions. Second operand 3 states. [2019-10-14 23:49:29,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:29,642 INFO L93 Difference]: Finished difference Result 14744 states and 19682 transitions. [2019-10-14 23:49:29,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:29,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 316 [2019-10-14 23:49:29,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:29,660 INFO L225 Difference]: With dead ends: 14744 [2019-10-14 23:49:29,661 INFO L226 Difference]: Without dead ends: 7382 [2019-10-14 23:49:29,676 INFO L600 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 [2019-10-14 23:49:29,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7382 states. [2019-10-14 23:49:29,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7382 to 7350. [2019-10-14 23:49:29,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7350 states. [2019-10-14 23:49:29,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7350 states to 7350 states and 9573 transitions. [2019-10-14 23:49:29,824 INFO L78 Accepts]: Start accepts. Automaton has 7350 states and 9573 transitions. Word has length 316 [2019-10-14 23:49:29,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:29,825 INFO L462 AbstractCegarLoop]: Abstraction has 7350 states and 9573 transitions. [2019-10-14 23:49:29,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:29,825 INFO L276 IsEmpty]: Start isEmpty. Operand 7350 states and 9573 transitions. [2019-10-14 23:49:29,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2019-10-14 23:49:29,840 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:29,840 INFO L380 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:29,841 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:29,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:29,841 INFO L82 PathProgramCache]: Analyzing trace with hash -901585188, now seen corresponding path program 1 times [2019-10-14 23:49:29,841 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:29,841 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181039702] [2019-10-14 23:49:29,842 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:29,842 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:29,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:30,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 766 proven. 12 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2019-10-14 23:49:30,036 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181039702] [2019-10-14 23:49:30,037 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840206731] [2019-10-14 23:49:30,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:49:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:30,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-14 23:49:30,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:49:30,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 1244 trivial. 0 not checked. [2019-10-14 23:49:30,353 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:49:30,353 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2019-10-14 23:49:30,353 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478640728] [2019-10-14 23:49:30,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:49:30,354 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:30,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:49:30,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:49:30,356 INFO L87 Difference]: Start difference. First operand 7350 states and 9573 transitions. Second operand 5 states. [2019-10-14 23:49:30,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:30,721 INFO L93 Difference]: Finished difference Result 14866 states and 19371 transitions. [2019-10-14 23:49:30,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:49:30,721 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 339 [2019-10-14 23:49:30,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:30,738 INFO L225 Difference]: With dead ends: 14866 [2019-10-14 23:49:30,739 INFO L226 Difference]: Without dead ends: 7500 [2019-10-14 23:49:30,754 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:49:30,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7500 states. [2019-10-14 23:49:30,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7500 to 7356. [2019-10-14 23:49:30,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7356 states. [2019-10-14 23:49:30,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7356 states to 7356 states and 9581 transitions. [2019-10-14 23:49:30,959 INFO L78 Accepts]: Start accepts. Automaton has 7356 states and 9581 transitions. Word has length 339 [2019-10-14 23:49:30,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:30,960 INFO L462 AbstractCegarLoop]: Abstraction has 7356 states and 9581 transitions. [2019-10-14 23:49:30,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:49:30,960 INFO L276 IsEmpty]: Start isEmpty. Operand 7356 states and 9581 transitions. [2019-10-14 23:49:30,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2019-10-14 23:49:30,976 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:30,976 INFO L380 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:31,182 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:49:31,183 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:31,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:31,183 INFO L82 PathProgramCache]: Analyzing trace with hash 998396082, now seen corresponding path program 1 times [2019-10-14 23:49:31,183 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:31,184 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021131793] [2019-10-14 23:49:31,184 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:31,184 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:31,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:31,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2019-10-14 23:49:31,452 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021131793] [2019-10-14 23:49:31,453 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112703973] [2019-10-14 23:49:31,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:49:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:31,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:49:31,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:49:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2019-10-14 23:49:31,701 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:49:31,701 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-10-14 23:49:31,701 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499586371] [2019-10-14 23:49:31,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:49:31,703 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:31,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:49:31,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:49:31,703 INFO L87 Difference]: Start difference. First operand 7356 states and 9581 transitions. Second operand 4 states. [2019-10-14 23:49:32,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:32,230 INFO L93 Difference]: Finished difference Result 14624 states and 19043 transitions. [2019-10-14 23:49:32,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:49:32,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 352 [2019-10-14 23:49:32,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:32,262 INFO L225 Difference]: With dead ends: 14624 [2019-10-14 23:49:32,262 INFO L226 Difference]: Without dead ends: 11034 [2019-10-14 23:49:32,277 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:49:32,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11034 states. [2019-10-14 23:49:32,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11034 to 8460. [2019-10-14 23:49:32,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8460 states. [2019-10-14 23:49:32,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8460 states to 8460 states and 11077 transitions. [2019-10-14 23:49:32,517 INFO L78 Accepts]: Start accepts. Automaton has 8460 states and 11077 transitions. Word has length 352 [2019-10-14 23:49:32,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:32,518 INFO L462 AbstractCegarLoop]: Abstraction has 8460 states and 11077 transitions. [2019-10-14 23:49:32,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:49:32,519 INFO L276 IsEmpty]: Start isEmpty. Operand 8460 states and 11077 transitions. [2019-10-14 23:49:32,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2019-10-14 23:49:32,534 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:32,534 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:32,739 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:49:32,740 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:32,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:32,740 INFO L82 PathProgramCache]: Analyzing trace with hash -2002133556, now seen corresponding path program 2 times [2019-10-14 23:49:32,740 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:32,740 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541032972] [2019-10-14 23:49:32,741 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:32,741 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:32,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:32,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 843 proven. 5 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2019-10-14 23:49:32,963 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541032972] [2019-10-14 23:49:32,963 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657521961] [2019-10-14 23:49:32,964 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:49:33,096 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-14 23:49:33,096 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-14 23:49:33,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:49:33,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:49:33,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 636 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2019-10-14 23:49:33,208 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:49:33,208 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-10-14 23:49:33,208 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323750102] [2019-10-14 23:49:33,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:33,210 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:33,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:33,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:49:33,210 INFO L87 Difference]: Start difference. First operand 8460 states and 11077 transitions. Second operand 3 states. [2019-10-14 23:49:33,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:33,424 INFO L93 Difference]: Finished difference Result 16374 states and 21042 transitions. [2019-10-14 23:49:33,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:33,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 365 [2019-10-14 23:49:33,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:33,441 INFO L225 Difference]: With dead ends: 16374 [2019-10-14 23:49:33,441 INFO L226 Difference]: Without dead ends: 7932 [2019-10-14 23:49:33,458 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:49:33,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7932 states. [2019-10-14 23:49:33,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7932 to 7684. [2019-10-14 23:49:33,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7684 states. [2019-10-14 23:49:33,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7684 states to 7684 states and 9645 transitions. [2019-10-14 23:49:33,601 INFO L78 Accepts]: Start accepts. Automaton has 7684 states and 9645 transitions. Word has length 365 [2019-10-14 23:49:33,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:33,602 INFO L462 AbstractCegarLoop]: Abstraction has 7684 states and 9645 transitions. [2019-10-14 23:49:33,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:33,602 INFO L276 IsEmpty]: Start isEmpty. Operand 7684 states and 9645 transitions. [2019-10-14 23:49:33,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2019-10-14 23:49:33,612 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:33,613 INFO L380 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:33,818 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:49:33,819 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:33,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:33,820 INFO L82 PathProgramCache]: Analyzing trace with hash 776946245, now seen corresponding path program 1 times [2019-10-14 23:49:33,820 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:33,820 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694625578] [2019-10-14 23:49:33,820 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:33,821 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:33,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:34,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2019-10-14 23:49:34,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694625578] [2019-10-14 23:49:34,172 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150042034] [2019-10-14 23:49:34,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:49:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:34,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:49:34,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:49:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2019-10-14 23:49:34,455 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:49:34,455 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-10-14 23:49:34,456 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618300912] [2019-10-14 23:49:34,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:49:34,460 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:34,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:49:34,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:49:34,461 INFO L87 Difference]: Start difference. First operand 7684 states and 9645 transitions. Second operand 4 states. [2019-10-14 23:49:34,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:34,913 INFO L93 Difference]: Finished difference Result 17152 states and 21441 transitions. [2019-10-14 23:49:34,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:49:34,914 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 379 [2019-10-14 23:49:34,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:34,937 INFO L225 Difference]: With dead ends: 17152 [2019-10-14 23:49:34,937 INFO L226 Difference]: Without dead ends: 9478 [2019-10-14 23:49:34,953 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:49:34,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9478 states. [2019-10-14 23:49:35,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9478 to 7985. [2019-10-14 23:49:35,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7985 states. [2019-10-14 23:49:35,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 9973 transitions. [2019-10-14 23:49:35,108 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 9973 transitions. Word has length 379 [2019-10-14 23:49:35,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:35,109 INFO L462 AbstractCegarLoop]: Abstraction has 7985 states and 9973 transitions. [2019-10-14 23:49:35,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:49:35,109 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 9973 transitions. [2019-10-14 23:49:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2019-10-14 23:49:35,123 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:35,123 INFO L380 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:35,329 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:49:35,330 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:35,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:35,330 INFO L82 PathProgramCache]: Analyzing trace with hash -885260259, now seen corresponding path program 1 times [2019-10-14 23:49:35,331 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:35,331 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413184192] [2019-10-14 23:49:35,331 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:35,331 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:35,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:35,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2019-10-14 23:49:35,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413184192] [2019-10-14 23:49:35,602 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:49:35,602 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:49:35,602 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095416604] [2019-10-14 23:49:35,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:35,603 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:35,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:35,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:49:35,604 INFO L87 Difference]: Start difference. First operand 7985 states and 9973 transitions. Second operand 3 states. [2019-10-14 23:49:35,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:35,827 INFO L93 Difference]: Finished difference Result 15351 states and 18826 transitions. [2019-10-14 23:49:35,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:35,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 418 [2019-10-14 23:49:35,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:35,836 INFO L225 Difference]: With dead ends: 15351 [2019-10-14 23:49:35,836 INFO L226 Difference]: Without dead ends: 3759 [2019-10-14 23:49:35,846 INFO L600 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 [2019-10-14 23:49:35,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2019-10-14 23:49:35,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3524. [2019-10-14 23:49:35,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3524 states. [2019-10-14 23:49:35,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 4353 transitions. [2019-10-14 23:49:35,904 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 4353 transitions. Word has length 418 [2019-10-14 23:49:35,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:35,905 INFO L462 AbstractCegarLoop]: Abstraction has 3524 states and 4353 transitions. [2019-10-14 23:49:35,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:35,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 4353 transitions. [2019-10-14 23:49:35,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2019-10-14 23:49:35,913 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:35,914 INFO L380 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 15, 15, 13, 13, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:35,914 INFO L410 AbstractCegarLoop]: === Iteration 26 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:35,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:35,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1596843861, now seen corresponding path program 1 times [2019-10-14 23:49:35,915 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:35,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350601133] [2019-10-14 23:49:35,915 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:35,915 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:35,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:36,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1571 proven. 14 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2019-10-14 23:49:36,142 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350601133] [2019-10-14 23:49:36,142 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368271911] [2019-10-14 23:49:36,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:49:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:36,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:49:36,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:49:36,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2019-10-14 23:49:36,691 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:49:36,692 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-10-14 23:49:36,692 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363781827] [2019-10-14 23:49:36,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:49:36,693 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:36,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:49:36,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:49:36,693 INFO L87 Difference]: Start difference. First operand 3524 states and 4353 transitions. Second operand 3 states. [2019-10-14 23:49:36,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:36,727 INFO L93 Difference]: Finished difference Result 3600 states and 4449 transitions. [2019-10-14 23:49:36,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:49:36,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 502 [2019-10-14 23:49:36,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:36,735 INFO L225 Difference]: With dead ends: 3600 [2019-10-14 23:49:36,736 INFO L226 Difference]: Without dead ends: 3523 [2019-10-14 23:49:36,737 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:49:36,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3523 states. [2019-10-14 23:49:36,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3523 to 3449. [2019-10-14 23:49:36,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3449 states. [2019-10-14 23:49:36,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3449 states to 3449 states and 4260 transitions. [2019-10-14 23:49:36,789 INFO L78 Accepts]: Start accepts. Automaton has 3449 states and 4260 transitions. Word has length 502 [2019-10-14 23:49:36,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:36,789 INFO L462 AbstractCegarLoop]: Abstraction has 3449 states and 4260 transitions. [2019-10-14 23:49:36,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:49:36,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3449 states and 4260 transitions. [2019-10-14 23:49:36,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2019-10-14 23:49:36,799 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:49:36,800 INFO L380 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:49:37,005 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:49:37,006 INFO L410 AbstractCegarLoop]: === Iteration 27 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:49:37,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:49:37,007 INFO L82 PathProgramCache]: Analyzing trace with hash -234514290, now seen corresponding path program 1 times [2019-10-14 23:49:37,007 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:49:37,007 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821336815] [2019-10-14 23:49:37,007 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:37,007 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:49:37,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:49:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:37,337 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2019-10-14 23:49:37,338 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821336815] [2019-10-14 23:49:37,338 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223733996] [2019-10-14 23:49:37,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:49:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:49:37,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:49:37,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:49:37,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2019-10-14 23:49:37,687 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:49:37,687 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-10-14 23:49:37,687 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812637883] [2019-10-14 23:49:37,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:49:37,688 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:49:37,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:49:37,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:49:37,689 INFO L87 Difference]: Start difference. First operand 3449 states and 4260 transitions. Second operand 4 states. [2019-10-14 23:49:37,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:49:37,881 INFO L93 Difference]: Finished difference Result 3947 states and 4887 transitions. [2019-10-14 23:49:37,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:49:37,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 614 [2019-10-14 23:49:37,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:49:37,883 INFO L225 Difference]: With dead ends: 3947 [2019-10-14 23:49:37,883 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:49:37,888 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:49:37,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:49:37,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:49:37,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:49:37,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:49:37,890 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 614 [2019-10-14 23:49:37,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:49:37,890 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:49:37,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:49:37,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:49:37,891 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:49:38,097 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:49:38,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:49:39,036 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 102 [2019-10-14 23:49:40,488 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2019-10-14 23:49:40,492 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-14 23:49:40,492 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:49:40,492 INFO L446 ceAbstractionStarter]: At program point L564(lines 107 565) the Hoare annotation is: true [2019-10-14 23:49:40,492 INFO L443 ceAbstractionStarter]: For program point L201(lines 201 514) no Hoare annotation was computed. [2019-10-14 23:49:40,492 INFO L443 ceAbstractionStarter]: For program point L168(lines 168 525) no Hoare annotation was computed. [2019-10-14 23:49:40,493 INFO L443 ceAbstractionStarter]: For program point L135(lines 135 536) no Hoare annotation was computed. [2019-10-14 23:49:40,493 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2019-10-14 23:49:40,493 INFO L439 ceAbstractionStarter]: At program point L202(lines 198 515) the Hoare annotation is: (let ((.cse0 (<= 4560 ssl3_connect_~s__state~0)) (.cse2 (<= ssl3_connect_~s__state~0 4560)) (.cse1 (= ssl3_connect_~s__hit~0 0))) (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and (<= ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse0 .cse1 .cse2 (<= 4560 ssl3_connect_~s__s3__tmp__next_state___0~0)) (and (<= ssl3_connect_~blastFlag~0 2) .cse0 .cse2 (not .cse1)))) [2019-10-14 23:49:40,493 INFO L439 ceAbstractionStarter]: At program point L136(lines 132 537) the Hoare annotation is: (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and (<= ssl3_connect_~blastFlag~0 2) (<= 4352 ssl3_connect_~s__state~0) (<= ssl3_connect_~s__state~0 4560))) [2019-10-14 23:49:40,493 INFO L443 ceAbstractionStarter]: For program point L103(lines 103 105) no Hoare annotation was computed. [2019-10-14 23:49:40,493 INFO L443 ceAbstractionStarter]: For program point L236(lines 236 252) no Hoare annotation was computed. [2019-10-14 23:49:40,493 INFO L443 ceAbstractionStarter]: For program point L236-2(lines 211 509) no Hoare annotation was computed. [2019-10-14 23:49:40,494 INFO L443 ceAbstractionStarter]: For program point L468(lines 468 480) no Hoare annotation was computed. [2019-10-14 23:49:40,494 INFO L443 ceAbstractionStarter]: For program point L435(lines 435 449) no Hoare annotation was computed. [2019-10-14 23:49:40,494 INFO L443 ceAbstractionStarter]: For program point L435-1(lines 435 449) no Hoare annotation was computed. [2019-10-14 23:49:40,494 INFO L443 ceAbstractionStarter]: For program point L468-2(lines 468 480) no Hoare annotation was computed. [2019-10-14 23:49:40,494 INFO L443 ceAbstractionStarter]: For program point L336(lines 336 339) no Hoare annotation was computed. [2019-10-14 23:49:40,494 INFO L443 ceAbstractionStarter]: For program point L270(lines 270 272) no Hoare annotation was computed. [2019-10-14 23:49:40,495 INFO L443 ceAbstractionStarter]: For program point L204(lines 204 513) no Hoare annotation was computed. [2019-10-14 23:49:40,495 INFO L443 ceAbstractionStarter]: For program point L270-2(lines 211 509) no Hoare annotation was computed. [2019-10-14 23:49:40,495 INFO L443 ceAbstractionStarter]: For program point L171(lines 171 524) no Hoare annotation was computed. [2019-10-14 23:49:40,495 INFO L443 ceAbstractionStarter]: For program point L138(lines 138 535) no Hoare annotation was computed. [2019-10-14 23:49:40,495 INFO L443 ceAbstractionStarter]: For program point L502(lines 502 504) no Hoare annotation was computed. [2019-10-14 23:49:40,495 INFO L439 ceAbstractionStarter]: At program point L205(lines 204 513) the Hoare annotation is: (let ((.cse0 (<= ssl3_connect_~s__state~0 4352)) (.cse1 (<= 4352 ssl3_connect_~s__state~0)) (.cse2 (= ssl3_connect_~s__hit~0 0))) (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and (<= ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse0 .cse1 .cse2 (<= 4560 ssl3_connect_~s__s3__tmp__next_state___0~0)) (and (<= ssl3_connect_~blastFlag~0 2) (<= ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse0 .cse1 (not .cse2)))) [2019-10-14 23:49:40,496 INFO L439 ceAbstractionStarter]: At program point L172(lines 162 527) the Hoare annotation is: (let ((.cse0 (<= 4432 ssl3_connect_~s__state~0)) (.cse1 (<= ssl3_connect_~s__state~0 4560)) (.cse2 (= ssl3_connect_~s__hit~0 0))) (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and .cse0 (<= ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1 .cse2) (and .cse0 (<= ssl3_connect_~blastFlag~0 4) .cse1 .cse2))) [2019-10-14 23:49:40,496 INFO L443 ceAbstractionStarter]: For program point L569(lines 569 571) no Hoare annotation was computed. [2019-10-14 23:49:40,496 INFO L443 ceAbstractionStarter]: For program point L569-2(lines 569 571) no Hoare annotation was computed. [2019-10-14 23:49:40,496 INFO L443 ceAbstractionStarter]: For program point L371(lines 371 373) no Hoare annotation was computed. [2019-10-14 23:49:40,496 INFO L443 ceAbstractionStarter]: For program point L405(lines 405 407) no Hoare annotation was computed. [2019-10-14 23:49:40,496 INFO L443 ceAbstractionStarter]: For program point L207(lines 207 512) no Hoare annotation was computed. [2019-10-14 23:49:40,496 INFO L443 ceAbstractionStarter]: For program point L174(lines 174 523) no Hoare annotation was computed. [2019-10-14 23:49:40,496 INFO L443 ceAbstractionStarter]: For program point L141(lines 141 534) no Hoare annotation was computed. [2019-10-14 23:49:40,497 INFO L443 ceAbstractionStarter]: For program point L108-1(lines 85 575) no Hoare annotation was computed. [2019-10-14 23:49:40,497 INFO L443 ceAbstractionStarter]: For program point L439(lines 439 445) no Hoare annotation was computed. [2019-10-14 23:49:40,497 INFO L446 ceAbstractionStarter]: At program point L208(lines 207 512) the Hoare annotation is: true [2019-10-14 23:49:40,497 INFO L439 ceAbstractionStarter]: At program point L142(lines 138 535) the Hoare annotation is: (let ((.cse0 (<= 4352 ssl3_connect_~s__state~0)) (.cse1 (= ssl3_connect_~s__hit~0 0)) (.cse2 (<= ssl3_connect_~s__state~0 4560))) (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and (<= ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse0 (<= ssl3_connect_~blastFlag~0 4) .cse1 .cse2) (and (<= ssl3_connect_~blastFlag~0 2) .cse0 .cse1 .cse2))) [2019-10-14 23:49:40,497 INFO L443 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2019-10-14 23:49:40,497 INFO L443 ceAbstractionStarter]: For program point L242(lines 242 245) no Hoare annotation was computed. [2019-10-14 23:49:40,497 INFO L443 ceAbstractionStarter]: For program point L474(lines 474 477) no Hoare annotation was computed. [2019-10-14 23:49:40,498 INFO L446 ceAbstractionStarter]: At program point L210(lines 209 512) the Hoare annotation is: true [2019-10-14 23:49:40,498 INFO L443 ceAbstractionStarter]: For program point L177(lines 177 522) no Hoare annotation was computed. [2019-10-14 23:49:40,498 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 533) no Hoare annotation was computed. [2019-10-14 23:49:40,498 INFO L443 ceAbstractionStarter]: For program point L111(lines 111 544) no Hoare annotation was computed. [2019-10-14 23:49:40,498 INFO L443 ceAbstractionStarter]: For program point L310(lines 310 320) no Hoare annotation was computed. [2019-10-14 23:49:40,498 INFO L443 ceAbstractionStarter]: For program point L310-2(lines 310 320) no Hoare annotation was computed. [2019-10-14 23:49:40,498 INFO L439 ceAbstractionStarter]: At program point L178(lines 174 523) the Hoare annotation is: (let ((.cse0 (<= 4432 ssl3_connect_~s__state~0)) (.cse1 (= ssl3_connect_~s__hit~0 0)) (.cse2 (<= ssl3_connect_~s__state~0 4560))) (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and .cse0 (<= ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1 .cse2) (and .cse0 (<= ssl3_connect_~blastFlag~0 4) .cse1 .cse2))) [2019-10-14 23:49:40,498 INFO L439 ceAbstractionStarter]: At program point L112(lines 111 544) the Hoare annotation is: (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and (<= ssl3_connect_~blastFlag~0 0) (<= 12292 ssl3_connect_~s__state~0))) [2019-10-14 23:49:40,498 INFO L443 ceAbstractionStarter]: For program point L344(lines 344 346) no Hoare annotation was computed. [2019-10-14 23:49:40,499 INFO L439 ceAbstractionStarter]: At program point L510(lines 108 563) the Hoare annotation is: (let ((.cse1 (= ssl3_connect_~s__hit~0 0))) (let ((.cse9 (not .cse1)) (.cse5 (= ssl3_connect_~s__state~0 4512)) (.cse7 (<= 4560 ssl3_connect_~s__state~0)) (.cse8 (<= ssl3_connect_~s__state~0 4560)) (.cse12 (<= ssl3_connect_~s__state~0 3)) (.cse2 (= ssl3_connect_~s__state~0 4480)) (.cse13 (= 4464 ssl3_connect_~s__state~0)) (.cse14 (= ssl3_connect_~s__state~0 4528)) (.cse6 (<= ssl3_connect_~blastFlag~0 2)) (.cse16 (= 4400 ssl3_connect_~s__state~0)) (.cse3 (<= ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse10 (<= ssl3_connect_~s__state~0 4352)) (.cse11 (<= 4352 ssl3_connect_~s__state~0)) (.cse15 (<= 4560 ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse4 (= ssl3_connect_~s__state~0 4496)) (.cse0 (<= ssl3_connect_~blastFlag~0 4)) (.cse17 (= 4448 ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse1) (and .cse3 .cse5 .cse1) (and .cse6 .cse7 .cse8 .cse9) (and .cse6 (<= ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse10 .cse11 .cse9) (and .cse5 .cse0 .cse1) (and .cse12 .cse6 .cse1) (and .cse3 .cse13 .cse1) (and .cse6 .cse5) (and .cse3 .cse14 .cse1) (and .cse3 .cse7 .cse1 .cse8 .cse15) (and (<= ssl3_connect_~blastFlag~0 0) (= ssl3_connect_~s__state~0 4368)) (and .cse12 .cse3) (and .cse6 (= 4384 ssl3_connect_~s__state~0)) (and .cse3 .cse1 .cse2) (and .cse13 .cse0 .cse1) (and .cse3 .cse0 .cse16 .cse1) (and .cse6 .cse14) (and (= ssl3_connect_~s__state~0 4432) .cse0 .cse1) (and .cse14 .cse0 .cse1) (and .cse3 .cse1 .cse17) (and .cse6 .cse16 .cse1) (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and .cse3 .cse10 .cse11 .cse1 .cse15) (and .cse4 .cse0 .cse1) (and .cse0 .cse1 (= 4416 ssl3_connect_~s__state~0)) (and .cse0 .cse1 .cse17)))) [2019-10-14 23:49:40,499 INFO L443 ceAbstractionStarter]: For program point L411(lines 411 415) no Hoare annotation was computed. [2019-10-14 23:49:40,499 INFO L439 ceAbstractionStarter]: At program point L345(lines 85 575) the Hoare annotation is: (not (<= 12292 |ssl3_connect_#in~initial_state|)) [2019-10-14 23:49:40,499 INFO L443 ceAbstractionStarter]: For program point L411-2(lines 211 509) no Hoare annotation was computed. [2019-10-14 23:49:40,499 INFO L443 ceAbstractionStarter]: For program point L180(lines 180 521) no Hoare annotation was computed. [2019-10-14 23:49:40,500 INFO L443 ceAbstractionStarter]: For program point L147(lines 147 532) no Hoare annotation was computed. [2019-10-14 23:49:40,500 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 543) no Hoare annotation was computed. [2019-10-14 23:49:40,500 INFO L443 ceAbstractionStarter]: For program point L247(lines 247 250) no Hoare annotation was computed. [2019-10-14 23:49:40,500 INFO L439 ceAbstractionStarter]: At program point L148(lines 144 533) the Hoare annotation is: (or (and (<= 4352 ssl3_connect_~s__state~0) (<= ssl3_connect_~blastFlag~0 4) (= ssl3_connect_~s__hit~0 0) (<= ssl3_connect_~s__state~0 4560)) (not (<= 12292 |ssl3_connect_#in~initial_state|))) [2019-10-14 23:49:40,500 INFO L443 ceAbstractionStarter]: For program point L545(lines 545 561) no Hoare annotation was computed. [2019-10-14 23:49:40,500 INFO L443 ceAbstractionStarter]: For program point L380(lines 380 382) no Hoare annotation was computed. [2019-10-14 23:49:40,500 INFO L443 ceAbstractionStarter]: For program point L347(lines 347 349) no Hoare annotation was computed. [2019-10-14 23:49:40,500 INFO L443 ceAbstractionStarter]: For program point L314(lines 314 316) no Hoare annotation was computed. [2019-10-14 23:49:40,500 INFO L443 ceAbstractionStarter]: For program point L281(lines 281 283) no Hoare annotation was computed. [2019-10-14 23:49:40,501 INFO L443 ceAbstractionStarter]: For program point L314-2(lines 312 320) no Hoare annotation was computed. [2019-10-14 23:49:40,501 INFO L443 ceAbstractionStarter]: For program point L546(lines 546 560) no Hoare annotation was computed. [2019-10-14 23:49:40,501 INFO L439 ceAbstractionStarter]: At program point L216(lines 114 543) the Hoare annotation is: (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (<= ssl3_connect_~blastFlag~0 0)) [2019-10-14 23:49:40,501 INFO L443 ceAbstractionStarter]: For program point L183(lines 183 520) no Hoare annotation was computed. [2019-10-14 23:49:40,501 INFO L443 ceAbstractionStarter]: For program point L150(lines 150 531) no Hoare annotation was computed. [2019-10-14 23:49:40,501 INFO L443 ceAbstractionStarter]: For program point L117(lines 117 542) no Hoare annotation was computed. [2019-10-14 23:49:40,501 INFO L446 ceAbstractionStarter]: At program point ssl3_connectENTRY(lines 11 576) the Hoare annotation is: true [2019-10-14 23:49:40,502 INFO L443 ceAbstractionStarter]: For program point L547(lines 547 552) no Hoare annotation was computed. [2019-10-14 23:49:40,502 INFO L443 ceAbstractionStarter]: For program point L547-2(lines 546 560) no Hoare annotation was computed. [2019-10-14 23:49:40,502 INFO L439 ceAbstractionStarter]: At program point L184(lines 180 521) the Hoare annotation is: (let ((.cse0 (<= 4432 ssl3_connect_~s__state~0)) (.cse1 (= ssl3_connect_~s__hit~0 0)) (.cse2 (<= ssl3_connect_~s__state~0 4560))) (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and .cse0 (<= ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1 .cse2) (and .cse0 (<= ssl3_connect_~blastFlag~0 4) .cse1 .cse2))) [2019-10-14 23:49:40,502 INFO L443 ceAbstractionStarter]: For program point L549(lines 549 551) no Hoare annotation was computed. [2019-10-14 23:49:40,502 INFO L443 ceAbstractionStarter]: For program point L384(lines 384 389) no Hoare annotation was computed. [2019-10-14 23:49:40,502 INFO L443 ceAbstractionStarter]: For program point L384-2(lines 384 389) no Hoare annotation was computed. [2019-10-14 23:49:40,502 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 519) no Hoare annotation was computed. [2019-10-14 23:49:40,503 INFO L443 ceAbstractionStarter]: For program point L153(lines 153 530) no Hoare annotation was computed. [2019-10-14 23:49:40,503 INFO L443 ceAbstractionStarter]: For program point L120(lines 120 541) no Hoare annotation was computed. [2019-10-14 23:49:40,503 INFO L439 ceAbstractionStarter]: At program point L154(lines 150 531) the Hoare annotation is: (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and (<= 4432 ssl3_connect_~s__state~0) (<= ssl3_connect_~blastFlag~0 4) (<= ssl3_connect_~s__state~0 4560) (= ssl3_connect_~s__hit~0 0))) [2019-10-14 23:49:40,503 INFO L443 ceAbstractionStarter]: For program point L485-1(lines 485 487) no Hoare annotation was computed. [2019-10-14 23:49:40,503 INFO L443 ceAbstractionStarter]: For program point L221(lines 221 223) no Hoare annotation was computed. [2019-10-14 23:49:40,503 INFO L443 ceAbstractionStarter]: For program point L221-2(lines 221 223) no Hoare annotation was computed. [2019-10-14 23:49:40,503 INFO L443 ceAbstractionStarter]: For program point L420(lines 420 423) no Hoare annotation was computed. [2019-10-14 23:49:40,503 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 518) no Hoare annotation was computed. [2019-10-14 23:49:40,503 INFO L443 ceAbstractionStarter]: For program point L156(lines 156 529) no Hoare annotation was computed. [2019-10-14 23:49:40,504 INFO L443 ceAbstractionStarter]: For program point L123(lines 123 540) no Hoare annotation was computed. [2019-10-14 23:49:40,504 INFO L443 ceAbstractionStarter]: For program point L289(lines 289 295) no Hoare annotation was computed. [2019-10-14 23:49:40,504 INFO L439 ceAbstractionStarter]: At program point L190(lines 186 519) the Hoare annotation is: (let ((.cse0 (<= 4432 ssl3_connect_~s__state~0)) (.cse2 (= ssl3_connect_~s__hit~0 0)) (.cse1 (<= ssl3_connect_~s__state~0 4560))) (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and .cse0 (<= ssl3_connect_~blastFlag~0 2) .cse1) (and .cse0 (<= ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2 .cse1) (and .cse0 (<= ssl3_connect_~blastFlag~0 4) .cse2 .cse1))) [2019-10-14 23:49:40,504 INFO L443 ceAbstractionStarter]: For program point L554(lines 554 558) no Hoare annotation was computed. [2019-10-14 23:49:40,504 INFO L443 ceAbstractionStarter]: For program point L455(lines 455 457) no Hoare annotation was computed. [2019-10-14 23:49:40,504 INFO L443 ceAbstractionStarter]: For program point L356(lines 356 358) no Hoare annotation was computed. [2019-10-14 23:49:40,504 INFO L443 ceAbstractionStarter]: For program point ssl3_connectEXIT(lines 11 576) no Hoare annotation was computed. [2019-10-14 23:49:40,504 INFO L443 ceAbstractionStarter]: For program point L258(lines 258 261) no Hoare annotation was computed. [2019-10-14 23:49:40,505 INFO L443 ceAbstractionStarter]: For program point L192(lines 192 517) no Hoare annotation was computed. [2019-10-14 23:49:40,505 INFO L443 ceAbstractionStarter]: For program point L159(lines 159 528) no Hoare annotation was computed. [2019-10-14 23:49:40,505 INFO L443 ceAbstractionStarter]: For program point L126(lines 126 539) no Hoare annotation was computed. [2019-10-14 23:49:40,505 INFO L443 ceAbstractionStarter]: For program point ssl3_connectFINAL(lines 11 576) no Hoare annotation was computed. [2019-10-14 23:49:40,505 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 294) no Hoare annotation was computed. [2019-10-14 23:49:40,505 INFO L443 ceAbstractionStarter]: For program point L226(lines 226 229) no Hoare annotation was computed. [2019-10-14 23:49:40,505 INFO L443 ceAbstractionStarter]: For program point L292-2(lines 211 509) no Hoare annotation was computed. [2019-10-14 23:49:40,505 INFO L439 ceAbstractionStarter]: At program point L160(lines 156 529) the Hoare annotation is: (let ((.cse0 (<= 4432 ssl3_connect_~s__state~0)) (.cse1 (= ssl3_connect_~s__hit~0 0)) (.cse2 (<= ssl3_connect_~s__state~0 4560))) (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and .cse0 (<= ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1 .cse2) (and .cse0 (<= ssl3_connect_~blastFlag~0 4) .cse1 .cse2))) [2019-10-14 23:49:40,506 INFO L443 ceAbstractionStarter]: For program point L94(lines 94 100) no Hoare annotation was computed. [2019-10-14 23:49:40,506 INFO L443 ceAbstractionStarter]: For program point L491(lines 491 493) no Hoare annotation was computed. [2019-10-14 23:49:40,506 INFO L443 ceAbstractionStarter]: For program point L458(lines 458 462) no Hoare annotation was computed. [2019-10-14 23:49:40,506 INFO L443 ceAbstractionStarter]: For program point L491-2(lines 491 493) no Hoare annotation was computed. [2019-10-14 23:49:40,506 INFO L443 ceAbstractionStarter]: For program point L458-2(lines 458 462) no Hoare annotation was computed. [2019-10-14 23:49:40,506 INFO L443 ceAbstractionStarter]: For program point L359(lines 359 363) no Hoare annotation was computed. [2019-10-14 23:49:40,506 INFO L443 ceAbstractionStarter]: For program point L359-2(lines 359 363) no Hoare annotation was computed. [2019-10-14 23:49:40,507 INFO L443 ceAbstractionStarter]: For program point ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION(line 573) no Hoare annotation was computed. [2019-10-14 23:49:40,507 INFO L443 ceAbstractionStarter]: For program point L195(lines 195 516) no Hoare annotation was computed. [2019-10-14 23:49:40,507 INFO L443 ceAbstractionStarter]: For program point L162(lines 162 527) no Hoare annotation was computed. [2019-10-14 23:49:40,507 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 538) no Hoare annotation was computed. [2019-10-14 23:49:40,507 INFO L443 ceAbstractionStarter]: For program point L328(lines 328 330) no Hoare annotation was computed. [2019-10-14 23:49:40,507 INFO L443 ceAbstractionStarter]: For program point L328-2(lines 211 509) no Hoare annotation was computed. [2019-10-14 23:49:40,507 INFO L439 ceAbstractionStarter]: At program point L196(lines 192 517) the Hoare annotation is: (let ((.cse0 (<= 4432 ssl3_connect_~s__state~0)) (.cse2 (= ssl3_connect_~s__hit~0 0)) (.cse1 (<= ssl3_connect_~s__state~0 4560))) (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and .cse0 (<= ssl3_connect_~blastFlag~0 2) .cse1) (and .cse0 (<= ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2 .cse1) (and .cse0 (<= ssl3_connect_~blastFlag~0 4) .cse2 .cse1))) [2019-10-14 23:49:40,508 INFO L439 ceAbstractionStarter]: At program point L130(lines 126 539) the Hoare annotation is: (or (not (<= 12292 |ssl3_connect_#in~initial_state|)) (and (<= ssl3_connect_~blastFlag~0 0) (<= 4352 ssl3_connect_~s__state~0) (<= ssl3_connect_~s__state~0 4560))) [2019-10-14 23:49:40,508 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 99) no Hoare annotation was computed. [2019-10-14 23:49:40,508 INFO L443 ceAbstractionStarter]: For program point L97-2(lines 94 100) no Hoare annotation was computed. [2019-10-14 23:49:40,508 INFO L443 ceAbstractionStarter]: For program point L428(lines 428 430) no Hoare annotation was computed. [2019-10-14 23:49:40,508 INFO L443 ceAbstractionStarter]: For program point L395(lines 395 397) no Hoare annotation was computed. [2019-10-14 23:49:40,508 INFO L443 ceAbstractionStarter]: For program point L198(lines 198 515) no Hoare annotation was computed. [2019-10-14 23:49:40,508 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 526) no Hoare annotation was computed. [2019-10-14 23:49:40,508 INFO L443 ceAbstractionStarter]: For program point L132(lines 132 537) no Hoare annotation was computed. [2019-10-14 23:49:40,509 INFO L443 ceAbstractionStarter]: For program point L497(lines 497 499) no Hoare annotation was computed. [2019-10-14 23:49:40,509 INFO L443 ceAbstractionStarter]: For program point L497-2(lines 497 499) no Hoare annotation was computed. [2019-10-14 23:49:40,509 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 303) no Hoare annotation was computed. [2019-10-14 23:49:40,509 INFO L443 ceAbstractionStarter]: For program point L299-2(lines 299 303) no Hoare annotation was computed. [2019-10-14 23:49:40,509 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:49:40,509 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:49:40,509 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:49:40,509 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:49:40,509 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 577 587) the Hoare annotation is: true [2019-10-14 23:49:40,510 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 577 587) no Hoare annotation was computed. [2019-10-14 23:49:40,510 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 577 587) no Hoare annotation was computed. [2019-10-14 23:49:40,510 INFO L439 ceAbstractionStarter]: At program point L583(line 583) the Hoare annotation is: (<= 12292 main_~s~0) [2019-10-14 23:49:40,510 INFO L443 ceAbstractionStarter]: For program point L583-1(line 583) no Hoare annotation was computed. [2019-10-14 23:49:40,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:49:40 BoogieIcfgContainer [2019-10-14 23:49:40,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:49:40,536 INFO L168 Benchmark]: Toolchain (without parser) took 20082.91 ms. Allocated memory was 138.4 MB in the beginning and 1.0 GB in the end (delta: 890.2 MB). Free memory was 102.1 MB in the beginning and 671.4 MB in the end (delta: -569.2 MB). Peak memory consumption was 928.1 MB. Max. memory is 7.1 GB. [2019-10-14 23:49:40,536 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 138.4 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-14 23:49:40,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 510.55 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 177.8 MB in the end (delta: -75.7 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:49:40,538 INFO L168 Benchmark]: Boogie Preprocessor took 74.12 ms. Allocated memory is still 202.4 MB. Free memory was 177.8 MB in the beginning and 174.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-10-14 23:49:40,538 INFO L168 Benchmark]: RCFGBuilder took 864.31 ms. Allocated memory is still 202.4 MB. Free memory was 174.9 MB in the beginning and 128.0 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:49:40,539 INFO L168 Benchmark]: TraceAbstraction took 18629.40 ms. Allocated memory was 202.4 MB in the beginning and 1.0 GB in the end (delta: 826.3 MB). Free memory was 127.1 MB in the beginning and 671.4 MB in the end (delta: -544.3 MB). Peak memory consumption was 889.1 MB. Max. memory is 7.1 GB. [2019-10-14 23:49:40,542 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 138.4 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 510.55 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 177.8 MB in the end (delta: -75.7 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.12 ms. Allocated memory is still 202.4 MB. Free memory was 177.8 MB in the beginning and 174.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 864.31 ms. Allocated memory is still 202.4 MB. Free memory was 174.9 MB in the beginning and 128.0 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18629.40 ms. Allocated memory was 202.4 MB in the beginning and 1.0 GB in the end (delta: 826.3 MB). Free memory was 127.1 MB in the beginning and 671.4 MB in the end (delta: -544.3 MB). Peak memory consumption was 889.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 573]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: (!(12292 <= \old(initial_state)) || (((4432 <= s__state && s__s3__tmp__next_state___0 <= 4560) && s__state <= 4560) && s__hit == 0)) || (((4432 <= s__state && blastFlag <= 4) && s__state <= 4560) && s__hit == 0) - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: (!(12292 <= \old(initial_state)) || ((((s__s3__tmp__next_state___0 <= 4560 && 4560 <= s__state) && s__hit == 0) && s__state <= 4560) && 4560 <= s__s3__tmp__next_state___0)) || (((blastFlag <= 2 && 4560 <= s__state) && s__state <= 4560) && !(s__hit == 0)) - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: (!(12292 <= \old(initial_state)) || (((4432 <= s__state && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && s__state <= 4560)) || (((4432 <= s__state && blastFlag <= 4) && s__hit == 0) && s__state <= 4560) - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: !(12292 <= \old(initial_state)) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: (!(12292 <= \old(initial_state)) || ((((s__s3__tmp__next_state___0 <= 4560 && 4352 <= s__state) && blastFlag <= 4) && s__hit == 0) && s__state <= 4560)) || (((blastFlag <= 2 && 4352 <= s__state) && s__hit == 0) && s__state <= 4560) - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: ((!(12292 <= \old(initial_state)) || ((4432 <= s__state && blastFlag <= 2) && s__state <= 4560)) || (((4432 <= s__state && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && s__state <= 4560)) || (((4432 <= s__state && blastFlag <= 4) && s__hit == 0) && s__state <= 4560) - InvariantResult [Line: 204]: Loop Invariant Derived loop invariant: (!(12292 <= \old(initial_state)) || ((((s__s3__tmp__next_state___0 <= 4560 && s__state <= 4352) && 4352 <= s__state) && s__hit == 0) && 4560 <= s__s3__tmp__next_state___0)) || ((((blastFlag <= 2 && s__s3__tmp__next_state___0 <= 3) && s__state <= 4352) && 4352 <= s__state) && !(s__hit == 0)) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: !(12292 <= \old(initial_state)) || ((blastFlag <= 0 && 4352 <= s__state) && s__state <= 4560) - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: !(12292 <= \old(initial_state)) || blastFlag <= 0 - InvariantResult [Line: 180]: Loop Invariant Derived loop invariant: (!(12292 <= \old(initial_state)) || (((4432 <= s__state && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && s__state <= 4560)) || (((4432 <= s__state && blastFlag <= 4) && s__hit == 0) && s__state <= 4560) - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: !(12292 <= \old(initial_state)) || (blastFlag <= 0 && 12292 <= s__state) - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: !(12292 <= \old(initial_state)) || (((4432 <= s__state && blastFlag <= 4) && s__state <= 4560) && s__hit == 0) - InvariantResult [Line: 207]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: (((4352 <= s__state && blastFlag <= 4) && s__hit == 0) && s__state <= 4560) || !(12292 <= \old(initial_state)) - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((blastFlag <= 4 && s__hit == 0) && s__state == 4480) || ((s__s3__tmp__next_state___0 <= 4560 && s__state == 4496) && s__hit == 0)) || ((s__s3__tmp__next_state___0 <= 4560 && s__state == 4512) && s__hit == 0)) || (((blastFlag <= 2 && 4560 <= s__state) && s__state <= 4560) && !(s__hit == 0))) || ((((blastFlag <= 2 && s__s3__tmp__next_state___0 <= 3) && s__state <= 4352) && 4352 <= s__state) && !(s__hit == 0))) || ((s__state == 4512 && blastFlag <= 4) && s__hit == 0)) || ((s__state <= 3 && blastFlag <= 2) && s__hit == 0)) || ((s__s3__tmp__next_state___0 <= 4560 && 4464 == s__state) && s__hit == 0)) || (blastFlag <= 2 && s__state == 4512)) || ((s__s3__tmp__next_state___0 <= 4560 && s__state == 4528) && s__hit == 0)) || ((((s__s3__tmp__next_state___0 <= 4560 && 4560 <= s__state) && s__hit == 0) && s__state <= 4560) && 4560 <= s__s3__tmp__next_state___0)) || (blastFlag <= 0 && s__state == 4368)) || (s__state <= 3 && s__s3__tmp__next_state___0 <= 4560)) || (blastFlag <= 2 && 4384 == s__state)) || ((s__s3__tmp__next_state___0 <= 4560 && s__hit == 0) && s__state == 4480)) || ((4464 == s__state && blastFlag <= 4) && s__hit == 0)) || (((s__s3__tmp__next_state___0 <= 4560 && blastFlag <= 4) && 4400 == s__state) && s__hit == 0)) || (blastFlag <= 2 && s__state == 4528)) || ((s__state == 4432 && blastFlag <= 4) && s__hit == 0)) || ((s__state == 4528 && blastFlag <= 4) && s__hit == 0)) || ((s__s3__tmp__next_state___0 <= 4560 && s__hit == 0) && 4448 == s__state)) || ((blastFlag <= 2 && 4400 == s__state) && s__hit == 0)) || !(12292 <= \old(initial_state))) || ((((s__s3__tmp__next_state___0 <= 4560 && s__state <= 4352) && 4352 <= s__state) && s__hit == 0) && 4560 <= s__s3__tmp__next_state___0)) || ((s__state == 4496 && blastFlag <= 4) && s__hit == 0)) || ((blastFlag <= 4 && s__hit == 0) && 4416 == s__state)) || ((blastFlag <= 4 && s__hit == 0) && 4448 == s__state) - InvariantResult [Line: 186]: Loop Invariant Derived loop invariant: ((!(12292 <= \old(initial_state)) || ((4432 <= s__state && blastFlag <= 2) && s__state <= 4560)) || (((4432 <= s__state && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && s__state <= 4560)) || (((4432 <= s__state && blastFlag <= 4) && s__hit == 0) && s__state <= 4560) - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: !(12292 <= \old(initial_state)) || ((blastFlag <= 2 && 4352 <= s__state) && s__state <= 4560) - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: (!(12292 <= \old(initial_state)) || (((4432 <= s__state && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) && s__state <= 4560)) || (((4432 <= s__state && blastFlag <= 4) && s__hit == 0) && s__state <= 4560) - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 136 locations, 1 error locations. Result: SAFE, OverallTime: 18.5s, OverallIterations: 27, TraceHistogramMax: 21, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, HoareTripleCheckerStatistics: 5438 SDtfs, 1928 SDslu, 3156 SDs, 0 SdLazy, 2637 SolverSat, 476 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2693 GetRequests, 2651 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8460occurred in iteration=22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 27 MinimizatonAttempts, 5368 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 26 PreInvPairs, 240 NumberOfFragments, 690 HoareAnnotationTreeSize, 26 FomulaSimplifications, 21559 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 26 FomulaSimplificationsInter, 2257 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 9147 NumberOfCodeBlocks, 9147 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 9114 ConstructedInterpolants, 0 QuantifiedInterpolants, 4588776 SizeOfPredicates, 9 NumberOfNonLiveVariables, 4745 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 33 InterpolantComputations, 24 PerfectInterpolantSequences, 37853/37946 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...