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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:30:26,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:30:26,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:30:26,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:30:26,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:30:26,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:30:26,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:30:26,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:30:26,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:30:26,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:30:26,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:30:26,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:30:26,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:30:26,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:30:26,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:30:26,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:30:26,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:30:26,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:30:26,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:30:26,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:30:26,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:30:26,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:30:26,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:30:26,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:30:26,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:30:26,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:30:26,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:30:26,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:30:26,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:30:26,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:30:26,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:30:26,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:30:26,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:30:26,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:30:26,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:30:26,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:30:26,179 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 [2019-10-15 03:30:26,193 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:30:26,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:30:26,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:30:26,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:30:26,195 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:30:26,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:30:26,195 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:30:26,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:30:26,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:30:26,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:30:26,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:30:26,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:30:26,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:30:26,197 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:30:26,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:30:26,197 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:30:26,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:30:26,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:30:26,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:30:26,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:30:26,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:30:26,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:30:26,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:30:26,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:30:26,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:30:26,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:30:26,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:30:26,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:30:26,200 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:30:26,472 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:30:26,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:30:26,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:30:26,491 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:30:26,492 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:30:26,493 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-1.c [2019-10-15 03:30:26,558 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/200e997c2/5cef1f6dbfc142eb9527f2cc0d2a0e4b/FLAG9f688a968 [2019-10-15 03:30:27,108 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:30:27,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-1.c [2019-10-15 03:30:27,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/200e997c2/5cef1f6dbfc142eb9527f2cc0d2a0e4b/FLAG9f688a968 [2019-10-15 03:30:27,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/200e997c2/5cef1f6dbfc142eb9527f2cc0d2a0e4b [2019-10-15 03:30:27,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:30:27,463 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:30:27,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:30:27,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:30:27,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:30:27,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:30:27" (1/1) ... [2019-10-15 03:30:27,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d60e989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:27, skipping insertion in model container [2019-10-15 03:30:27,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:30:27" (1/1) ... [2019-10-15 03:30:27,481 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:30:27,542 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:30:27,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:30:27,820 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:30:27,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:30:27,986 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:30:27,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:27 WrapperNode [2019-10-15 03:30:27,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:30:27,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:30:27,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:30:27,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:30:27,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:27" (1/1) ... [2019-10-15 03:30:27,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:27" (1/1) ... [2019-10-15 03:30:28,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:27" (1/1) ... [2019-10-15 03:30:28,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:27" (1/1) ... [2019-10-15 03:30:28,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:27" (1/1) ... [2019-10-15 03:30:28,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:27" (1/1) ... [2019-10-15 03:30:28,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:27" (1/1) ... [2019-10-15 03:30:28,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:30:28,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:30:28,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:30:28,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:30:28,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:27" (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 [2019-10-15 03:30:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:30:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:30:28,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2019-10-15 03:30:28,102 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:30:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:30:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-15 03:30:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:30:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 03:30:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 03:30:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2019-10-15 03:30:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:30:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:30:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:30:28,265 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 03:30:28,839 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2019-10-15 03:30:28,840 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2019-10-15 03:30:29,211 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:30:29,211 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 03:30:29,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:29 BoogieIcfgContainer [2019-10-15 03:30:29,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:30:29,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:30:29,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:30:29,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:30:29,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:30:27" (1/3) ... [2019-10-15 03:30:29,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62957e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:30:29, skipping insertion in model container [2019-10-15 03:30:29,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:27" (2/3) ... [2019-10-15 03:30:29,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62957e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:30:29, skipping insertion in model container [2019-10-15 03:30:29,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:29" (3/3) ... [2019-10-15 03:30:29,224 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-1.c [2019-10-15 03:30:29,263 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:30:29,273 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:30:29,289 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:30:29,320 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:30:29,320 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:30:29,320 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:30:29,320 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:30:29,321 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:30:29,321 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:30:29,321 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:30:29,321 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:30:29,347 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2019-10-15 03:30:29,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-15 03:30:29,356 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:29,357 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] [2019-10-15 03:30:29,359 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:29,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:29,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1467992, now seen corresponding path program 1 times [2019-10-15 03:30:29,376 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:29,377 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610129853] [2019-10-15 03:30:29,377 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:29,378 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:29,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:30:29,651 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610129853] [2019-10-15 03:30:29,652 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:29,653 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:30:29,653 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162066778] [2019-10-15 03:30:29,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:30:29,658 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:29,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:30:29,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:30:29,677 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 3 states. [2019-10-15 03:30:29,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:29,761 INFO L93 Difference]: Finished difference Result 183 states and 304 transitions. [2019-10-15 03:30:29,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:30:29,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-15 03:30:29,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:29,778 INFO L225 Difference]: With dead ends: 183 [2019-10-15 03:30:29,779 INFO L226 Difference]: Without dead ends: 164 [2019-10-15 03:30:29,782 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:30:29,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-10-15 03:30:29,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 163. [2019-10-15 03:30:29,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-10-15 03:30:29,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 237 transitions. [2019-10-15 03:30:29,846 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 237 transitions. Word has length 25 [2019-10-15 03:30:29,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:29,846 INFO L462 AbstractCegarLoop]: Abstraction has 163 states and 237 transitions. [2019-10-15 03:30:29,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:30:29,847 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 237 transitions. [2019-10-15 03:30:29,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-15 03:30:29,849 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:29,851 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:30:29,852 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:29,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:29,852 INFO L82 PathProgramCache]: Analyzing trace with hash -26132316, now seen corresponding path program 1 times [2019-10-15 03:30:29,853 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:29,853 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216253454] [2019-10-15 03:30:29,853 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:29,853 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:29,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:29,988 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:30:29,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216253454] [2019-10-15 03:30:29,989 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:29,989 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:30:29,989 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909380063] [2019-10-15 03:30:29,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:30:29,991 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:29,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:30:29,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:30:29,992 INFO L87 Difference]: Start difference. First operand 163 states and 237 transitions. Second operand 3 states. [2019-10-15 03:30:30,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:30,253 INFO L93 Difference]: Finished difference Result 262 states and 384 transitions. [2019-10-15 03:30:30,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:30:30,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2019-10-15 03:30:30,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:30,259 INFO L225 Difference]: With dead ends: 262 [2019-10-15 03:30:30,260 INFO L226 Difference]: Without dead ends: 182 [2019-10-15 03:30:30,265 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:30:30,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-10-15 03:30:30,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 178. [2019-10-15 03:30:30,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-10-15 03:30:30,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 255 transitions. [2019-10-15 03:30:30,294 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 255 transitions. Word has length 36 [2019-10-15 03:30:30,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:30,295 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 255 transitions. [2019-10-15 03:30:30,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:30:30,295 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 255 transitions. [2019-10-15 03:30:30,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-15 03:30:30,297 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:30,298 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:30:30,298 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:30,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:30,299 INFO L82 PathProgramCache]: Analyzing trace with hash -398467945, now seen corresponding path program 1 times [2019-10-15 03:30:30,299 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:30,299 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628299289] [2019-10-15 03:30:30,299 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:30,300 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:30,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:30,420 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:30:30,421 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628299289] [2019-10-15 03:30:30,421 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260066183] [2019-10-15 03:30:30,421 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 [2019-10-15 03:30:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:30,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:30:30,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:30:30,616 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-15 03:30:30,616 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:30:30,669 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-15 03:30:30,669 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 03:30:30,670 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5] total 9 [2019-10-15 03:30:30,670 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854198495] [2019-10-15 03:30:30,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:30:30,671 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:30,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:30:30,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:30:30,672 INFO L87 Difference]: Start difference. First operand 178 states and 255 transitions. Second operand 6 states. [2019-10-15 03:30:31,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:31,177 INFO L93 Difference]: Finished difference Result 533 states and 825 transitions. [2019-10-15 03:30:31,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:30:31,177 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2019-10-15 03:30:31,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:31,183 INFO L225 Difference]: With dead ends: 533 [2019-10-15 03:30:31,184 INFO L226 Difference]: Without dead ends: 360 [2019-10-15 03:30:31,186 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:30:31,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2019-10-15 03:30:31,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 328. [2019-10-15 03:30:31,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2019-10-15 03:30:31,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 457 transitions. [2019-10-15 03:30:31,238 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 457 transitions. Word has length 49 [2019-10-15 03:30:31,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:31,238 INFO L462 AbstractCegarLoop]: Abstraction has 328 states and 457 transitions. [2019-10-15 03:30:31,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:30:31,239 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 457 transitions. [2019-10-15 03:30:31,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-15 03:30:31,247 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:31,247 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:30:31,451 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:30:31,451 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:31,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:31,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1478736520, now seen corresponding path program 1 times [2019-10-15 03:30:31,453 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:31,453 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488448451] [2019-10-15 03:30:31,454 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:31,454 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:31,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:31,525 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 03:30:31,526 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488448451] [2019-10-15 03:30:31,527 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:31,527 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:30:31,528 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562303600] [2019-10-15 03:30:31,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:30:31,529 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:31,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:30:31,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:30:31,530 INFO L87 Difference]: Start difference. First operand 328 states and 457 transitions. Second operand 3 states. [2019-10-15 03:30:31,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:31,678 INFO L93 Difference]: Finished difference Result 691 states and 979 transitions. [2019-10-15 03:30:31,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:30:31,678 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2019-10-15 03:30:31,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:31,681 INFO L225 Difference]: With dead ends: 691 [2019-10-15 03:30:31,682 INFO L226 Difference]: Without dead ends: 370 [2019-10-15 03:30:31,685 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:30:31,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2019-10-15 03:30:31,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 366. [2019-10-15 03:30:31,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2019-10-15 03:30:31,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 501 transitions. [2019-10-15 03:30:31,701 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 501 transitions. Word has length 64 [2019-10-15 03:30:31,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:31,701 INFO L462 AbstractCegarLoop]: Abstraction has 366 states and 501 transitions. [2019-10-15 03:30:31,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:30:31,702 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 501 transitions. [2019-10-15 03:30:31,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-15 03:30:31,706 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:31,706 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:30:31,706 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:31,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:31,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1818418256, now seen corresponding path program 1 times [2019-10-15 03:30:31,707 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:31,707 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633547849] [2019-10-15 03:30:31,708 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:31,708 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:31,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:31,849 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 03:30:31,850 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633547849] [2019-10-15 03:30:31,850 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786417333] [2019-10-15 03:30:31,850 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 [2019-10-15 03:30:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:31,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 03:30:31,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:30:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2019-10-15 03:30:31,979 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:30:32,045 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2019-10-15 03:30:32,045 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 03:30:32,046 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [6] total 10 [2019-10-15 03:30:32,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022887240] [2019-10-15 03:30:32,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:30:32,047 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:32,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:30:32,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:30:32,050 INFO L87 Difference]: Start difference. First operand 366 states and 501 transitions. Second operand 6 states. [2019-10-15 03:30:32,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:32,361 INFO L93 Difference]: Finished difference Result 852 states and 1223 transitions. [2019-10-15 03:30:32,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:30:32,361 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2019-10-15 03:30:32,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:32,365 INFO L225 Difference]: With dead ends: 852 [2019-10-15 03:30:32,365 INFO L226 Difference]: Without dead ends: 463 [2019-10-15 03:30:32,367 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:30:32,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2019-10-15 03:30:32,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 413. [2019-10-15 03:30:32,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-10-15 03:30:32,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 578 transitions. [2019-10-15 03:30:32,384 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 578 transitions. Word has length 82 [2019-10-15 03:30:32,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:32,384 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 578 transitions. [2019-10-15 03:30:32,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:30:32,385 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 578 transitions. [2019-10-15 03:30:32,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-15 03:30:32,388 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:32,389 INFO L380 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:30:32,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:30:32,593 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:32,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:32,594 INFO L82 PathProgramCache]: Analyzing trace with hash 79755197, now seen corresponding path program 1 times [2019-10-15 03:30:32,594 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:32,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054768096] [2019-10-15 03:30:32,595 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:32,595 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:32,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:32,686 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 03:30:32,686 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054768096] [2019-10-15 03:30:32,686 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318709386] [2019-10-15 03:30:32,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-10-15 03:30:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:32,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 03:30:32,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:30:32,799 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-15 03:30:32,800 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:30:32,813 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:30:32,825 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:30:32,848 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:30:32,885 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2019-10-15 03:30:32,886 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 03:30:32,887 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 5] total 7 [2019-10-15 03:30:32,887 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089948347] [2019-10-15 03:30:32,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:30:32,888 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:32,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:30:32,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:30:32,889 INFO L87 Difference]: Start difference. First operand 413 states and 578 transitions. Second operand 3 states. [2019-10-15 03:30:32,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:32,929 INFO L93 Difference]: Finished difference Result 812 states and 1140 transitions. [2019-10-15 03:30:32,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:30:32,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2019-10-15 03:30:32,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:32,937 INFO L225 Difference]: With dead ends: 812 [2019-10-15 03:30:32,937 INFO L226 Difference]: Without dead ends: 810 [2019-10-15 03:30:32,938 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 177 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:30:32,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2019-10-15 03:30:32,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 808. [2019-10-15 03:30:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2019-10-15 03:30:32,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1136 transitions. [2019-10-15 03:30:32,970 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1136 transitions. Word has length 91 [2019-10-15 03:30:32,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:32,971 INFO L462 AbstractCegarLoop]: Abstraction has 808 states and 1136 transitions. [2019-10-15 03:30:32,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:30:32,971 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1136 transitions. [2019-10-15 03:30:32,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-15 03:30:32,974 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:32,975 INFO L380 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:30:33,178 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:30:33,179 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:33,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:33,179 INFO L82 PathProgramCache]: Analyzing trace with hash 198010875, now seen corresponding path program 1 times [2019-10-15 03:30:33,180 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:33,180 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844287560] [2019-10-15 03:30:33,181 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:33,181 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:33,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:33,250 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-10-15 03:30:33,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844287560] [2019-10-15 03:30:33,250 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:33,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:30:33,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631665195] [2019-10-15 03:30:33,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:30:33,252 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:33,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:30:33,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:30:33,253 INFO L87 Difference]: Start difference. First operand 808 states and 1136 transitions. Second operand 3 states. [2019-10-15 03:30:33,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:33,388 INFO L93 Difference]: Finished difference Result 1618 states and 2272 transitions. [2019-10-15 03:30:33,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:30:33,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2019-10-15 03:30:33,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:33,393 INFO L225 Difference]: With dead ends: 1618 [2019-10-15 03:30:33,394 INFO L226 Difference]: Without dead ends: 822 [2019-10-15 03:30:33,396 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:30:33,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2019-10-15 03:30:33,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 808. [2019-10-15 03:30:33,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2019-10-15 03:30:33,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1092 transitions. [2019-10-15 03:30:33,423 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1092 transitions. Word has length 113 [2019-10-15 03:30:33,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:33,425 INFO L462 AbstractCegarLoop]: Abstraction has 808 states and 1092 transitions. [2019-10-15 03:30:33,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:30:33,425 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1092 transitions. [2019-10-15 03:30:33,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-15 03:30:33,428 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:33,428 INFO L380 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-15 03:30:33,428 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:33,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:33,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1700788788, now seen corresponding path program 1 times [2019-10-15 03:30:33,429 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:33,431 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280625672] [2019-10-15 03:30:33,431 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:33,431 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:33,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:33,541 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 102 proven. 19 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 03:30:33,541 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280625672] [2019-10-15 03:30:33,541 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555874710] [2019-10-15 03:30:33,542 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 [2019-10-15 03:30:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:33,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 03:30:33,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:30:33,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:30:33,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:30:33,722 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 102 proven. 19 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 03:30:33,722 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:30:33,735 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:30:33,795 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 102 proven. 19 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 03:30:33,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1110002338] [2019-10-15 03:30:33,854 INFO L162 IcfgInterpreter]: Started Sifa with 57 locations of interest [2019-10-15 03:30:33,854 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:30:33,861 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:30:33,870 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:30:33,871 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:30:33,921 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-15 03:30:33,930 INFO L199 IcfgInterpreter]: Interpreting procedure ssl3_connect with input of size 3 for LOIs [2019-10-15 03:30:39,335 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2019-10-15 03:30:41,926 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 199 [2019-10-15 03:30:46,399 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2019-10-15 03:30:46,992 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 236 [2019-10-15 03:30:47,202 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 255