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_3.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:30:39,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:30:39,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:30:39,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:30:39,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:30:39,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:30:39,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:30:39,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:30:39,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:30:39,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:30:39,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:30:39,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:30:39,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:30:39,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:30:39,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:30:39,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:30:39,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:30:39,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:30:39,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:30:39,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:30:39,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:30:39,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:30:39,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:30:39,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:30:39,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:30:39,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:30:39,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:30:39,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:30:39,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:30:39,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:30:39,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:30:39,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:30:39,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:30:39,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:30:39,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:30:39,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:30:39,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:30:39,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:30:39,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:30:39,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:30:39,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:30:39,631 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 03:30:39,658 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:30:39,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:30:39,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:30:39,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:30:39,661 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:30:39,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:30:39,662 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:30:39,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:30:39,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:30:39,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:30:39,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:30:39,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:30:39,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:30:39,665 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:30:39,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:30:39,665 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:30:39,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:30:39,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:30:39,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:30:39,666 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:30:39,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:30:39,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:30:39,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:30:39,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:30:39,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:30:39,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:30:39,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:30:39,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:30:39,668 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 03:30:39,998 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:30:40,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:30:40,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:30:40,026 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:30:40,026 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:30:40,027 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c [2019-10-15 03:30:40,105 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e70c315b9/7fc31bbb3c144054bc37de883f4d9117/FLAG20c666aa7 [2019-10-15 03:30:40,655 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:30:40,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c [2019-10-15 03:30:40,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e70c315b9/7fc31bbb3c144054bc37de883f4d9117/FLAG20c666aa7 [2019-10-15 03:30:40,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e70c315b9/7fc31bbb3c144054bc37de883f4d9117 [2019-10-15 03:30:40,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:30:40,974 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:30:40,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:30:40,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:30:40,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:30:40,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:30:40" (1/1) ... [2019-10-15 03:30:40,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a4be4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:40, skipping insertion in model container [2019-10-15 03:30:40,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:30:40" (1/1) ... [2019-10-15 03:30:40,992 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:30:41,047 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:30:41,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:30:41,307 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:30:41,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:30:41,499 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:30:41,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:41 WrapperNode [2019-10-15 03:30:41,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:30:41,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:30:41,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:30:41,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:30:41,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:41" (1/1) ... [2019-10-15 03:30:41,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:41" (1/1) ... [2019-10-15 03:30:41,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:41" (1/1) ... [2019-10-15 03:30:41,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:41" (1/1) ... [2019-10-15 03:30:41,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:41" (1/1) ... [2019-10-15 03:30:41,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:41" (1/1) ... [2019-10-15 03:30:41,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:41" (1/1) ... [2019-10-15 03:30:41,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:30:41,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:30:41,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:30:41,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:30:41,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:41" (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 03:30:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:30:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:30:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2019-10-15 03:30:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:30:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:30:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-15 03:30:41,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:30:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 03:30:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 03:30:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 03:30:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2019-10-15 03:30:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:30:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:30:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:30:41,799 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 03:30:42,406 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2019-10-15 03:30:42,407 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2019-10-15 03:30:42,836 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:30:42,837 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 03:30:42,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:42 BoogieIcfgContainer [2019-10-15 03:30:42,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:30:42,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:30:42,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:30:42,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:30:42,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:30:40" (1/3) ... [2019-10-15 03:30:42,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6f9573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:30:42, skipping insertion in model container [2019-10-15 03:30:42,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:41" (2/3) ... [2019-10-15 03:30:42,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6f9573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:30:42, skipping insertion in model container [2019-10-15 03:30:42,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:42" (3/3) ... [2019-10-15 03:30:42,851 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-2.c [2019-10-15 03:30:42,864 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:30:42,875 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:30:42,890 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:30:42,940 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:30:42,941 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:30:42,941 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:30:42,941 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:30:42,941 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:30:42,942 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:30:42,942 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:30:42,942 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:30:42,974 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-10-15 03:30:42,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-15 03:30:42,983 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:42,984 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 03:30:42,986 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:42,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:42,993 INFO L82 PathProgramCache]: Analyzing trace with hash 154074426, now seen corresponding path program 1 times [2019-10-15 03:30:43,003 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:43,004 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899077143] [2019-10-15 03:30:43,004 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:43,004 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:43,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:43,388 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 03:30:43,389 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899077143] [2019-10-15 03:30:43,390 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:43,390 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:30:43,391 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312529466] [2019-10-15 03:30:43,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:30:43,400 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:43,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:30:43,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:30:43,423 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 5 states. [2019-10-15 03:30:43,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:43,788 INFO L93 Difference]: Finished difference Result 212 states and 355 transitions. [2019-10-15 03:30:43,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:30:43,790 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-15 03:30:43,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:43,810 INFO L225 Difference]: With dead ends: 212 [2019-10-15 03:30:43,810 INFO L226 Difference]: Without dead ends: 114 [2019-10-15 03:30:43,818 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:30:43,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-10-15 03:30:43,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2019-10-15 03:30:43,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-10-15 03:30:43,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 162 transitions. [2019-10-15 03:30:43,917 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 162 transitions. Word has length 25 [2019-10-15 03:30:43,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:43,919 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 162 transitions. [2019-10-15 03:30:43,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:30:43,920 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 162 transitions. [2019-10-15 03:30:43,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-15 03:30:43,923 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:43,923 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] [2019-10-15 03:30:43,924 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:43,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:43,926 INFO L82 PathProgramCache]: Analyzing trace with hash 476654140, now seen corresponding path program 1 times [2019-10-15 03:30:43,926 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:43,926 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927729730] [2019-10-15 03:30:43,927 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:43,927 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:43,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:44,073 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 03:30:44,074 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927729730] [2019-10-15 03:30:44,074 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:44,074 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:30:44,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027184083] [2019-10-15 03:30:44,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:30:44,077 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:44,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:30:44,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:30:44,077 INFO L87 Difference]: Start difference. First operand 109 states and 162 transitions. Second operand 5 states. [2019-10-15 03:30:44,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:44,309 INFO L93 Difference]: Finished difference Result 238 states and 362 transitions. [2019-10-15 03:30:44,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:30:44,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-15 03:30:44,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:44,311 INFO L225 Difference]: With dead ends: 238 [2019-10-15 03:30:44,312 INFO L226 Difference]: Without dead ends: 136 [2019-10-15 03:30:44,313 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:30:44,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-10-15 03:30:44,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 131. [2019-10-15 03:30:44,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-15 03:30:44,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 201 transitions. [2019-10-15 03:30:44,328 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 201 transitions. Word has length 26 [2019-10-15 03:30:44,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:44,328 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 201 transitions. [2019-10-15 03:30:44,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:30:44,329 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 201 transitions. [2019-10-15 03:30:44,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-15 03:30:44,331 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:44,331 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:30:44,331 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:44,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:44,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1733620560, now seen corresponding path program 1 times [2019-10-15 03:30:44,332 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:44,333 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260009536] [2019-10-15 03:30:44,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:44,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:44,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:44,415 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:30:44,416 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260009536] [2019-10-15 03:30:44,416 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:44,416 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:30:44,417 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884686101] [2019-10-15 03:30:44,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:30:44,437 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:44,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:30:44,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:30:44,438 INFO L87 Difference]: Start difference. First operand 131 states and 201 transitions. Second operand 5 states. [2019-10-15 03:30:44,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:44,673 INFO L93 Difference]: Finished difference Result 276 states and 431 transitions. [2019-10-15 03:30:44,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:30:44,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-10-15 03:30:44,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:44,677 INFO L225 Difference]: With dead ends: 276 [2019-10-15 03:30:44,680 INFO L226 Difference]: Without dead ends: 152 [2019-10-15 03:30:44,682 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:30:44,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-10-15 03:30:44,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2019-10-15 03:30:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-10-15 03:30:44,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 233 transitions. [2019-10-15 03:30:44,708 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 233 transitions. Word has length 43 [2019-10-15 03:30:44,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:44,708 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 233 transitions. [2019-10-15 03:30:44,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:30:44,709 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 233 transitions. [2019-10-15 03:30:44,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-15 03:30:44,716 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:44,717 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:30:44,719 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:44,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:44,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1940645422, now seen corresponding path program 1 times [2019-10-15 03:30:44,720 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:44,721 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277951038] [2019-10-15 03:30:44,721 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:44,721 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:44,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:44,840 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:30:44,841 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277951038] [2019-10-15 03:30:44,841 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:44,842 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:30:44,842 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573931659] [2019-10-15 03:30:44,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:30:44,843 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:44,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:30:44,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:30:44,844 INFO L87 Difference]: Start difference. First operand 150 states and 233 transitions. Second operand 5 states. [2019-10-15 03:30:45,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:45,047 INFO L93 Difference]: Finished difference Result 295 states and 461 transitions. [2019-10-15 03:30:45,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:30:45,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2019-10-15 03:30:45,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:45,051 INFO L225 Difference]: With dead ends: 295 [2019-10-15 03:30:45,051 INFO L226 Difference]: Without dead ends: 152 [2019-10-15 03:30:45,052 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:30:45,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-10-15 03:30:45,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2019-10-15 03:30:45,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-10-15 03:30:45,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 231 transitions. [2019-10-15 03:30:45,075 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 231 transitions. Word has length 44 [2019-10-15 03:30:45,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:45,075 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 231 transitions. [2019-10-15 03:30:45,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:30:45,075 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 231 transitions. [2019-10-15 03:30:45,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-15 03:30:45,079 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:45,079 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:30:45,082 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:45,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:45,083 INFO L82 PathProgramCache]: Analyzing trace with hash 65395877, now seen corresponding path program 1 times [2019-10-15 03:30:45,083 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:45,083 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255931552] [2019-10-15 03:30:45,084 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:45,084 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:45,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:45,165 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 03:30:45,166 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255931552] [2019-10-15 03:30:45,166 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:45,166 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:30:45,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311561369] [2019-10-15 03:30:45,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:30:45,168 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:45,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:30:45,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:30:45,169 INFO L87 Difference]: Start difference. First operand 150 states and 231 transitions. Second operand 5 states. [2019-10-15 03:30:45,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:45,347 INFO L93 Difference]: Finished difference Result 314 states and 490 transitions. [2019-10-15 03:30:45,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:30:45,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2019-10-15 03:30:45,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:45,352 INFO L225 Difference]: With dead ends: 314 [2019-10-15 03:30:45,352 INFO L226 Difference]: Without dead ends: 171 [2019-10-15 03:30:45,353 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:30:45,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-10-15 03:30:45,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 167. [2019-10-15 03:30:45,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-10-15 03:30:45,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 258 transitions. [2019-10-15 03:30:45,396 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 258 transitions. Word has length 59 [2019-10-15 03:30:45,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:45,396 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 258 transitions. [2019-10-15 03:30:45,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:30:45,396 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 258 transitions. [2019-10-15 03:30:45,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-15 03:30:45,401 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:45,402 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:30:45,402 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:45,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:45,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1773001319, now seen corresponding path program 1 times [2019-10-15 03:30:45,403 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:45,403 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968180961] [2019-10-15 03:30:45,403 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:45,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:45,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:45,517 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 03:30:45,518 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968180961] [2019-10-15 03:30:45,518 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:45,518 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:30:45,518 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502488415] [2019-10-15 03:30:45,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:30:45,519 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:45,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:30:45,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:30:45,520 INFO L87 Difference]: Start difference. First operand 167 states and 258 transitions. Second operand 5 states. [2019-10-15 03:30:45,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:45,713 INFO L93 Difference]: Finished difference Result 331 states and 514 transitions. [2019-10-15 03:30:45,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:30:45,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-15 03:30:45,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:45,715 INFO L225 Difference]: With dead ends: 331 [2019-10-15 03:30:45,715 INFO L226 Difference]: Without dead ends: 171 [2019-10-15 03:30:45,716 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:30:45,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-10-15 03:30:45,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 167. [2019-10-15 03:30:45,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-10-15 03:30:45,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 255 transitions. [2019-10-15 03:30:45,727 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 255 transitions. Word has length 60 [2019-10-15 03:30:45,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:45,728 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 255 transitions. [2019-10-15 03:30:45,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:30:45,728 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 255 transitions. [2019-10-15 03:30:45,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-15 03:30:45,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:45,730 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:30:45,730 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:45,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:45,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1537651725, now seen corresponding path program 1 times [2019-10-15 03:30:45,731 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:45,731 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838995483] [2019-10-15 03:30:45,731 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:45,732 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:45,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:45,789 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:30:45,790 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838995483] [2019-10-15 03:30:45,790 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:45,790 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:30:45,791 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343875824] [2019-10-15 03:30:45,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:30:45,792 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:45,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:30:45,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:30:45,792 INFO L87 Difference]: Start difference. First operand 167 states and 255 transitions. Second operand 5 states. [2019-10-15 03:30:46,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:46,014 INFO L93 Difference]: Finished difference Result 366 states and 570 transitions. [2019-10-15 03:30:46,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:30:46,015 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2019-10-15 03:30:46,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:46,020 INFO L225 Difference]: With dead ends: 366 [2019-10-15 03:30:46,020 INFO L226 Difference]: Without dead ends: 205 [2019-10-15 03:30:46,022 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:30:46,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2019-10-15 03:30:46,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2019-10-15 03:30:46,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2019-10-15 03:30:46,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 320 transitions. [2019-10-15 03:30:46,033 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 320 transitions. Word has length 62 [2019-10-15 03:30:46,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:46,034 INFO L462 AbstractCegarLoop]: Abstraction has 205 states and 320 transitions. [2019-10-15 03:30:46,034 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:30:46,034 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 320 transitions. [2019-10-15 03:30:46,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-15 03:30:46,035 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:46,035 INFO L380 BasicCegarLoop]: trace histogram [4, 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] [2019-10-15 03:30:46,036 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:46,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:46,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1811986405, now seen corresponding path program 1 times [2019-10-15 03:30:46,036 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:46,037 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090496252] [2019-10-15 03:30:46,037 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:46,037 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:46,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:46,087 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 03:30:46,088 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090496252] [2019-10-15 03:30:46,088 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:46,088 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:30:46,088 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613964130] [2019-10-15 03:30:46,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:30:46,089 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:46,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:30:46,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:30:46,090 INFO L87 Difference]: Start difference. First operand 205 states and 320 transitions. Second operand 5 states. [2019-10-15 03:30:46,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:46,276 INFO L93 Difference]: Finished difference Result 420 states and 661 transitions. [2019-10-15 03:30:46,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:30:46,277 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2019-10-15 03:30:46,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:46,278 INFO L225 Difference]: With dead ends: 420 [2019-10-15 03:30:46,279 INFO L226 Difference]: Without dead ends: 222 [2019-10-15 03:30:46,280 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:30:46,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2019-10-15 03:30:46,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 220. [2019-10-15 03:30:46,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-10-15 03:30:46,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 341 transitions. [2019-10-15 03:30:46,291 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 341 transitions. Word has length 72 [2019-10-15 03:30:46,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:46,292 INFO L462 AbstractCegarLoop]: Abstraction has 220 states and 341 transitions. [2019-10-15 03:30:46,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:30:46,292 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 341 transitions. [2019-10-15 03:30:46,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-15 03:30:46,293 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:46,293 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:30:46,293 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:46,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:46,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1731812547, now seen corresponding path program 1 times [2019-10-15 03:30:46,294 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:46,294 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032144613] [2019-10-15 03:30:46,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:46,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:46,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:46,348 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-15 03:30:46,348 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032144613] [2019-10-15 03:30:46,349 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:46,349 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:30:46,349 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900491933] [2019-10-15 03:30:46,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:30:46,350 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:46,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:30:46,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:30:46,350 INFO L87 Difference]: Start difference. First operand 220 states and 341 transitions. Second operand 5 states. [2019-10-15 03:30:46,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:46,523 INFO L93 Difference]: Finished difference Result 435 states and 677 transitions. [2019-10-15 03:30:46,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:30:46,523 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2019-10-15 03:30:46,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:46,525 INFO L225 Difference]: With dead ends: 435 [2019-10-15 03:30:46,525 INFO L226 Difference]: Without dead ends: 222 [2019-10-15 03:30:46,526 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:30:46,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2019-10-15 03:30:46,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 220. [2019-10-15 03:30:46,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-10-15 03:30:46,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 336 transitions. [2019-10-15 03:30:46,538 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 336 transitions. Word has length 73 [2019-10-15 03:30:46,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:46,538 INFO L462 AbstractCegarLoop]: Abstraction has 220 states and 336 transitions. [2019-10-15 03:30:46,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:30:46,539 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 336 transitions. [2019-10-15 03:30:46,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-15 03:30:46,540 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:46,540 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, 1] [2019-10-15 03:30:46,540 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:46,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:46,540 INFO L82 PathProgramCache]: Analyzing trace with hash 966844159, now seen corresponding path program 1 times [2019-10-15 03:30:46,541 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:46,541 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107000129] [2019-10-15 03:30:46,541 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:46,541 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:46,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:46,588 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 03:30:46,589 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107000129] [2019-10-15 03:30:46,589 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:46,589 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:30:46,589 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681779901] [2019-10-15 03:30:46,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:30:46,590 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:46,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:30:46,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:30:46,591 INFO L87 Difference]: Start difference. First operand 220 states and 336 transitions. Second operand 5 states. [2019-10-15 03:30:46,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:46,744 INFO L93 Difference]: Finished difference Result 448 states and 689 transitions. [2019-10-15 03:30:46,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:30:46,744 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2019-10-15 03:30:46,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:46,747 INFO L225 Difference]: With dead ends: 448 [2019-10-15 03:30:46,747 INFO L226 Difference]: Without dead ends: 235 [2019-10-15 03:30:46,748 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:30:46,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2019-10-15 03:30:46,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2019-10-15 03:30:46,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-10-15 03:30:46,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 352 transitions. [2019-10-15 03:30:46,761 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 352 transitions. Word has length 83 [2019-10-15 03:30:46,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:46,762 INFO L462 AbstractCegarLoop]: Abstraction has 233 states and 352 transitions. [2019-10-15 03:30:46,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:30:46,762 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 352 transitions. [2019-10-15 03:30:46,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-15 03:30:46,763 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:46,763 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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] [2019-10-15 03:30:46,764 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:46,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:46,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1084844033, now seen corresponding path program 1 times [2019-10-15 03:30:46,764 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:46,765 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669344080] [2019-10-15 03:30:46,765 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:46,765 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:46,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:46,838 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2019-10-15 03:30:46,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669344080] [2019-10-15 03:30:46,839 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:30:46,840 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:30:46,840 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614731265] [2019-10-15 03:30:46,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:30:46,841 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:30:46,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:30:46,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:30:46,841 INFO L87 Difference]: Start difference. First operand 233 states and 352 transitions. Second operand 5 states. [2019-10-15 03:30:47,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:30:47,055 INFO L93 Difference]: Finished difference Result 461 states and 699 transitions. [2019-10-15 03:30:47,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:30:47,056 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2019-10-15 03:30:47,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:30:47,058 INFO L225 Difference]: With dead ends: 461 [2019-10-15 03:30:47,058 INFO L226 Difference]: Without dead ends: 235 [2019-10-15 03:30:47,059 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:30:47,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2019-10-15 03:30:47,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2019-10-15 03:30:47,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-10-15 03:30:47,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 346 transitions. [2019-10-15 03:30:47,073 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 346 transitions. Word has length 84 [2019-10-15 03:30:47,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:30:47,073 INFO L462 AbstractCegarLoop]: Abstraction has 233 states and 346 transitions. [2019-10-15 03:30:47,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:30:47,073 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 346 transitions. [2019-10-15 03:30:47,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-15 03:30:47,074 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:47,075 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, 1] [2019-10-15 03:30:47,075 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:47,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:47,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1157065290, now seen corresponding path program 1 times [2019-10-15 03:30:47,076 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:47,076 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772332215] [2019-10-15 03:30:47,076 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:47,076 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:47,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:47,191 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 03:30:47,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772332215] [2019-10-15 03:30:47,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110884109] [2019-10-15 03:30:47,192 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 03:30:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:30:47,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-15 03:30:47,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:30:47,351 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 03:30:47,351 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:30:47,393 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:30:47,394 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:30:47,449 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 44 proven. 50 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 03:30:47,449 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1472854956] [2019-10-15 03:30:47,489 INFO L162 IcfgInterpreter]: Started Sifa with 43 locations of interest [2019-10-15 03:30:47,489 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:30:47,495 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:30:47,504 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:30:47,505 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:30:47,559 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-15 03:30:47,568 INFO L199 IcfgInterpreter]: Interpreting procedure ssl3_connect with input of size 3 for LOIs [2019-10-15 03:30:50,348 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2019-10-15 03:30:50,914 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2019-10-15 03:30:51,850 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 216 [2019-10-15 03:30:55,001 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 252