/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:16:08,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:16:08,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:16:08,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:16:08,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:16:08,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:16:08,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:16:08,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:16:08,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:16:08,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:16:08,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:16:08,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:16:08,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:16:08,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:16:08,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:16:08,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:16:08,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:16:08,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:16:08,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:16:08,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:16:08,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:16:08,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:16:08,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:16:08,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:16:08,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:16:08,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:16:08,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:16:08,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:16:08,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:16:08,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:16:08,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:16:08,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:16:08,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:16:08,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:16:08,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:16:08,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:16:08,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:16:08,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:16:08,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:16:08,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:16:08,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:16:08,105 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:16:08,131 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:16:08,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:16:08,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:16:08,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:16:08,133 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:16:08,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:16:08,134 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:16:08,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:16:08,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:16:08,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:16:08,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:16:08,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:16:08,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:16:08,135 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:16:08,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:16:08,136 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:16:08,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:16:08,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:16:08,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:16:08,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:16:08,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:16:08,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:16:08,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:16:08,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:16:08,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:16:08,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:16:08,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:16:08,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:16:08,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:16:08,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:16:08,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:16:08,654 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:16:08,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:16:08,661 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:16:08,662 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:16:08,663 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-09-24 18:16:08,765 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22024d202/32997803da7d479da075331787ec29a7/FLAG5920a40b6 [2020-09-24 18:16:09,391 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:16:09,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-09-24 18:16:09,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22024d202/32997803da7d479da075331787ec29a7/FLAG5920a40b6 [2020-09-24 18:16:09,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22024d202/32997803da7d479da075331787ec29a7 [2020-09-24 18:16:09,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:16:09,708 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:16:09,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:16:09,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:16:09,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:16:09,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:16:09" (1/1) ... [2020-09-24 18:16:09,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d781438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:09, skipping insertion in model container [2020-09-24 18:16:09,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:16:09" (1/1) ... [2020-09-24 18:16:09,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:16:09,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:16:10,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:16:10,069 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:16:10,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:16:10,266 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:16:10,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:10 WrapperNode [2020-09-24 18:16:10,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:16:10,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:16:10,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:16:10,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:16:10,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:10" (1/1) ... [2020-09-24 18:16:10,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:10" (1/1) ... [2020-09-24 18:16:10,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:10" (1/1) ... [2020-09-24 18:16:10,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:10" (1/1) ... [2020-09-24 18:16:10,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:10" (1/1) ... [2020-09-24 18:16:10,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:10" (1/1) ... [2020-09-24 18:16:10,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:10" (1/1) ... [2020-09-24 18:16:10,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:16:10,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:16:10,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:16:10,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:16:10,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:16:10,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:16:10,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:16:10,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-24 18:16:10,405 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:16:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:16:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 18:16:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:16:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 18:16:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-24 18:16:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:16:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:16:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:16:10,596 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 18:16:11,235 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-24 18:16:11,236 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-24 18:16:11,268 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:16:11,268 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 18:16:11,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:16:11 BoogieIcfgContainer [2020-09-24 18:16:11,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:16:11,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:16:11,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:16:11,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:16:11,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:16:09" (1/3) ... [2020-09-24 18:16:11,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce2288c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:16:11, skipping insertion in model container [2020-09-24 18:16:11,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:10" (2/3) ... [2020-09-24 18:16:11,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce2288c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:16:11, skipping insertion in model container [2020-09-24 18:16:11,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:16:11" (3/3) ... [2020-09-24 18:16:11,287 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-2.c [2020-09-24 18:16:11,299 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:16:11,311 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:16:11,331 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:16:11,364 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:16:11,365 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:16:11,365 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:16:11,365 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:16:11,365 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:16:11,365 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:16:11,365 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:16:11,365 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:16:11,395 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states. [2020-09-24 18:16:11,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:16:11,414 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:11,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:11,416 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:11,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:11,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1836119895, now seen corresponding path program 1 times [2020-09-24 18:16:11,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:11,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700478541] [2020-09-24 18:16:11,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:11,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:12,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:12,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:12,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:12,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-24 18:16:12,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:16:12,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 18:16:12,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:12,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:12,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 134 [2020-09-24 18:16:12,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 18:16:12,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:16:12,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:12,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:12,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:12,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:12,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:12,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:16:12,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:12,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:12,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:12,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:12,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:12,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:16:12,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700478541] [2020-09-24 18:16:12,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:12,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:12,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88918796] [2020-09-24 18:16:12,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:12,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:13,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:13,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:13,017 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 3 states. [2020-09-24 18:16:13,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:13,231 INFO L93 Difference]: Finished difference Result 849 states and 1106 transitions. [2020-09-24 18:16:13,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:13,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-09-24 18:16:13,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:13,273 INFO L225 Difference]: With dead ends: 849 [2020-09-24 18:16:13,274 INFO L226 Difference]: Without dead ends: 533 [2020-09-24 18:16:13,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:13,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-09-24 18:16:13,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2020-09-24 18:16:13,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-09-24 18:16:13,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 639 transitions. [2020-09-24 18:16:13,391 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 639 transitions. Word has length 160 [2020-09-24 18:16:13,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:13,393 INFO L479 AbstractCegarLoop]: Abstraction has 533 states and 639 transitions. [2020-09-24 18:16:13,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:13,393 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 639 transitions. [2020-09-24 18:16:13,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-24 18:16:13,398 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:13,399 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:13,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:16:13,400 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:13,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:13,400 INFO L82 PathProgramCache]: Analyzing trace with hash 2087119921, now seen corresponding path program 1 times [2020-09-24 18:16:13,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:13,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641756632] [2020-09-24 18:16:13,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:13,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:13,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:13,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:13,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:13,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:14,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:14,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-24 18:16:14,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:16:14,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1149 [2020-09-24 18:16:14,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:14,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:14,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-24 18:16:14,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 18:16:14,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:14,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:14,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:14,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:14,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:14,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:14,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:16:14,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:14,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:14,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:14,675 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:16:14,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641756632] [2020-09-24 18:16:14,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:14,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:14,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744342754] [2020-09-24 18:16:14,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:14,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:14,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:14,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:14,680 INFO L87 Difference]: Start difference. First operand 533 states and 639 transitions. Second operand 3 states. [2020-09-24 18:16:14,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:14,752 INFO L93 Difference]: Finished difference Result 924 states and 1137 transitions. [2020-09-24 18:16:14,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:14,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-24 18:16:14,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:14,758 INFO L225 Difference]: With dead ends: 924 [2020-09-24 18:16:14,758 INFO L226 Difference]: Without dead ends: 725 [2020-09-24 18:16:14,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:14,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2020-09-24 18:16:14,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 725. [2020-09-24 18:16:14,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2020-09-24 18:16:14,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 881 transitions. [2020-09-24 18:16:14,791 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 881 transitions. Word has length 180 [2020-09-24 18:16:14,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:14,792 INFO L479 AbstractCegarLoop]: Abstraction has 725 states and 881 transitions. [2020-09-24 18:16:14,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:14,792 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 881 transitions. [2020-09-24 18:16:14,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 18:16:14,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:14,796 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:14,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:16:14,797 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:14,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:14,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1945874443, now seen corresponding path program 1 times [2020-09-24 18:16:14,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:14,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [387608642] [2020-09-24 18:16:14,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:14,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:14,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:15,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:15,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:15,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:15,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-24 18:16:15,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:16:15,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1027 [2020-09-24 18:16:15,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:15,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:15,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-24 18:16:15,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 18:16:15,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:15,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:15,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:15,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:15,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:15,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:15,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:16:15,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:15,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:15,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:15,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:15,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:15,946 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 18:16:15,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [387608642] [2020-09-24 18:16:15,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:15,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:15,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59041945] [2020-09-24 18:16:15,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:15,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:15,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:15,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:15,950 INFO L87 Difference]: Start difference. First operand 725 states and 881 transitions. Second operand 3 states. [2020-09-24 18:16:16,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:16,216 INFO L93 Difference]: Finished difference Result 1494 states and 1916 transitions. [2020-09-24 18:16:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:16,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-09-24 18:16:16,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:16,229 INFO L225 Difference]: With dead ends: 1494 [2020-09-24 18:16:16,229 INFO L226 Difference]: Without dead ends: 908 [2020-09-24 18:16:16,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:16,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2020-09-24 18:16:16,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 857. [2020-09-24 18:16:16,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2020-09-24 18:16:16,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1040 transitions. [2020-09-24 18:16:16,260 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1040 transitions. Word has length 201 [2020-09-24 18:16:16,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:16,261 INFO L479 AbstractCegarLoop]: Abstraction has 857 states and 1040 transitions. [2020-09-24 18:16:16,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:16,261 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1040 transitions. [2020-09-24 18:16:16,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 18:16:16,265 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:16,266 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:16,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:16:16,266 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:16,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:16,267 INFO L82 PathProgramCache]: Analyzing trace with hash 505491541, now seen corresponding path program 1 times [2020-09-24 18:16:16,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:16,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158356188] [2020-09-24 18:16:16,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:16,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:16,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:16,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:16,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:16,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:17,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:17,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-24 18:16:17,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:16:17,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1155 [2020-09-24 18:16:17,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-24 18:16:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 18:16:17,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:17,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:17,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:17,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:17,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:17,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:17,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:16:17,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:17,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:17,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:17,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:17,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:17,555 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 18:16:17,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158356188] [2020-09-24 18:16:17,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:17,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:17,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236771575] [2020-09-24 18:16:17,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:17,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:17,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:17,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:17,571 INFO L87 Difference]: Start difference. First operand 857 states and 1040 transitions. Second operand 3 states. [2020-09-24 18:16:17,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:17,905 INFO L93 Difference]: Finished difference Result 1783 states and 2263 transitions. [2020-09-24 18:16:17,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:17,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-09-24 18:16:17,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:17,912 INFO L225 Difference]: With dead ends: 1783 [2020-09-24 18:16:17,912 INFO L226 Difference]: Without dead ends: 1068 [2020-09-24 18:16:17,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:17,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2020-09-24 18:16:17,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 989. [2020-09-24 18:16:17,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 989 states. [2020-09-24 18:16:17,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1208 transitions. [2020-09-24 18:16:17,954 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1208 transitions. Word has length 201 [2020-09-24 18:16:17,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:17,955 INFO L479 AbstractCegarLoop]: Abstraction has 989 states and 1208 transitions. [2020-09-24 18:16:17,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:17,955 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1208 transitions. [2020-09-24 18:16:17,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 18:16:17,962 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:17,963 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:17,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:16:17,964 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:17,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:17,964 INFO L82 PathProgramCache]: Analyzing trace with hash -293213127, now seen corresponding path program 1 times [2020-09-24 18:16:17,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:17,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604629278] [2020-09-24 18:16:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:18,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:18,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:18,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:18,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:18,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:21,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:21,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-24 18:16:21,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:16:21,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3034 [2020-09-24 18:16:21,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:21,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:21,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-24 18:16:21,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 18:16:21,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:21,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:21,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:21,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:21,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:21,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:21,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:16:21,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:21,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:21,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:21,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:21,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:21,109 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:16:21,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604629278] [2020-09-24 18:16:21,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:21,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:21,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887400986] [2020-09-24 18:16:21,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:21,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:21,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:21,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:21,112 INFO L87 Difference]: Start difference. First operand 989 states and 1208 transitions. Second operand 3 states. [2020-09-24 18:16:21,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:21,149 INFO L93 Difference]: Finished difference Result 2602 states and 3215 transitions. [2020-09-24 18:16:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:21,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2020-09-24 18:16:21,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:21,159 INFO L225 Difference]: With dead ends: 2602 [2020-09-24 18:16:21,159 INFO L226 Difference]: Without dead ends: 1755 [2020-09-24 18:16:21,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:21,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2020-09-24 18:16:21,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1753. [2020-09-24 18:16:21,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1753 states. [2020-09-24 18:16:21,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1753 states to 1753 states and 2143 transitions. [2020-09-24 18:16:21,224 INFO L78 Accepts]: Start accepts. Automaton has 1753 states and 2143 transitions. Word has length 208 [2020-09-24 18:16:21,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:21,224 INFO L479 AbstractCegarLoop]: Abstraction has 1753 states and 2143 transitions. [2020-09-24 18:16:21,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 2143 transitions. [2020-09-24 18:16:21,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-24 18:16:21,230 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:21,230 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:21,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:16:21,230 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:21,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:21,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1793361374, now seen corresponding path program 1 times [2020-09-24 18:16:21,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:21,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160407491] [2020-09-24 18:16:21,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:21,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:21,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:21,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:21,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:21,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:24,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:24,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-09-24 18:16:24,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:16:24,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2827 [2020-09-24 18:16:24,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:24,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:24,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-24 18:16:24,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 18:16:24,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:24,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:24,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:24,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:24,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:24,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:24,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:16:24,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:24,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:16:24,166 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 18:16:24,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160407491] [2020-09-24 18:16:24,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:24,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:24,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348788520] [2020-09-24 18:16:24,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:24,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:24,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:24,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:24,170 INFO L87 Difference]: Start difference. First operand 1753 states and 2143 transitions. Second operand 3 states. [2020-09-24 18:16:24,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:24,254 INFO L93 Difference]: Finished difference Result 3364 states and 4150 transitions. [2020-09-24 18:16:24,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:24,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 209 [2020-09-24 18:16:24,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:24,265 INFO L225 Difference]: With dead ends: 3364 [2020-09-24 18:16:24,266 INFO L226 Difference]: Without dead ends: 2286 [2020-09-24 18:16:24,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:24,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2286 states. [2020-09-24 18:16:24,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2286 to 2286. [2020-09-24 18:16:24,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2286 states. [2020-09-24 18:16:24,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2286 states to 2286 states and 2805 transitions. [2020-09-24 18:16:24,354 INFO L78 Accepts]: Start accepts. Automaton has 2286 states and 2805 transitions. Word has length 209 [2020-09-24 18:16:24,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:24,355 INFO L479 AbstractCegarLoop]: Abstraction has 2286 states and 2805 transitions. [2020-09-24 18:16:24,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:24,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2286 states and 2805 transitions. [2020-09-24 18:16:24,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-24 18:16:24,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:24,363 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:24,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:16:24,363 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:24,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:24,364 INFO L82 PathProgramCache]: Analyzing trace with hash 528774517, now seen corresponding path program 1 times [2020-09-24 18:16:24,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:24,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2030537053] [2020-09-24 18:16:24,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:24,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:24,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:24,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:24,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:24,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:25,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:25,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-24 18:16:25,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:16:25,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1228 [2020-09-24 18:16:25,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-09-24 18:16:25,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 18:16:25,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:25,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:25,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:25,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:25,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:25,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:25,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:16:25,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:25,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:25,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:25,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:25,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:25,707 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-24 18:16:25,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2030537053] [2020-09-24 18:16:25,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:25,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:25,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553220589] [2020-09-24 18:16:25,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:25,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:25,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:25,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:25,712 INFO L87 Difference]: Start difference. First operand 2286 states and 2805 transitions. Second operand 3 states. [2020-09-24 18:16:26,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:26,058 INFO L93 Difference]: Finished difference Result 4928 states and 6248 transitions. [2020-09-24 18:16:26,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:26,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-09-24 18:16:26,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:26,077 INFO L225 Difference]: With dead ends: 4928 [2020-09-24 18:16:26,078 INFO L226 Difference]: Without dead ends: 2784 [2020-09-24 18:16:26,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:26,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2020-09-24 18:16:26,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2446. [2020-09-24 18:16:26,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2446 states. [2020-09-24 18:16:26,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 3057 transitions. [2020-09-24 18:16:26,204 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 3057 transitions. Word has length 224 [2020-09-24 18:16:26,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:26,205 INFO L479 AbstractCegarLoop]: Abstraction has 2446 states and 3057 transitions. [2020-09-24 18:16:26,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:26,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 3057 transitions. [2020-09-24 18:16:26,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-09-24 18:16:26,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:26,222 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:26,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 18:16:26,222 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:26,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:26,223 INFO L82 PathProgramCache]: Analyzing trace with hash 307978235, now seen corresponding path program 1 times [2020-09-24 18:16:26,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:26,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789158830] [2020-09-24 18:16:26,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:26,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:26,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:26,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:26,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:27,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:27,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:28,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:31,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:31,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 18:16:31,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 18:16:31,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 18:16:31,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:31,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:31,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-24 18:16:31,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 18:16:31,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:31,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:31,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:31,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:31,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:31,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:31,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:16:31,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:31,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:31,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:31,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:31,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:31,377 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-09-24 18:16:31,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789158830] [2020-09-24 18:16:31,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:31,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:31,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216012866] [2020-09-24 18:16:31,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:31,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:31,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:31,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:31,381 INFO L87 Difference]: Start difference. First operand 2446 states and 3057 transitions. Second operand 3 states. [2020-09-24 18:16:31,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:31,468 INFO L93 Difference]: Finished difference Result 4786 states and 6012 transitions. [2020-09-24 18:16:31,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:31,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2020-09-24 18:16:31,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:31,484 INFO L225 Difference]: With dead ends: 4786 [2020-09-24 18:16:31,484 INFO L226 Difference]: Without dead ends: 2482 [2020-09-24 18:16:31,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:31,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2020-09-24 18:16:31,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 2462. [2020-09-24 18:16:31,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2462 states. [2020-09-24 18:16:31,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2462 states to 2462 states and 3065 transitions. [2020-09-24 18:16:31,561 INFO L78 Accepts]: Start accepts. Automaton has 2462 states and 3065 transitions. Word has length 233 [2020-09-24 18:16:31,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:31,561 INFO L479 AbstractCegarLoop]: Abstraction has 2462 states and 3065 transitions. [2020-09-24 18:16:31,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:31,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2462 states and 3065 transitions. [2020-09-24 18:16:31,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-09-24 18:16:31,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:31,569 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:31,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 18:16:31,570 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:31,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:31,570 INFO L82 PathProgramCache]: Analyzing trace with hash 686294043, now seen corresponding path program 1 times [2020-09-24 18:16:31,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:31,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1149514303] [2020-09-24 18:16:31,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:31,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:31,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:31,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:31,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:31,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:32,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:33,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:33,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:33,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:36,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:36,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 18:16:36,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 18:16:36,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 18:16:36,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:36,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:36,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-24 18:16:36,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 18:16:36,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:36,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:36,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:36,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:36,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:36,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:36,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:16:36,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:36,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:36,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:36,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:36,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:36,721 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-24 18:16:36,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1149514303] [2020-09-24 18:16:36,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:36,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:36,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333350856] [2020-09-24 18:16:36,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:36,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:36,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:36,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:36,724 INFO L87 Difference]: Start difference. First operand 2462 states and 3065 transitions. Second operand 3 states. [2020-09-24 18:16:36,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:36,819 INFO L93 Difference]: Finished difference Result 7079 states and 8866 transitions. [2020-09-24 18:16:36,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:36,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2020-09-24 18:16:36,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:36,849 INFO L225 Difference]: With dead ends: 7079 [2020-09-24 18:16:36,849 INFO L226 Difference]: Without dead ends: 4759 [2020-09-24 18:16:36,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:36,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4759 states. [2020-09-24 18:16:36,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4759 to 4757. [2020-09-24 18:16:36,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4757 states. [2020-09-24 18:16:37,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4757 states to 4757 states and 5922 transitions. [2020-09-24 18:16:37,012 INFO L78 Accepts]: Start accepts. Automaton has 4757 states and 5922 transitions. Word has length 237 [2020-09-24 18:16:37,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:37,013 INFO L479 AbstractCegarLoop]: Abstraction has 4757 states and 5922 transitions. [2020-09-24 18:16:37,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:37,013 INFO L276 IsEmpty]: Start isEmpty. Operand 4757 states and 5922 transitions. [2020-09-24 18:16:37,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-24 18:16:37,025 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:37,025 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:37,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 18:16:37,026 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:37,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:37,027 INFO L82 PathProgramCache]: Analyzing trace with hash -2050439495, now seen corresponding path program 1 times [2020-09-24 18:16:37,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:37,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792750566] [2020-09-24 18:16:37,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:37,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:37,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:37,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:37,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:37,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:37,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:37,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:37,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:37,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:38,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:38,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:39,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:39,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:40,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:40,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:40,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:42,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:42,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-24 18:16:42,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-24 18:16:42,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 18:16:42,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:42,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:42,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 214 [2020-09-24 18:16:42,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 18:16:42,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:42,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:42,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:42,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:42,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:42,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:42,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:16:42,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:42,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:42,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:42,133 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-24 18:16:42,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792750566] [2020-09-24 18:16:42,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:42,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:42,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360747382] [2020-09-24 18:16:42,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:42,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:42,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:42,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:42,136 INFO L87 Difference]: Start difference. First operand 4757 states and 5922 transitions. Second operand 3 states. [2020-09-24 18:16:42,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:42,289 INFO L93 Difference]: Finished difference Result 9367 states and 11711 transitions. [2020-09-24 18:16:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:42,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-09-24 18:16:42,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:42,316 INFO L225 Difference]: With dead ends: 9367 [2020-09-24 18:16:42,316 INFO L226 Difference]: Without dead ends: 5904 [2020-09-24 18:16:42,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:42,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5904 states. [2020-09-24 18:16:42,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5904 to 5904. [2020-09-24 18:16:42,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5904 states. [2020-09-24 18:16:42,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5904 states to 5904 states and 7363 transitions. [2020-09-24 18:16:42,475 INFO L78 Accepts]: Start accepts. Automaton has 5904 states and 7363 transitions. Word has length 239 [2020-09-24 18:16:42,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:42,475 INFO L479 AbstractCegarLoop]: Abstraction has 5904 states and 7363 transitions. [2020-09-24 18:16:42,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:42,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5904 states and 7363 transitions. [2020-09-24 18:16:42,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-24 18:16:42,489 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:42,489 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:42,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 18:16:42,490 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:42,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:42,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1481414038, now seen corresponding path program 1 times [2020-09-24 18:16:42,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:42,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008440194] [2020-09-24 18:16:42,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:42,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:42,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:42,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:42,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-24 18:16:42,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:16:42,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-09-24 18:16:42,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:42,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:16:42,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 18:16:42,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-24 18:16:42,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:42,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:42,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:42,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:42,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:42,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:42,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:16:42,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:42,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:42,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:42,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:42,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:43,034 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-24 18:16:43,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008440194] [2020-09-24 18:16:43,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:43,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:16:43,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335981709] [2020-09-24 18:16:43,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:16:43,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:43,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:16:43,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:16:43,037 INFO L87 Difference]: Start difference. First operand 5904 states and 7363 transitions. Second operand 5 states. [2020-09-24 18:16:43,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:43,394 INFO L93 Difference]: Finished difference Result 12029 states and 15033 transitions. [2020-09-24 18:16:43,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:16:43,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 249 [2020-09-24 18:16:43,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:43,435 INFO L225 Difference]: With dead ends: 12029 [2020-09-24 18:16:43,436 INFO L226 Difference]: Without dead ends: 6216 [2020-09-24 18:16:43,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:16:43,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6216 states. [2020-09-24 18:16:43,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6216 to 5916. [2020-09-24 18:16:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5916 states. [2020-09-24 18:16:43,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5916 states to 5916 states and 7379 transitions. [2020-09-24 18:16:43,606 INFO L78 Accepts]: Start accepts. Automaton has 5916 states and 7379 transitions. Word has length 249 [2020-09-24 18:16:43,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:43,607 INFO L479 AbstractCegarLoop]: Abstraction has 5916 states and 7379 transitions. [2020-09-24 18:16:43,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:16:43,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5916 states and 7379 transitions. [2020-09-24 18:16:43,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-09-24 18:16:43,622 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:43,623 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:43,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 18:16:43,623 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:43,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:43,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1844265594, now seen corresponding path program 1 times [2020-09-24 18:16:43,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:43,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583364505] [2020-09-24 18:16:43,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:43,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:43,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:44,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:44,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-24 18:16:44,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:16:44,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-09-24 18:16:44,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:44,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:16:44,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 18:16:44,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-24 18:16:44,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:44,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:44,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:44,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:44,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:44,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:44,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:16:44,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:44,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:44,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:44,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:44,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:44,163 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-09-24 18:16:44,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583364505] [2020-09-24 18:16:44,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:44,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:16:44,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987417437] [2020-09-24 18:16:44,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:16:44,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:44,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:16:44,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:16:44,165 INFO L87 Difference]: Start difference. First operand 5916 states and 7379 transitions. Second operand 5 states. [2020-09-24 18:16:44,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:44,426 INFO L93 Difference]: Finished difference Result 11673 states and 14589 transitions. [2020-09-24 18:16:44,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:16:44,427 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 268 [2020-09-24 18:16:44,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:44,440 INFO L225 Difference]: With dead ends: 11673 [2020-09-24 18:16:44,441 INFO L226 Difference]: Without dead ends: 5910 [2020-09-24 18:16:44,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:16:44,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2020-09-24 18:16:44,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 5910. [2020-09-24 18:16:44,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5910 states. [2020-09-24 18:16:44,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 7369 transitions. [2020-09-24 18:16:44,596 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 7369 transitions. Word has length 268 [2020-09-24 18:16:44,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:44,597 INFO L479 AbstractCegarLoop]: Abstraction has 5910 states and 7369 transitions. [2020-09-24 18:16:44,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:16:44,597 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 7369 transitions. [2020-09-24 18:16:44,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-09-24 18:16:44,612 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:44,612 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:44,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 18:16:44,613 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:44,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:44,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1703791530, now seen corresponding path program 1 times [2020-09-24 18:16:44,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:44,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855102929] [2020-09-24 18:16:44,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:16:44,646 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:16:44,647 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:16:44,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 18:16:44,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:16:44 BoogieIcfgContainer [2020-09-24 18:16:44,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:16:44,721 INFO L168 Benchmark]: Toolchain (without parser) took 35010.55 ms. Allocated memory was 138.4 MB in the beginning and 586.7 MB in the end (delta: 448.3 MB). Free memory was 101.1 MB in the beginning and 159.9 MB in the end (delta: -58.7 MB). Peak memory consumption was 389.5 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:44,723 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-09-24 18:16:44,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.80 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 177.8 MB in the end (delta: -77.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:44,724 INFO L168 Benchmark]: Boogie Preprocessor took 62.69 ms. Allocated memory is still 201.9 MB. Free memory was 177.8 MB in the beginning and 174.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:44,726 INFO L168 Benchmark]: RCFGBuilder took 947.05 ms. Allocated memory is still 201.9 MB. Free memory was 174.7 MB in the beginning and 110.7 MB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:44,732 INFO L168 Benchmark]: TraceAbstraction took 33432.92 ms. Allocated memory was 201.9 MB in the beginning and 586.7 MB in the end (delta: 384.8 MB). Free memory was 110.7 MB in the beginning and 159.9 MB in the end (delta: -49.2 MB). Peak memory consumption was 335.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:44,737 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 557.80 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 177.8 MB in the end (delta: -77.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.69 ms. Allocated memory is still 201.9 MB. Free memory was 177.8 MB in the beginning and 174.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 947.05 ms. Allocated memory is still 201.9 MB. Free memory was 174.7 MB in the beginning and 110.7 MB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33432.92 ms. Allocated memory was 201.9 MB in the beginning and 586.7 MB in the end (delta: 384.8 MB). Free memory was 110.7 MB in the beginning and 159.9 MB in the end (delta: -49.2 MB). Peak memory consumption was 335.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L548] int s ; [L552] s = 12292 [L553] CALL ssl3_connect(12292) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L76] s__state = initial_state [L77] blastFlag = 0 [L78] tmp = __VERIFIER_nondet_int() [L79] cb = 0 [L80] ret = -1 [L81] skip = 0 [L82] tmp___0 = 0 [L83] COND TRUE s__info_callback != 0 [L84] cb = s__info_callback [L90] s__in_handshake ++ [L91] COND FALSE !(tmp___1 - 12288) [L97] COND TRUE 1 [L99] state = s__state [L100] COND TRUE s__state == 12292 [L202] s__new_session = 1 [L203] s__state = 4096 [L204] s__ctx__stats__sess_connect_renegotiate ++ [L209] s__server = 0 [L210] COND TRUE cb != 0 [L214] __cil_tmp55 = s__version - 65280 [L215] COND FALSE !(__cil_tmp55 != 768) [L220] s__type = 4096 [L221] COND FALSE !(s__init_buf___0 == 0) [L233] COND FALSE !(! tmp___4) [L237] COND FALSE !(! tmp___5) [L241] s__state = 4368 [L242] s__ctx__stats__sess_connect ++ [L243] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND TRUE s__state == 4368 [L247] s__shutdown = 0 [L248] ret = __VERIFIER_nondet_int() [L249] COND TRUE blastFlag == 0 [L250] blastFlag = 1 [L252] COND FALSE !(ret <= 0) [L255] s__state = 4384 [L256] s__init_num = 0 [L257] COND TRUE s__bbio != s__wbio [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND TRUE s__state == 4384 [L263] ret = __VERIFIER_nondet_int() [L264] COND TRUE blastFlag == 1 [L265] blastFlag = 2 [L267] COND FALSE !(ret <= 0) [L270] COND FALSE !(\read(s__hit)) [L273] s__state = 4400 [L275] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND TRUE s__state == 4400 [L279] COND FALSE !(s__s3__tmp__new_cipher__algorithms - 256) [L282] ret = __VERIFIER_nondet_int() [L283] COND TRUE blastFlag == 2 [L284] blastFlag = 3 [L286] COND FALSE !(ret <= 0) [L290] s__state = 4416 [L291] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND TRUE s__state == 4416 [L295] ret = __VERIFIER_nondet_int() [L296] COND TRUE blastFlag == 3 [L297] blastFlag = 4 [L299] COND FALSE !(ret <= 0) [L302] s__state = 4432 [L303] s__init_num = 0 [L304] COND FALSE !(! tmp___6) [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND FALSE !(s__state == 4416) [L136] COND FALSE !(s__state == 4417) [L139] COND TRUE s__state == 4432 [L311] ret = __VERIFIER_nondet_int() [L312] COND TRUE blastFlag == 4 [L543] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 383 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.2s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5321 SDtfs, 3460 SDslu, 3814 SDs, 0 SdLazy, 687 SolverSat, 169 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5916occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 792 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 27.9s InterpolantComputationTime, 2881 NumberOfCodeBlocks, 2881 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2597 ConstructedInterpolants, 0 QuantifiedInterpolants, 823928 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 645/645 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...