/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 SequenceOfStatements --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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/s3.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 11:09:55,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 11:09:55,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 11:09:55,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 11:09:55,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 11:09:55,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 11:09:55,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 11:09:55,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 11:09:55,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 11:09:55,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 11:09:55,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 11:09:55,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 11:09:55,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 11:09:55,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 11:09:55,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 11:09:55,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 11:09:55,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 11:09:55,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 11:09:55,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 11:09:55,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 11:09:55,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 11:09:55,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 11:09:55,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 11:09:55,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 11:09:55,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 11:09:55,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 11:09:55,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 11:09:55,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 11:09:55,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 11:09:55,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 11:09:55,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 11:09:55,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 11:09:55,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 11:09:55,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 11:09:55,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 11:09:55,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 11:09:55,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 11:09:55,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 11:09:55,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 11:09:55,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 11:09:55,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 11:09:55,375 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 [2020-10-13 11:09:55,422 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 11:09:55,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 11:09:55,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 11:09:55,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 11:09:55,424 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 11:09:55,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 11:09:55,428 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 11:09:55,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 11:09:55,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 11:09:55,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 11:09:55,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 11:09:55,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 11:09:55,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 11:09:55,429 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 11:09:55,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 11:09:55,429 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 11:09:55,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 11:09:55,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 11:09:55,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 11:09:55,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 11:09:55,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 11:09:55,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 11:09:55,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 11:09:55,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 11:09:55,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 11:09:55,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 11:09:55,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 11:09:55,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 11:09:55,432 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 11:09:55,433 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 -> SequenceOfStatements 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 11:09:55,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 11:09:55,744 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 11:09:55,747 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 11:09:55,749 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 11:09:55,749 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 11:09:55,750 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/s3.i [2020-10-13 11:09:55,808 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/937250cec/d9e1f5a093264c05b582881925930510/FLAG8a7398461 [2020-10-13 11:09:56,352 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 11:09:56,353 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/s3.i [2020-10-13 11:09:56,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/937250cec/d9e1f5a093264c05b582881925930510/FLAG8a7398461 [2020-10-13 11:09:56,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/937250cec/d9e1f5a093264c05b582881925930510 [2020-10-13 11:09:56,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 11:09:56,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 11:09:56,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 11:09:56,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 11:09:56,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 11:09:56,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:56" (1/1) ... [2020-10-13 11:09:56,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20abf48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:56, skipping insertion in model container [2020-10-13 11:09:56,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:56" (1/1) ... [2020-10-13 11:09:56,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 11:09:56,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 11:09:57,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 11:09:57,341 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 11:09:57,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 11:09:57,487 INFO L208 MainTranslator]: Completed translation [2020-10-13 11:09:57,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:57 WrapperNode [2020-10-13 11:09:57,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 11:09:57,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 11:09:57,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 11:09:57,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 11:09:57,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:57" (1/1) ... [2020-10-13 11:09:57,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:57" (1/1) ... [2020-10-13 11:09:57,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:57" (1/1) ... [2020-10-13 11:09:57,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:57" (1/1) ... [2020-10-13 11:09:57,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:57" (1/1) ... [2020-10-13 11:09:57,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:57" (1/1) ... [2020-10-13 11:09:57,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:57" (1/1) ... [2020-10-13 11:09:57,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 11:09:57,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 11:09:57,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 11:09:57,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 11:09:57,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:57" (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 [2020-10-13 11:09:57,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 11:09:57,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 11:09:57,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2020-10-13 11:09:57,770 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2020-10-13 11:09:57,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 11:09:57,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-10-13 11:09:57,771 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2020-10-13 11:09:57,771 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 11:09:57,771 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 11:09:57,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 11:09:57,772 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 11:09:57,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 11:09:57,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 11:09:57,773 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 11:09:57,773 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2020-10-13 11:09:57,773 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2020-10-13 11:09:57,773 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-10-13 11:09:57,773 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2020-10-13 11:09:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 11:09:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 11:09:57,774 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 11:09:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 11:09:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 11:09:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 11:09:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 11:09:57,775 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 11:09:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 11:09:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 11:09:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 11:09:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 11:09:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 11:09:57,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 11:09:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 11:09:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 11:09:57,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 11:09:58,353 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-13 11:09:58,982 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-13 11:09:58,982 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-13 11:09:59,006 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 11:09:59,006 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 11:09:59,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:59 BoogieIcfgContainer [2020-10-13 11:09:59,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 11:09:59,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 11:09:59,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 11:09:59,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 11:09:59,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:56" (1/3) ... [2020-10-13 11:09:59,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41270629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:59, skipping insertion in model container [2020-10-13 11:09:59,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:57" (2/3) ... [2020-10-13 11:09:59,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41270629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:59, skipping insertion in model container [2020-10-13 11:09:59,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:59" (3/3) ... [2020-10-13 11:09:59,018 INFO L109 eAbstractionObserver]: Analyzing ICFG s3.i [2020-10-13 11:09:59,028 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 11:09:59,035 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 11:09:59,048 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 11:09:59,073 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 11:09:59,073 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 11:09:59,073 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 11:09:59,074 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 11:09:59,074 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 11:09:59,074 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 11:09:59,074 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 11:09:59,074 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 11:09:59,095 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2020-10-13 11:09:59,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 11:09:59,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:09:59,104 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] [2020-10-13 11:09:59,105 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:09:59,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:09:59,110 INFO L82 PathProgramCache]: Analyzing trace with hash -201939892, now seen corresponding path program 1 times [2020-10-13 11:09:59,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:09:59,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [359029468] [2020-10-13 11:09:59,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:09:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:09:59,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:09:59,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:00,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:00,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:00,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-13 11:10:00,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:00,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1217 [2020-10-13 11:10:00,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:00,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 11:10:00,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 11:10:00,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 11:10:00,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 11:10:00,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:00,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:00,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:00,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:00,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:00,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 11:10:00,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:00,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:00,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:00,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:00,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:00,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 11:10:00,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [359029468] [2020-10-13 11:10:00,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:00,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 11:10:00,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142567324] [2020-10-13 11:10:00,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 11:10:00,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:00,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 11:10:00,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 11:10:00,726 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 7 states. [2020-10-13 11:10:01,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:01,711 INFO L93 Difference]: Finished difference Result 271 states and 444 transitions. [2020-10-13 11:10:01,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 11:10:01,713 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-10-13 11:10:01,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:01,732 INFO L225 Difference]: With dead ends: 271 [2020-10-13 11:10:01,732 INFO L226 Difference]: Without dead ends: 124 [2020-10-13 11:10:01,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-13 11:10:01,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-13 11:10:01,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2020-10-13 11:10:01,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-13 11:10:01,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 180 transitions. [2020-10-13 11:10:01,784 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 180 transitions. Word has length 30 [2020-10-13 11:10:01,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:01,785 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 180 transitions. [2020-10-13 11:10:01,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 11:10:01,785 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 180 transitions. [2020-10-13 11:10:01,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-13 11:10:01,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:01,787 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:01,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 11:10:01,788 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:01,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:01,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1808875329, now seen corresponding path program 1 times [2020-10-13 11:10:01,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:01,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248820708] [2020-10-13 11:10:01,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:01,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:01,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:02,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:03,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:04,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:04,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-13 11:10:04,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:10:04,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2849 [2020-10-13 11:10:04,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:04,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:04,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-13 11:10:04,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 11:10:04,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:04,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:04,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:04,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:04,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:04,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:04,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:10:04,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:04,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:04,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:04,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:04,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:04,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 11:10:04,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248820708] [2020-10-13 11:10:04,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:04,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 11:10:04,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154417791] [2020-10-13 11:10:04,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 11:10:04,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:04,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 11:10:04,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:04,785 INFO L87 Difference]: Start difference. First operand 123 states and 180 transitions. Second operand 6 states. [2020-10-13 11:10:05,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:05,709 INFO L93 Difference]: Finished difference Result 263 states and 389 transitions. [2020-10-13 11:10:05,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 11:10:05,710 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2020-10-13 11:10:05,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:05,712 INFO L225 Difference]: With dead ends: 263 [2020-10-13 11:10:05,713 INFO L226 Difference]: Without dead ends: 156 [2020-10-13 11:10:05,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 11:10:05,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-13 11:10:05,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 140. [2020-10-13 11:10:05,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-13 11:10:05,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 208 transitions. [2020-10-13 11:10:05,730 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 208 transitions. Word has length 45 [2020-10-13 11:10:05,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:05,730 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 208 transitions. [2020-10-13 11:10:05,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 11:10:05,730 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 208 transitions. [2020-10-13 11:10:05,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-13 11:10:05,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:05,733 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:05,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 11:10:05,733 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:05,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:05,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1841858773, now seen corresponding path program 1 times [2020-10-13 11:10:05,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:05,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229916663] [2020-10-13 11:10:05,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:05,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:06,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:06,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:06,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:06,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 11:10:06,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:06,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 989 [2020-10-13 11:10:06,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:06,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:10:06,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 11:10:06,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 11:10:06,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:06,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:06,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:06,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:06,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:06,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:06,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:10:06,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:06,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:06,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:06,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:06,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:06,868 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 11:10:06,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229916663] [2020-10-13 11:10:06,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:06,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:06,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968398828] [2020-10-13 11:10:06,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:06,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:06,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:06,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:06,870 INFO L87 Difference]: Start difference. First operand 140 states and 208 transitions. Second operand 5 states. [2020-10-13 11:10:07,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:07,539 INFO L93 Difference]: Finished difference Result 299 states and 449 transitions. [2020-10-13 11:10:07,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:07,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-10-13 11:10:07,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:07,542 INFO L225 Difference]: With dead ends: 299 [2020-10-13 11:10:07,542 INFO L226 Difference]: Without dead ends: 175 [2020-10-13 11:10:07,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:07,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-13 11:10:07,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 158. [2020-10-13 11:10:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-13 11:10:07,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 238 transitions. [2020-10-13 11:10:07,567 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 238 transitions. Word has length 60 [2020-10-13 11:10:07,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:07,572 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 238 transitions. [2020-10-13 11:10:07,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:07,572 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 238 transitions. [2020-10-13 11:10:07,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 11:10:07,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:07,576 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:07,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 11:10:07,576 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:07,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:07,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1929264221, now seen corresponding path program 1 times [2020-10-13 11:10:07,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:07,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503294827] [2020-10-13 11:10:07,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:07,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:07,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:08,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:08,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-13 11:10:08,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:10:08,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1195 [2020-10-13 11:10:08,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:08,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:08,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:10:08,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 11:10:08,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:10:08,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:08,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:08,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:08,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:08,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:08,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:10:08,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:08,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:08,947 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 11:10:08,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503294827] [2020-10-13 11:10:08,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:08,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:08,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797240326] [2020-10-13 11:10:08,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:08,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:08,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:08,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:08,950 INFO L87 Difference]: Start difference. First operand 158 states and 238 transitions. Second operand 5 states. [2020-10-13 11:10:09,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:09,847 INFO L93 Difference]: Finished difference Result 395 states and 600 transitions. [2020-10-13 11:10:09,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:09,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-10-13 11:10:09,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:09,855 INFO L225 Difference]: With dead ends: 395 [2020-10-13 11:10:09,855 INFO L226 Difference]: Without dead ends: 253 [2020-10-13 11:10:09,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:09,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-13 11:10:09,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 183. [2020-10-13 11:10:09,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-13 11:10:09,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 281 transitions. [2020-10-13 11:10:09,876 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 281 transitions. Word has length 78 [2020-10-13 11:10:09,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:09,876 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 281 transitions. [2020-10-13 11:10:09,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:09,876 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 281 transitions. [2020-10-13 11:10:09,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 11:10:09,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:09,878 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:09,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 11:10:09,879 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:09,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:09,879 INFO L82 PathProgramCache]: Analyzing trace with hash -2063277727, now seen corresponding path program 1 times [2020-10-13 11:10:09,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:09,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274369789] [2020-10-13 11:10:09,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:09,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:10,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:10,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:11,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:11,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-13 11:10:11,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:11,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1715 [2020-10-13 11:10:11,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:11,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:10:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 11:10:11,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:11,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:11,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:11,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:11,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:11,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:11,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:10:11,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:11,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:11,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:11,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:11,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:11,718 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 11:10:11,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274369789] [2020-10-13 11:10:11,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:11,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:11,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270541924] [2020-10-13 11:10:11,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:11,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:11,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:11,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:11,720 INFO L87 Difference]: Start difference. First operand 183 states and 281 transitions. Second operand 5 states. [2020-10-13 11:10:12,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:12,411 INFO L93 Difference]: Finished difference Result 392 states and 606 transitions. [2020-10-13 11:10:12,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:12,412 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-10-13 11:10:12,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:12,414 INFO L225 Difference]: With dead ends: 392 [2020-10-13 11:10:12,414 INFO L226 Difference]: Without dead ends: 225 [2020-10-13 11:10:12,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:12,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-10-13 11:10:12,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 203. [2020-10-13 11:10:12,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-13 11:10:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 315 transitions. [2020-10-13 11:10:12,424 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 315 transitions. Word has length 78 [2020-10-13 11:10:12,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:12,425 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 315 transitions. [2020-10-13 11:10:12,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:12,425 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 315 transitions. [2020-10-13 11:10:12,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 11:10:12,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:12,427 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:12,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 11:10:12,427 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:12,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:12,427 INFO L82 PathProgramCache]: Analyzing trace with hash 317933426, now seen corresponding path program 1 times [2020-10-13 11:10:12,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:12,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873989212] [2020-10-13 11:10:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:12,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:12,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:13,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:13,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 11:10:13,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:10:13,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 998 [2020-10-13 11:10:13,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:13,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:13,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:10:13,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 11:10:13,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:13,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:13,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:13,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:13,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:13,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:13,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 11:10:13,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:13,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:13,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:13,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:13,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 11:10:13,588 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 11:10:13,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873989212] [2020-10-13 11:10:13,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:13,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:13,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467804030] [2020-10-13 11:10:13,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:13,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:13,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:13,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:13,591 INFO L87 Difference]: Start difference. First operand 203 states and 315 transitions. Second operand 5 states. [2020-10-13 11:10:14,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:14,387 INFO L93 Difference]: Finished difference Result 457 states and 706 transitions. [2020-10-13 11:10:14,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:14,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 79 [2020-10-13 11:10:14,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:14,390 INFO L225 Difference]: With dead ends: 457 [2020-10-13 11:10:14,391 INFO L226 Difference]: Without dead ends: 270 [2020-10-13 11:10:14,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:14,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-13 11:10:14,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 204. [2020-10-13 11:10:14,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-10-13 11:10:14,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 316 transitions. [2020-10-13 11:10:14,401 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 316 transitions. Word has length 79 [2020-10-13 11:10:14,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:14,402 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 316 transitions. [2020-10-13 11:10:14,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:14,402 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 316 transitions. [2020-10-13 11:10:14,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 11:10:14,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:14,404 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:14,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 11:10:14,404 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:14,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:14,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1261744606, now seen corresponding path program 1 times [2020-10-13 11:10:14,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:14,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317498347] [2020-10-13 11:10:14,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:14,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:14,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:15,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:15,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 11:10:15,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:10:15,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 952 [2020-10-13 11:10:15,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:15,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:15,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:10:15,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 11:10:15,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:15,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:15,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:15,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:15,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:15,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:15,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 11:10:15,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:15,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:15,492 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 11:10:15,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317498347] [2020-10-13 11:10:15,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:15,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:15,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187953298] [2020-10-13 11:10:15,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:15,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:15,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:15,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:15,495 INFO L87 Difference]: Start difference. First operand 204 states and 316 transitions. Second operand 5 states. [2020-10-13 11:10:16,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:16,292 INFO L93 Difference]: Finished difference Result 458 states and 706 transitions. [2020-10-13 11:10:16,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:16,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-10-13 11:10:16,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:16,294 INFO L225 Difference]: With dead ends: 458 [2020-10-13 11:10:16,295 INFO L226 Difference]: Without dead ends: 270 [2020-10-13 11:10:16,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:16,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-13 11:10:16,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 205. [2020-10-13 11:10:16,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 11:10:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 317 transitions. [2020-10-13 11:10:16,312 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 317 transitions. Word has length 80 [2020-10-13 11:10:16,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:16,312 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 317 transitions. [2020-10-13 11:10:16,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 317 transitions. [2020-10-13 11:10:16,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-13 11:10:16,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:16,319 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:16,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 11:10:16,320 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:16,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:16,320 INFO L82 PathProgramCache]: Analyzing trace with hash 454900045, now seen corresponding path program 1 times [2020-10-13 11:10:16,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:16,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319866157] [2020-10-13 11:10:16,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:16,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:16,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:17,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:17,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 11:10:17,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:10:17,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 927 [2020-10-13 11:10:17,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:17,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:17,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:10:17,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 11:10:17,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:10:17,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:17,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:17,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:17,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:17,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:17,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 11:10:17,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:17,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:17,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:17,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:17,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:17,395 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 11:10:17,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319866157] [2020-10-13 11:10:17,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:17,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:17,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487464497] [2020-10-13 11:10:17,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:17,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:17,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:17,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:17,398 INFO L87 Difference]: Start difference. First operand 205 states and 317 transitions. Second operand 5 states. [2020-10-13 11:10:18,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:18,198 INFO L93 Difference]: Finished difference Result 453 states and 699 transitions. [2020-10-13 11:10:18,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:18,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2020-10-13 11:10:18,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:18,202 INFO L225 Difference]: With dead ends: 453 [2020-10-13 11:10:18,202 INFO L226 Difference]: Without dead ends: 264 [2020-10-13 11:10:18,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:18,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-13 11:10:18,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 206. [2020-10-13 11:10:18,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-13 11:10:18,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 318 transitions. [2020-10-13 11:10:18,215 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 318 transitions. Word has length 81 [2020-10-13 11:10:18,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:18,215 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 318 transitions. [2020-10-13 11:10:18,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:18,216 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 318 transitions. [2020-10-13 11:10:18,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-13 11:10:18,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:18,218 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:18,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 11:10:18,218 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:18,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:18,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1146918067, now seen corresponding path program 1 times [2020-10-13 11:10:18,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:18,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424934705] [2020-10-13 11:10:18,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:18,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:18,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:19,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:19,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:21,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:21,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-13 11:10:21,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:10:21,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3470 [2020-10-13 11:10:21,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:10:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 11:10:21,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:21,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:21,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:21,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:21,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:21,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:21,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 11:10:21,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:21,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:21,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:21,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:21,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:21,838 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 11:10:21,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424934705] [2020-10-13 11:10:21,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:21,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:21,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878629373] [2020-10-13 11:10:21,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:21,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:21,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:21,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:21,841 INFO L87 Difference]: Start difference. First operand 206 states and 318 transitions. Second operand 5 states. [2020-10-13 11:10:22,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:22,927 INFO L93 Difference]: Finished difference Result 454 states and 699 transitions. [2020-10-13 11:10:22,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:22,928 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-10-13 11:10:22,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:22,931 INFO L225 Difference]: With dead ends: 454 [2020-10-13 11:10:22,931 INFO L226 Difference]: Without dead ends: 264 [2020-10-13 11:10:22,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:22,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-13 11:10:22,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 206. [2020-10-13 11:10:22,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-13 11:10:22,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 317 transitions. [2020-10-13 11:10:22,945 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 317 transitions. Word has length 96 [2020-10-13 11:10:22,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:22,946 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 317 transitions. [2020-10-13 11:10:22,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:22,946 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 317 transitions. [2020-10-13 11:10:22,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-13 11:10:22,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:22,948 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:22,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 11:10:22,949 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:22,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:22,950 INFO L82 PathProgramCache]: Analyzing trace with hash -898771573, now seen corresponding path program 1 times [2020-10-13 11:10:22,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:22,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736311761] [2020-10-13 11:10:22,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:23,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:23,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:23,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:24,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:24,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-13 11:10:24,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:24,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1627 [2020-10-13 11:10:24,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:24,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:10:24,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-13 11:10:24,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 11:10:24,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:10:24,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:24,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:24,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:24,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:24,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:24,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:10:24,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:24,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:24,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:24,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:24,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:24,753 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:10:24,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736311761] [2020-10-13 11:10:24,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:24,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:24,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620319830] [2020-10-13 11:10:24,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:24,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:24,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:24,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:24,757 INFO L87 Difference]: Start difference. First operand 206 states and 317 transitions. Second operand 5 states. [2020-10-13 11:10:25,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:25,576 INFO L93 Difference]: Finished difference Result 443 states and 686 transitions. [2020-10-13 11:10:25,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:25,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-10-13 11:10:25,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:25,579 INFO L225 Difference]: With dead ends: 443 [2020-10-13 11:10:25,579 INFO L226 Difference]: Without dead ends: 253 [2020-10-13 11:10:25,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:25,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-13 11:10:25,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 228. [2020-10-13 11:10:25,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-13 11:10:25,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 355 transitions. [2020-10-13 11:10:25,589 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 355 transitions. Word has length 96 [2020-10-13 11:10:25,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:25,590 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 355 transitions. [2020-10-13 11:10:25,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:25,590 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 355 transitions. [2020-10-13 11:10:25,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-13 11:10:25,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:25,592 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-13 11:10:25,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 11:10:25,592 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:25,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:25,593 INFO L82 PathProgramCache]: Analyzing trace with hash 87946936, now seen corresponding path program 1 times [2020-10-13 11:10:25,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:25,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160934032] [2020-10-13 11:10:25,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:25,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:25,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:26,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:26,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:26,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 11:10:26,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:26,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1175 [2020-10-13 11:10:26,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:26,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:26,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:10:26,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 11:10:26,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:26,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:26,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:26,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:26,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:26,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:26,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:10:26,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:26,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:26,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:26,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:26,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:26,887 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 11:10:26,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160934032] [2020-10-13 11:10:26,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:26,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:26,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658041925] [2020-10-13 11:10:26,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:26,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:26,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:26,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:26,893 INFO L87 Difference]: Start difference. First operand 228 states and 355 transitions. Second operand 5 states. [2020-10-13 11:10:27,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:27,697 INFO L93 Difference]: Finished difference Result 498 states and 773 transitions. [2020-10-13 11:10:27,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:27,698 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2020-10-13 11:10:27,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:27,700 INFO L225 Difference]: With dead ends: 498 [2020-10-13 11:10:27,702 INFO L226 Difference]: Without dead ends: 286 [2020-10-13 11:10:27,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:27,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-13 11:10:27,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 228. [2020-10-13 11:10:27,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-13 11:10:27,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 354 transitions. [2020-10-13 11:10:27,713 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 354 transitions. Word has length 99 [2020-10-13 11:10:27,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:27,713 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 354 transitions. [2020-10-13 11:10:27,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:27,713 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 354 transitions. [2020-10-13 11:10:27,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 11:10:27,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:27,715 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-13 11:10:27,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 11:10:27,715 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:27,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:27,715 INFO L82 PathProgramCache]: Analyzing trace with hash -430040663, now seen corresponding path program 1 times [2020-10-13 11:10:27,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:27,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473943773] [2020-10-13 11:10:27,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:27,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:27,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:28,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:28,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:28,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-13 11:10:28,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:28,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1129 [2020-10-13 11:10:28,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:10:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 11:10:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:28,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:28,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:28,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:28,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:28,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:28,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:10:28,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:28,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:28,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:28,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:28,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:28,972 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 11:10:28,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473943773] [2020-10-13 11:10:28,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:28,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:28,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246127930] [2020-10-13 11:10:28,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:28,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:28,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:28,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:28,975 INFO L87 Difference]: Start difference. First operand 228 states and 354 transitions. Second operand 5 states. [2020-10-13 11:10:29,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:29,767 INFO L93 Difference]: Finished difference Result 495 states and 767 transitions. [2020-10-13 11:10:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:29,768 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-10-13 11:10:29,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:29,771 INFO L225 Difference]: With dead ends: 495 [2020-10-13 11:10:29,771 INFO L226 Difference]: Without dead ends: 283 [2020-10-13 11:10:29,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:29,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-10-13 11:10:29,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 228. [2020-10-13 11:10:29,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-13 11:10:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 353 transitions. [2020-10-13 11:10:29,782 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 353 transitions. Word has length 100 [2020-10-13 11:10:29,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:29,783 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 353 transitions. [2020-10-13 11:10:29,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:29,783 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 353 transitions. [2020-10-13 11:10:29,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-13 11:10:29,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:29,785 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:29,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 11:10:29,785 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:29,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:29,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1885936060, now seen corresponding path program 1 times [2020-10-13 11:10:29,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:29,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114214563] [2020-10-13 11:10:29,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:29,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:29,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:30,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:31,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:31,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 11:10:31,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:31,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1970 [2020-10-13 11:10:31,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:31,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:10:31,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-13 11:10:31,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 11:10:31,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:31,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:31,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:31,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:31,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:31,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:31,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:10:31,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:31,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:31,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:31,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:31,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:10:31,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114214563] [2020-10-13 11:10:31,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:31,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:31,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550482877] [2020-10-13 11:10:31,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:31,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:31,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:31,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:31,872 INFO L87 Difference]: Start difference. First operand 228 states and 353 transitions. Second operand 5 states. [2020-10-13 11:10:32,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:32,775 INFO L93 Difference]: Finished difference Result 535 states and 830 transitions. [2020-10-13 11:10:32,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:32,776 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-10-13 11:10:32,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:32,778 INFO L225 Difference]: With dead ends: 535 [2020-10-13 11:10:32,778 INFO L226 Difference]: Without dead ends: 323 [2020-10-13 11:10:32,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:32,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-13 11:10:32,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 253. [2020-10-13 11:10:32,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-13 11:10:32,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 396 transitions. [2020-10-13 11:10:32,790 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 396 transitions. Word has length 103 [2020-10-13 11:10:32,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:32,790 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 396 transitions. [2020-10-13 11:10:32,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:32,791 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 396 transitions. [2020-10-13 11:10:32,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-13 11:10:32,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:32,792 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:32,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 11:10:32,792 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:32,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:32,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1661106417, now seen corresponding path program 1 times [2020-10-13 11:10:32,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:32,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761294142] [2020-10-13 11:10:32,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:32,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:32,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:33,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:34,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:34,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 11:10:34,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:34,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1716 [2020-10-13 11:10:34,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:10:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-13 11:10:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 11:10:34,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:34,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:34,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:34,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:34,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:34,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:34,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:10:34,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:34,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:34,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:34,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:34,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:34,626 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:10:34,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761294142] [2020-10-13 11:10:34,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:34,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:34,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191741977] [2020-10-13 11:10:34,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:34,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:34,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:34,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:34,628 INFO L87 Difference]: Start difference. First operand 253 states and 396 transitions. Second operand 5 states. [2020-10-13 11:10:35,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:35,684 INFO L93 Difference]: Finished difference Result 557 states and 868 transitions. [2020-10-13 11:10:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:35,690 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-13 11:10:35,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:35,692 INFO L225 Difference]: With dead ends: 557 [2020-10-13 11:10:35,692 INFO L226 Difference]: Without dead ends: 320 [2020-10-13 11:10:35,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:35,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-13 11:10:35,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 254. [2020-10-13 11:10:35,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-13 11:10:35,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 397 transitions. [2020-10-13 11:10:35,704 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 397 transitions. Word has length 104 [2020-10-13 11:10:35,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:35,704 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 397 transitions. [2020-10-13 11:10:35,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:35,704 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 397 transitions. [2020-10-13 11:10:35,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-13 11:10:35,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:35,706 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:35,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 11:10:35,706 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:35,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:35,707 INFO L82 PathProgramCache]: Analyzing trace with hash -49565633, now seen corresponding path program 1 times [2020-10-13 11:10:35,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:35,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1895495785] [2020-10-13 11:10:35,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:35,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:35,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:36,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:37,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:37,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 11:10:37,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:37,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1662 [2020-10-13 11:10:37,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:10:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-13 11:10:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 11:10:37,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:37,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:37,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:37,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:37,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:37,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:37,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:10:37,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:37,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:37,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:37,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:37,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:10:37,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1895495785] [2020-10-13 11:10:37,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:37,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:37,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659349936] [2020-10-13 11:10:37,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:37,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:37,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:37,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:37,489 INFO L87 Difference]: Start difference. First operand 254 states and 397 transitions. Second operand 5 states. [2020-10-13 11:10:38,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:38,376 INFO L93 Difference]: Finished difference Result 558 states and 868 transitions. [2020-10-13 11:10:38,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:38,376 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-10-13 11:10:38,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:38,378 INFO L225 Difference]: With dead ends: 558 [2020-10-13 11:10:38,379 INFO L226 Difference]: Without dead ends: 320 [2020-10-13 11:10:38,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:38,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-13 11:10:38,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 255. [2020-10-13 11:10:38,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-10-13 11:10:38,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 398 transitions. [2020-10-13 11:10:38,389 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 398 transitions. Word has length 105 [2020-10-13 11:10:38,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:38,390 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 398 transitions. [2020-10-13 11:10:38,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:38,390 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 398 transitions. [2020-10-13 11:10:38,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-13 11:10:38,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:38,391 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:38,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 11:10:38,392 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:38,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:38,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1541011700, now seen corresponding path program 1 times [2020-10-13 11:10:38,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:38,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [305825915] [2020-10-13 11:10:38,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:38,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:38,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:38,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:39,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:39,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 11:10:39,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:39,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1325 [2020-10-13 11:10:39,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:10:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-13 11:10:39,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 11:10:39,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:39,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:39,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:39,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:39,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:39,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:39,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:10:39,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:39,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:39,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:39,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:39,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:39,829 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:10:39,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [305825915] [2020-10-13 11:10:39,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:39,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:39,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564867942] [2020-10-13 11:10:39,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:39,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:39,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:39,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:39,831 INFO L87 Difference]: Start difference. First operand 255 states and 398 transitions. Second operand 5 states. [2020-10-13 11:10:40,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:40,670 INFO L93 Difference]: Finished difference Result 553 states and 861 transitions. [2020-10-13 11:10:40,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:40,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2020-10-13 11:10:40,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:40,681 INFO L225 Difference]: With dead ends: 553 [2020-10-13 11:10:40,681 INFO L226 Difference]: Without dead ends: 314 [2020-10-13 11:10:40,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:40,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-10-13 11:10:40,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 252. [2020-10-13 11:10:40,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-13 11:10:40,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 395 transitions. [2020-10-13 11:10:40,695 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 395 transitions. Word has length 106 [2020-10-13 11:10:40,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:40,695 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 395 transitions. [2020-10-13 11:10:40,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:40,695 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 395 transitions. [2020-10-13 11:10:40,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 11:10:40,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:40,697 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:40,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 11:10:40,697 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:40,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:40,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1233272466, now seen corresponding path program 1 times [2020-10-13 11:10:40,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:40,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684431919] [2020-10-13 11:10:40,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:40,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:40,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:41,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:42,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:42,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 11:10:42,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:42,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1715 [2020-10-13 11:10:42,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:42,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:42,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 11:10:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 11:10:42,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:42,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:42,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:42,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:42,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:42,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:42,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:10:42,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:42,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:42,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:42,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:42,530 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:10:42,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684431919] [2020-10-13 11:10:42,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:42,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:42,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455648855] [2020-10-13 11:10:42,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:42,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:42,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:42,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:42,533 INFO L87 Difference]: Start difference. First operand 252 states and 395 transitions. Second operand 5 states. [2020-10-13 11:10:43,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:43,446 INFO L93 Difference]: Finished difference Result 583 states and 914 transitions. [2020-10-13 11:10:43,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:43,447 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-13 11:10:43,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:43,449 INFO L225 Difference]: With dead ends: 583 [2020-10-13 11:10:43,450 INFO L226 Difference]: Without dead ends: 347 [2020-10-13 11:10:43,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:43,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-10-13 11:10:43,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 277. [2020-10-13 11:10:43,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-13 11:10:43,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 438 transitions. [2020-10-13 11:10:43,462 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 438 transitions. Word has length 109 [2020-10-13 11:10:43,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:43,463 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 438 transitions. [2020-10-13 11:10:43,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:43,463 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 438 transitions. [2020-10-13 11:10:43,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 11:10:43,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:43,464 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:43,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 11:10:43,465 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:43,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:43,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1099258960, now seen corresponding path program 1 times [2020-10-13 11:10:43,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:43,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990181858] [2020-10-13 11:10:43,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:43,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:43,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:44,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:45,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:45,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 11:10:45,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:45,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2116 [2020-10-13 11:10:45,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:45,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:45,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 11:10:45,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 11:10:45,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:45,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:45,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:45,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:45,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:45,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:45,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:10:45,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:45,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:45,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:45,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:45,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:10:45,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990181858] [2020-10-13 11:10:45,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:45,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:45,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268545399] [2020-10-13 11:10:45,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:45,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:45,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:45,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:45,699 INFO L87 Difference]: Start difference. First operand 277 states and 438 transitions. Second operand 5 states. [2020-10-13 11:10:46,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:46,672 INFO L93 Difference]: Finished difference Result 633 states and 1000 transitions. [2020-10-13 11:10:46,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:46,672 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-13 11:10:46,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:46,675 INFO L225 Difference]: With dead ends: 633 [2020-10-13 11:10:46,675 INFO L226 Difference]: Without dead ends: 372 [2020-10-13 11:10:46,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:46,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-10-13 11:10:46,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 277. [2020-10-13 11:10:46,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-10-13 11:10:46,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 438 transitions. [2020-10-13 11:10:46,688 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 438 transitions. Word has length 109 [2020-10-13 11:10:46,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:46,688 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 438 transitions. [2020-10-13 11:10:46,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:46,688 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 438 transitions. [2020-10-13 11:10:46,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-13 11:10:46,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:46,690 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:46,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 11:10:46,690 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:46,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:46,690 INFO L82 PathProgramCache]: Analyzing trace with hash -427677085, now seen corresponding path program 1 times [2020-10-13 11:10:46,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:46,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381994688] [2020-10-13 11:10:46,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:46,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:46,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:47,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:48,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:48,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 11:10:48,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:48,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1642 [2020-10-13 11:10:48,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:48,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:48,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 11:10:48,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 11:10:48,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:48,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:48,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:48,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:48,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:48,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:48,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:10:48,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:48,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:48,432 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:10:48,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381994688] [2020-10-13 11:10:48,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:48,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:48,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557619235] [2020-10-13 11:10:48,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:48,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:48,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:48,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:48,434 INFO L87 Difference]: Start difference. First operand 277 states and 438 transitions. Second operand 5 states. [2020-10-13 11:10:49,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:49,311 INFO L93 Difference]: Finished difference Result 630 states and 995 transitions. [2020-10-13 11:10:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:49,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-10-13 11:10:49,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:49,314 INFO L225 Difference]: With dead ends: 630 [2020-10-13 11:10:49,314 INFO L226 Difference]: Without dead ends: 369 [2020-10-13 11:10:49,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:49,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-10-13 11:10:49,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 303. [2020-10-13 11:10:49,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-10-13 11:10:49,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 482 transitions. [2020-10-13 11:10:49,331 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 482 transitions. Word has length 110 [2020-10-13 11:10:49,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:49,332 INFO L479 AbstractCegarLoop]: Abstraction has 303 states and 482 transitions. [2020-10-13 11:10:49,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:49,332 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 482 transitions. [2020-10-13 11:10:49,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-13 11:10:49,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:49,333 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:49,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 11:10:49,334 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:49,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:49,334 INFO L82 PathProgramCache]: Analyzing trace with hash -287128475, now seen corresponding path program 1 times [2020-10-13 11:10:49,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:49,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681957544] [2020-10-13 11:10:49,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:49,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:49,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:49,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:51,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:51,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 11:10:51,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1897 [2020-10-13 11:10:51,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 11:10:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 11:10:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:51,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:51,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:51,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:51,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:51,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:51,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:10:51,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:51,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:51,338 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:10:51,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681957544] [2020-10-13 11:10:51,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:51,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:51,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489175789] [2020-10-13 11:10:51,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:51,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:51,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:51,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:51,340 INFO L87 Difference]: Start difference. First operand 303 states and 482 transitions. Second operand 5 states. [2020-10-13 11:10:52,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:52,291 INFO L93 Difference]: Finished difference Result 657 states and 1040 transitions. [2020-10-13 11:10:52,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:52,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-10-13 11:10:52,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:52,294 INFO L225 Difference]: With dead ends: 657 [2020-10-13 11:10:52,294 INFO L226 Difference]: Without dead ends: 370 [2020-10-13 11:10:52,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:52,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-13 11:10:52,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 278. [2020-10-13 11:10:52,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-13 11:10:52,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 439 transitions. [2020-10-13 11:10:52,307 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 439 transitions. Word has length 110 [2020-10-13 11:10:52,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:52,307 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 439 transitions. [2020-10-13 11:10:52,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:52,307 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 439 transitions. [2020-10-13 11:10:52,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-13 11:10:52,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:52,309 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:52,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 11:10:52,309 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:52,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:52,309 INFO L82 PathProgramCache]: Analyzing trace with hash -377344755, now seen corresponding path program 1 times [2020-10-13 11:10:52,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:52,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910459638] [2020-10-13 11:10:52,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:52,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:52,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:52,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:54,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:54,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 11:10:54,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:54,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1911 [2020-10-13 11:10:54,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 11:10:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 11:10:54,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:54,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:54,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:54,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:54,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:54,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:54,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:10:54,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:54,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:54,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:54,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:54,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:54,332 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:10:54,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910459638] [2020-10-13 11:10:54,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:54,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:54,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40727897] [2020-10-13 11:10:54,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:54,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:54,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:54,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:54,345 INFO L87 Difference]: Start difference. First operand 278 states and 439 transitions. Second operand 5 states. [2020-10-13 11:10:55,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:55,226 INFO L93 Difference]: Finished difference Result 632 states and 996 transitions. [2020-10-13 11:10:55,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:55,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-13 11:10:55,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:55,229 INFO L225 Difference]: With dead ends: 632 [2020-10-13 11:10:55,229 INFO L226 Difference]: Without dead ends: 370 [2020-10-13 11:10:55,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:55,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-13 11:10:55,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 305. [2020-10-13 11:10:55,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-10-13 11:10:55,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 484 transitions. [2020-10-13 11:10:55,242 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 484 transitions. Word has length 111 [2020-10-13 11:10:55,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:55,243 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 484 transitions. [2020-10-13 11:10:55,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:55,243 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 484 transitions. [2020-10-13 11:10:55,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-13 11:10:55,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:55,244 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:55,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 11:10:55,245 INFO L427 AbstractCegarLoop]: === Iteration 22 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:55,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:55,245 INFO L82 PathProgramCache]: Analyzing trace with hash -315305141, now seen corresponding path program 1 times [2020-10-13 11:10:55,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:55,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [513955180] [2020-10-13 11:10:55,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:55,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:55,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:55,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:57,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:57,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 11:10:57,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:10:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1845 [2020-10-13 11:10:57,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:10:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 11:10:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 11:10:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:57,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:10:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:57,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:57,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:10:57,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:10:57,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:10:57,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:10:57,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:10:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:10:57,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:10:57,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:10:57,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:10:57,214 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:10:57,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [513955180] [2020-10-13 11:10:57,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:10:57,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:10:57,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119393687] [2020-10-13 11:10:57,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:10:57,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:10:57,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:10:57,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:10:57,216 INFO L87 Difference]: Start difference. First operand 305 states and 484 transitions. Second operand 5 states. [2020-10-13 11:10:58,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:10:58,139 INFO L93 Difference]: Finished difference Result 660 states and 1042 transitions. [2020-10-13 11:10:58,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:10:58,142 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-13 11:10:58,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:10:58,144 INFO L225 Difference]: With dead ends: 660 [2020-10-13 11:10:58,144 INFO L226 Difference]: Without dead ends: 371 [2020-10-13 11:10:58,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:10:58,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-10-13 11:10:58,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 279. [2020-10-13 11:10:58,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-10-13 11:10:58,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 440 transitions. [2020-10-13 11:10:58,157 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 440 transitions. Word has length 111 [2020-10-13 11:10:58,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:10:58,158 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 440 transitions. [2020-10-13 11:10:58,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:10:58,158 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 440 transitions. [2020-10-13 11:10:58,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-13 11:10:58,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:10:58,160 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:10:58,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 11:10:58,160 INFO L427 AbstractCegarLoop]: === Iteration 23 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:10:58,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:10:58,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1182737406, now seen corresponding path program 1 times [2020-10-13 11:10:58,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:10:58,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230849584] [2020-10-13 11:10:58,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:10:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:10:58,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:58,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:10:58,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:00,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:00,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 11:11:00,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:11:00,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1831 [2020-10-13 11:11:00,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:00,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:11:00,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 11:11:00,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 11:11:00,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:00,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:11:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:00,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:00,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:00,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:11:00,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:00,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:11:00,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:11:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:11:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:11:00,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:00,089 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:11:00,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230849584] [2020-10-13 11:11:00,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:11:00,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:11:00,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096519702] [2020-10-13 11:11:00,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:11:00,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:11:00,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:11:00,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:11:00,091 INFO L87 Difference]: Start difference. First operand 279 states and 440 transitions. Second operand 5 states. [2020-10-13 11:11:00,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:11:00,950 INFO L93 Difference]: Finished difference Result 628 states and 990 transitions. [2020-10-13 11:11:00,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:11:00,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-10-13 11:11:00,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:11:00,953 INFO L225 Difference]: With dead ends: 628 [2020-10-13 11:11:00,954 INFO L226 Difference]: Without dead ends: 365 [2020-10-13 11:11:00,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:11:00,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-10-13 11:11:00,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 280. [2020-10-13 11:11:00,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-13 11:11:00,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 441 transitions. [2020-10-13 11:11:00,966 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 441 transitions. Word has length 112 [2020-10-13 11:11:00,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:11:00,966 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 441 transitions. [2020-10-13 11:11:00,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:11:00,967 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 441 transitions. [2020-10-13 11:11:00,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-13 11:11:00,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:11:00,968 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:11:00,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 11:11:00,968 INFO L427 AbstractCegarLoop]: === Iteration 24 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:11:00,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:11:00,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1189001856, now seen corresponding path program 1 times [2020-10-13 11:11:00,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:11:00,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030573232] [2020-10-13 11:11:00,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:11:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:01,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:01,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:01,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:03,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:03,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 11:11:03,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:11:03,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2057 [2020-10-13 11:11:03,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:11:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 11:11:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 11:11:03,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:03,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:11:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:03,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:03,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:03,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:11:03,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:03,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:11:03,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:03,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:11:03,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:11:03,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:11:03,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:03,139 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:11:03,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030573232] [2020-10-13 11:11:03,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:11:03,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:11:03,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297840840] [2020-10-13 11:11:03,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:11:03,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:11:03,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:11:03,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:11:03,141 INFO L87 Difference]: Start difference. First operand 280 states and 441 transitions. Second operand 5 states. [2020-10-13 11:11:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:11:04,048 INFO L93 Difference]: Finished difference Result 603 states and 947 transitions. [2020-10-13 11:11:04,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:11:04,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-10-13 11:11:04,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:11:04,052 INFO L225 Difference]: With dead ends: 603 [2020-10-13 11:11:04,052 INFO L226 Difference]: Without dead ends: 339 [2020-10-13 11:11:04,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:11:04,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-10-13 11:11:04,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 253. [2020-10-13 11:11:04,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-13 11:11:04,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 396 transitions. [2020-10-13 11:11:04,065 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 396 transitions. Word has length 112 [2020-10-13 11:11:04,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:11:04,065 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 396 transitions. [2020-10-13 11:11:04,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:11:04,065 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 396 transitions. [2020-10-13 11:11:04,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 11:11:04,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:11:04,066 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:11:04,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 11:11:04,067 INFO L427 AbstractCegarLoop]: === Iteration 25 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:11:04,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:11:04,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1093741121, now seen corresponding path program 1 times [2020-10-13 11:11:04,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:11:04,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515813440] [2020-10-13 11:11:04,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:11:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:04,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:04,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:05,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:05,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 11:11:05,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:11:05,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 989 [2020-10-13 11:11:05,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:05,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:11:05,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:11:05,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 11:11:05,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:05,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:11:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:05,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:05,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:05,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:11:05,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:05,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:11:05,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:05,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:11:05,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:11:05,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:11:05,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:05,157 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 11:11:05,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515813440] [2020-10-13 11:11:05,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:11:05,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:11:05,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741819337] [2020-10-13 11:11:05,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:11:05,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:11:05,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:11:05,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:11:05,158 INFO L87 Difference]: Start difference. First operand 253 states and 396 transitions. Second operand 5 states. [2020-10-13 11:11:05,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:11:05,964 INFO L93 Difference]: Finished difference Result 549 states and 855 transitions. [2020-10-13 11:11:05,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:11:05,964 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-10-13 11:11:05,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:11:05,967 INFO L225 Difference]: With dead ends: 549 [2020-10-13 11:11:05,967 INFO L226 Difference]: Without dead ends: 312 [2020-10-13 11:11:05,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:11:05,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-10-13 11:11:05,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 266. [2020-10-13 11:11:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-13 11:11:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 417 transitions. [2020-10-13 11:11:05,981 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 417 transitions. Word has length 115 [2020-10-13 11:11:05,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:11:05,982 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 417 transitions. [2020-10-13 11:11:05,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:11:05,982 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 417 transitions. [2020-10-13 11:11:05,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 11:11:05,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:11:05,983 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:11:05,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 11:11:05,983 INFO L427 AbstractCegarLoop]: === Iteration 26 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:11:05,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:11:05,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1684762111, now seen corresponding path program 1 times [2020-10-13 11:11:05,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:11:05,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221509851] [2020-10-13 11:11:05,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:11:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:06,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:06,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:06,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:10,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:11,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:11,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 11:11:11,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:11:11,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-13 11:11:11,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:11,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:11:11,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:11:11,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 11:11:11,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:11,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:11:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:11,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:11,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:11,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:11:11,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:11,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:11:11,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:11:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:11:11,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:11:11,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:11,110 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 11:11:11,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221509851] [2020-10-13 11:11:11,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:11:11,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:11:11,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601444848] [2020-10-13 11:11:11,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:11:11,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:11:11,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:11:11,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:11:11,112 INFO L87 Difference]: Start difference. First operand 266 states and 417 transitions. Second operand 5 states. [2020-10-13 11:11:11,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:11:11,874 INFO L93 Difference]: Finished difference Result 562 states and 875 transitions. [2020-10-13 11:11:11,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:11:11,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-10-13 11:11:11,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:11:11,876 INFO L225 Difference]: With dead ends: 562 [2020-10-13 11:11:11,876 INFO L226 Difference]: Without dead ends: 312 [2020-10-13 11:11:11,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:11:11,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-10-13 11:11:11,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-10-13 11:11:11,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-10-13 11:11:11,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 420 transitions. [2020-10-13 11:11:11,889 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 420 transitions. Word has length 115 [2020-10-13 11:11:11,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:11:11,890 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 420 transitions. [2020-10-13 11:11:11,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:11:11,890 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 420 transitions. [2020-10-13 11:11:11,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 11:11:11,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:11:11,891 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:11:11,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 11:11:11,892 INFO L427 AbstractCegarLoop]: === Iteration 27 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:11:11,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:11:11,892 INFO L82 PathProgramCache]: Analyzing trace with hash 17446802, now seen corresponding path program 1 times [2020-10-13 11:11:11,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:11:11,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265845562] [2020-10-13 11:11:11,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:11:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:11,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:11,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:13,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:13,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 11:11:13,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:11:13,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1261 [2020-10-13 11:11:13,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:11:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:11:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 11:11:13,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:13,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:11:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:13,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:13,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:13,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:11:13,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:13,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:11:13,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:13,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:11:13,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:11:13,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:11:13,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:13,257 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 11:11:13,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265845562] [2020-10-13 11:11:13,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:11:13,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:11:13,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792427290] [2020-10-13 11:11:13,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:11:13,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:11:13,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:11:13,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:11:13,258 INFO L87 Difference]: Start difference. First operand 268 states and 420 transitions. Second operand 5 states. [2020-10-13 11:11:14,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:11:14,004 INFO L93 Difference]: Finished difference Result 562 states and 875 transitions. [2020-10-13 11:11:14,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:11:14,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-10-13 11:11:14,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:11:14,007 INFO L225 Difference]: With dead ends: 562 [2020-10-13 11:11:14,007 INFO L226 Difference]: Without dead ends: 310 [2020-10-13 11:11:14,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:11:14,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-10-13 11:11:14,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 268. [2020-10-13 11:11:14,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-10-13 11:11:14,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 419 transitions. [2020-10-13 11:11:14,019 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 419 transitions. Word has length 116 [2020-10-13 11:11:14,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:11:14,020 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 419 transitions. [2020-10-13 11:11:14,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:11:14,020 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 419 transitions. [2020-10-13 11:11:14,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 11:11:14,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:11:14,021 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:11:14,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 11:11:14,021 INFO L427 AbstractCegarLoop]: === Iteration 28 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:11:14,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:11:14,022 INFO L82 PathProgramCache]: Analyzing trace with hash -152112144, now seen corresponding path program 1 times [2020-10-13 11:11:14,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:11:14,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354713064] [2020-10-13 11:11:14,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:11:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:14,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:14,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:14,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:18,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:19,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:19,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 11:11:19,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:11:19,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-13 11:11:19,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:19,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:11:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:11:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 11:11:19,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:19,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:11:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:19,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:19,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:19,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:11:19,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:19,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:11:19,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:19,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:11:19,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:11:19,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:11:19,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:19,152 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 11:11:19,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354713064] [2020-10-13 11:11:19,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:11:19,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:11:19,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205844001] [2020-10-13 11:11:19,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:11:19,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:11:19,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:11:19,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:11:19,154 INFO L87 Difference]: Start difference. First operand 268 states and 419 transitions. Second operand 5 states. [2020-10-13 11:11:19,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:11:19,896 INFO L93 Difference]: Finished difference Result 560 states and 871 transitions. [2020-10-13 11:11:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:11:19,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-10-13 11:11:19,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:11:19,899 INFO L225 Difference]: With dead ends: 560 [2020-10-13 11:11:19,899 INFO L226 Difference]: Without dead ends: 308 [2020-10-13 11:11:19,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:11:19,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-10-13 11:11:19,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 269. [2020-10-13 11:11:19,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-10-13 11:11:19,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 420 transitions. [2020-10-13 11:11:19,912 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 420 transitions. Word has length 116 [2020-10-13 11:11:19,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:11:19,912 INFO L479 AbstractCegarLoop]: Abstraction has 269 states and 420 transitions. [2020-10-13 11:11:19,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:11:19,912 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 420 transitions. [2020-10-13 11:11:19,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-13 11:11:19,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:11:19,913 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:11:19,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 11:11:19,914 INFO L427 AbstractCegarLoop]: === Iteration 29 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:11:19,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:11:19,914 INFO L82 PathProgramCache]: Analyzing trace with hash 587084836, now seen corresponding path program 1 times [2020-10-13 11:11:19,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:11:19,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927618669] [2020-10-13 11:11:19,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:11:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:19,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:19,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:20,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:21,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:21,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 11:11:21,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:11:21,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1781 [2020-10-13 11:11:21,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:21,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:11:21,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-13 11:11:21,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 11:11:21,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:21,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:11:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:21,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:21,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:21,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:11:21,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:21,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:11:21,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:11:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:11:21,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:11:21,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:21,800 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:11:21,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927618669] [2020-10-13 11:11:21,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:11:21,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:11:21,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156273095] [2020-10-13 11:11:21,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:11:21,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:11:21,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:11:21,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:11:21,802 INFO L87 Difference]: Start difference. First operand 269 states and 420 transitions. Second operand 5 states. [2020-10-13 11:11:22,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:11:22,703 INFO L93 Difference]: Finished difference Result 616 states and 963 transitions. [2020-10-13 11:11:22,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:11:22,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2020-10-13 11:11:22,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:11:22,707 INFO L225 Difference]: With dead ends: 616 [2020-10-13 11:11:22,707 INFO L226 Difference]: Without dead ends: 363 [2020-10-13 11:11:22,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:11:22,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-10-13 11:11:22,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 293. [2020-10-13 11:11:22,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-13 11:11:22,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 462 transitions. [2020-10-13 11:11:22,720 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 462 transitions. Word has length 117 [2020-10-13 11:11:22,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:11:22,720 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 462 transitions. [2020-10-13 11:11:22,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:11:22,720 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 462 transitions. [2020-10-13 11:11:22,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-13 11:11:22,721 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:11:22,722 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 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] [2020-10-13 11:11:22,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 11:11:22,722 INFO L427 AbstractCegarLoop]: === Iteration 30 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:11:22,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:11:22,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1843897808, now seen corresponding path program 1 times [2020-10-13 11:11:22,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:11:22,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894740297] [2020-10-13 11:11:22,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:11:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:22,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:22,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:22,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:22,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 11:11:22,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:11:22,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-13 11:11:22,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 11:11:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-13 11:11:22,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 11:11:22,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:23,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:11:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:23,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:23,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:23,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:11:23,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:23,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:11:23,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:23,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:11:23,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:11:23,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:11:23,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:23,025 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-13 11:11:23,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894740297] [2020-10-13 11:11:23,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:11:23,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 11:11:23,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876469875] [2020-10-13 11:11:23,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 11:11:23,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:11:23,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 11:11:23,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 11:11:23,026 INFO L87 Difference]: Start difference. First operand 293 states and 462 transitions. Second operand 4 states. [2020-10-13 11:11:23,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:11:23,406 INFO L93 Difference]: Finished difference Result 295 states and 463 transitions. [2020-10-13 11:11:23,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 11:11:23,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2020-10-13 11:11:23,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:11:23,409 INFO L225 Difference]: With dead ends: 295 [2020-10-13 11:11:23,409 INFO L226 Difference]: Without dead ends: 293 [2020-10-13 11:11:23,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 11:11:23,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-13 11:11:23,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2020-10-13 11:11:23,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-13 11:11:23,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 461 transitions. [2020-10-13 11:11:23,422 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 461 transitions. Word has length 117 [2020-10-13 11:11:23,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:11:23,422 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 461 transitions. [2020-10-13 11:11:23,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 11:11:23,423 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 461 transitions. [2020-10-13 11:11:23,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-13 11:11:23,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:11:23,424 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:11:23,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 11:11:23,424 INFO L427 AbstractCegarLoop]: === Iteration 31 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:11:23,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:11:23,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1406600735, now seen corresponding path program 1 times [2020-10-13 11:11:23,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:11:23,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124192729] [2020-10-13 11:11:23,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:11:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:23,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:23,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:24,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:25,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:25,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 11:11:25,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:11:25,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1829 [2020-10-13 11:11:25,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:25,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:11:25,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-13 11:11:25,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 11:11:25,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:25,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:11:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:25,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:25,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:25,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:11:25,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:25,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:11:25,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:11:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:11:25,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:11:25,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:11:25,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124192729] [2020-10-13 11:11:25,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:11:25,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:11:25,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996857592] [2020-10-13 11:11:25,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:11:25,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:11:25,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:11:25,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:11:25,359 INFO L87 Difference]: Start difference. First operand 293 states and 461 transitions. Second operand 5 states. [2020-10-13 11:11:26,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:11:26,281 INFO L93 Difference]: Finished difference Result 640 states and 1001 transitions. [2020-10-13 11:11:26,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:11:26,281 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-10-13 11:11:26,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:11:26,283 INFO L225 Difference]: With dead ends: 640 [2020-10-13 11:11:26,283 INFO L226 Difference]: Without dead ends: 363 [2020-10-13 11:11:26,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:11:26,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-10-13 11:11:26,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 295. [2020-10-13 11:11:26,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-10-13 11:11:26,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 464 transitions. [2020-10-13 11:11:26,297 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 464 transitions. Word has length 119 [2020-10-13 11:11:26,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:11:26,298 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 464 transitions. [2020-10-13 11:11:26,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:11:26,298 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 464 transitions. [2020-10-13 11:11:26,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-13 11:11:26,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:11:26,299 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 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] [2020-10-13 11:11:26,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 11:11:26,300 INFO L427 AbstractCegarLoop]: === Iteration 32 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:11:26,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:11:26,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1976910645, now seen corresponding path program 1 times [2020-10-13 11:11:26,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:11:26,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526153732] [2020-10-13 11:11:26,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:11:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:26,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:26,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:26,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:26,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:26,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 11:11:26,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:11:26,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 672 [2020-10-13 11:11:26,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:26,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:11:26,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-13 11:11:26,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 11:11:26,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:27,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:11:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:27,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:27,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:27,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:11:27,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:27,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:11:27,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:27,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:11:27,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:11:27,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:11:27,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:27,066 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-13 11:11:27,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526153732] [2020-10-13 11:11:27,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:11:27,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:11:27,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022290678] [2020-10-13 11:11:27,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:11:27,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:11:27,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:11:27,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:11:27,067 INFO L87 Difference]: Start difference. First operand 295 states and 464 transitions. Second operand 5 states. [2020-10-13 11:11:27,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:11:27,721 INFO L93 Difference]: Finished difference Result 626 states and 987 transitions. [2020-10-13 11:11:27,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:11:27,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-10-13 11:11:27,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:11:27,725 INFO L225 Difference]: With dead ends: 626 [2020-10-13 11:11:27,725 INFO L226 Difference]: Without dead ends: 347 [2020-10-13 11:11:27,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:11:27,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-10-13 11:11:27,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 319. [2020-10-13 11:11:27,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 11:11:27,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 506 transitions. [2020-10-13 11:11:27,737 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 506 transitions. Word has length 119 [2020-10-13 11:11:27,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:11:27,738 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 506 transitions. [2020-10-13 11:11:27,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:11:27,738 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 506 transitions. [2020-10-13 11:11:27,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 11:11:27,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:11:27,739 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:11:27,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-13 11:11:27,740 INFO L427 AbstractCegarLoop]: === Iteration 33 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:11:27,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:11:27,740 INFO L82 PathProgramCache]: Analyzing trace with hash 650472748, now seen corresponding path program 1 times [2020-10-13 11:11:27,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:11:27,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366190343] [2020-10-13 11:11:27,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:11:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:27,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:27,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:28,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:29,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:29,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 11:11:29,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:11:29,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1787 [2020-10-13 11:11:29,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:29,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:11:29,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-13 11:11:29,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 11:11:29,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:29,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:11:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:29,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:29,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:29,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:11:29,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:29,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:11:29,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:11:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:11:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:11:29,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:29,632 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-13 11:11:29,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366190343] [2020-10-13 11:11:29,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:11:29,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:11:29,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458322571] [2020-10-13 11:11:29,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:11:29,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:11:29,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:11:29,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:11:29,634 INFO L87 Difference]: Start difference. First operand 319 states and 506 transitions. Second operand 5 states. [2020-10-13 11:11:30,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:11:30,507 INFO L93 Difference]: Finished difference Result 684 states and 1080 transitions. [2020-10-13 11:11:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:11:30,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-10-13 11:11:30,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:11:30,509 INFO L225 Difference]: With dead ends: 684 [2020-10-13 11:11:30,509 INFO L226 Difference]: Without dead ends: 381 [2020-10-13 11:11:30,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:11:30,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-13 11:11:30,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 318. [2020-10-13 11:11:30,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-13 11:11:30,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 505 transitions. [2020-10-13 11:11:30,523 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 505 transitions. Word has length 120 [2020-10-13 11:11:30,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:11:30,524 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 505 transitions. [2020-10-13 11:11:30,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:11:30,524 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 505 transitions. [2020-10-13 11:11:30,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 11:11:30,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:11:30,526 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 11:11:30,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-13 11:11:30,526 INFO L427 AbstractCegarLoop]: === Iteration 34 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:11:30,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:11:30,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1327009055, now seen corresponding path program 1 times [2020-10-13 11:11:30,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:11:30,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056231490] [2020-10-13 11:11:30,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:11:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:30,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:30,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:30,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:33,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:33,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 11:11:33,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:11:33,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2753 [2020-10-13 11:11:33,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:33,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:11:33,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:11:33,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 11:11:33,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:33,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:11:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:33,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:33,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:33,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:11:33,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:33,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:11:33,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:33,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:11:33,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:11:33,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:11:33,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 11:11:33,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056231490] [2020-10-13 11:11:33,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:11:33,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 11:11:33,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631035840] [2020-10-13 11:11:33,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 11:11:33,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:11:33,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 11:11:33,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 11:11:33,394 INFO L87 Difference]: Start difference. First operand 318 states and 505 transitions. Second operand 5 states. [2020-10-13 11:11:34,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:11:34,189 INFO L93 Difference]: Finished difference Result 653 states and 1033 transitions. [2020-10-13 11:11:34,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 11:11:34,190 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-10-13 11:11:34,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:11:34,192 INFO L225 Difference]: With dead ends: 653 [2020-10-13 11:11:34,192 INFO L226 Difference]: Without dead ends: 351 [2020-10-13 11:11:34,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 11:11:34,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-13 11:11:34,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 319. [2020-10-13 11:11:34,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 11:11:34,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 506 transitions. [2020-10-13 11:11:34,205 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 506 transitions. Word has length 120 [2020-10-13 11:11:34,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:11:34,205 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 506 transitions. [2020-10-13 11:11:34,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 11:11:34,206 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 506 transitions. [2020-10-13 11:11:34,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-13 11:11:34,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:11:34,207 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2020-10-13 11:11:34,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-13 11:11:34,210 INFO L427 AbstractCegarLoop]: === Iteration 35 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:11:34,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:11:34,210 INFO L82 PathProgramCache]: Analyzing trace with hash 120169287, now seen corresponding path program 1 times [2020-10-13 11:11:34,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:11:34,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693967257] [2020-10-13 11:11:34,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:11:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:34,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:34,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:34,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-13 11:11:34,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:34,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-13 11:11:34,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:34,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 11:11:34,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-13 11:11:34,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 11:11:34,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:34,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:11:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:11:34,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:11:34,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:11:34,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:11:34,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:11:34,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:11:34,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:11:34,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:11:34,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:11:34,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:11:34,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:11:34,486 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-13 11:11:34,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1693967257] [2020-10-13 11:11:34,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:11:34,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 11:11:34,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729609593] [2020-10-13 11:11:34,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 11:11:34,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:11:34,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 11:11:34,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 11:11:34,487 INFO L87 Difference]: Start difference. First operand 319 states and 506 transitions. Second operand 4 states. [2020-10-13 11:11:34,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:11:34,887 INFO L93 Difference]: Finished difference Result 923 states and 1477 transitions. [2020-10-13 11:11:34,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 11:11:34,888 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2020-10-13 11:11:34,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:11:34,890 INFO L225 Difference]: With dead ends: 923 [2020-10-13 11:11:34,890 INFO L226 Difference]: Without dead ends: 620 [2020-10-13 11:11:34,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 11:11:34,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-10-13 11:11:34,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 620. [2020-10-13 11:11:34,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2020-10-13 11:11:34,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 989 transitions. [2020-10-13 11:11:34,912 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 989 transitions. Word has length 141 [2020-10-13 11:11:34,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:11:34,912 INFO L479 AbstractCegarLoop]: Abstraction has 620 states and 989 transitions. [2020-10-13 11:11:34,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 11:11:34,913 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 989 transitions. [2020-10-13 11:11:34,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-13 11:11:34,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:11:34,915 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2020-10-13 11:11:34,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-13 11:11:34,915 INFO L427 AbstractCegarLoop]: === Iteration 36 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:11:34,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:11:34,915 INFO L82 PathProgramCache]: Analyzing trace with hash 687102961, now seen corresponding path program 1 times [2020-10-13 11:11:34,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:11:34,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4992236] [2020-10-13 11:11:34,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:11:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 11:11:34,980 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 11:11:34,980 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 11:11:34,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-13 11:11:35,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:11:35 BoogieIcfgContainer [2020-10-13 11:11:35,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 11:11:35,024 INFO L168 Benchmark]: Toolchain (without parser) took 98376.51 ms. Allocated memory was 144.2 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 98.4 MB in the beginning and 378.3 MB in the end (delta: -279.9 MB). Peak memory consumption was 977.3 MB. Max. memory is 7.1 GB. [2020-10-13 11:11:35,025 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 11:11:35,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 839.32 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 98.0 MB in the beginning and 162.3 MB in the end (delta: -64.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-10-13 11:11:35,026 INFO L168 Benchmark]: Boogie Preprocessor took 195.08 ms. Allocated memory is still 201.9 MB. Free memory was 162.3 MB in the beginning and 155.0 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 7.1 GB. [2020-10-13 11:11:35,026 INFO L168 Benchmark]: RCFGBuilder took 1326.46 ms. Allocated memory was 201.9 MB in the beginning and 231.2 MB in the end (delta: 29.4 MB). Free memory was 155.0 MB in the beginning and 180.4 MB in the end (delta: -25.4 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2020-10-13 11:11:35,027 INFO L168 Benchmark]: TraceAbstraction took 96011.08 ms. Allocated memory was 231.2 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 180.4 MB in the beginning and 378.3 MB in the end (delta: -197.9 MB). Peak memory consumption was 972.3 MB. Max. memory is 7.1 GB. [2020-10-13 11:11:35,029 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 839.32 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 98.0 MB in the beginning and 162.3 MB in the end (delta: -64.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 195.08 ms. Allocated memory is still 201.9 MB. Free memory was 162.3 MB in the beginning and 155.0 MB in the end (delta: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1326.46 ms. Allocated memory was 201.9 MB in the beginning and 231.2 MB in the end (delta: 29.4 MB). Free memory was 155.0 MB in the beginning and 180.4 MB in the end (delta: -25.4 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 96011.08 ms. Allocated memory was 231.2 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 180.4 MB in the beginning and 378.3 MB in the end (delta: -197.9 MB). Peak memory consumption was 972.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1645]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 1330. Possible FailurePath: [L1039] static int init = 1; [L1040] static SSL_METHOD SSLv3_client_data ; [L1062] SSL *s ; [L1066] s = malloc (sizeof (SSL)) [L1067] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1068] s->ctx = malloc(sizeof(SSL_CTX)) [L1069] s->state = 12292 [L1070] s->version = __VERIFIER_nondet_int() [L1071] CALL ssl3_connect(s) [L1077] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1078] unsigned long tmp ; [L1079] unsigned long l ; [L1080] long num1 ; [L1081] void (*cb)() ; [L1082] int ret ; [L1083] int new_state ; [L1084] int state ; [L1085] int skip ; [L1086] int *tmp___0 ; [L1087] int tmp___1 = __VERIFIER_nondet_int(); [L1088] int tmp___2 = __VERIFIER_nondet_int(); [L1089] int tmp___3 ; [L1090] int tmp___4 ; [L1091] int tmp___5 ; [L1092] int tmp___6 ; [L1093] int tmp___7 ; [L1094] int tmp___8 ; [L1095] long tmp___9 ; [L1097] int blastFlag ; [L1100] blastFlag = 0 [L1101] s->state = 12292 [L1102] s->hit = __VERIFIER_nondet_int() [L1104] tmp = __VERIFIER_nondet_int() [L1105] cb = (void (*)())((void *)0) [L1106] ret = -1 [L1107] skip = 0 [L1108] tmp___0 = (int*)malloc(sizeof(int)) [L1109] *tmp___0 = 0 [L1110] EXPR s->info_callback [L1110] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1111] EXPR s->info_callback [L1111] cb = s->info_callback [L1119] EXPR s->in_handshake [L1119] s->in_handshake += 1 [L1120] COND FALSE !(tmp___1 & 12288) [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND TRUE s->state == 12292 [L1236] s->new_session = 1 [L1237] s->state = 4096 [L1238] EXPR s->ctx [L1238] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1238] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1243] s->server = 0 [L1244] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) [L1249] EXPR s->version [L1249] COND FALSE !((s->version & 65280) != 768) [L1255] s->type = 4096 [L1256] EXPR s->init_buf [L1256] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1268] tmp___4 = __VERIFIER_nondet_int() [L1269] COND FALSE !(! tmp___4) [L1275] tmp___5 = __VERIFIER_nondet_int() [L1276] COND FALSE !(! tmp___5) [L1282] s->state = 4368 [L1283] EXPR s->ctx [L1283] EXPR (s->ctx)->stats.sess_connect [L1283] (s->ctx)->stats.sess_connect += 1 [L1284] s->init_num = 0 [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state [L1148] COND TRUE s->state == 4368 [L1288] s->shutdown = 0 [L1289] ret = __VERIFIER_nondet_int() [L1290] COND TRUE blastFlag == 0 [L1291] blastFlag = 1 [L1295] COND FALSE !(ret <= 0) [L1300] s->state = 4384 [L1301] s->init_num = 0 [L1302] EXPR s->bbio [L1302] EXPR s->wbio [L1302] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state [L1154] COND TRUE s->state == 4384 [L1310] ret = __VERIFIER_nondet_int() [L1311] COND TRUE blastFlag == 1 [L1312] blastFlag = 2 [L1316] COND FALSE !(ret <= 0) [L1321] s->hit [L1321] COND FALSE !(s->hit) [L1324] s->state = 4400 [L1326] s->init_num = 0 [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state [L1160] COND TRUE s->state == 4400 [L1330] EXPR s->s3 [L1330] EXPR (s->s3)->tmp.new_cipher [L1330] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1330] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1333] ret = __VERIFIER_nondet_int() [L1334] COND TRUE blastFlag == 2 [L1335] blastFlag = 3 [L1339] COND FALSE !(ret <= 0) [L1345] s->state = 4416 [L1346] s->init_num = 0 [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 4400) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 4401) [L1166] EXPR s->state [L1166] COND TRUE s->state == 4416 [L1350] ret = __VERIFIER_nondet_int() [L1351] COND TRUE blastFlag == 3 [L1352] blastFlag = 4 [L1356] COND FALSE !(ret <= 0) [L1361] s->state = 4432 [L1362] s->init_num = 0 [L1363] tmp___6 = __VERIFIER_nondet_int() [L1364] COND FALSE !(! tmp___6) [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 4400) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 4401) [L1166] EXPR s->state [L1166] COND FALSE !(s->state == 4416) [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 4417) [L1172] EXPR s->state [L1172] COND TRUE s->state == 4432 [L1373] ret = __VERIFIER_nondet_int() [L1374] COND FALSE !(blastFlag == 5) [L1379] COND FALSE !(ret <= 0) [L1384] s->state = 4448 [L1385] s->init_num = 0 [L1604] EXPR s->s3 [L1604] EXPR (s->s3)->tmp.reuse_message [L1604] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1633] skip = 0 [L1130] COND TRUE 1 [L1132] EXPR s->state [L1132] state = s->state [L1133] EXPR s->state [L1133] COND FALSE !(s->state == 12292) [L1136] EXPR s->state [L1136] COND FALSE !(s->state == 16384) [L1139] EXPR s->state [L1139] COND FALSE !(s->state == 4096) [L1142] EXPR s->state [L1142] COND FALSE !(s->state == 20480) [L1145] EXPR s->state [L1145] COND FALSE !(s->state == 4099) [L1148] EXPR s->state [L1148] COND FALSE !(s->state == 4368) [L1151] EXPR s->state [L1151] COND FALSE !(s->state == 4369) [L1154] EXPR s->state [L1154] COND FALSE !(s->state == 4384) [L1157] EXPR s->state [L1157] COND FALSE !(s->state == 4385) [L1160] EXPR s->state [L1160] COND FALSE !(s->state == 4400) [L1163] EXPR s->state [L1163] COND FALSE !(s->state == 4401) [L1166] EXPR s->state [L1166] COND FALSE !(s->state == 4416) [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 4417) [L1172] EXPR s->state [L1172] COND FALSE !(s->state == 4432) [L1175] EXPR s->state [L1175] COND FALSE !(s->state == 4433) [L1178] EXPR s->state [L1178] COND TRUE s->state == 4448 [L1389] ret = __VERIFIER_nondet_int() [L1390] COND TRUE blastFlag == 4 [L1645] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 168 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 95.9s, OverallIterations: 36, TraceHistogramMax: 7, AutomataDifference: 29.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7144 SDtfs, 2997 SDslu, 10393 SDs, 0 SdLazy, 16271 SolverSat, 355 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 272 GetRequests, 105 SyntacticMatches, 25 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=620occurred in iteration=35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 35 MinimizatonAttempts, 1857 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 64.2s InterpolantComputationTime, 3682 NumberOfCodeBlocks, 3682 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 3504 ConstructedInterpolants, 0 QuantifiedInterpolants, 1483592 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 35 InterpolantComputations, 35 PerfectInterpolantSequences, 2927/2927 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...