/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:21:39,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:21:39,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:21:39,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:21:39,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:21:39,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:21:39,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:21:39,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:21:39,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:21:39,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:21:39,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:21:39,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:21:39,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:21:39,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:21:39,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:21:39,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:21:39,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:21:39,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:21:39,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:21:39,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:21:39,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:21:39,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:21:39,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:21:39,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:21:39,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:21:39,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:21:39,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:21:39,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:21:39,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:21:39,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:21:39,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:21:39,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:21:39,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:21:39,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:21:39,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:21:39,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:21:39,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:21:39,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:21:39,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:21:39,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:21:39,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:21:39,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:21:39,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:21:39,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:21:39,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:21:39,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:21:39,774 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:21:39,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:21:39,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:21:39,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:21:39,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:21:39,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:21:39,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:21:39,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:21:39,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:21:39,778 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:21:39,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:21:39,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:21:39,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:21:39,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:21:39,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:21:39,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:21:39,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:21:39,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:21:39,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:21:39,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:21:39,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:21:39,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:21:39,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:21:39,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:21:39,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:21:39,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:21:40,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:21:40,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:21:40,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:21:40,251 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:21:40,251 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:21:40,252 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-25 04:21:40,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1447f11c9/b30b825ef98a416cb1c7767f3af53861/FLAG67f85975a [2020-09-25 04:21:40,939 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:21:40,940 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-25 04:21:40,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1447f11c9/b30b825ef98a416cb1c7767f3af53861/FLAG67f85975a [2020-09-25 04:21:41,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1447f11c9/b30b825ef98a416cb1c7767f3af53861 [2020-09-25 04:21:41,258 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:21:41,262 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:21:41,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:41,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:21:41,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:21:41,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:41" (1/1) ... [2020-09-25 04:21:41,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d90d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:41, skipping insertion in model container [2020-09-25 04:21:41,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:41" (1/1) ... [2020-09-25 04:21:41,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:21:41,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:21:41,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:41,671 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:21:41,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:41,840 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:21:41,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:41 WrapperNode [2020-09-25 04:21:41,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:41,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:21:41,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:21:41,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:21:41,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:41" (1/1) ... [2020-09-25 04:21:41,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:41" (1/1) ... [2020-09-25 04:21:41,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:41" (1/1) ... [2020-09-25 04:21:41,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:41" (1/1) ... [2020-09-25 04:21:41,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:41" (1/1) ... [2020-09-25 04:21:41,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:41" (1/1) ... [2020-09-25 04:21:41,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:41" (1/1) ... [2020-09-25 04:21:41,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:21:41,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:21:41,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:21:41,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:21:41,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:21:41,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:21:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:21:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 04:21:41,996 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:21:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:21:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 04:21:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:21:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 04:21:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 04:21:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:21:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:21:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:21:42,198 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:21:42,845 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 04:21:42,845 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 04:21:42,873 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:21:42,873 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:21:42,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:21:42 BoogieIcfgContainer [2020-09-25 04:21:42,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:21:42,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:21:42,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:21:42,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:21:42,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:21:41" (1/3) ... [2020-09-25 04:21:42,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc43b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:21:42, skipping insertion in model container [2020-09-25 04:21:42,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:41" (2/3) ... [2020-09-25 04:21:42,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc43b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:21:42, skipping insertion in model container [2020-09-25 04:21:42,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:21:42" (3/3) ... [2020-09-25 04:21:42,893 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-1.c [2020-09-25 04:21:42,905 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:21:42,917 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:21:42,940 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:21:42,976 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:21:42,977 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:21:42,977 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:21:42,977 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:21:42,977 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:21:42,978 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:21:42,978 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:21:42,978 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:21:43,012 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states. [2020-09-25 04:21:43,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 04:21:43,032 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:43,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:43,034 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:43,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:43,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1688119681, now seen corresponding path program 1 times [2020-09-25 04:21:43,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:43,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072045029] [2020-09-25 04:21:43,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:43,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:43,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:44,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:44,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:44,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-25 04:21:44,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:21:44,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1290 [2020-09-25 04:21:44,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:44,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:44,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:44,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 04:21:44,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 04:21:44,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 04:21:44,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:44,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:44,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:44,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:44,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:44,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:21:44,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:44,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:44,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:44,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:44,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:21:44,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072045029] [2020-09-25 04:21:44,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:44,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:21:44,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133521720] [2020-09-25 04:21:44,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:21:44,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:44,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:21:44,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:44,854 INFO L87 Difference]: Start difference. First operand 385 states. Second operand 3 states. [2020-09-25 04:21:45,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:45,001 INFO L93 Difference]: Finished difference Result 853 states and 1110 transitions. [2020-09-25 04:21:45,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:21:45,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-09-25 04:21:45,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:45,033 INFO L225 Difference]: With dead ends: 853 [2020-09-25 04:21:45,033 INFO L226 Difference]: Without dead ends: 536 [2020-09-25 04:21:45,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:45,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-09-25 04:21:45,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2020-09-25 04:21:45,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-09-25 04:21:45,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 642 transitions. [2020-09-25 04:21:45,150 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 642 transitions. Word has length 161 [2020-09-25 04:21:45,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:45,151 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 642 transitions. [2020-09-25 04:21:45,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:21:45,152 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 642 transitions. [2020-09-25 04:21:45,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 04:21:45,157 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:45,158 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:45,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:21:45,158 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:45,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:45,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1280710455, now seen corresponding path program 1 times [2020-09-25 04:21:45,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:45,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021151633] [2020-09-25 04:21:45,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:45,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:45,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:45,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:45,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:45,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:46,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:46,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-25 04:21:46,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:21:46,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1584 [2020-09-25 04:21:46,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:46,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:46,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:46,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 04:21:46,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 04:21:46,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:21:46,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:46,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:46,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:46,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:46,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:46,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:21:46,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:46,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:46,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:46,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:46,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:46,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:46,885 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:21:46,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1021151633] [2020-09-25 04:21:46,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:46,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:21:46,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26410919] [2020-09-25 04:21:46,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:21:46,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:46,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:21:46,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:46,901 INFO L87 Difference]: Start difference. First operand 536 states and 642 transitions. Second operand 3 states. [2020-09-25 04:21:47,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:47,008 INFO L93 Difference]: Finished difference Result 929 states and 1142 transitions. [2020-09-25 04:21:47,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:21:47,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-25 04:21:47,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:47,013 INFO L225 Difference]: With dead ends: 929 [2020-09-25 04:21:47,014 INFO L226 Difference]: Without dead ends: 729 [2020-09-25 04:21:47,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:47,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2020-09-25 04:21:47,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729. [2020-09-25 04:21:47,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2020-09-25 04:21:47,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 885 transitions. [2020-09-25 04:21:47,043 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 885 transitions. Word has length 181 [2020-09-25 04:21:47,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:47,044 INFO L479 AbstractCegarLoop]: Abstraction has 729 states and 885 transitions. [2020-09-25 04:21:47,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:21:47,044 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 885 transitions. [2020-09-25 04:21:47,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-25 04:21:47,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:47,048 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:47,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:21:47,048 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:47,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:47,049 INFO L82 PathProgramCache]: Analyzing trace with hash 436822488, now seen corresponding path program 1 times [2020-09-25 04:21:47,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:47,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488139863] [2020-09-25 04:21:47,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:47,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:47,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:47,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:47,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:48,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 04:21:48,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:21:48,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1283 [2020-09-25 04:21:48,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:48,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:48,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:48,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-25 04:21:48,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 04:21:48,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:48,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:48,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:48,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:48,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:48,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:48,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:48,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:48,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:48,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:48,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:48,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:48,462 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 04:21:48,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488139863] [2020-09-25 04:21:48,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:48,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:21:48,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873467900] [2020-09-25 04:21:48,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:21:48,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:48,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:21:48,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:48,465 INFO L87 Difference]: Start difference. First operand 729 states and 885 transitions. Second operand 3 states. [2020-09-25 04:21:48,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:48,533 INFO L93 Difference]: Finished difference Result 1315 states and 1628 transitions. [2020-09-25 04:21:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:21:48,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2020-09-25 04:21:48,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:48,540 INFO L225 Difference]: With dead ends: 1315 [2020-09-25 04:21:48,540 INFO L226 Difference]: Without dead ends: 922 [2020-09-25 04:21:48,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:48,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2020-09-25 04:21:48,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2020-09-25 04:21:48,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 922 states. [2020-09-25 04:21:48,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1129 transitions. [2020-09-25 04:21:48,569 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1129 transitions. Word has length 202 [2020-09-25 04:21:48,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:48,569 INFO L479 AbstractCegarLoop]: Abstraction has 922 states and 1129 transitions. [2020-09-25 04:21:48,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:21:48,570 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1129 transitions. [2020-09-25 04:21:48,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-25 04:21:48,574 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:48,574 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:48,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:21:48,575 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:48,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:48,575 INFO L82 PathProgramCache]: Analyzing trace with hash 992070410, now seen corresponding path program 1 times [2020-09-25 04:21:48,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:48,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176426914] [2020-09-25 04:21:48,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:48,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:49,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:49,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:49,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:51,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 04:21:51,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:21:51,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3231 [2020-09-25 04:21:51,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:51,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-09-25 04:21:51,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 04:21:51,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:51,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:51,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:51,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:51,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:51,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:51,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:51,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:51,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:51,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:51,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:51,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:51,926 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 04:21:51,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176426914] [2020-09-25 04:21:51,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:51,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:21:51,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295858227] [2020-09-25 04:21:51,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:21:51,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:51,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:21:51,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:51,930 INFO L87 Difference]: Start difference. First operand 922 states and 1129 transitions. Second operand 3 states. [2020-09-25 04:21:52,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:52,015 INFO L93 Difference]: Finished difference Result 1701 states and 2116 transitions. [2020-09-25 04:21:52,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:21:52,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2020-09-25 04:21:52,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:52,021 INFO L225 Difference]: With dead ends: 1701 [2020-09-25 04:21:52,022 INFO L226 Difference]: Without dead ends: 1115 [2020-09-25 04:21:52,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:52,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2020-09-25 04:21:52,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2020-09-25 04:21:52,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1115 states. [2020-09-25 04:21:52,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1374 transitions. [2020-09-25 04:21:52,054 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1374 transitions. Word has length 226 [2020-09-25 04:21:52,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:52,054 INFO L479 AbstractCegarLoop]: Abstraction has 1115 states and 1374 transitions. [2020-09-25 04:21:52,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:21:52,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1374 transitions. [2020-09-25 04:21:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-25 04:21:52,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:52,060 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:52,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:21:52,061 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:52,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:52,061 INFO L82 PathProgramCache]: Analyzing trace with hash -189283057, now seen corresponding path program 1 times [2020-09-25 04:21:52,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:52,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280891216] [2020-09-25 04:21:52,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:52,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:52,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:52,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:53,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:53,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 04:21:53,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:21:53,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1153 [2020-09-25 04:21:53,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:53,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:53,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:53,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-25 04:21:53,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:21:53,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:53,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:53,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:53,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:53,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:53,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:53,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:21:53,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:53,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:53,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:53,429 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 04:21:53,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280891216] [2020-09-25 04:21:53,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:53,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:21:53,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135945341] [2020-09-25 04:21:53,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:21:53,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:53,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:21:53,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:53,432 INFO L87 Difference]: Start difference. First operand 1115 states and 1374 transitions. Second operand 3 states. [2020-09-25 04:21:53,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:53,701 INFO L93 Difference]: Finished difference Result 2397 states and 3101 transitions. [2020-09-25 04:21:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:21:53,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 251 [2020-09-25 04:21:53,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:53,708 INFO L225 Difference]: With dead ends: 2397 [2020-09-25 04:21:53,709 INFO L226 Difference]: Without dead ends: 1420 [2020-09-25 04:21:53,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:53,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2020-09-25 04:21:53,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1335. [2020-09-25 04:21:53,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1335 states. [2020-09-25 04:21:53,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1639 transitions. [2020-09-25 04:21:53,749 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1639 transitions. Word has length 251 [2020-09-25 04:21:53,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:53,749 INFO L479 AbstractCegarLoop]: Abstraction has 1335 states and 1639 transitions. [2020-09-25 04:21:53,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:21:53,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1639 transitions. [2020-09-25 04:21:53,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-25 04:21:53,755 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:53,755 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:53,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:21:53,755 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:53,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:53,756 INFO L82 PathProgramCache]: Analyzing trace with hash -552259409, now seen corresponding path program 1 times [2020-09-25 04:21:53,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:53,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711211560] [2020-09-25 04:21:53,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:53,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:53,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:54,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 04:21:54,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:54,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 835 [2020-09-25 04:21:54,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:54,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:54,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:54,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:21:54,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-09-25 04:21:54,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:54,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:54,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:54,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:54,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:54,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:54,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:54,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:54,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:54,851 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 04:21:54,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711211560] [2020-09-25 04:21:54,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:54,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:21:54,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550298228] [2020-09-25 04:21:54,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:21:54,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:54,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:21:54,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:21:54,854 INFO L87 Difference]: Start difference. First operand 1335 states and 1639 transitions. Second operand 6 states. [2020-09-25 04:21:55,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:55,137 INFO L93 Difference]: Finished difference Result 2669 states and 3334 transitions. [2020-09-25 04:21:55,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:21:55,137 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 251 [2020-09-25 04:21:55,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:55,145 INFO L225 Difference]: With dead ends: 2669 [2020-09-25 04:21:55,145 INFO L226 Difference]: Without dead ends: 1477 [2020-09-25 04:21:55,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:21:55,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2020-09-25 04:21:55,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1425. [2020-09-25 04:21:55,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-09-25 04:21:55,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1779 transitions. [2020-09-25 04:21:55,194 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1779 transitions. Word has length 251 [2020-09-25 04:21:55,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:55,195 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 1779 transitions. [2020-09-25 04:21:55,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:21:55,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1779 transitions. [2020-09-25 04:21:55,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-09-25 04:21:55,200 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:55,201 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:55,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:21:55,201 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:55,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:55,202 INFO L82 PathProgramCache]: Analyzing trace with hash -349484375, now seen corresponding path program 1 times [2020-09-25 04:21:55,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:55,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933942291] [2020-09-25 04:21:55,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 04:21:55,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:55,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-09-25 04:21:55,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:55,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:21:55,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 04:21:55,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:55,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:55,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:55,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:55,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:55,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:55,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:55,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:55,902 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 04:21:55,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933942291] [2020-09-25 04:21:55,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:55,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:21:55,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358293978] [2020-09-25 04:21:55,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:21:55,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:55,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:21:55,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:21:55,906 INFO L87 Difference]: Start difference. First operand 1425 states and 1779 transitions. Second operand 6 states. [2020-09-25 04:21:56,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:56,154 INFO L93 Difference]: Finished difference Result 2710 states and 3415 transitions. [2020-09-25 04:21:56,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:21:56,155 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 252 [2020-09-25 04:21:56,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:56,162 INFO L225 Difference]: With dead ends: 2710 [2020-09-25 04:21:56,162 INFO L226 Difference]: Without dead ends: 1428 [2020-09-25 04:21:56,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:21:56,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-09-25 04:21:56,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2020-09-25 04:21:56,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-09-25 04:21:56,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1782 transitions. [2020-09-25 04:21:56,231 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1782 transitions. Word has length 252 [2020-09-25 04:21:56,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:56,232 INFO L479 AbstractCegarLoop]: Abstraction has 1428 states and 1782 transitions. [2020-09-25 04:21:56,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:21:56,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1782 transitions. [2020-09-25 04:21:56,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-25 04:21:56,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:56,238 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:56,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:21:56,238 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:56,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:56,239 INFO L82 PathProgramCache]: Analyzing trace with hash 127538036, now seen corresponding path program 1 times [2020-09-25 04:21:56,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:56,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179212536] [2020-09-25 04:21:56,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:21:56,320 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:21:56,320 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:21:56,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:21:56,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:21:56 BoogieIcfgContainer [2020-09-25 04:21:56,400 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:21:56,404 INFO L168 Benchmark]: Toolchain (without parser) took 15143.30 ms. Allocated memory was 140.0 MB in the beginning and 401.1 MB in the end (delta: 261.1 MB). Free memory was 102.7 MB in the beginning and 302.3 MB in the end (delta: -199.7 MB). Peak memory consumption was 61.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:21:56,405 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-25 04:21:56,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.37 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 179.6 MB in the end (delta: -77.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-09-25 04:21:56,407 INFO L168 Benchmark]: Boogie Preprocessor took 72.06 ms. Allocated memory is still 204.5 MB. Free memory was 179.6 MB in the beginning and 177.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-09-25 04:21:56,407 INFO L168 Benchmark]: RCFGBuilder took 966.08 ms. Allocated memory is still 204.5 MB. Free memory was 177.4 MB in the beginning and 113.2 MB in the end (delta: 64.3 MB). Peak memory consumption was 64.3 MB. Max. memory is 7.1 GB. [2020-09-25 04:21:56,408 INFO L168 Benchmark]: TraceAbstraction took 13516.65 ms. Allocated memory was 204.5 MB in the beginning and 401.1 MB in the end (delta: 196.6 MB). Free memory was 113.2 MB in the beginning and 302.3 MB in the end (delta: -189.1 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. [2020-09-25 04:21:56,413 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 580.37 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 179.6 MB in the end (delta: -77.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.06 ms. Allocated memory is still 204.5 MB. Free memory was 179.6 MB in the beginning and 177.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 966.08 ms. Allocated memory is still 204.5 MB. Free memory was 177.4 MB in the beginning and 113.2 MB in the end (delta: 64.3 MB). Peak memory consumption was 64.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13516.65 ms. Allocated memory was 204.5 MB in the beginning and 401.1 MB in the end (delta: 196.6 MB). Free memory was 113.2 MB in the beginning and 302.3 MB in the end (delta: -189.1 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L553] int s ; [L557] s = 12292 [L558] CALL ssl3_connect(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L73] long __cil_tmp65 ; [L77] s__state = initial_state [L78] blastFlag = 0 [L79] tmp = __VERIFIER_nondet_int() [L80] cb = 0 [L81] ret = -1 [L82] skip = 0 [L83] tmp___0 = 0 [L84] COND TRUE s__info_callback != 0 [L85] cb = s__info_callback [L91] s__in_handshake ++ [L92] COND FALSE !(tmp___1 - 12288) [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L203] s__new_session = 1 [L204] s__state = 4096 [L205] s__ctx__stats__sess_connect_renegotiate ++ [L210] s__server = 0 [L211] COND TRUE cb != 0 [L215] __cil_tmp55 = s__version - 65280 [L216] COND FALSE !(__cil_tmp55 != 768) [L221] s__type = 4096 [L222] COND FALSE !(s__init_buf___0 == 0) [L234] COND FALSE !(! tmp___4) [L238] COND FALSE !(! tmp___5) [L242] s__state = 4368 [L243] s__ctx__stats__sess_connect ++ [L244] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L248] s__shutdown = 0 [L249] ret = __VERIFIER_nondet_int() [L250] COND TRUE blastFlag == 0 [L251] blastFlag = 1 [L257] COND FALSE !(ret <= 0) [L260] s__state = 4384 [L261] s__init_num = 0 [L262] COND TRUE s__bbio != s__wbio [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L268] ret = __VERIFIER_nondet_int() [L269] COND TRUE blastFlag == 1 [L270] blastFlag = 2 [L272] COND FALSE !(ret <= 0) [L275] COND FALSE !(\read(s__hit)) [L278] s__state = 4400 [L280] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L285] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L286] COND FALSE !(__cil_tmp56 - 256UL) [L289] ret = __VERIFIER_nondet_int() [L290] COND TRUE blastFlag == 2 [L291] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 385 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.3s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2801 SDtfs, 2696 SDslu, 3020 SDs, 0 SdLazy, 469 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1428occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 137 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 1798 NumberOfCodeBlocks, 1798 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1517 ConstructedInterpolants, 0 QuantifiedInterpolants, 564435 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 438/438 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...