/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=0.6 --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 06:38:49,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:38:49,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:38:49,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:38:49,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:38:49,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:38:49,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:38:49,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:38:49,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:38:49,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:38:49,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:38:49,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:38:49,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:38:49,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:38:49,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:38:49,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:38:49,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:38:49,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:38:49,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:38:49,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:38:49,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:38:49,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:38:49,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:38:49,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:38:49,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:38:49,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:38:49,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:38:49,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:38:49,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:38:49,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:38:49,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:38:49,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:38:49,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:38:49,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:38:49,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:38:49,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:38:49,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:38:49,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:38:49,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:38:49,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:38:49,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:38:49,811 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 06:38:49,860 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:38:49,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:38:49,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:38:49,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:38:49,862 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:38:49,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:38:49,863 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:38:49,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:38:49,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:38:49,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:38:49,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:38:49,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:38:49,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:38:49,864 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:38:49,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:38:49,865 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:38:49,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:38:49,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:38:49,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:38:49,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:38:49,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:38:49,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:38:49,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:38:49,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:38:49,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:38:49,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:38:49,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:38:49,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:38:49,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:38:49,868 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:38:50,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:38:50,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:38:50,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:38:50,425 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:38:50,426 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:38:50,427 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-25 06:38:50,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfc69b090/320708c945694f7db1783f5005d3dc47/FLAGdf104551f [2020-09-25 06:38:51,133 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:38:51,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-25 06:38:51,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfc69b090/320708c945694f7db1783f5005d3dc47/FLAGdf104551f [2020-09-25 06:38:51,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfc69b090/320708c945694f7db1783f5005d3dc47 [2020-09-25 06:38:51,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:38:51,432 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:38:51,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:38:51,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:38:51,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:38:51,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:38:51" (1/1) ... [2020-09-25 06:38:51,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae2094d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:51, skipping insertion in model container [2020-09-25 06:38:51,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:38:51" (1/1) ... [2020-09-25 06:38:51,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:38:51,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:38:51,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:38:51,879 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:38:52,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:38:52,070 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:38:52,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:52 WrapperNode [2020-09-25 06:38:52,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:38:52,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:38:52,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:38:52,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:38:52,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:52" (1/1) ... [2020-09-25 06:38:52,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:52" (1/1) ... [2020-09-25 06:38:52,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:52" (1/1) ... [2020-09-25 06:38:52,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:52" (1/1) ... [2020-09-25 06:38:52,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:52" (1/1) ... [2020-09-25 06:38:52,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:52" (1/1) ... [2020-09-25 06:38:52,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:52" (1/1) ... [2020-09-25 06:38:52,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:38:52,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:38:52,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:38:52,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:38:52,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:52" (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 06:38:52,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:38:52,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:38:52,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 06:38:52,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:38:52,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:38:52,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 06:38:52,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:38:52,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 06:38:52,223 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 06:38:52,223 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:38:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:38:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:38:52,397 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 06:38:53,135 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 06:38:53,135 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 06:38:53,164 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:38:53,164 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:38:53,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:38:53 BoogieIcfgContainer [2020-09-25 06:38:53,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:38:53,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:38:53,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:38:53,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:38:53,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:38:51" (1/3) ... [2020-09-25 06:38:53,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a167fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:38:53, skipping insertion in model container [2020-09-25 06:38:53,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:52" (2/3) ... [2020-09-25 06:38:53,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a167fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:38:53, skipping insertion in model container [2020-09-25 06:38:53,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:38:53" (3/3) ... [2020-09-25 06:38:53,183 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-1.c [2020-09-25 06:38:53,195 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:38:53,208 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:38:53,232 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:38:53,268 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:38:53,268 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:38:53,268 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:38:53,268 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:38:53,268 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:38:53,269 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:38:53,269 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:38:53,269 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:38:53,299 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states. [2020-09-25 06:38:53,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 06:38:53,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:53,321 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 06:38:53,322 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:53,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:53,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1688119681, now seen corresponding path program 1 times [2020-09-25 06:38:53,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:53,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90295801] [2020-09-25 06:38:53,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:53,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:53,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:54,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:54,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:54,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-25 06:38:54,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:38:54,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1284 [2020-09-25 06:38:54,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:54,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:38:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:38:54,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 06:38:54,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:38:55,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:55,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:55,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:55,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:38:55,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:55,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:38:55,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:55,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:55,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:55,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:55,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:38:55,084 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 06:38:55,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90295801] [2020-09-25 06:38:55,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:55,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:38:55,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975150] [2020-09-25 06:38:55,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:38:55,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:55,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:38:55,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:38:55,116 INFO L87 Difference]: Start difference. First operand 385 states. Second operand 3 states. [2020-09-25 06:38:55,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:55,341 INFO L93 Difference]: Finished difference Result 853 states and 1110 transitions. [2020-09-25 06:38:55,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:38:55,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-09-25 06:38:55,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:55,368 INFO L225 Difference]: With dead ends: 853 [2020-09-25 06:38:55,368 INFO L226 Difference]: Without dead ends: 536 [2020-09-25 06:38:55,375 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 06:38:55,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-09-25 06:38:55,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2020-09-25 06:38:55,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-09-25 06:38:55,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 642 transitions. [2020-09-25 06:38:55,468 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 642 transitions. Word has length 161 [2020-09-25 06:38:55,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:55,469 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 642 transitions. [2020-09-25 06:38:55,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:38:55,469 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 642 transitions. [2020-09-25 06:38:55,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 06:38:55,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:55,475 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 06:38:55,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:38:55,476 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:55,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:55,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1280710455, now seen corresponding path program 1 times [2020-09-25 06:38:55,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:55,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202015458] [2020-09-25 06:38:55,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:55,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:55,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:55,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:55,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:56,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:57,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:57,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-25 06:38:57,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:38:57,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1639 [2020-09-25 06:38:57,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:57,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:57,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:38:57,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 06:38:57,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 06:38:57,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:38:57,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:57,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:57,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:57,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:38:57,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:57,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:38:57,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:57,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:57,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:57,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:57,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:57,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:57,242 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 06:38:57,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202015458] [2020-09-25 06:38:57,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:57,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:38:57,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644173999] [2020-09-25 06:38:57,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:38:57,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:57,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:38:57,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:38:57,247 INFO L87 Difference]: Start difference. First operand 536 states and 642 transitions. Second operand 3 states. [2020-09-25 06:38:57,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:57,346 INFO L93 Difference]: Finished difference Result 929 states and 1142 transitions. [2020-09-25 06:38:57,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:38:57,347 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-25 06:38:57,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:57,354 INFO L225 Difference]: With dead ends: 929 [2020-09-25 06:38:57,354 INFO L226 Difference]: Without dead ends: 729 [2020-09-25 06:38:57,357 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 06:38:57,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2020-09-25 06:38:57,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729. [2020-09-25 06:38:57,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2020-09-25 06:38:57,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 885 transitions. [2020-09-25 06:38:57,428 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 885 transitions. Word has length 181 [2020-09-25 06:38:57,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:57,430 INFO L479 AbstractCegarLoop]: Abstraction has 729 states and 885 transitions. [2020-09-25 06:38:57,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:38:57,431 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 885 transitions. [2020-09-25 06:38:57,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-25 06:38:57,443 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:57,444 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 06:38:57,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:38:57,444 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:57,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:57,445 INFO L82 PathProgramCache]: Analyzing trace with hash 436822488, now seen corresponding path program 1 times [2020-09-25 06:38:57,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:57,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671567088] [2020-09-25 06:38:57,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:57,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:57,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:57,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:57,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:58,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:58,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 06:38:58,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:38:58,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1164 [2020-09-25 06:38:58,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:58,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:58,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:38:58,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-25 06:38:58,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 06:38:58,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:58,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:58,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:58,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:58,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:38:58,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:58,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:38:58,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:58,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:58,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:58,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:58,792 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 06:38:58,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671567088] [2020-09-25 06:38:58,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:58,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:38:58,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750683896] [2020-09-25 06:38:58,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:38:58,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:58,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:38:58,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:38:58,800 INFO L87 Difference]: Start difference. First operand 729 states and 885 transitions. Second operand 3 states. [2020-09-25 06:38:58,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:58,899 INFO L93 Difference]: Finished difference Result 1315 states and 1628 transitions. [2020-09-25 06:38:58,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:38:58,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2020-09-25 06:38:58,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:58,909 INFO L225 Difference]: With dead ends: 1315 [2020-09-25 06:38:58,910 INFO L226 Difference]: Without dead ends: 922 [2020-09-25 06:38:58,912 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 06:38:58,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2020-09-25 06:38:58,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2020-09-25 06:38:58,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 922 states. [2020-09-25 06:38:58,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1129 transitions. [2020-09-25 06:38:58,963 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1129 transitions. Word has length 202 [2020-09-25 06:38:58,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:58,964 INFO L479 AbstractCegarLoop]: Abstraction has 922 states and 1129 transitions. [2020-09-25 06:38:58,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:38:58,965 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1129 transitions. [2020-09-25 06:38:58,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-25 06:38:58,970 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:58,970 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 06:38:58,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:38:58,971 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:58,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:58,971 INFO L82 PathProgramCache]: Analyzing trace with hash 992070410, now seen corresponding path program 1 times [2020-09-25 06:38:58,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:58,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961201986] [2020-09-25 06:38:58,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:59,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:59,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:59,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:02,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:02,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 06:39:02,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:39:02,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3400 [2020-09-25 06:39:02,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:02,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-09-25 06:39:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 06:39:02,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:02,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:02,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:02,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:02,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:02,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:02,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:02,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:02,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:02,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:02,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:02,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:02,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:02,508 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 06:39:02,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961201986] [2020-09-25 06:39:02,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:02,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:02,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823635288] [2020-09-25 06:39:02,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:02,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:02,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:02,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:02,511 INFO L87 Difference]: Start difference. First operand 922 states and 1129 transitions. Second operand 3 states. [2020-09-25 06:39:02,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:02,576 INFO L93 Difference]: Finished difference Result 1701 states and 2116 transitions. [2020-09-25 06:39:02,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:02,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2020-09-25 06:39:02,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:02,583 INFO L225 Difference]: With dead ends: 1701 [2020-09-25 06:39:02,584 INFO L226 Difference]: Without dead ends: 1115 [2020-09-25 06:39:02,586 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 06:39:02,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2020-09-25 06:39:02,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2020-09-25 06:39:02,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1115 states. [2020-09-25 06:39:02,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1374 transitions. [2020-09-25 06:39:02,614 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1374 transitions. Word has length 226 [2020-09-25 06:39:02,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:02,614 INFO L479 AbstractCegarLoop]: Abstraction has 1115 states and 1374 transitions. [2020-09-25 06:39:02,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1374 transitions. [2020-09-25 06:39:02,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-25 06:39:02,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:02,620 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 06:39:02,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:39:02,621 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:02,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:02,621 INFO L82 PathProgramCache]: Analyzing trace with hash -189283057, now seen corresponding path program 1 times [2020-09-25 06:39:02,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:02,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340312809] [2020-09-25 06:39:02,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:02,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:02,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:03,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:03,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:03,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 06:39:03,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:39:03,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1103 [2020-09-25 06:39:03,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:03,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-25 06:39:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:39:03,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:03,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:03,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:03,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:03,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:03,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:03,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:39:03,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:03,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:03,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:03,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:03,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:39:03,950 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 06:39:03,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340312809] [2020-09-25 06:39:03,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:03,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:03,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152999213] [2020-09-25 06:39:03,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:03,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:03,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:03,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:03,952 INFO L87 Difference]: Start difference. First operand 1115 states and 1374 transitions. Second operand 3 states. [2020-09-25 06:39:04,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:04,206 INFO L93 Difference]: Finished difference Result 2397 states and 3101 transitions. [2020-09-25 06:39:04,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:04,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 251 [2020-09-25 06:39:04,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:04,215 INFO L225 Difference]: With dead ends: 2397 [2020-09-25 06:39:04,215 INFO L226 Difference]: Without dead ends: 1420 [2020-09-25 06:39:04,218 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 06:39:04,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2020-09-25 06:39:04,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1335. [2020-09-25 06:39:04,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1335 states. [2020-09-25 06:39:04,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1639 transitions. [2020-09-25 06:39:04,260 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1639 transitions. Word has length 251 [2020-09-25 06:39:04,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:04,261 INFO L479 AbstractCegarLoop]: Abstraction has 1335 states and 1639 transitions. [2020-09-25 06:39:04,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:04,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1639 transitions. [2020-09-25 06:39:04,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-25 06:39:04,268 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:04,268 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 06:39:04,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:39:04,269 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:04,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:04,269 INFO L82 PathProgramCache]: Analyzing trace with hash -552259409, now seen corresponding path program 1 times [2020-09-25 06:39:04,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:04,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179039349] [2020-09-25 06:39:04,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:04,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:04,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:05,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:05,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-25 06:39:05,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:05,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 814 [2020-09-25 06:39:05,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:05,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:05,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:39:05,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:39:05,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-09-25 06:39:05,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:05,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:05,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:05,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:05,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:05,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:05,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:05,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:05,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:05,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:05,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:05,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:05,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:39:05,345 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 06:39:05,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179039349] [2020-09-25 06:39:05,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:05,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:39:05,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029487393] [2020-09-25 06:39:05,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:39:05,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:05,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:39:05,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:39:05,349 INFO L87 Difference]: Start difference. First operand 1335 states and 1639 transitions. Second operand 6 states. [2020-09-25 06:39:05,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:05,680 INFO L93 Difference]: Finished difference Result 2669 states and 3334 transitions. [2020-09-25 06:39:05,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:39:05,680 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 251 [2020-09-25 06:39:05,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:05,690 INFO L225 Difference]: With dead ends: 2669 [2020-09-25 06:39:05,690 INFO L226 Difference]: Without dead ends: 1477 [2020-09-25 06:39:05,693 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 06:39:05,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2020-09-25 06:39:05,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1425. [2020-09-25 06:39:05,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-09-25 06:39:05,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1779 transitions. [2020-09-25 06:39:05,744 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1779 transitions. Word has length 251 [2020-09-25 06:39:05,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:05,745 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 1779 transitions. [2020-09-25 06:39:05,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:39:05,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1779 transitions. [2020-09-25 06:39:05,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-09-25 06:39:05,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:05,754 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 06:39:05,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:39:05,755 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:05,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:05,756 INFO L82 PathProgramCache]: Analyzing trace with hash -349484375, now seen corresponding path program 1 times [2020-09-25 06:39:05,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:05,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819348757] [2020-09-25 06:39:05,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:05,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:05,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:06,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:06,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-25 06:39:06,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:06,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-09-25 06:39:06,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:06,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:39:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:39:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 06:39:06,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:06,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:06,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:06,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:06,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:06,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:06,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:06,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:06,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:06,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:06,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:06,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:06,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:06,435 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 06:39:06,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [819348757] [2020-09-25 06:39:06,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:06,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:39:06,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798549531] [2020-09-25 06:39:06,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:39:06,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:06,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:39:06,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:39:06,440 INFO L87 Difference]: Start difference. First operand 1425 states and 1779 transitions. Second operand 6 states. [2020-09-25 06:39:06,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:06,700 INFO L93 Difference]: Finished difference Result 2710 states and 3415 transitions. [2020-09-25 06:39:06,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:39:06,701 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 252 [2020-09-25 06:39:06,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:06,709 INFO L225 Difference]: With dead ends: 2710 [2020-09-25 06:39:06,709 INFO L226 Difference]: Without dead ends: 1428 [2020-09-25 06:39:06,715 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 06:39:06,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-09-25 06:39:06,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2020-09-25 06:39:06,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-09-25 06:39:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1782 transitions. [2020-09-25 06:39:06,778 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1782 transitions. Word has length 252 [2020-09-25 06:39:06,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:06,778 INFO L479 AbstractCegarLoop]: Abstraction has 1428 states and 1782 transitions. [2020-09-25 06:39:06,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:39:06,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1782 transitions. [2020-09-25 06:39:06,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-25 06:39:06,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:06,785 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 06:39:06,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:39:06,786 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:06,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:06,786 INFO L82 PathProgramCache]: Analyzing trace with hash 127538036, now seen corresponding path program 1 times [2020-09-25 06:39:06,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:06,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242044320] [2020-09-25 06:39:06,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:39:06,841 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:39:06,841 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:39:06,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:39:06,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:39:06 BoogieIcfgContainer [2020-09-25 06:39:06,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:39:06,914 INFO L168 Benchmark]: Toolchain (without parser) took 15482.95 ms. Allocated memory was 146.3 MB in the beginning and 400.6 MB in the end (delta: 254.3 MB). Free memory was 100.9 MB in the beginning and 307.1 MB in the end (delta: -206.2 MB). Peak memory consumption was 48.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:06,919 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:39:06,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.85 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 100.3 MB in the beginning and 177.7 MB in the end (delta: -77.5 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:06,921 INFO L168 Benchmark]: Boogie Preprocessor took 63.11 ms. Allocated memory is still 202.4 MB. Free memory was 177.7 MB in the beginning and 175.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:06,922 INFO L168 Benchmark]: RCFGBuilder took 1037.49 ms. Allocated memory is still 202.4 MB. Free memory was 175.1 MB in the beginning and 111.1 MB in the end (delta: 64.1 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:06,923 INFO L168 Benchmark]: TraceAbstraction took 13734.43 ms. Allocated memory was 202.4 MB in the beginning and 400.6 MB in the end (delta: 198.2 MB). Free memory was 111.1 MB in the beginning and 307.1 MB in the end (delta: -196.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:06,937 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 146.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 637.85 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 100.3 MB in the beginning and 177.7 MB in the end (delta: -77.5 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.11 ms. Allocated memory is still 202.4 MB. Free memory was 177.7 MB in the beginning and 175.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1037.49 ms. Allocated memory is still 202.4 MB. Free memory was 175.1 MB in the beginning and 111.1 MB in the end (delta: 64.1 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13734.43 ms. Allocated memory was 202.4 MB in the beginning and 400.6 MB in the end (delta: 198.2 MB). Free memory was 111.1 MB in the beginning and 307.1 MB in the end (delta: -196.1 MB). Peak memory consumption was 2.1 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: 13.5s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 1.4s, 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, 0.7s 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, 0.3s 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...