/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:11:25,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:11:25,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:11:25,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:11:25,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:11:25,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:11:25,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:11:25,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:11:25,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:11:25,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:11:25,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:11:25,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:11:25,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:11:25,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:11:25,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:11:25,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:11:25,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:11:25,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:11:25,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:11:25,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:11:25,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:11:25,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:11:25,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:11:25,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:11:25,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:11:25,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:11:25,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:11:25,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:11:25,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:11:25,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:11:25,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:11:25,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:11:25,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:11:25,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:11:25,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:11:25,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:11:25,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:11:25,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:11:25,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:11:25,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:11:25,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:11:25,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:11:25,975 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:11:25,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:11:25,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:11:25,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:11:25,977 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:11:25,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:11:25,978 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:11:25,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:11:25,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:11:25,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:11:25,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:11:25,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:11:25,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:11:25,979 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:11:25,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:11:25,980 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:11:25,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:11:25,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:11:25,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:11:25,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:11:25,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:11:25,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:11:25,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:11:25,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:11:25,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:11:25,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:11:25,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:11:25,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:11:25,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:11:25,983 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:11:26,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:11:26,490 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:11:26,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:11:26,496 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:11:26,497 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:11:26,498 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-24 18:11:26,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18edfeeb8/73388da0b26f490ebf9c39460e032321/FLAG8fe66b9f4 [2020-09-24 18:11:27,166 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:11:27,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-24 18:11:27,189 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18edfeeb8/73388da0b26f490ebf9c39460e032321/FLAG8fe66b9f4 [2020-09-24 18:11:27,471 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18edfeeb8/73388da0b26f490ebf9c39460e032321 [2020-09-24 18:11:27,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:11:27,491 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:11:27,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:11:27,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:11:27,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:11:27,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:11:27" (1/1) ... [2020-09-24 18:11:27,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d691b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:11:27, skipping insertion in model container [2020-09-24 18:11:27,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:11:27" (1/1) ... [2020-09-24 18:11:27,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:11:27,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:11:27,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:11:27,872 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:11:28,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:11:28,046 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:11:28,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:11:28 WrapperNode [2020-09-24 18:11:28,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:11:28,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:11:28,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:11:28,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:11:28,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:11:28" (1/1) ... [2020-09-24 18:11:28,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:11:28" (1/1) ... [2020-09-24 18:11:28,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:11:28" (1/1) ... [2020-09-24 18:11:28,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:11:28" (1/1) ... [2020-09-24 18:11:28,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:11:28" (1/1) ... [2020-09-24 18:11:28,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:11:28" (1/1) ... [2020-09-24 18:11:28,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:11:28" (1/1) ... [2020-09-24 18:11:28,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:11:28,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:11:28,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:11:28,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:11:28,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:11:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:11:28,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:11:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:11:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-24 18:11:28,191 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:11:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:11:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:11:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 18:11:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-24 18:11:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:11:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:11:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:11:28,371 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 18:11:29,008 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-09-24 18:11:29,009 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-09-24 18:11:29,038 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:11:29,039 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 18:11:29,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:11:29 BoogieIcfgContainer [2020-09-24 18:11:29,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:11:29,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:11:29,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:11:29,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:11:29,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:11:27" (1/3) ... [2020-09-24 18:11:29,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67276d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:11:29, skipping insertion in model container [2020-09-24 18:11:29,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:11:28" (2/3) ... [2020-09-24 18:11:29,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67276d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:11:29, skipping insertion in model container [2020-09-24 18:11:29,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:11:29" (3/3) ... [2020-09-24 18:11:29,057 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2020-09-24 18:11:29,068 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:11:29,078 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:11:29,100 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:11:29,131 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:11:29,131 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:11:29,131 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:11:29,132 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:11:29,132 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:11:29,132 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:11:29,132 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:11:29,132 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:11:29,160 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-24 18:11:29,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 18:11:29,178 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:11:29,179 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] [2020-09-24 18:11:29,180 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:11:29,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:11:29,186 INFO L82 PathProgramCache]: Analyzing trace with hash 663725490, now seen corresponding path program 1 times [2020-09-24 18:11:29,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:11:29,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060674838] [2020-09-24 18:11:29,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:11:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:29,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:29,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:29,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:29,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 18:11:29,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:11:29,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-09-24 18:11:29,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:29,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:11:29,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-24 18:11:29,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:11:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:11:29,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:11:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:29,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:29,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:29,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:11:29,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:11:29,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:11:29,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:29,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:11:29,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:11:29,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:11:29,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:11:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:11:29,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060674838] [2020-09-24 18:11:29,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:11:29,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:11:29,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137138817] [2020-09-24 18:11:29,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:11:29,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:11:29,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:11:29,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:29,969 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-09-24 18:11:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:11:30,277 INFO L93 Difference]: Finished difference Result 635 states and 851 transitions. [2020-09-24 18:11:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:11:30,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 18:11:30,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:11:30,299 INFO L225 Difference]: With dead ends: 635 [2020-09-24 18:11:30,300 INFO L226 Difference]: Without dead ends: 334 [2020-09-24 18:11:30,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:30,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-24 18:11:30,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 320. [2020-09-24 18:11:30,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-09-24 18:11:30,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 380 transitions. [2020-09-24 18:11:30,377 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 380 transitions. Word has length 142 [2020-09-24 18:11:30,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:11:30,378 INFO L479 AbstractCegarLoop]: Abstraction has 320 states and 380 transitions. [2020-09-24 18:11:30,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:11:30,379 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 380 transitions. [2020-09-24 18:11:30,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 18:11:30,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:11:30,383 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 18:11:30,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:11:30,384 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:11:30,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:11:30,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1249677314, now seen corresponding path program 1 times [2020-09-24 18:11:30,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:11:30,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144696423] [2020-09-24 18:11:30,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:11:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:30,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:30,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:30,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:30,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:30,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:30,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-24 18:11:30,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:11:30,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-09-24 18:11:30,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:30,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:11:30,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-24 18:11:30,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 18:11:30,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:11:30,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:11:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:30,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:30,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:30,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:11:30,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:11:30,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:11:30,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:11:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:11:30,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:11:30,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:11:30,935 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:11:30,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144696423] [2020-09-24 18:11:30,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:11:30,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:11:30,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167829241] [2020-09-24 18:11:30,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:11:30,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:11:30,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:11:30,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:30,950 INFO L87 Difference]: Start difference. First operand 320 states and 380 transitions. Second operand 3 states. [2020-09-24 18:11:31,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:11:31,216 INFO L93 Difference]: Finished difference Result 569 states and 720 transitions. [2020-09-24 18:11:31,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:11:31,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-09-24 18:11:31,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:11:31,222 INFO L225 Difference]: With dead ends: 569 [2020-09-24 18:11:31,222 INFO L226 Difference]: Without dead ends: 377 [2020-09-24 18:11:31,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:31,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-09-24 18:11:31,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 333. [2020-09-24 18:11:31,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-09-24 18:11:31,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 398 transitions. [2020-09-24 18:11:31,269 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 398 transitions. Word has length 158 [2020-09-24 18:11:31,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:11:31,272 INFO L479 AbstractCegarLoop]: Abstraction has 333 states and 398 transitions. [2020-09-24 18:11:31,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:11:31,273 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 398 transitions. [2020-09-24 18:11:31,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:11:31,280 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:11:31,280 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:11:31,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:11:31,281 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:11:31,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:11:31,281 INFO L82 PathProgramCache]: Analyzing trace with hash 980116923, now seen corresponding path program 1 times [2020-09-24 18:11:31,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:11:31,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994970902] [2020-09-24 18:11:31,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:11:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:31,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:31,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:31,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:31,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-24 18:11:31,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:11:31,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-24 18:11:31,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:11:31,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-24 18:11:31,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 18:11:31,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:11:31,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:11:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:31,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:31,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:31,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:11:31,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:11:31,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:11:31,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:31,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:11:31,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:11:31,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:11:31,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:11:31,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:11:31,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994970902] [2020-09-24 18:11:31,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:11:31,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:11:31,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376244643] [2020-09-24 18:11:31,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:11:31,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:11:31,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:11:31,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:31,722 INFO L87 Difference]: Start difference. First operand 333 states and 398 transitions. Second operand 3 states. [2020-09-24 18:11:31,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:11:31,996 INFO L93 Difference]: Finished difference Result 607 states and 769 transitions. [2020-09-24 18:11:31,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:11:31,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-09-24 18:11:31,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:11:32,001 INFO L225 Difference]: With dead ends: 607 [2020-09-24 18:11:32,003 INFO L226 Difference]: Without dead ends: 402 [2020-09-24 18:11:32,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:32,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-09-24 18:11:32,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 377. [2020-09-24 18:11:32,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-09-24 18:11:32,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 450 transitions. [2020-09-24 18:11:32,024 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 450 transitions. Word has length 160 [2020-09-24 18:11:32,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:11:32,026 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 450 transitions. [2020-09-24 18:11:32,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:11:32,026 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 450 transitions. [2020-09-24 18:11:32,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 18:11:32,033 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:11:32,033 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:11:32,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:11:32,034 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:11:32,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:11:32,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1724791051, now seen corresponding path program 1 times [2020-09-24 18:11:32,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:11:32,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798242514] [2020-09-24 18:11:32,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:11:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:32,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:32,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:32,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:32,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-24 18:11:32,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:11:32,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-09-24 18:11:32,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:32,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:11:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-24 18:11:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 18:11:32,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:11:32,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:11:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:32,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:32,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:32,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:11:32,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:11:32,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:11:32,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:32,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:11:32,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:11:32,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:11:32,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:11:32,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:11:32,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798242514] [2020-09-24 18:11:32,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:11:32,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:11:32,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783756322] [2020-09-24 18:11:32,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:11:32,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:11:32,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:11:32,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:11:32,625 INFO L87 Difference]: Start difference. First operand 377 states and 450 transitions. Second operand 4 states. [2020-09-24 18:11:32,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:11:32,990 INFO L93 Difference]: Finished difference Result 938 states and 1171 transitions. [2020-09-24 18:11:32,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:11:32,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 167 [2020-09-24 18:11:32,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:11:32,995 INFO L225 Difference]: With dead ends: 938 [2020-09-24 18:11:32,995 INFO L226 Difference]: Without dead ends: 689 [2020-09-24 18:11:32,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:11:32,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2020-09-24 18:11:33,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 398. [2020-09-24 18:11:33,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-09-24 18:11:33,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 476 transitions. [2020-09-24 18:11:33,011 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 476 transitions. Word has length 167 [2020-09-24 18:11:33,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:11:33,011 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 476 transitions. [2020-09-24 18:11:33,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:11:33,011 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 476 transitions. [2020-09-24 18:11:33,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-24 18:11:33,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:11:33,014 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:11:33,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:11:33,014 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:11:33,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:11:33,015 INFO L82 PathProgramCache]: Analyzing trace with hash -2007825220, now seen corresponding path program 1 times [2020-09-24 18:11:33,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:11:33,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919419034] [2020-09-24 18:11:33,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:11:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:33,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:33,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:33,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:33,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:33,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-24 18:11:33,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:11:33,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-24 18:11:33,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:11:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-24 18:11:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 18:11:33,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:11:33,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:11:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:33,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:33,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:33,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:11:33,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:11:33,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:11:33,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:33,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:11:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:11:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:11:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:11:33,378 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 18:11:33,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919419034] [2020-09-24 18:11:33,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:11:33,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:11:33,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452751479] [2020-09-24 18:11:33,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:11:33,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:11:33,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:11:33,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:33,381 INFO L87 Difference]: Start difference. First operand 398 states and 476 transitions. Second operand 3 states. [2020-09-24 18:11:33,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:11:33,580 INFO L93 Difference]: Finished difference Result 699 states and 863 transitions. [2020-09-24 18:11:33,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:11:33,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-24 18:11:33,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:11:33,585 INFO L225 Difference]: With dead ends: 699 [2020-09-24 18:11:33,585 INFO L226 Difference]: Without dead ends: 429 [2020-09-24 18:11:33,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:33,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-24 18:11:33,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 418. [2020-09-24 18:11:33,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-09-24 18:11:33,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 501 transitions. [2020-09-24 18:11:33,610 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 501 transitions. Word has length 180 [2020-09-24 18:11:33,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:11:33,611 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 501 transitions. [2020-09-24 18:11:33,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:11:33,612 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 501 transitions. [2020-09-24 18:11:33,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 18:11:33,615 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:11:33,616 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:11:33,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:11:33,617 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:11:33,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:11:33,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1814721748, now seen corresponding path program 1 times [2020-09-24 18:11:33,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:11:33,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635923878] [2020-09-24 18:11:33,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:11:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:33,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:33,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:33,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:34,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:34,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:34,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 18:11:34,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:11:34,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 974 [2020-09-24 18:11:34,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:34,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:11:34,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:11:34,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 18:11:34,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:11:34,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:11:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:34,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:34,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:34,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:11:34,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:11:34,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:11:34,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:34,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:11:34,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:11:34,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:11:34,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:11:34,787 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:11:34,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635923878] [2020-09-24 18:11:34,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:11:34,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:11:34,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927151249] [2020-09-24 18:11:34,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:11:34,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:11:34,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:11:34,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:34,797 INFO L87 Difference]: Start difference. First operand 418 states and 501 transitions. Second operand 3 states. [2020-09-24 18:11:34,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:11:34,840 INFO L93 Difference]: Finished difference Result 952 states and 1171 transitions. [2020-09-24 18:11:34,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:11:34,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-09-24 18:11:34,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:11:34,846 INFO L225 Difference]: With dead ends: 952 [2020-09-24 18:11:34,846 INFO L226 Difference]: Without dead ends: 662 [2020-09-24 18:11:34,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:34,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-09-24 18:11:34,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 660. [2020-09-24 18:11:34,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2020-09-24 18:11:34,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 797 transitions. [2020-09-24 18:11:34,874 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 797 transitions. Word has length 187 [2020-09-24 18:11:34,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:11:34,875 INFO L479 AbstractCegarLoop]: Abstraction has 660 states and 797 transitions. [2020-09-24 18:11:34,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:11:34,875 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 797 transitions. [2020-09-24 18:11:34,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-24 18:11:34,880 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:11:34,880 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:11:34,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:11:34,881 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:11:34,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:11:34,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1041585057, now seen corresponding path program 1 times [2020-09-24 18:11:34,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:11:34,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800285337] [2020-09-24 18:11:34,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:11:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:34,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:34,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:35,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:35,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:36,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:36,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:11:36,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:11:36,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1135 [2020-09-24 18:11:36,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:11:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-09-24 18:11:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 18:11:36,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:11:36,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:11:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:36,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:36,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:36,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:11:36,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:11:36,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:11:36,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:36,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:11:36,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:11:36,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:11:36,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:11:36,157 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 18:11:36,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800285337] [2020-09-24 18:11:36,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:11:36,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:11:36,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285673984] [2020-09-24 18:11:36,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:11:36,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:11:36,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:11:36,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:36,161 INFO L87 Difference]: Start difference. First operand 660 states and 797 transitions. Second operand 3 states. [2020-09-24 18:11:36,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:11:36,204 INFO L93 Difference]: Finished difference Result 1251 states and 1529 transitions. [2020-09-24 18:11:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:11:36,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-09-24 18:11:36,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:11:36,209 INFO L225 Difference]: With dead ends: 1251 [2020-09-24 18:11:36,209 INFO L226 Difference]: Without dead ends: 719 [2020-09-24 18:11:36,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:36,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-09-24 18:11:36,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2020-09-24 18:11:36,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-09-24 18:11:36,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 863 transitions. [2020-09-24 18:11:36,231 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 863 transitions. Word has length 188 [2020-09-24 18:11:36,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:11:36,231 INFO L479 AbstractCegarLoop]: Abstraction has 719 states and 863 transitions. [2020-09-24 18:11:36,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:11:36,231 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 863 transitions. [2020-09-24 18:11:36,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-24 18:11:36,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:11:36,235 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:11:36,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 18:11:36,235 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:11:36,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:11:36,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1932501654, now seen corresponding path program 1 times [2020-09-24 18:11:36,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:11:36,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031019531] [2020-09-24 18:11:36,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:11:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:36,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:36,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:36,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:36,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:36,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:11:36,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:11:36,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-09-24 18:11:36,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:36,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:11:36,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 122 [2020-09-24 18:11:36,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 18:11:36,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:11:36,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:11:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:36,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:36,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:36,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:11:36,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:11:36,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:11:36,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:36,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:11:36,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:11:36,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:11:36,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:11:36,937 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 18:11:36,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031019531] [2020-09-24 18:11:36,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:11:36,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:11:36,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940080114] [2020-09-24 18:11:36,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:11:36,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:11:36,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:11:36,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:36,940 INFO L87 Difference]: Start difference. First operand 719 states and 863 transitions. Second operand 3 states. [2020-09-24 18:11:36,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:11:36,971 INFO L93 Difference]: Finished difference Result 1274 states and 1552 transitions. [2020-09-24 18:11:36,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:11:36,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-09-24 18:11:36,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:11:36,978 INFO L225 Difference]: With dead ends: 1274 [2020-09-24 18:11:36,978 INFO L226 Difference]: Without dead ends: 728 [2020-09-24 18:11:36,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:36,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-09-24 18:11:37,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 723. [2020-09-24 18:11:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-09-24 18:11:37,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 863 transitions. [2020-09-24 18:11:37,007 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 863 transitions. Word has length 189 [2020-09-24 18:11:37,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:11:37,007 INFO L479 AbstractCegarLoop]: Abstraction has 723 states and 863 transitions. [2020-09-24 18:11:37,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:11:37,008 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 863 transitions. [2020-09-24 18:11:37,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-24 18:11:37,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:11:37,011 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:11:37,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 18:11:37,012 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:11:37,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:11:37,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1261577978, now seen corresponding path program 1 times [2020-09-24 18:11:37,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:11:37,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036787971] [2020-09-24 18:11:37,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:11:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:37,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:37,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:37,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:37,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:37,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:38,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:38,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 18:11:38,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:11:38,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1216 [2020-09-24 18:11:38,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:38,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:11:38,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 137 [2020-09-24 18:11:38,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 18:11:38,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:11:38,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:11:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:38,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:38,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:38,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:11:38,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:11:38,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:11:38,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:11:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:11:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:11:38,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:11:38,314 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 18:11:38,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036787971] [2020-09-24 18:11:38,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:11:38,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:11:38,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864323674] [2020-09-24 18:11:38,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:11:38,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:11:38,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:11:38,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:38,317 INFO L87 Difference]: Start difference. First operand 723 states and 863 transitions. Second operand 3 states. [2020-09-24 18:11:38,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:11:38,354 INFO L93 Difference]: Finished difference Result 1848 states and 2245 transitions. [2020-09-24 18:11:38,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:11:38,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-09-24 18:11:38,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:11:38,360 INFO L225 Difference]: With dead ends: 1848 [2020-09-24 18:11:38,361 INFO L226 Difference]: Without dead ends: 1298 [2020-09-24 18:11:38,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:38,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2020-09-24 18:11:38,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1296. [2020-09-24 18:11:38,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1296 states. [2020-09-24 18:11:38,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1557 transitions. [2020-09-24 18:11:38,408 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1557 transitions. Word has length 191 [2020-09-24 18:11:38,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:11:38,408 INFO L479 AbstractCegarLoop]: Abstraction has 1296 states and 1557 transitions. [2020-09-24 18:11:38,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:11:38,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1557 transitions. [2020-09-24 18:11:38,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-24 18:11:38,412 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:11:38,413 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:11:38,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 18:11:38,414 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:11:38,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:11:38,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1678974584, now seen corresponding path program 1 times [2020-09-24 18:11:38,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:11:38,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477815792] [2020-09-24 18:11:38,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:11:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:38,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:38,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:38,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:38,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:38,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:39,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:39,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:39,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 18:11:39,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 18:11:39,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 948 [2020-09-24 18:11:39,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:39,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:11:39,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 137 [2020-09-24 18:11:39,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 18:11:39,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:11:39,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:11:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:39,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:39,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:39,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:11:39,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:11:39,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:11:39,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:11:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:11:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:11:39,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:11:39,456 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 18:11:39,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477815792] [2020-09-24 18:11:39,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:11:39,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:11:39,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718819237] [2020-09-24 18:11:39,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:11:39,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:11:39,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:11:39,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:39,459 INFO L87 Difference]: Start difference. First operand 1296 states and 1557 transitions. Second operand 3 states. [2020-09-24 18:11:39,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:11:39,496 INFO L93 Difference]: Finished difference Result 1902 states and 2292 transitions. [2020-09-24 18:11:39,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:11:39,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-09-24 18:11:39,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:11:39,503 INFO L225 Difference]: With dead ends: 1902 [2020-09-24 18:11:39,503 INFO L226 Difference]: Without dead ends: 1312 [2020-09-24 18:11:39,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:11:39,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2020-09-24 18:11:39,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1310. [2020-09-24 18:11:39,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1310 states. [2020-09-24 18:11:39,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1566 transitions. [2020-09-24 18:11:39,541 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1566 transitions. Word has length 191 [2020-09-24 18:11:39,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:11:39,542 INFO L479 AbstractCegarLoop]: Abstraction has 1310 states and 1566 transitions. [2020-09-24 18:11:39,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:11:39,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1566 transitions. [2020-09-24 18:11:39,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-24 18:11:39,545 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:11:39,546 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:11:39,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 18:11:39,546 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:11:39,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:11:39,547 INFO L82 PathProgramCache]: Analyzing trace with hash 2059637971, now seen corresponding path program 1 times [2020-09-24 18:11:39,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:11:39,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777442033] [2020-09-24 18:11:39,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:11:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:39,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:39,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:39,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:39,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:39,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:39,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:40,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:40,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:41,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:41,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-24 18:11:41,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 18:11:41,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2202 [2020-09-24 18:11:41,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:41,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:11:41,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-24 18:11:41,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 18:11:41,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:11:41,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:11:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:41,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:41,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:41,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:11:41,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:11:41,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:11:41,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:41,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:11:41,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:11:41,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:11:41,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:11:41,867 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 18:11:41,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777442033] [2020-09-24 18:11:41,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:11:41,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:11:41,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169184524] [2020-09-24 18:11:41,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:11:41,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:11:41,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:11:41,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:11:41,870 INFO L87 Difference]: Start difference. First operand 1310 states and 1566 transitions. Second operand 5 states. [2020-09-24 18:11:42,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:11:42,124 INFO L93 Difference]: Finished difference Result 1916 states and 2298 transitions. [2020-09-24 18:11:42,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:11:42,125 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 192 [2020-09-24 18:11:42,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:11:42,134 INFO L225 Difference]: With dead ends: 1916 [2020-09-24 18:11:42,134 INFO L226 Difference]: Without dead ends: 1366 [2020-09-24 18:11:42,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:11:42,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2020-09-24 18:11:42,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1310. [2020-09-24 18:11:42,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1310 states. [2020-09-24 18:11:42,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1565 transitions. [2020-09-24 18:11:42,202 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1565 transitions. Word has length 192 [2020-09-24 18:11:42,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:11:42,202 INFO L479 AbstractCegarLoop]: Abstraction has 1310 states and 1565 transitions. [2020-09-24 18:11:42,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:11:42,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1565 transitions. [2020-09-24 18:11:42,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 18:11:42,208 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:11:42,208 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:11:42,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 18:11:42,209 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:11:42,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:11:42,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1020047875, now seen corresponding path program 1 times [2020-09-24 18:11:42,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:11:42,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265562765] [2020-09-24 18:11:42,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:11:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:42,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:42,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:42,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:42,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-24 18:11:42,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:11:42,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-09-24 18:11:42,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:11:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 18:11:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 18:11:42,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:11:42,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:11:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:11:42,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:11:42,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:11:42,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:11:42,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:11:42,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:11:42,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:11:42,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:11:42,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:11:42,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:11:42,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:11:42,843 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 18:11:42,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265562765] [2020-09-24 18:11:42,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:11:42,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:11:42,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182775045] [2020-09-24 18:11:42,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:11:42,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:11:42,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:11:42,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:11:42,845 INFO L87 Difference]: Start difference. First operand 1310 states and 1565 transitions. Second operand 4 states. [2020-09-24 18:11:43,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:11:43,201 INFO L93 Difference]: Finished difference Result 2447 states and 2966 transitions. [2020-09-24 18:11:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:11:43,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2020-09-24 18:11:43,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:11:43,210 INFO L225 Difference]: With dead ends: 2447 [2020-09-24 18:11:43,211 INFO L226 Difference]: Without dead ends: 1911 [2020-09-24 18:11:43,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:11:43,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2020-09-24 18:11:43,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1313. [2020-09-24 18:11:43,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1313 states. [2020-09-24 18:11:43,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1568 transitions. [2020-09-24 18:11:43,269 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1568 transitions. Word has length 195 [2020-09-24 18:11:43,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:11:43,269 INFO L479 AbstractCegarLoop]: Abstraction has 1313 states and 1568 transitions. [2020-09-24 18:11:43,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:11:43,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1568 transitions. [2020-09-24 18:11:43,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 18:11:43,272 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:11:43,273 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:11:43,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 18:11:43,273 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:11:43,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:11:43,274 INFO L82 PathProgramCache]: Analyzing trace with hash 192610461, now seen corresponding path program 1 times [2020-09-24 18:11:43,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:11:43,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28491835] [2020-09-24 18:11:43,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:11:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:11:43,306 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:11:43,307 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:11:43,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 18:11:43,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:11:43 BoogieIcfgContainer [2020-09-24 18:11:43,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:11:43,377 INFO L168 Benchmark]: Toolchain (without parser) took 15879.74 ms. Allocated memory was 140.0 MB in the beginning and 432.0 MB in the end (delta: 292.0 MB). Free memory was 101.4 MB in the beginning and 248.6 MB in the end (delta: -147.2 MB). Peak memory consumption was 144.9 MB. Max. memory is 7.1 GB. [2020-09-24 18:11:43,378 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-24 18:11:43,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 554.37 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 100.8 MB in the beginning and 178.0 MB in the end (delta: -77.2 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:11:43,381 INFO L168 Benchmark]: Boogie Preprocessor took 59.87 ms. Allocated memory is still 202.4 MB. Free memory was 178.0 MB in the beginning and 175.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:11:43,382 INFO L168 Benchmark]: RCFGBuilder took 939.50 ms. Allocated memory is still 202.4 MB. Free memory was 175.4 MB in the beginning and 115.0 MB in the end (delta: 60.3 MB). Peak memory consumption was 60.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:11:43,387 INFO L168 Benchmark]: TraceAbstraction took 14316.48 ms. Allocated memory was 202.4 MB in the beginning and 432.0 MB in the end (delta: 229.6 MB). Free memory was 114.4 MB in the beginning and 248.6 MB in the end (delta: -134.2 MB). Peak memory consumption was 95.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:11:43,393 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 554.37 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 100.8 MB in the beginning and 178.0 MB in the end (delta: -77.2 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.87 ms. Allocated memory is still 202.4 MB. Free memory was 178.0 MB in the beginning and 175.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 939.50 ms. Allocated memory is still 202.4 MB. Free memory was 175.4 MB in the beginning and 115.0 MB in the end (delta: 60.3 MB). Peak memory consumption was 60.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14316.48 ms. Allocated memory was 202.4 MB in the beginning and 432.0 MB in the end (delta: 229.6 MB). Free memory was 114.4 MB in the beginning and 248.6 MB in the end (delta: -134.2 MB). Peak memory consumption was 95.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 614]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 301. Possible FailurePath: [L623] int __retres1 ; [L627] CALL ssl3_connect() [L9] int s__info_callback = __VERIFIER_nondet_int(); [L10] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L11] int s__state ; [L12] int s__new_session ; [L13] int s__server ; [L14] unsigned int s__version = __VERIFIER_nondet_uint(); [L15] int s__type ; [L16] int s__init_num ; [L17] int s__bbio = __VERIFIER_nondet_int(); [L18] int s__wbio = __VERIFIER_nondet_int(); [L19] int s__hit = __VERIFIER_nondet_int(); [L20] int s__rwstate ; [L21] int s__init_buf___0 ; [L22] int s__debug = __VERIFIER_nondet_int(); [L23] int s__shutdown ; [L24] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L25] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L26] unsigned int s__ctx__stats__sess_connect ; [L27] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L29] int s__s3__change_cipher_spec ; [L30] int s__s3__flags ; [L31] int s__s3__delay_buf_pop_ret ; [L32] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__next_state___0 ; [L38] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L39] int s__session__cipher ; [L40] int s__session__compress_meth ; [L41] int buf ; [L42] unsigned long tmp ; [L43] unsigned long l ; [L44] int num1 ; [L45] int cb ; [L46] int ret ; [L47] int new_state ; [L48] int state ; [L49] int skip ; [L50] int tmp___0 ; [L51] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L52] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L53] int tmp___3 = __VERIFIER_nondet_int(); [L54] int tmp___4 = __VERIFIER_nondet_int(); [L55] int tmp___5 = __VERIFIER_nondet_int(); [L56] int tmp___6 = __VERIFIER_nondet_int(); [L57] int tmp___7 = __VERIFIER_nondet_int(); [L58] int tmp___8 = __VERIFIER_nondet_int(); [L59] int tmp___9 = __VERIFIER_nondet_int(); [L60] int blastFlag ; [L61] int ag_X ; [L62] int ag_Y ; [L63] int ag_Z ; [L64] int __retres60 ; [L67] s__state = 12292 [L68] blastFlag = 0 [L69] tmp = __VERIFIER_nondet_int() [L70] cb = 0 [L71] ret = -1 [L72] skip = 0 [L73] tmp___0 = 0 [L74] COND TRUE s__info_callback != 0 [L75] cb = s__info_callback [L83] s__in_handshake = s__in_handshake + 1 [L84] COND FALSE !(tmp___1 + 12288) [L93] COND TRUE \read(s__hit) [L94] ag_Y = 208 [L99] COND TRUE 1 [L101] state = s__state [L102] COND TRUE s__state == 12292 [L205] s__new_session = 1 [L206] s__state = 4096 [L207] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L212] s__server = 0 [L213] COND TRUE cb != 0 [L218] COND FALSE !(s__version + 65280 != 768) [L224] s__type = 4096 [L225] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L243] COND FALSE !(! tmp___4) [L249] COND FALSE !(! tmp___5) [L255] s__state = 4368 [L256] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L257] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND TRUE s__state == 4368 [L261] s__shutdown = 0 [L262] ret = __VERIFIER_nondet_int() [L263] COND TRUE blastFlag == 0 [L264] blastFlag = 1 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] ag_X = s__state - 32 [L275] s__init_num = 0 [L276] COND FALSE !((unsigned long )s__bbio != (unsigned long )s__wbio) [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND TRUE s__state == 4384 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L294] COND FALSE !(ret <= 0) [L299] s__state = ag_X [L300] COND TRUE \read(s__hit) [L301] s__state = s__state | ag_Y [L305] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND FALSE !(s__state == 4384) [L126] COND FALSE !(s__state == 4385) [L129] COND FALSE !(s__state == 4400) [L132] COND FALSE !(s__state == 4401) [L135] COND FALSE !(s__state == 4416) [L138] COND FALSE !(s__state == 4417) [L141] COND TRUE s__state == 4432 [L351] ret = __VERIFIER_nondet_int() [L352] COND TRUE blastFlag <= 5 [L614] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 350 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.1s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5327 SDtfs, 1946 SDslu, 5008 SDs, 0 SdLazy, 1134 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1313occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 1050 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 2343 NumberOfCodeBlocks, 2343 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2128 ConstructedInterpolants, 0 QuantifiedInterpolants, 497602 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 157/157 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...