/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:25:53,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:25:53,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:25:53,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:25:53,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:25:53,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:25:53,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:25:53,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:25:53,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:25:53,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:25:53,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:25:53,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:25:53,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:25:53,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:25:53,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:25:53,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:25:53,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:25:53,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:25:53,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:25:53,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:25:53,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:25:53,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:25:53,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:25:53,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:25:53,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:25:53,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:25:53,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:25:53,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:25:53,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:25:53,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:25:53,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:25:53,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:25:53,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:25:53,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:25:53,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:25:53,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:25:53,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:25:53,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:25:53,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:25:53,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:25:53,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:25:53,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:25:53,216 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:25:53,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:25:53,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:25:53,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:25:53,220 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:25:53,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:25:53,221 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:25:53,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:25:53,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:25:53,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:25:53,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:25:53,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:25:53,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:25:53,224 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:25:53,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:25:53,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:25:53,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:25:53,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:25:53,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:25:53,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:25:53,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:25:53,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:25:53,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:25:53,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:25:53,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:25:53,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:25:53,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:25:53,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:25:53,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:25:53,228 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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:25:53,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:25:53,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:25:53,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:25:53,686 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:25:53,686 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:25:53,687 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-25 13:25:53,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e692059a3/2dd46cc48dc54ea3a58cb2ac42219c58/FLAGf1be02682 [2020-09-25 13:25:54,342 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:25:54,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-25 13:25:54,356 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e692059a3/2dd46cc48dc54ea3a58cb2ac42219c58/FLAGf1be02682 [2020-09-25 13:25:54,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e692059a3/2dd46cc48dc54ea3a58cb2ac42219c58 [2020-09-25 13:25:54,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:25:54,685 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:25:54,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:25:54,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:25:54,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:25:54,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:25:54" (1/1) ... [2020-09-25 13:25:54,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568e2849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:54, skipping insertion in model container [2020-09-25 13:25:54,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:25:54" (1/1) ... [2020-09-25 13:25:54,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:25:54,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:25:55,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:25:55,110 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:25:55,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:25:55,295 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:25:55,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:55 WrapperNode [2020-09-25 13:25:55,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:25:55,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:25:55,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:25:55,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:25:55,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:55" (1/1) ... [2020-09-25 13:25:55,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:55" (1/1) ... [2020-09-25 13:25:55,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:55" (1/1) ... [2020-09-25 13:25:55,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:55" (1/1) ... [2020-09-25 13:25:55,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:55" (1/1) ... [2020-09-25 13:25:55,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:55" (1/1) ... [2020-09-25 13:25:55,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:55" (1/1) ... [2020-09-25 13:25:55,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:25:55,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:25:55,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:25:55,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:25:55,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:25:55,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:25:55,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:25:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 13:25:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:25:55,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:25:55,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 13:25:55,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:25:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 13:25:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 13:25:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:25:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:25:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:25:55,630 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 13:25:56,287 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 13:25:56,288 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 13:25:56,314 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:25:56,314 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:25:56,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:25:56 BoogieIcfgContainer [2020-09-25 13:25:56,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:25:56,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:25:56,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:25:56,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:25:56,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:25:54" (1/3) ... [2020-09-25 13:25:56,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f55c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:25:56, skipping insertion in model container [2020-09-25 13:25:56,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:55" (2/3) ... [2020-09-25 13:25:56,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f55c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:25:56, skipping insertion in model container [2020-09-25 13:25:56,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:25:56" (3/3) ... [2020-09-25 13:25:56,332 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2020-09-25 13:25:56,344 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:25:56,356 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:25:56,379 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:25:56,415 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:25:56,415 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:25:56,415 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:25:56,415 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:25:56,416 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:25:56,416 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:25:56,416 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:25:56,416 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:25:56,447 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states. [2020-09-25 13:25:56,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 13:25:56,466 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:56,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:56,468 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:56,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:56,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1739904560, now seen corresponding path program 1 times [2020-09-25 13:25:56,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:56,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891870500] [2020-09-25 13:25:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:56,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:57,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:57,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:57,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:57,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 13:25:57,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:25:57,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1160 [2020-09-25 13:25:57,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:57,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:57,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:25:57,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:25:57,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 13:25:57,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:25:58,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:58,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:58,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:58,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:58,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:58,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:25:58,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:58,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:58,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:25:58,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:25:58,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891870500] [2020-09-25 13:25:58,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:58,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:25:58,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196360144] [2020-09-25 13:25:58,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:25:58,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:58,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:25:58,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:25:58,337 INFO L87 Difference]: Start difference. First operand 391 states. Second operand 6 states. [2020-09-25 13:25:58,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:58,630 INFO L93 Difference]: Finished difference Result 635 states and 810 transitions. [2020-09-25 13:25:58,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:25:58,632 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 13:25:58,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:58,652 INFO L225 Difference]: With dead ends: 635 [2020-09-25 13:25:58,653 INFO L226 Difference]: Without dead ends: 352 [2020-09-25 13:25:58,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:25:58,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2020-09-25 13:25:58,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2020-09-25 13:25:58,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-09-25 13:25:58,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 409 transitions. [2020-09-25 13:25:58,733 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 409 transitions. Word has length 167 [2020-09-25 13:25:58,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:58,734 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 409 transitions. [2020-09-25 13:25:58,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:25:58,735 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 409 transitions. [2020-09-25 13:25:58,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 13:25:58,739 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:58,739 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:58,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:25:58,740 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:58,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:58,741 INFO L82 PathProgramCache]: Analyzing trace with hash -5837123, now seen corresponding path program 1 times [2020-09-25 13:25:58,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:58,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410106876] [2020-09-25 13:25:58,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:58,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:58,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:58,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:59,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:59,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 13:25:59,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:25:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-09-25 13:25:59,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:59,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:59,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 13:25:59,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 13:25:59,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:59,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:59,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:59,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:59,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:59,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:59,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:25:59,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:59,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:59,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:59,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:59,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:59,245 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:25:59,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410106876] [2020-09-25 13:25:59,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:59,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:59,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518532360] [2020-09-25 13:25:59,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:59,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:59,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:59,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:59,250 INFO L87 Difference]: Start difference. First operand 352 states and 409 transitions. Second operand 3 states. [2020-09-25 13:25:59,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:59,312 INFO L93 Difference]: Finished difference Result 745 states and 909 transitions. [2020-09-25 13:25:59,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:59,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-09-25 13:25:59,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:59,317 INFO L225 Difference]: With dead ends: 745 [2020-09-25 13:25:59,318 INFO L226 Difference]: Without dead ends: 545 [2020-09-25 13:25:59,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:59,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-09-25 13:25:59,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2020-09-25 13:25:59,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-09-25 13:25:59,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 651 transitions. [2020-09-25 13:25:59,359 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 651 transitions. Word has length 190 [2020-09-25 13:25:59,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:59,359 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 651 transitions. [2020-09-25 13:25:59,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:59,360 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 651 transitions. [2020-09-25 13:25:59,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-25 13:25:59,367 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:59,369 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:59,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:25:59,369 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:59,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:59,370 INFO L82 PathProgramCache]: Analyzing trace with hash -525577979, now seen corresponding path program 1 times [2020-09-25 13:25:59,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:59,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723869422] [2020-09-25 13:25:59,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:59,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:59,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:59,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:59,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:59,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-09-25 13:25:59,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:25:59,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-09-25 13:25:59,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:59,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-09-25 13:25:59,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 13:25:59,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:59,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:59,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:59,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:59,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:59,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:59,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:25:59,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:59,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:59,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:59,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:59,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:59,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:59,871 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:25:59,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723869422] [2020-09-25 13:25:59,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:59,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:59,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25253100] [2020-09-25 13:25:59,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:59,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:59,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:59,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:59,874 INFO L87 Difference]: Start difference. First operand 545 states and 651 transitions. Second operand 3 states. [2020-09-25 13:25:59,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:59,936 INFO L93 Difference]: Finished difference Result 938 states and 1151 transitions. [2020-09-25 13:25:59,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:59,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-09-25 13:25:59,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:59,942 INFO L225 Difference]: With dead ends: 938 [2020-09-25 13:25:59,942 INFO L226 Difference]: Without dead ends: 738 [2020-09-25 13:25:59,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:59,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2020-09-25 13:25:59,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 738. [2020-09-25 13:25:59,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 738 states. [2020-09-25 13:25:59,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 894 transitions. [2020-09-25 13:25:59,972 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 894 transitions. Word has length 210 [2020-09-25 13:25:59,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:59,973 INFO L479 AbstractCegarLoop]: Abstraction has 738 states and 894 transitions. [2020-09-25 13:25:59,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:59,973 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 894 transitions. [2020-09-25 13:25:59,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-25 13:25:59,978 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:59,978 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:59,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:25:59,979 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:59,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:59,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1852648600, now seen corresponding path program 1 times [2020-09-25 13:25:59,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:59,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719703272] [2020-09-25 13:25:59,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:00,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:00,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:00,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:00,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 13:26:00,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:26:00,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-09-25 13:26:00,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:00,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:00,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:00,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 215 [2020-09-25 13:26:00,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 13:26:00,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:00,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:00,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:00,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:00,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:00,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:00,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:26:00,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:00,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:00,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:00,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:00,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:00,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:00,463 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 13:26:00,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719703272] [2020-09-25 13:26:00,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:00,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:00,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764029222] [2020-09-25 13:26:00,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:00,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:00,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:00,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:00,475 INFO L87 Difference]: Start difference. First operand 738 states and 894 transitions. Second operand 3 states. [2020-09-25 13:26:00,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:00,784 INFO L93 Difference]: Finished difference Result 1510 states and 1932 transitions. [2020-09-25 13:26:00,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:00,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2020-09-25 13:26:00,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:00,793 INFO L225 Difference]: With dead ends: 1510 [2020-09-25 13:26:00,793 INFO L226 Difference]: Without dead ends: 921 [2020-09-25 13:26:00,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:00,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-09-25 13:26:00,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 870. [2020-09-25 13:26:00,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 870 states. [2020-09-25 13:26:00,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1053 transitions. [2020-09-25 13:26:00,836 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1053 transitions. Word has length 231 [2020-09-25 13:26:00,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:00,838 INFO L479 AbstractCegarLoop]: Abstraction has 870 states and 1053 transitions. [2020-09-25 13:26:00,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:00,838 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1053 transitions. [2020-09-25 13:26:00,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-25 13:26:00,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:00,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:00,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:26:00,877 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:00,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:00,878 INFO L82 PathProgramCache]: Analyzing trace with hash 598717384, now seen corresponding path program 1 times [2020-09-25 13:26:00,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:00,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838429529] [2020-09-25 13:26:00,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:00,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:01,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:01,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:01,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:01,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 13:26:01,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:26:01,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 637 [2020-09-25 13:26:01,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:01,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:01,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-09-25 13:26:01,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 13:26:01,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:01,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:01,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:01,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:01,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:01,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:01,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:26:01,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:01,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:01,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:01,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:01,653 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 13:26:01,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838429529] [2020-09-25 13:26:01,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:01,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:01,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310022625] [2020-09-25 13:26:01,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:01,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:01,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:01,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:01,656 INFO L87 Difference]: Start difference. First operand 870 states and 1053 transitions. Second operand 3 states. [2020-09-25 13:26:01,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:01,722 INFO L93 Difference]: Finished difference Result 1588 states and 1955 transitions. [2020-09-25 13:26:01,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:01,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2020-09-25 13:26:01,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:01,730 INFO L225 Difference]: With dead ends: 1588 [2020-09-25 13:26:01,731 INFO L226 Difference]: Without dead ends: 1107 [2020-09-25 13:26:01,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:01,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2020-09-25 13:26:01,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1107. [2020-09-25 13:26:01,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1107 states. [2020-09-25 13:26:01,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1350 transitions. [2020-09-25 13:26:01,767 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1350 transitions. Word has length 231 [2020-09-25 13:26:01,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:01,768 INFO L479 AbstractCegarLoop]: Abstraction has 1107 states and 1350 transitions. [2020-09-25 13:26:01,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:01,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1350 transitions. [2020-09-25 13:26:01,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-09-25 13:26:01,774 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:01,775 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:01,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:26:01,776 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:01,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:01,776 INFO L82 PathProgramCache]: Analyzing trace with hash -2112197708, now seen corresponding path program 1 times [2020-09-25 13:26:01,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:01,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994408975] [2020-09-25 13:26:01,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:01,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:02,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:02,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:02,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:02,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-25 13:26:02,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:26:02,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 529 [2020-09-25 13:26:02,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:02,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-09-25 13:26:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 13:26:02,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:02,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:02,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:02,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:02,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:02,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:02,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:02,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:02,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:02,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:02,475 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 13:26:02,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994408975] [2020-09-25 13:26:02,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:02,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:02,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239453742] [2020-09-25 13:26:02,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:02,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:02,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:02,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:02,478 INFO L87 Difference]: Start difference. First operand 1107 states and 1350 transitions. Second operand 3 states. [2020-09-25 13:26:02,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:02,744 INFO L93 Difference]: Finished difference Result 2335 states and 2970 transitions. [2020-09-25 13:26:02,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:02,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-09-25 13:26:02,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:02,756 INFO L225 Difference]: With dead ends: 2335 [2020-09-25 13:26:02,757 INFO L226 Difference]: Without dead ends: 1380 [2020-09-25 13:26:02,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:02,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-09-25 13:26:02,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1283. [2020-09-25 13:26:02,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2020-09-25 13:26:02,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1582 transitions. [2020-09-25 13:26:02,817 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1582 transitions. Word has length 255 [2020-09-25 13:26:02,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:02,818 INFO L479 AbstractCegarLoop]: Abstraction has 1283 states and 1582 transitions. [2020-09-25 13:26:02,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:02,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1582 transitions. [2020-09-25 13:26:02,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-09-25 13:26:02,829 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:02,830 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:02,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:26:02,830 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:02,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:02,831 INFO L82 PathProgramCache]: Analyzing trace with hash -814233215, now seen corresponding path program 1 times [2020-09-25 13:26:02,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:02,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740430011] [2020-09-25 13:26:02,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:02,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:03,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:03,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:03,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:03,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:03,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:05,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-09-25 13:26:05,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:26:05,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2584 [2020-09-25 13:26:05,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:05,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:05,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:05,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-09-25 13:26:05,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 13:26:05,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:05,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:05,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:05,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:05,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:05,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:05,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:05,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:05,582 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-25 13:26:05,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740430011] [2020-09-25 13:26:05,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:05,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:05,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325395031] [2020-09-25 13:26:05,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:05,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:05,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:05,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:05,585 INFO L87 Difference]: Start difference. First operand 1283 states and 1582 transitions. Second operand 3 states. [2020-09-25 13:26:05,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:05,629 INFO L93 Difference]: Finished difference Result 3437 states and 4278 transitions. [2020-09-25 13:26:05,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:05,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 262 [2020-09-25 13:26:05,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:05,642 INFO L225 Difference]: With dead ends: 3437 [2020-09-25 13:26:05,642 INFO L226 Difference]: Without dead ends: 2306 [2020-09-25 13:26:05,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:05,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2020-09-25 13:26:05,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 2304. [2020-09-25 13:26:05,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2304 states. [2020-09-25 13:26:05,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2304 states to 2304 states and 2839 transitions. [2020-09-25 13:26:05,707 INFO L78 Accepts]: Start accepts. Automaton has 2304 states and 2839 transitions. Word has length 262 [2020-09-25 13:26:05,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:05,707 INFO L479 AbstractCegarLoop]: Abstraction has 2304 states and 2839 transitions. [2020-09-25 13:26:05,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:05,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2304 states and 2839 transitions. [2020-09-25 13:26:05,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-09-25 13:26:05,715 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:05,715 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:05,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:26:05,716 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:05,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:05,717 INFO L82 PathProgramCache]: Analyzing trace with hash 815558515, now seen corresponding path program 1 times [2020-09-25 13:26:05,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:05,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512728195] [2020-09-25 13:26:05,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:05,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:05,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:06,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:06,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:07,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:10,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:10,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-25 13:26:10,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:26:10,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4523 [2020-09-25 13:26:10,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:10,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 199 [2020-09-25 13:26:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:26:10,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:10,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:10,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:10,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:10,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:10,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:10,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:10,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:10,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:10,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:10,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:10,374 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-25 13:26:10,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512728195] [2020-09-25 13:26:10,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:10,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:10,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100438299] [2020-09-25 13:26:10,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:10,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:10,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:10,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:10,377 INFO L87 Difference]: Start difference. First operand 2304 states and 2839 transitions. Second operand 3 states. [2020-09-25 13:26:10,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:10,463 INFO L93 Difference]: Finished difference Result 4492 states and 5566 transitions. [2020-09-25 13:26:10,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:10,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 265 [2020-09-25 13:26:10,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:10,478 INFO L225 Difference]: With dead ends: 4492 [2020-09-25 13:26:10,478 INFO L226 Difference]: Without dead ends: 2340 [2020-09-25 13:26:10,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:10,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2020-09-25 13:26:10,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 2320. [2020-09-25 13:26:10,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2020-09-25 13:26:10,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 2851 transitions. [2020-09-25 13:26:10,552 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 2851 transitions. Word has length 265 [2020-09-25 13:26:10,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:10,553 INFO L479 AbstractCegarLoop]: Abstraction has 2320 states and 2851 transitions. [2020-09-25 13:26:10,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:10,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 2851 transitions. [2020-09-25 13:26:10,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-25 13:26:10,563 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:10,564 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:10,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 13:26:10,564 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:10,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:10,564 INFO L82 PathProgramCache]: Analyzing trace with hash -660417693, now seen corresponding path program 1 times [2020-09-25 13:26:10,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:10,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627776132] [2020-09-25 13:26:10,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:10,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:10,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:10,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:10,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:11,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:11,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:11,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:11,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:11,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:11,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:11,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:12,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:13,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:13,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-25 13:26:13,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 13:26:13,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2955 [2020-09-25 13:26:13,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:13,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:13,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:13,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 13:26:13,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 13:26:13,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:13,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:13,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:13,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:13,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:13,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:13,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:26:13,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:13,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:13,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:13,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:13,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:13,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:13,687 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-09-25 13:26:13,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627776132] [2020-09-25 13:26:13,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:13,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:13,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423821805] [2020-09-25 13:26:13,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:13,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:13,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:13,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:13,694 INFO L87 Difference]: Start difference. First operand 2320 states and 2851 transitions. Second operand 3 states. [2020-09-25 13:26:13,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:13,788 INFO L93 Difference]: Finished difference Result 6632 states and 8205 transitions. [2020-09-25 13:26:13,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:13,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2020-09-25 13:26:13,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:13,812 INFO L225 Difference]: With dead ends: 6632 [2020-09-25 13:26:13,812 INFO L226 Difference]: Without dead ends: 4464 [2020-09-25 13:26:13,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:13,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4464 states. [2020-09-25 13:26:13,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4464 to 4462. [2020-09-25 13:26:13,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4462 states. [2020-09-25 13:26:13,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4462 states to 4462 states and 5489 transitions. [2020-09-25 13:26:13,974 INFO L78 Accepts]: Start accepts. Automaton has 4462 states and 5489 transitions. Word has length 271 [2020-09-25 13:26:13,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:13,975 INFO L479 AbstractCegarLoop]: Abstraction has 4462 states and 5489 transitions. [2020-09-25 13:26:13,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:13,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4462 states and 5489 transitions. [2020-09-25 13:26:13,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-25 13:26:13,994 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:13,994 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:13,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 13:26:13,995 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:13,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:13,996 INFO L82 PathProgramCache]: Analyzing trace with hash -993060831, now seen corresponding path program 1 times [2020-09-25 13:26:13,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:13,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234127260] [2020-09-25 13:26:13,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:14,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:14,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:14,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:14,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:14,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:14,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:14,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:14,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:14,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:15,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:15,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:16,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:16,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-25 13:26:16,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 13:26:16,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2934 [2020-09-25 13:26:16,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:16,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-09-25 13:26:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:26:16,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:17,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:17,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:17,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:17,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:17,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:17,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:17,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:17,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:17,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:17,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:17,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:17,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:17,163 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 13:26:17,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234127260] [2020-09-25 13:26:17,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:17,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:17,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024529717] [2020-09-25 13:26:17,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:17,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:17,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:17,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:17,167 INFO L87 Difference]: Start difference. First operand 4462 states and 5489 transitions. Second operand 3 states. [2020-09-25 13:26:17,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:17,248 INFO L93 Difference]: Finished difference Result 6647 states and 8183 transitions. [2020-09-25 13:26:17,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:17,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2020-09-25 13:26:17,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:17,269 INFO L225 Difference]: With dead ends: 6647 [2020-09-25 13:26:17,270 INFO L226 Difference]: Without dead ends: 4479 [2020-09-25 13:26:17,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:17,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4479 states. [2020-09-25 13:26:17,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4479 to 4477. [2020-09-25 13:26:17,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4477 states. [2020-09-25 13:26:17,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 5487 transitions. [2020-09-25 13:26:17,415 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 5487 transitions. Word has length 271 [2020-09-25 13:26:17,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:17,416 INFO L479 AbstractCegarLoop]: Abstraction has 4477 states and 5487 transitions. [2020-09-25 13:26:17,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:17,417 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 5487 transitions. [2020-09-25 13:26:17,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-25 13:26:17,429 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:17,430 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:17,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 13:26:17,430 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:17,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:17,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1182669231, now seen corresponding path program 1 times [2020-09-25 13:26:17,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:17,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224821446] [2020-09-25 13:26:17,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:17,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:17,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:17,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:17,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:17,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:17,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:18,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:18,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:19,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:19,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:19,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:19,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:20,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:20,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:20,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:20,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:20,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:21,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:21,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:22,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:22,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-09-25 13:26:22,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-09-25 13:26:22,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 13:26:22,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:22,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:22,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:26:22,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 13:26:22,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-09-25 13:26:22,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:22,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:22,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:22,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:22,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:22,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:22,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:22,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:22,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:22,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:22,695 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-25 13:26:22,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224821446] [2020-09-25 13:26:22,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:26:22,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 13:26:22,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344217794] [2020-09-25 13:26:22,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:26:22,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:22,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:26:22,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:26:22,700 INFO L87 Difference]: Start difference. First operand 4477 states and 5487 transitions. Second operand 7 states. [2020-09-25 13:26:22,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:22,953 INFO L93 Difference]: Finished difference Result 6722 states and 8246 transitions. [2020-09-25 13:26:22,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 13:26:22,954 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 274 [2020-09-25 13:26:22,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:22,974 INFO L225 Difference]: With dead ends: 6722 [2020-09-25 13:26:22,974 INFO L226 Difference]: Without dead ends: 4550 [2020-09-25 13:26:22,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:26:22,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2020-09-25 13:26:23,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 4503. [2020-09-25 13:26:23,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4503 states. [2020-09-25 13:26:23,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4503 states to 4503 states and 5516 transitions. [2020-09-25 13:26:23,091 INFO L78 Accepts]: Start accepts. Automaton has 4503 states and 5516 transitions. Word has length 274 [2020-09-25 13:26:23,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:23,091 INFO L479 AbstractCegarLoop]: Abstraction has 4503 states and 5516 transitions. [2020-09-25 13:26:23,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:26:23,092 INFO L276 IsEmpty]: Start isEmpty. Operand 4503 states and 5516 transitions. [2020-09-25 13:26:23,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-09-25 13:26:23,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:23,111 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:23,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 13:26:23,111 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:23,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:23,112 INFO L82 PathProgramCache]: Analyzing trace with hash 479811228, now seen corresponding path program 2 times [2020-09-25 13:26:23,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:23,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369422570] [2020-09-25 13:26:23,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:23,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:23,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:23,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:23,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:23,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:23,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:24,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:24,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:24,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:24,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:24,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:25,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:25,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:28,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:28,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:28,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:28,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-09-25 13:26:28,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 13:26:28,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 13:26:28,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:28,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:26:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-25 13:26:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 13:26:28,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:26:28,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:28,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:28,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:28,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:28,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:28,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:26:28,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:28,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:28,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:28,283 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 88 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 13:26:28,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369422570] [2020-09-25 13:26:28,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:26:28,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 13:26:28,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660487791] [2020-09-25 13:26:28,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:26:28,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:28,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:26:28,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:26:28,286 INFO L87 Difference]: Start difference. First operand 4503 states and 5516 transitions. Second operand 4 states. [2020-09-25 13:26:28,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:28,584 INFO L93 Difference]: Finished difference Result 11325 states and 13861 transitions. [2020-09-25 13:26:28,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:26:28,584 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 277 [2020-09-25 13:26:28,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:28,612 INFO L225 Difference]: With dead ends: 11325 [2020-09-25 13:26:28,613 INFO L226 Difference]: Without dead ends: 6879 [2020-09-25 13:26:28,622 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 [2020-09-25 13:26:28,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6879 states. [2020-09-25 13:26:28,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6879 to 5008. [2020-09-25 13:26:28,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5008 states. [2020-09-25 13:26:28,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5008 states to 5008 states and 6147 transitions. [2020-09-25 13:26:28,741 INFO L78 Accepts]: Start accepts. Automaton has 5008 states and 6147 transitions. Word has length 277 [2020-09-25 13:26:28,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:28,741 INFO L479 AbstractCegarLoop]: Abstraction has 5008 states and 6147 transitions. [2020-09-25 13:26:28,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:26:28,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5008 states and 6147 transitions. [2020-09-25 13:26:28,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-09-25 13:26:28,755 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:28,755 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:28,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 13:26:28,756 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:28,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:28,756 INFO L82 PathProgramCache]: Analyzing trace with hash 875870054, now seen corresponding path program 1 times [2020-09-25 13:26:28,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:28,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533229833] [2020-09-25 13:26:28,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:28,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:28,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:29,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:29,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-09-25 13:26:29,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:26:29,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-09-25 13:26:29,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:29,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:26:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 237 [2020-09-25 13:26:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 13:26:29,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:26:29,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:26:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:26:29,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:26:29,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:26:29,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:26:29,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:26:29,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:26:29,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:26:29,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:26:29,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:26:29,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:26:29,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:26:29,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:26:29,165 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-25 13:26:29,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533229833] [2020-09-25 13:26:29,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:26:29,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:26:29,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409303203] [2020-09-25 13:26:29,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:26:29,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:26:29,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:26:29,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:29,168 INFO L87 Difference]: Start difference. First operand 5008 states and 6147 transitions. Second operand 3 states. [2020-09-25 13:26:29,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:26:29,298 INFO L93 Difference]: Finished difference Result 9831 states and 12121 transitions. [2020-09-25 13:26:29,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:26:29,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 279 [2020-09-25 13:26:29,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:26:29,316 INFO L225 Difference]: With dead ends: 9831 [2020-09-25 13:26:29,317 INFO L226 Difference]: Without dead ends: 6208 [2020-09-25 13:26:29,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:26:29,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6208 states. [2020-09-25 13:26:29,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6208 to 6208. [2020-09-25 13:26:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6208 states. [2020-09-25 13:26:29,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6208 states to 6208 states and 7634 transitions. [2020-09-25 13:26:29,490 INFO L78 Accepts]: Start accepts. Automaton has 6208 states and 7634 transitions. Word has length 279 [2020-09-25 13:26:29,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:26:29,491 INFO L479 AbstractCegarLoop]: Abstraction has 6208 states and 7634 transitions. [2020-09-25 13:26:29,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:26:29,492 INFO L276 IsEmpty]: Start isEmpty. Operand 6208 states and 7634 transitions. [2020-09-25 13:26:29,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-25 13:26:29,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:26:29,511 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:26:29,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 13:26:29,512 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:26:29,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:26:29,513 INFO L82 PathProgramCache]: Analyzing trace with hash -802173269, now seen corresponding path program 1 times [2020-09-25 13:26:29,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:26:29,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982395191] [2020-09-25 13:26:29,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:26:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:26:29,561 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:26:29,561 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:26:29,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 13:26:29,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:26:29 BoogieIcfgContainer [2020-09-25 13:26:29,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:26:29,612 INFO L168 Benchmark]: Toolchain (without parser) took 34928.60 ms. Allocated memory was 147.8 MB in the beginning and 633.3 MB in the end (delta: 485.5 MB). Free memory was 103.3 MB in the beginning and 125.4 MB in the end (delta: -22.1 MB). Peak memory consumption was 463.4 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:29,613 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:26:29,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.98 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.6 MB in the beginning and 179.3 MB in the end (delta: -76.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:29,614 INFO L168 Benchmark]: Boogie Preprocessor took 70.68 ms. Allocated memory is still 204.5 MB. Free memory was 179.3 MB in the beginning and 177.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:29,614 INFO L168 Benchmark]: RCFGBuilder took 955.33 ms. Allocated memory is still 204.5 MB. Free memory was 176.7 MB in the beginning and 112.7 MB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:29,615 INFO L168 Benchmark]: TraceAbstraction took 33284.28 ms. Allocated memory was 204.5 MB in the beginning and 633.3 MB in the end (delta: 428.9 MB). Free memory was 112.1 MB in the beginning and 125.4 MB in the end (delta: -13.3 MB). Peak memory consumption was 415.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:26:29,618 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 609.98 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.6 MB in the beginning and 179.3 MB in the end (delta: -76.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.68 ms. Allocated memory is still 204.5 MB. Free memory was 179.3 MB in the beginning and 177.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 955.33 ms. Allocated memory is still 204.5 MB. Free memory was 176.7 MB in the beginning and 112.7 MB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33284.28 ms. Allocated memory was 204.5 MB in the beginning and 633.3 MB in the end (delta: 428.9 MB). Free memory was 112.1 MB in the beginning and 125.4 MB in the end (delta: -13.3 MB). Peak memory consumption was 415.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L553] int s ; [L557] s = 12292 [L558] CALL ssl3_connect(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags = __VERIFIER_nondet_int() ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 = __VERIFIER_nondet_int() ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L73] long __cil_tmp65 ; [L77] s__state = initial_state [L78] blastFlag = 0 [L79] tmp = __VERIFIER_nondet_int() [L80] cb = 0 [L81] ret = -1 [L82] skip = 0 [L83] tmp___0 = 0 [L84] COND TRUE s__info_callback != 0 [L85] cb = s__info_callback [L91] s__in_handshake ++ [L92] COND FALSE !(tmp___1 + 12288) [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L203] s__new_session = 1 [L204] s__state = 4096 [L205] s__ctx__stats__sess_connect_renegotiate ++ [L210] s__server = 0 [L211] COND TRUE cb != 0 [L215] __cil_tmp55 = s__version + 65280 [L216] COND FALSE !(__cil_tmp55 != 768) [L221] s__type = 4096 [L222] COND FALSE !(s__init_buf___0 == 0) [L234] COND FALSE !(! tmp___4) [L238] COND FALSE !(! tmp___5) [L242] s__state = 4368 [L243] s__ctx__stats__sess_connect ++ [L244] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L248] s__shutdown = 0 [L249] ret = __VERIFIER_nondet_int() [L250] COND TRUE blastFlag == 0 [L251] blastFlag = 1 [L253] COND FALSE !(ret <= 0) [L256] s__state = 4384 [L257] s__init_num = 0 [L258] COND TRUE s__bbio != s__wbio [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L264] ret = __VERIFIER_nondet_int() [L265] COND TRUE blastFlag == 1 [L266] blastFlag = 2 [L268] COND FALSE !(ret <= 0) [L271] COND FALSE !(\read(s__hit)) [L274] s__state = 4400 [L276] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L281] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L282] COND FALSE !(__cil_tmp56 + 256UL) [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 2 [L287] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 391 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.1s, OverallIterations: 14, TraceHistogramMax: 6, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5687 SDtfs, 3802 SDslu, 5984 SDs, 0 SdLazy, 713 SolverSat, 147 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6208occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 2092 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 27.8s InterpolantComputationTime, 3463 NumberOfCodeBlocks, 3463 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3170 ConstructedInterpolants, 0 QuantifiedInterpolants, 1197567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 875/889 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...