/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:22:13,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:22:13,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:22:13,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:22:13,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:22:13,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:22:13,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:22:13,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:22:13,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:22:13,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:22:13,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:22:13,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:22:13,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:22:13,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:22:13,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:22:13,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:22:13,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:22:13,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:22:13,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:22:13,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:22:13,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:22:13,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:22:13,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:22:13,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:22:13,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:22:13,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:22:13,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:22:13,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:22:13,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:22:13,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:22:13,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:22:13,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:22:13,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:22:13,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:22:13,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:22:13,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:22:13,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:22:13,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:22:13,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:22:13,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:22:13,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:22:13,478 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:22:13,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:22:13,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:22:13,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:22:13,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:22:13,507 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:22:13,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:22:13,507 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:22:13,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:22:13,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:22:13,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:22:13,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:22:13,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:22:13,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:22:13,509 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:22:13,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:22:13,509 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:22:13,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:22:13,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:22:13,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:22:13,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:22:13,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:22:13,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:22:13,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:22:13,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:22:13,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:22:13,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:22:13,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:22:13,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:22:13,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:22:13,512 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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:22:13,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:22:14,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:22:14,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:22:14,013 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:22:14,015 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:22:14,016 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-24 19:22:14,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70d99d72d/f2ff19f195a844e6bc157efdc101d86b/FLAGa5e6742bc [2020-09-24 19:22:14,736 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:22:14,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-24 19:22:14,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70d99d72d/f2ff19f195a844e6bc157efdc101d86b/FLAGa5e6742bc [2020-09-24 19:22:15,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70d99d72d/f2ff19f195a844e6bc157efdc101d86b [2020-09-24 19:22:15,032 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:22:15,041 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:22:15,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:22:15,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:22:15,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:22:15,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:22:15" (1/1) ... [2020-09-24 19:22:15,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559d5a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:15, skipping insertion in model container [2020-09-24 19:22:15,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:22:15" (1/1) ... [2020-09-24 19:22:15,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:22:15,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:22:15,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:22:15,474 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:22:15,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:22:15,660 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:22:15,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:15 WrapperNode [2020-09-24 19:22:15,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:22:15,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:22:15,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:22:15,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:22:15,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:15" (1/1) ... [2020-09-24 19:22:15,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:15" (1/1) ... [2020-09-24 19:22:15,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:15" (1/1) ... [2020-09-24 19:22:15,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:15" (1/1) ... [2020-09-24 19:22:15,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:15" (1/1) ... [2020-09-24 19:22:15,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:15" (1/1) ... [2020-09-24 19:22:15,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:15" (1/1) ... [2020-09-24 19:22:15,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:22:15,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:22:15,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:22:15,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:22:15,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:22:15,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:22:15,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:22:15,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-24 19:22:15,810 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:22:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:22:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 19:22:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:22:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 19:22:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-24 19:22:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:22:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:22:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:22:16,009 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 19:22:16,689 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-24 19:22:16,690 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-24 19:22:16,718 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:22:16,718 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 19:22:16,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:22:16 BoogieIcfgContainer [2020-09-24 19:22:16,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:22:16,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:22:16,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:22:16,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:22:16,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:22:15" (1/3) ... [2020-09-24 19:22:16,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a9071b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:22:16, skipping insertion in model container [2020-09-24 19:22:16,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:22:15" (2/3) ... [2020-09-24 19:22:16,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a9071b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:22:16, skipping insertion in model container [2020-09-24 19:22:16,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:22:16" (3/3) ... [2020-09-24 19:22:16,737 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2020-09-24 19:22:16,749 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:22:16,760 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:22:16,785 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:22:16,822 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:22:16,822 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:22:16,823 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:22:16,823 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:22:16,823 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:22:16,823 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:22:16,823 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:22:16,824 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:22:16,857 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states. [2020-09-24 19:22:16,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 19:22:16,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:16,878 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] [2020-09-24 19:22:16,879 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:16,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:16,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1739904560, now seen corresponding path program 1 times [2020-09-24 19:22:16,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:16,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193284848] [2020-09-24 19:22:16,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:17,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:17,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:17,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:18,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:18,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-24 19:22:18,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:22:18,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:22:18,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:18,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:18,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-24 19:22:18,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 19:22:18,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 19:22:18,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:18,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:18,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:18,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:18,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:18,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:22:18,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:18,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:18,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:18,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:18,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:18,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:18,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193284848] [2020-09-24 19:22:18,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:18,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:18,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171078018] [2020-09-24 19:22:18,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:18,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:18,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:18,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:18,362 INFO L87 Difference]: Start difference. First operand 391 states. Second operand 3 states. [2020-09-24 19:22:18,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:18,542 INFO L93 Difference]: Finished difference Result 859 states and 1116 transitions. [2020-09-24 19:22:18,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:18,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-09-24 19:22:18,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:18,575 INFO L225 Difference]: With dead ends: 859 [2020-09-24 19:22:18,576 INFO L226 Difference]: Without dead ends: 542 [2020-09-24 19:22:18,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:18,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-09-24 19:22:18,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 542. [2020-09-24 19:22:18,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-09-24 19:22:18,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 648 transitions. [2020-09-24 19:22:18,685 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 648 transitions. Word has length 167 [2020-09-24 19:22:18,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:18,687 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 648 transitions. [2020-09-24 19:22:18,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 648 transitions. [2020-09-24 19:22:18,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 19:22:18,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:18,692 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:18,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:22:18,693 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:18,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:18,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1853292792, now seen corresponding path program 1 times [2020-09-24 19:22:18,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:18,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1904357485] [2020-09-24 19:22:18,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:18,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:18,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:19,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:19,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:19,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:19,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:19,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 19:22:19,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:22:19,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:22:19,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:19,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:19,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 19:22:19,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:22:19,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:19,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:19,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:19,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:19,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:19,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:19,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:19,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:19,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:19,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:19,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:19,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:19,844 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:19,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1904357485] [2020-09-24 19:22:19,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:19,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:19,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530347959] [2020-09-24 19:22:19,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:19,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:19,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:19,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:19,860 INFO L87 Difference]: Start difference. First operand 542 states and 648 transitions. Second operand 3 states. [2020-09-24 19:22:20,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:20,086 INFO L93 Difference]: Finished difference Result 996 states and 1233 transitions. [2020-09-24 19:22:20,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:20,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-09-24 19:22:20,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:20,097 INFO L225 Difference]: With dead ends: 996 [2020-09-24 19:22:20,097 INFO L226 Difference]: Without dead ends: 603 [2020-09-24 19:22:20,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:20,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-09-24 19:22:20,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 582. [2020-09-24 19:22:20,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2020-09-24 19:22:20,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 698 transitions. [2020-09-24 19:22:20,168 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 698 transitions. Word has length 187 [2020-09-24 19:22:20,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:20,169 INFO L479 AbstractCegarLoop]: Abstraction has 582 states and 698 transitions. [2020-09-24 19:22:20,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:20,169 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 698 transitions. [2020-09-24 19:22:20,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 19:22:20,175 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:20,179 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:20,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:22:20,179 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:20,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:20,180 INFO L82 PathProgramCache]: Analyzing trace with hash 713654205, now seen corresponding path program 1 times [2020-09-24 19:22:20,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:20,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274652130] [2020-09-24 19:22:20,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:20,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:20,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:20,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:20,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:21,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:21,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-09-24 19:22:21,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:22:21,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-24 19:22:21,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:21,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:21,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-24 19:22:21,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 19:22:21,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:21,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:21,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:21,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:21,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:21,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:21,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:21,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:21,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:21,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:21,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:21,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:21,309 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:22:21,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274652130] [2020-09-24 19:22:21,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:21,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:21,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852719073] [2020-09-24 19:22:21,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:21,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:21,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:21,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:21,315 INFO L87 Difference]: Start difference. First operand 582 states and 698 transitions. Second operand 3 states. [2020-09-24 19:22:21,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:21,414 INFO L93 Difference]: Finished difference Result 1015 states and 1248 transitions. [2020-09-24 19:22:21,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:21,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2020-09-24 19:22:21,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:21,422 INFO L225 Difference]: With dead ends: 1015 [2020-09-24 19:22:21,422 INFO L226 Difference]: Without dead ends: 795 [2020-09-24 19:22:21,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:21,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2020-09-24 19:22:21,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 795. [2020-09-24 19:22:21,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2020-09-24 19:22:21,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 966 transitions. [2020-09-24 19:22:21,460 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 966 transitions. Word has length 194 [2020-09-24 19:22:21,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:21,462 INFO L479 AbstractCegarLoop]: Abstraction has 795 states and 966 transitions. [2020-09-24 19:22:21,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:21,463 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 966 transitions. [2020-09-24 19:22:21,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 19:22:21,467 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:21,468 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:21,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:22:21,468 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:21,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:21,469 INFO L82 PathProgramCache]: Analyzing trace with hash -2121553579, now seen corresponding path program 1 times [2020-09-24 19:22:21,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:21,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470626919] [2020-09-24 19:22:21,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:21,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:21,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:21,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:21,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:22,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:22,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-24 19:22:22,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:22:22,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-24 19:22:22,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:22,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:22,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 19:22:22,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 19:22:22,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:22,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:22,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:22,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:22,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:22,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:22,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:22:22,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:22,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 19:22:22,637 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 19:22:22,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470626919] [2020-09-24 19:22:22,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:22,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:22,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411697802] [2020-09-24 19:22:22,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:22,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:22,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:22,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:22,652 INFO L87 Difference]: Start difference. First operand 795 states and 966 transitions. Second operand 3 states. [2020-09-24 19:22:22,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:22,985 INFO L93 Difference]: Finished difference Result 1627 states and 2079 transitions. [2020-09-24 19:22:22,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:22,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2020-09-24 19:22:22,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:22,992 INFO L225 Difference]: With dead ends: 1627 [2020-09-24 19:22:22,993 INFO L226 Difference]: Without dead ends: 978 [2020-09-24 19:22:22,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:22,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2020-09-24 19:22:23,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 927. [2020-09-24 19:22:23,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-09-24 19:22:23,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1125 transitions. [2020-09-24 19:22:23,024 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1125 transitions. Word has length 208 [2020-09-24 19:22:23,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:23,025 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1125 transitions. [2020-09-24 19:22:23,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:23,025 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1125 transitions. [2020-09-24 19:22:23,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 19:22:23,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:23,030 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:23,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:22:23,030 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:23,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:23,031 INFO L82 PathProgramCache]: Analyzing trace with hash 329812405, now seen corresponding path program 1 times [2020-09-24 19:22:23,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:23,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2089130217] [2020-09-24 19:22:23,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:23,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:23,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:23,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:23,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:23,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:24,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:24,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-24 19:22:24,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:22:24,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:22:24,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:24,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:24,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 19:22:24,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 19:22:24,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:24,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:24,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:24,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:24,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:24,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:24,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:24,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:24,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:24,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:24,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:24,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 19:22:24,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2089130217] [2020-09-24 19:22:24,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:24,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:24,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946387929] [2020-09-24 19:22:24,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:24,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:24,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:24,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:24,175 INFO L87 Difference]: Start difference. First operand 927 states and 1125 transitions. Second operand 3 states. [2020-09-24 19:22:24,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:24,335 INFO L93 Difference]: Finished difference Result 1809 states and 2251 transitions. [2020-09-24 19:22:24,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:24,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2020-09-24 19:22:24,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:24,342 INFO L225 Difference]: With dead ends: 1809 [2020-09-24 19:22:24,342 INFO L226 Difference]: Without dead ends: 1031 [2020-09-24 19:22:24,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:24,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2020-09-24 19:22:24,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 993. [2020-09-24 19:22:24,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 993 states. [2020-09-24 19:22:24,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1206 transitions. [2020-09-24 19:22:24,372 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1206 transitions. Word has length 208 [2020-09-24 19:22:24,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:24,372 INFO L479 AbstractCegarLoop]: Abstraction has 993 states and 1206 transitions. [2020-09-24 19:22:24,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:24,372 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1206 transitions. [2020-09-24 19:22:24,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-09-24 19:22:24,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:24,380 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-09-24 19:22:24,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:22:24,381 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:24,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:24,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1154145088, now seen corresponding path program 1 times [2020-09-24 19:22:24,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:24,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161702142] [2020-09-24 19:22:24,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:24,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:24,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:24,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:25,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:25,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:25,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:25,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-09-24 19:22:25,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:22:25,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:22:25,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:25,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:25,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-24 19:22:25,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 19:22:25,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:25,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:25,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:25,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:25,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:25,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:25,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:25,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:25,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:25,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 19:22:25,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161702142] [2020-09-24 19:22:25,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:25,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:25,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707101572] [2020-09-24 19:22:25,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:25,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:25,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:25,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:25,574 INFO L87 Difference]: Start difference. First operand 993 states and 1206 transitions. Second operand 3 states. [2020-09-24 19:22:25,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:25,711 INFO L93 Difference]: Finished difference Result 1837 states and 2264 transitions. [2020-09-24 19:22:25,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:25,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2020-09-24 19:22:25,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:25,722 INFO L225 Difference]: With dead ends: 1837 [2020-09-24 19:22:25,722 INFO L226 Difference]: Without dead ends: 1272 [2020-09-24 19:22:25,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:25,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2020-09-24 19:22:25,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1272. [2020-09-24 19:22:25,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1272 states. [2020-09-24 19:22:25,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1555 transitions. [2020-09-24 19:22:25,778 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1555 transitions. Word has length 215 [2020-09-24 19:22:25,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:25,779 INFO L479 AbstractCegarLoop]: Abstraction has 1272 states and 1555 transitions. [2020-09-24 19:22:25,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:25,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1555 transitions. [2020-09-24 19:22:25,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-24 19:22:25,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:25,790 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:25,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:22:25,791 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:25,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:25,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1696888159, now seen corresponding path program 1 times [2020-09-24 19:22:25,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:25,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650549196] [2020-09-24 19:22:25,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:25,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:25,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:26,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:26,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:26,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:26,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:26,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-24 19:22:26,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:22:26,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:22:26,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:26,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:26,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-09-24 19:22:26,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:22:26,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:26,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:26,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:26,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:26,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:26,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:26,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:22:26,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:26,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:26,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:22:26,958 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-24 19:22:26,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650549196] [2020-09-24 19:22:26,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:26,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:26,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351045951] [2020-09-24 19:22:26,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:26,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:26,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:26,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:26,961 INFO L87 Difference]: Start difference. First operand 1272 states and 1555 transitions. Second operand 3 states. [2020-09-24 19:22:27,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:27,134 INFO L93 Difference]: Finished difference Result 2524 states and 3155 transitions. [2020-09-24 19:22:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:27,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-09-24 19:22:27,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:27,143 INFO L225 Difference]: With dead ends: 2524 [2020-09-24 19:22:27,143 INFO L226 Difference]: Without dead ends: 1401 [2020-09-24 19:22:27,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:27,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2020-09-24 19:22:27,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1368. [2020-09-24 19:22:27,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1368 states. [2020-09-24 19:22:27,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1671 transitions. [2020-09-24 19:22:27,186 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1671 transitions. Word has length 232 [2020-09-24 19:22:27,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:27,187 INFO L479 AbstractCegarLoop]: Abstraction has 1368 states and 1671 transitions. [2020-09-24 19:22:27,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:27,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1671 transitions. [2020-09-24 19:22:27,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-24 19:22:27,194 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:27,194 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-09-24 19:22:27,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:22:27,195 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:27,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:27,195 INFO L82 PathProgramCache]: Analyzing trace with hash 441415156, now seen corresponding path program 1 times [2020-09-24 19:22:27,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:27,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038511631] [2020-09-24 19:22:27,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:27,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:27,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:27,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:27,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:28,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:28,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-24 19:22:28,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:22:28,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-09-24 19:22:28,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-09-24 19:22:28,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 19:22:28,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:28,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:28,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:28,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:28,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:28,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:28,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:28,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:28,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:28,344 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-24 19:22:28,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038511631] [2020-09-24 19:22:28,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:28,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:28,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311979442] [2020-09-24 19:22:28,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:28,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:28,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:28,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:28,346 INFO L87 Difference]: Start difference. First operand 1368 states and 1671 transitions. Second operand 3 states. [2020-09-24 19:22:28,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:28,390 INFO L93 Difference]: Finished difference Result 3634 states and 4455 transitions. [2020-09-24 19:22:28,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:28,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-09-24 19:22:28,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:28,404 INFO L225 Difference]: With dead ends: 3634 [2020-09-24 19:22:28,404 INFO L226 Difference]: Without dead ends: 2415 [2020-09-24 19:22:28,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:28,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2020-09-24 19:22:28,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2413. [2020-09-24 19:22:28,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2413 states. [2020-09-24 19:22:28,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 2916 transitions. [2020-09-24 19:22:28,483 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 2916 transitions. Word has length 239 [2020-09-24 19:22:28,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:28,484 INFO L479 AbstractCegarLoop]: Abstraction has 2413 states and 2916 transitions. [2020-09-24 19:22:28,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:28,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 2916 transitions. [2020-09-24 19:22:28,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-09-24 19:22:28,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:28,491 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2020-09-24 19:22:28,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:22:28,492 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:28,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:28,492 INFO L82 PathProgramCache]: Analyzing trace with hash -2011889646, now seen corresponding path program 1 times [2020-09-24 19:22:28,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:28,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74445808] [2020-09-24 19:22:28,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:28,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:28,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:28,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:28,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:29,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:29,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-24 19:22:29,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:22:29,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:22:29,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:29,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:29,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-24 19:22:29,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 19:22:29,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:29,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:29,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:29,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:29,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:29,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:29,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:29,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:29,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:29,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:29,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:29,601 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-09-24 19:22:29,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74445808] [2020-09-24 19:22:29,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:29,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:29,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803800015] [2020-09-24 19:22:29,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:29,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:29,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:29,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:29,609 INFO L87 Difference]: Start difference. First operand 2413 states and 2916 transitions. Second operand 3 states. [2020-09-24 19:22:29,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:29,692 INFO L93 Difference]: Finished difference Result 4713 states and 5723 transitions. [2020-09-24 19:22:29,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:29,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-09-24 19:22:29,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:29,709 INFO L225 Difference]: With dead ends: 4713 [2020-09-24 19:22:29,709 INFO L226 Difference]: Without dead ends: 2449 [2020-09-24 19:22:29,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:29,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2449 states. [2020-09-24 19:22:29,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2449 to 2429. [2020-09-24 19:22:29,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2429 states. [2020-09-24 19:22:29,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 2920 transitions. [2020-09-24 19:22:29,829 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 2920 transitions. Word has length 241 [2020-09-24 19:22:29,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:29,830 INFO L479 AbstractCegarLoop]: Abstraction has 2429 states and 2920 transitions. [2020-09-24 19:22:29,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:29,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 2920 transitions. [2020-09-24 19:22:29,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-24 19:22:29,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:29,844 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2020-09-24 19:22:29,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 19:22:29,844 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:29,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:29,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1517134286, now seen corresponding path program 1 times [2020-09-24 19:22:29,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:29,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202118383] [2020-09-24 19:22:29,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:29,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:29,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:30,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:30,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:30,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:30,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:30,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-24 19:22:30,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:22:30,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-24 19:22:30,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-09-24 19:22:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:22:30,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:30,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:30,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:30,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:30,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:30,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:30,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:22:30,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:30,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:30,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:30,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:30,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 19:22:31,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202118383] [2020-09-24 19:22:31,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:31,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:31,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625510933] [2020-09-24 19:22:31,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:31,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:31,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:31,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:31,043 INFO L87 Difference]: Start difference. First operand 2429 states and 2920 transitions. Second operand 3 states. [2020-09-24 19:22:31,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:31,129 INFO L93 Difference]: Finished difference Result 6962 states and 8409 transitions. [2020-09-24 19:22:31,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:31,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2020-09-24 19:22:31,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:31,154 INFO L225 Difference]: With dead ends: 6962 [2020-09-24 19:22:31,155 INFO L226 Difference]: Without dead ends: 4682 [2020-09-24 19:22:31,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:31,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4682 states. [2020-09-24 19:22:31,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4682 to 4680. [2020-09-24 19:22:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4680 states. [2020-09-24 19:22:31,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4680 states to 4680 states and 5613 transitions. [2020-09-24 19:22:31,301 INFO L78 Accepts]: Start accepts. Automaton has 4680 states and 5613 transitions. Word has length 245 [2020-09-24 19:22:31,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:31,301 INFO L479 AbstractCegarLoop]: Abstraction has 4680 states and 5613 transitions. [2020-09-24 19:22:31,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 4680 states and 5613 transitions. [2020-09-24 19:22:31,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-09-24 19:22:31,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:31,314 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-24 19:22:31,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 19:22:31,315 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:31,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:31,315 INFO L82 PathProgramCache]: Analyzing trace with hash -554417548, now seen corresponding path program 1 times [2020-09-24 19:22:31,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:31,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633393529] [2020-09-24 19:22:31,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:31,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:31,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:31,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:31,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:31,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:31,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:31,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:32,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:32,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-24 19:22:32,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:22:32,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-24 19:22:32,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:32,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:22:32,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-24 19:22:32,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:22:32,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:32,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:32,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:32,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:32,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:32,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:32,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:32,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:32,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:32,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:32,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:32,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:22:32,491 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-24 19:22:32,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633393529] [2020-09-24 19:22:32,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:32,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:22:32,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151147921] [2020-09-24 19:22:32,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:22:32,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:32,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:22:32,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:32,493 INFO L87 Difference]: Start difference. First operand 4680 states and 5613 transitions. Second operand 3 states. [2020-09-24 19:22:32,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:32,618 INFO L93 Difference]: Finished difference Result 9206 states and 11086 transitions. [2020-09-24 19:22:32,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:22:32,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2020-09-24 19:22:32,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:32,646 INFO L225 Difference]: With dead ends: 9206 [2020-09-24 19:22:32,646 INFO L226 Difference]: Without dead ends: 5806 [2020-09-24 19:22:32,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:22:32,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5806 states. [2020-09-24 19:22:32,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5806 to 5806. [2020-09-24 19:22:32,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5806 states. [2020-09-24 19:22:32,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5806 states to 5806 states and 6975 transitions. [2020-09-24 19:22:32,831 INFO L78 Accepts]: Start accepts. Automaton has 5806 states and 6975 transitions. Word has length 247 [2020-09-24 19:22:32,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:32,832 INFO L479 AbstractCegarLoop]: Abstraction has 5806 states and 6975 transitions. [2020-09-24 19:22:32,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:22:32,833 INFO L276 IsEmpty]: Start isEmpty. Operand 5806 states and 6975 transitions. [2020-09-24 19:22:32,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-24 19:22:32,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:32,855 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:32,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 19:22:32,856 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:32,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:32,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1870764962, now seen corresponding path program 1 times [2020-09-24 19:22:32,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:32,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179094686] [2020-09-24 19:22:32,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:32,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:33,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:33,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:33,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 19:22:33,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:22:33,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 542 [2020-09-24 19:22:33,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:33,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:22:33,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 19:22:33,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-24 19:22:33,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:33,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:33,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:33,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:33,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:33,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:33,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:33,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:33,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:33,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:33,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:33,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-24 19:22:33,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179094686] [2020-09-24 19:22:33,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:33,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:22:33,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90945660] [2020-09-24 19:22:33,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:22:33,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:33,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:22:33,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:22:33,622 INFO L87 Difference]: Start difference. First operand 5806 states and 6975 transitions. Second operand 6 states. [2020-09-24 19:22:34,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:34,022 INFO L93 Difference]: Finished difference Result 11887 states and 14389 transitions. [2020-09-24 19:22:34,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:22:34,023 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 257 [2020-09-24 19:22:34,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:34,086 INFO L225 Difference]: With dead ends: 11887 [2020-09-24 19:22:34,086 INFO L226 Difference]: Without dead ends: 6235 [2020-09-24 19:22:34,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:22:34,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6235 states. [2020-09-24 19:22:34,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6235 to 6081. [2020-09-24 19:22:34,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6081 states. [2020-09-24 19:22:34,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6081 states to 6081 states and 7380 transitions. [2020-09-24 19:22:34,381 INFO L78 Accepts]: Start accepts. Automaton has 6081 states and 7380 transitions. Word has length 257 [2020-09-24 19:22:34,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:34,381 INFO L479 AbstractCegarLoop]: Abstraction has 6081 states and 7380 transitions. [2020-09-24 19:22:34,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:22:34,382 INFO L276 IsEmpty]: Start isEmpty. Operand 6081 states and 7380 transitions. [2020-09-24 19:22:34,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-09-24 19:22:34,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:34,395 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:22:34,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 19:22:34,399 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:34,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:34,399 INFO L82 PathProgramCache]: Analyzing trace with hash -225222432, now seen corresponding path program 1 times [2020-09-24 19:22:34,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:34,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518943701] [2020-09-24 19:22:34,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:34,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:34,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:35,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:35,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-24 19:22:35,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:22:35,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 969 [2020-09-24 19:22:35,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:22:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 19:22:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-24 19:22:35,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:35,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:35,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:35,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:35,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:35,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:35,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:35,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:35,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:35,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:35,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:35,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-24 19:22:35,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518943701] [2020-09-24 19:22:35,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:35,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:22:35,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673108090] [2020-09-24 19:22:35,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:22:35,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:35,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:22:35,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:22:35,575 INFO L87 Difference]: Start difference. First operand 6081 states and 7380 transitions. Second operand 6 states. [2020-09-24 19:22:35,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:35,943 INFO L93 Difference]: Finished difference Result 12376 states and 15058 transitions. [2020-09-24 19:22:35,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:22:35,943 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 258 [2020-09-24 19:22:35,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:35,959 INFO L225 Difference]: With dead ends: 12376 [2020-09-24 19:22:35,959 INFO L226 Difference]: Without dead ends: 6393 [2020-09-24 19:22:35,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:22:35,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6393 states. [2020-09-24 19:22:36,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6393 to 6093. [2020-09-24 19:22:36,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6093 states. [2020-09-24 19:22:36,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6093 states to 6093 states and 7396 transitions. [2020-09-24 19:22:36,138 INFO L78 Accepts]: Start accepts. Automaton has 6093 states and 7396 transitions. Word has length 258 [2020-09-24 19:22:36,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:36,139 INFO L479 AbstractCegarLoop]: Abstraction has 6093 states and 7396 transitions. [2020-09-24 19:22:36,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:22:36,139 INFO L276 IsEmpty]: Start isEmpty. Operand 6093 states and 7396 transitions. [2020-09-24 19:22:36,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-09-24 19:22:36,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:36,152 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2020-09-24 19:22:36,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 19:22:36,153 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:36,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:36,153 INFO L82 PathProgramCache]: Analyzing trace with hash 488549191, now seen corresponding path program 1 times [2020-09-24 19:22:36,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:36,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16516953] [2020-09-24 19:22:36,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:36,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:36,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:37,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:37,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-09-24 19:22:37,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:22:37,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 914 [2020-09-24 19:22:37,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:37,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:22:37,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 19:22:37,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-24 19:22:37,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:37,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:22:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:22:37,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:22:37,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:22:37,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:22:37,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:22:37,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:22:37,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:22:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:22:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:22:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:22:37,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:22:37,335 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-09-24 19:22:37,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16516953] [2020-09-24 19:22:37,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:22:37,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:22:37,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062909298] [2020-09-24 19:22:37,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:22:37,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:22:37,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:22:37,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:22:37,338 INFO L87 Difference]: Start difference. First operand 6093 states and 7396 transitions. Second operand 6 states. [2020-09-24 19:22:37,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:22:37,611 INFO L93 Difference]: Finished difference Result 12020 states and 14616 transitions. [2020-09-24 19:22:37,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:22:37,612 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 276 [2020-09-24 19:22:37,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:22:37,624 INFO L225 Difference]: With dead ends: 12020 [2020-09-24 19:22:37,625 INFO L226 Difference]: Without dead ends: 6087 [2020-09-24 19:22:37,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:22:37,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6087 states. [2020-09-24 19:22:37,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6087 to 6087. [2020-09-24 19:22:37,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6087 states. [2020-09-24 19:22:37,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6087 states to 6087 states and 7386 transitions. [2020-09-24 19:22:37,787 INFO L78 Accepts]: Start accepts. Automaton has 6087 states and 7386 transitions. Word has length 276 [2020-09-24 19:22:37,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:22:37,787 INFO L479 AbstractCegarLoop]: Abstraction has 6087 states and 7386 transitions. [2020-09-24 19:22:37,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:22:37,788 INFO L276 IsEmpty]: Start isEmpty. Operand 6087 states and 7386 transitions. [2020-09-24 19:22:37,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-24 19:22:37,802 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:22:37,803 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] [2020-09-24 19:22:37,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 19:22:37,803 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:22:37,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:22:37,804 INFO L82 PathProgramCache]: Analyzing trace with hash -802173269, now seen corresponding path program 1 times [2020-09-24 19:22:37,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:22:37,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107520057] [2020-09-24 19:22:37,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:22:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:22:37,848 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:22:37,848 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:22:37,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 19:22:37,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:22:37 BoogieIcfgContainer [2020-09-24 19:22:37,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:22:37,917 INFO L168 Benchmark]: Toolchain (without parser) took 22881.64 ms. Allocated memory was 138.4 MB in the beginning and 594.0 MB in the end (delta: 455.6 MB). Free memory was 101.0 MB in the beginning and 135.3 MB in the end (delta: -34.3 MB). Peak memory consumption was 421.3 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:37,918 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 19:22:37,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.74 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 176.2 MB in the end (delta: -75.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:37,921 INFO L168 Benchmark]: Boogie Preprocessor took 63.11 ms. Allocated memory is still 201.3 MB. Free memory was 176.2 MB in the beginning and 173.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:37,926 INFO L168 Benchmark]: RCFGBuilder took 1001.60 ms. Allocated memory is still 201.3 MB. Free memory was 173.5 MB in the beginning and 108.5 MB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:37,927 INFO L168 Benchmark]: TraceAbstraction took 21185.37 ms. Allocated memory was 201.3 MB in the beginning and 594.0 MB in the end (delta: 392.7 MB). Free memory was 108.5 MB in the beginning and 135.3 MB in the end (delta: -26.8 MB). Peak memory consumption was 365.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:22:37,934 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 616.74 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 176.2 MB in the end (delta: -75.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.11 ms. Allocated memory is still 201.3 MB. Free memory was 176.2 MB in the beginning and 173.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1001.60 ms. Allocated memory is still 201.3 MB. Free memory was 173.5 MB in the beginning and 108.5 MB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21185.37 ms. Allocated memory was 201.3 MB in the beginning and 594.0 MB in the end (delta: 392.7 MB). Free memory was 108.5 MB in the beginning and 135.3 MB in the end (delta: -26.8 MB). Peak memory consumption was 365.9 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: 21.0s, OverallIterations: 15, TraceHistogramMax: 6, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6168 SDtfs, 4245 SDslu, 5617 SDs, 0 SdLazy, 958 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6093occurred 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: 1.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 621 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 14.5s InterpolantComputationTime, 3454 NumberOfCodeBlocks, 3454 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 3160 ConstructedInterpolants, 0 QuantifiedInterpolants, 1145340 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 802/802 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...