/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 interpolation-heuristic=FIRST --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 16:00:06,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:00:06,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:00:06,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:00:06,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:00:06,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:00:06,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:00:06,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:00:06,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:00:06,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:00:06,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:00:06,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:00:06,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:00:06,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:00:06,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:00:06,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:00:06,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:00:06,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:00:06,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:00:06,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:00:06,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:00:06,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:00:06,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:00:06,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:00:06,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:00:06,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:00:06,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:00:06,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:00:06,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:00:06,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:00:06,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:00:06,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:00:06,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:00:06,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:00:06,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:00:06,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:00:06,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:00:06,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:00:06,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:00:06,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:00:06,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:00:06,485 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 16:00:06,524 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:00:06,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:00:06,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:00:06,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:00:06,526 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:00:06,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:00:06,527 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:00:06,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:00:06,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:00:06,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:00:06,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:00:06,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:00:06,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:00:06,530 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:00:06,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:00:06,530 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:00:06,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:00:06,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:00:06,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:00:06,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:00:06,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:00:06,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:00:06,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:00:06,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:00:06,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:00:06,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:00:06,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:00:06,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:00:06,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:00:06,533 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:00:06,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:00:06,991 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:00:06,995 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:00:06,997 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:00:06,998 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:00:07,000 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-24 16:00:07,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c395cf6fd/6b191a2597f74a869ebb975a13dea631/FLAG9f8676b66 [2020-09-24 16:00:07,665 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:00:07,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-24 16:00:07,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c395cf6fd/6b191a2597f74a869ebb975a13dea631/FLAG9f8676b66 [2020-09-24 16:00:07,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c395cf6fd/6b191a2597f74a869ebb975a13dea631 [2020-09-24 16:00:07,964 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:00:07,968 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:00:07,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:00:07,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:00:07,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:00:07,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:00:07" (1/1) ... [2020-09-24 16:00:07,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7105da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:07, skipping insertion in model container [2020-09-24 16:00:07,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:00:07" (1/1) ... [2020-09-24 16:00:07,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:00:08,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:00:08,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:00:08,337 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:00:08,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:00:08,510 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:00:08,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:08 WrapperNode [2020-09-24 16:00:08,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:00:08,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:00:08,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:00:08,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:00:08,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:08" (1/1) ... [2020-09-24 16:00:08,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:08" (1/1) ... [2020-09-24 16:00:08,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:08" (1/1) ... [2020-09-24 16:00:08,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:08" (1/1) ... [2020-09-24 16:00:08,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:08" (1/1) ... [2020-09-24 16:00:08,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:08" (1/1) ... [2020-09-24 16:00:08,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:08" (1/1) ... [2020-09-24 16:00:08,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:00:08,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:00:08,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:00:08,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:00:08,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:08" (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 16:00:08,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:00:08,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:00:08,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-24 16:00:08,650 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:00:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:00:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 16:00:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:00:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 16:00:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-24 16:00:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:00:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:00:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:00:08,804 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 16:00:09,540 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-24 16:00:09,540 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-24 16:00:09,564 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:00:09,565 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 16:00:09,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:00:09 BoogieIcfgContainer [2020-09-24 16:00:09,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:00:09,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:00:09,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:00:09,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:00:09,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:00:07" (1/3) ... [2020-09-24 16:00:09,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a55ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:00:09, skipping insertion in model container [2020-09-24 16:00:09,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:08" (2/3) ... [2020-09-24 16:00:09,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a55ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:00:09, skipping insertion in model container [2020-09-24 16:00:09,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:00:09" (3/3) ... [2020-09-24 16:00:09,582 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2020-09-24 16:00:09,593 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:00:09,605 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:00:09,626 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:00:09,658 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:00:09,658 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:00:09,658 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:00:09,659 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:00:09,659 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:00:09,659 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:00:09,659 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:00:09,659 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:00:09,690 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states. [2020-09-24 16:00:09,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 16:00:09,709 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:09,710 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 16:00:09,710 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:09,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:09,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1739904560, now seen corresponding path program 1 times [2020-09-24 16:00:09,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:09,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147390038] [2020-09-24 16:00:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:09,996 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:09,998 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:09,998 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:09,998 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:09,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-24 16:00:09,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:09,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 16:00:09,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:10,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:00:10,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 16:00:10,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-24 16:00:10,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:10,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:10,264 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:10,265 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:10,265 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:10,265 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:10,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:10,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:10,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:10,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:10,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:10,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:10,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:10,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:10,323 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 16:00:10,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147390038] [2020-09-24 16:00:10,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:10,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:00:10,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567704021] [2020-09-24 16:00:10,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:00:10,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:10,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:00:10,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:00:10,355 INFO L87 Difference]: Start difference. First operand 391 states. Second operand 6 states. [2020-09-24 16:00:10,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:10,886 INFO L93 Difference]: Finished difference Result 695 states and 910 transitions. [2020-09-24 16:00:10,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:00:10,889 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-24 16:00:10,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:10,930 INFO L225 Difference]: With dead ends: 695 [2020-09-24 16:00:10,930 INFO L226 Difference]: Without dead ends: 370 [2020-09-24 16:00:10,943 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 16:00:10,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-09-24 16:00:11,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 355. [2020-09-24 16:00:11,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-24 16:00:11,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 414 transitions. [2020-09-24 16:00:11,058 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 414 transitions. Word has length 167 [2020-09-24 16:00:11,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:11,059 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 414 transitions. [2020-09-24 16:00:11,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:00:11,059 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 414 transitions. [2020-09-24 16:00:11,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-24 16:00:11,064 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:11,064 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:11,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:00:11,065 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:11,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:11,065 INFO L82 PathProgramCache]: Analyzing trace with hash 507328089, now seen corresponding path program 1 times [2020-09-24 16:00:11,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:11,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625013485] [2020-09-24 16:00:11,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:11,130 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:11,130 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:11,131 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:11,131 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:11,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-24 16:00:11,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:11,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:00:11,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:11,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:00:11,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 16:00:11,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-24 16:00:11,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:11,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:11,308 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:11,309 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:11,309 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:11,310 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:11,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:11,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:11,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:11,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:11,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:11,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:11,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:11,349 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:11,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625013485] [2020-09-24 16:00:11,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:11,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:00:11,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946913153] [2020-09-24 16:00:11,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:00:11,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:11,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:00:11,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:00:11,363 INFO L87 Difference]: Start difference. First operand 355 states and 414 transitions. Second operand 6 states. [2020-09-24 16:00:11,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:11,700 INFO L93 Difference]: Finished difference Result 616 states and 766 transitions. [2020-09-24 16:00:11,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:00:11,701 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 186 [2020-09-24 16:00:11,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:11,708 INFO L225 Difference]: With dead ends: 616 [2020-09-24 16:00:11,708 INFO L226 Difference]: Without dead ends: 413 [2020-09-24 16:00:11,711 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 16:00:11,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-09-24 16:00:11,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 368. [2020-09-24 16:00:11,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2020-09-24 16:00:11,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 432 transitions. [2020-09-24 16:00:11,745 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 432 transitions. Word has length 186 [2020-09-24 16:00:11,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:11,746 INFO L479 AbstractCegarLoop]: Abstraction has 368 states and 432 transitions. [2020-09-24 16:00:11,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:00:11,749 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 432 transitions. [2020-09-24 16:00:11,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 16:00:11,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:11,758 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:11,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:00:11,760 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:11,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:11,760 INFO L82 PathProgramCache]: Analyzing trace with hash -5837123, now seen corresponding path program 1 times [2020-09-24 16:00:11,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:11,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435357428] [2020-09-24 16:00:11,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:11,841 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:11,845 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:11,845 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:11,845 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:11,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 16:00:11,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:11,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:00:11,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-09-24 16:00:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:00:11,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:11,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:11,932 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:11,933 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:11,933 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:11,933 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:11,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:11,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:11,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:11,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:11,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:11,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:11,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:11,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:11,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435357428] [2020-09-24 16:00:11,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:11,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:11,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826471258] [2020-09-24 16:00:11,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:11,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:11,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:11,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:11,956 INFO L87 Difference]: Start difference. First operand 368 states and 432 transitions. Second operand 3 states. [2020-09-24 16:00:12,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:12,088 INFO L93 Difference]: Finished difference Result 612 states and 746 transitions. [2020-09-24 16:00:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:12,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-09-24 16:00:12,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:12,091 INFO L225 Difference]: With dead ends: 612 [2020-09-24 16:00:12,092 INFO L226 Difference]: Without dead ends: 396 [2020-09-24 16:00:12,093 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 16:00:12,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-09-24 16:00:12,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 386. [2020-09-24 16:00:12,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-24 16:00:12,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 455 transitions. [2020-09-24 16:00:12,106 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 455 transitions. Word has length 190 [2020-09-24 16:00:12,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:12,107 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 455 transitions. [2020-09-24 16:00:12,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:12,107 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 455 transitions. [2020-09-24 16:00:12,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-09-24 16:00:12,109 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:12,110 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:12,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:00:12,110 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:12,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:12,111 INFO L82 PathProgramCache]: Analyzing trace with hash 491551320, now seen corresponding path program 1 times [2020-09-24 16:00:12,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:12,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539499008] [2020-09-24 16:00:12,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:12,149 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:12,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:12,149 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:12,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:12,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 16:00:12,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:12,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:12,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:12,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:12,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-24 16:00:12,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 16:00:12,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:12,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:12,214 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:12,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:12,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:12,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:12,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:12,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:12,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:12,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:12,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:12,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:12,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:12,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:12,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 16:00:12,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539499008] [2020-09-24 16:00:12,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:12,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:12,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975916962] [2020-09-24 16:00:12,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:12,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:12,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:12,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:12,290 INFO L87 Difference]: Start difference. First operand 386 states and 455 transitions. Second operand 3 states. [2020-09-24 16:00:12,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:12,353 INFO L93 Difference]: Finished difference Result 847 states and 1047 transitions. [2020-09-24 16:00:12,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:12,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-09-24 16:00:12,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:12,360 INFO L225 Difference]: With dead ends: 847 [2020-09-24 16:00:12,360 INFO L226 Difference]: Without dead ends: 613 [2020-09-24 16:00:12,361 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 16:00:12,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-09-24 16:00:12,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2020-09-24 16:00:12,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-09-24 16:00:12,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 743 transitions. [2020-09-24 16:00:12,388 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 743 transitions. Word has length 197 [2020-09-24 16:00:12,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:12,389 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 743 transitions. [2020-09-24 16:00:12,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:12,390 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 743 transitions. [2020-09-24 16:00:12,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 16:00:12,395 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:12,396 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:12,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:00:12,396 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:12,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:12,397 INFO L82 PathProgramCache]: Analyzing trace with hash -525577979, now seen corresponding path program 1 times [2020-09-24 16:00:12,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:12,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604508875] [2020-09-24 16:00:12,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:12,443 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:12,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:12,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:12,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:12,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-09-24 16:00:12,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:12,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:12,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:12,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-24 16:00:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:00:12,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:12,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:12,505 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:12,506 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:12,506 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:12,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:12,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:12,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:12,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:12,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:12,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:12,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:12,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:12,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:12,548 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 16:00:12,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604508875] [2020-09-24 16:00:12,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:12,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:12,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426223845] [2020-09-24 16:00:12,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:12,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:12,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:12,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:12,552 INFO L87 Difference]: Start difference. First operand 613 states and 743 transitions. Second operand 3 states. [2020-09-24 16:00:12,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:12,711 INFO L93 Difference]: Finished difference Result 1135 states and 1416 transitions. [2020-09-24 16:00:12,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:12,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-09-24 16:00:12,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:12,716 INFO L225 Difference]: With dead ends: 1135 [2020-09-24 16:00:12,716 INFO L226 Difference]: Without dead ends: 674 [2020-09-24 16:00:12,718 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 16:00:12,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-09-24 16:00:12,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 653. [2020-09-24 16:00:12,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2020-09-24 16:00:12,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 793 transitions. [2020-09-24 16:00:12,742 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 793 transitions. Word has length 210 [2020-09-24 16:00:12,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:12,743 INFO L479 AbstractCegarLoop]: Abstraction has 653 states and 793 transitions. [2020-09-24 16:00:12,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:12,743 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 793 transitions. [2020-09-24 16:00:12,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 16:00:12,746 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:12,747 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:12,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:00:12,747 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:12,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:12,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1730770704, now seen corresponding path program 1 times [2020-09-24 16:00:12,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:12,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247408904] [2020-09-24 16:00:12,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:12,787 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:12,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:12,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:12,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:12,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-09-24 16:00:12,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:12,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:12,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:12,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:12,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-09-24 16:00:12,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 16:00:12,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:12,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:12,843 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:12,843 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:12,843 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:12,843 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:12,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:12,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:12,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:12,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:12,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:12,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:12,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:12,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:12,890 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:00:12,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247408904] [2020-09-24 16:00:12,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:12,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:12,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451857037] [2020-09-24 16:00:12,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:12,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:12,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:12,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:12,893 INFO L87 Difference]: Start difference. First operand 653 states and 793 transitions. Second operand 3 states. [2020-09-24 16:00:12,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:12,925 INFO L93 Difference]: Finished difference Result 1585 states and 1965 transitions. [2020-09-24 16:00:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:12,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-09-24 16:00:12,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:12,932 INFO L225 Difference]: With dead ends: 1585 [2020-09-24 16:00:12,932 INFO L226 Difference]: Without dead ends: 1084 [2020-09-24 16:00:12,935 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 16:00:12,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2020-09-24 16:00:12,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1082. [2020-09-24 16:00:12,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1082 states. [2020-09-24 16:00:12,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1319 transitions. [2020-09-24 16:00:12,987 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1319 transitions. Word has length 217 [2020-09-24 16:00:12,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:12,988 INFO L479 AbstractCegarLoop]: Abstraction has 1082 states and 1319 transitions. [2020-09-24 16:00:12,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:12,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1319 transitions. [2020-09-24 16:00:12,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-24 16:00:12,995 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:12,996 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:12,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 16:00:12,996 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:12,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:12,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1258952316, now seen corresponding path program 1 times [2020-09-24 16:00:12,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:12,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292404376] [2020-09-24 16:00:12,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:13,038 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:13,039 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:13,039 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:13,039 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:13,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-24 16:00:13,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:13,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:13,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:13,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:13,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-24 16:00:13,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 16:00:13,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:13,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:13,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:13,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:13,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:13,107 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:13,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:13,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:13,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:13,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:13,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:13,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:13,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:13,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:13,155 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 16:00:13,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292404376] [2020-09-24 16:00:13,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:13,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:13,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920359692] [2020-09-24 16:00:13,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:13,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:13,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:13,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:13,158 INFO L87 Difference]: Start difference. First operand 1082 states and 1319 transitions. Second operand 3 states. [2020-09-24 16:00:13,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:13,212 INFO L93 Difference]: Finished difference Result 2030 states and 2504 transitions. [2020-09-24 16:00:13,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:13,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-09-24 16:00:13,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:13,221 INFO L225 Difference]: With dead ends: 2030 [2020-09-24 16:00:13,222 INFO L226 Difference]: Without dead ends: 1100 [2020-09-24 16:00:13,225 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 16:00:13,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2020-09-24 16:00:13,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1090. [2020-09-24 16:00:13,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1090 states. [2020-09-24 16:00:13,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1323 transitions. [2020-09-24 16:00:13,326 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1323 transitions. Word has length 218 [2020-09-24 16:00:13,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:13,327 INFO L479 AbstractCegarLoop]: Abstraction has 1090 states and 1323 transitions. [2020-09-24 16:00:13,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:13,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1323 transitions. [2020-09-24 16:00:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 16:00:13,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:13,335 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:13,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 16:00:13,336 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:13,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:13,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1830962644, now seen corresponding path program 1 times [2020-09-24 16:00:13,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:13,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064019254] [2020-09-24 16:00:13,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:13,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:13,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:13,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:13,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:13,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 16:00:13,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:13,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:13,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:13,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 16:00:13,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:00:13,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:13,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:13,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:13,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:13,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:13,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:13,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:13,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:13,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:13,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:13,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:13,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:13,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:13,530 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 16:00:13,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064019254] [2020-09-24 16:00:13,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:13,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:13,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049024460] [2020-09-24 16:00:13,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:13,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:13,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:13,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:13,534 INFO L87 Difference]: Start difference. First operand 1090 states and 1323 transitions. Second operand 3 states. [2020-09-24 16:00:13,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:13,617 INFO L93 Difference]: Finished difference Result 2952 states and 3635 transitions. [2020-09-24 16:00:13,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:13,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-09-24 16:00:13,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:13,632 INFO L225 Difference]: With dead ends: 2952 [2020-09-24 16:00:13,633 INFO L226 Difference]: Without dead ends: 2014 [2020-09-24 16:00:13,636 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 16:00:13,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2020-09-24 16:00:13,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2012. [2020-09-24 16:00:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2012 states. [2020-09-24 16:00:13,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 2455 transitions. [2020-09-24 16:00:13,742 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 2455 transitions. Word has length 220 [2020-09-24 16:00:13,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:13,743 INFO L479 AbstractCegarLoop]: Abstraction has 2012 states and 2455 transitions. [2020-09-24 16:00:13,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:13,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 2455 transitions. [2020-09-24 16:00:13,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 16:00:13,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:13,753 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:13,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 16:00:13,753 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:13,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:13,754 INFO L82 PathProgramCache]: Analyzing trace with hash 777824814, now seen corresponding path program 1 times [2020-09-24 16:00:13,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:13,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365783816] [2020-09-24 16:00:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:13,822 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:13,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:13,822 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:13,823 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:13,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 16:00:13,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:13,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:00:13,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 16:00:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 16:00:13,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:13,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:13,900 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:13,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:13,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:13,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:13,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:13,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:13,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:13,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:13,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:13,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:13,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:13,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:13,973 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 16:00:13,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365783816] [2020-09-24 16:00:13,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:13,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:13,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769985234] [2020-09-24 16:00:13,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:13,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:13,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:13,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:13,983 INFO L87 Difference]: Start difference. First operand 2012 states and 2455 transitions. Second operand 3 states. [2020-09-24 16:00:14,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:14,080 INFO L93 Difference]: Finished difference Result 2967 states and 3629 transitions. [2020-09-24 16:00:14,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:14,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-09-24 16:00:14,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:14,096 INFO L225 Difference]: With dead ends: 2967 [2020-09-24 16:00:14,097 INFO L226 Difference]: Without dead ends: 2029 [2020-09-24 16:00:14,100 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 16:00:14,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2020-09-24 16:00:14,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 2027. [2020-09-24 16:00:14,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2027 states. [2020-09-24 16:00:14,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2461 transitions. [2020-09-24 16:00:14,256 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2461 transitions. Word has length 220 [2020-09-24 16:00:14,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:14,257 INFO L479 AbstractCegarLoop]: Abstraction has 2027 states and 2461 transitions. [2020-09-24 16:00:14,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:14,258 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2461 transitions. [2020-09-24 16:00:14,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-24 16:00:14,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:14,267 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:00:14,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 16:00:14,267 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:14,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:14,268 INFO L82 PathProgramCache]: Analyzing trace with hash -939173952, now seen corresponding path program 1 times [2020-09-24 16:00:14,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:14,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152315032] [2020-09-24 16:00:14,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:14,312 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:14,312 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:14,312 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:14,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:14,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-24 16:00:14,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:14,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:14,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:14,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:14,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-09-24 16:00:14,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 16:00:14,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:14,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:14,399 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:14,399 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:14,400 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:14,400 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:14,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:14,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:14,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:14,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:14,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:14,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:14,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:14,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:14,432 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 16:00:14,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152315032] [2020-09-24 16:00:14,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:14,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:14,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124820307] [2020-09-24 16:00:14,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:14,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:14,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:14,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:14,435 INFO L87 Difference]: Start difference. First operand 2027 states and 2461 transitions. Second operand 3 states. [2020-09-24 16:00:14,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:14,540 INFO L93 Difference]: Finished difference Result 3887 states and 4768 transitions. [2020-09-24 16:00:14,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:14,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-09-24 16:00:14,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:14,555 INFO L225 Difference]: With dead ends: 3887 [2020-09-24 16:00:14,555 INFO L226 Difference]: Without dead ends: 2946 [2020-09-24 16:00:14,558 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 16:00:14,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2020-09-24 16:00:14,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2020-09-24 16:00:14,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2946 states. [2020-09-24 16:00:14,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 3588 transitions. [2020-09-24 16:00:14,662 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 3588 transitions. Word has length 221 [2020-09-24 16:00:14,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:14,662 INFO L479 AbstractCegarLoop]: Abstraction has 2946 states and 3588 transitions. [2020-09-24 16:00:14,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:14,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 3588 transitions. [2020-09-24 16:00:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-24 16:00:14,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:14,670 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:14,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 16:00:14,670 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:14,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:14,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1852648600, now seen corresponding path program 1 times [2020-09-24 16:00:14,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:14,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930859142] [2020-09-24 16:00:14,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:14,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:14,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:14,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:14,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:14,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-24 16:00:14,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:14,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:14,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:14,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 215 [2020-09-24 16:00:14,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:00:14,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:14,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:14,755 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:14,755 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:14,756 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:14,756 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:14,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:14,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:14,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:14,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:14,807 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 16:00:14,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930859142] [2020-09-24 16:00:14,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:14,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:14,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144719045] [2020-09-24 16:00:14,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:14,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:14,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:14,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:14,810 INFO L87 Difference]: Start difference. First operand 2946 states and 3588 transitions. Second operand 3 states. [2020-09-24 16:00:15,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:15,142 INFO L93 Difference]: Finished difference Result 6400 states and 8052 transitions. [2020-09-24 16:00:15,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:15,142 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2020-09-24 16:00:15,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:15,166 INFO L225 Difference]: With dead ends: 6400 [2020-09-24 16:00:15,167 INFO L226 Difference]: Without dead ends: 3609 [2020-09-24 16:00:15,174 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 16:00:15,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3609 states. [2020-09-24 16:00:15,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3609 to 3423. [2020-09-24 16:00:15,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3423 states. [2020-09-24 16:00:15,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3423 states to 3423 states and 4104 transitions. [2020-09-24 16:00:15,306 INFO L78 Accepts]: Start accepts. Automaton has 3423 states and 4104 transitions. Word has length 231 [2020-09-24 16:00:15,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:15,306 INFO L479 AbstractCegarLoop]: Abstraction has 3423 states and 4104 transitions. [2020-09-24 16:00:15,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:15,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3423 states and 4104 transitions. [2020-09-24 16:00:15,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-24 16:00:15,315 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:15,315 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:15,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 16:00:15,315 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:15,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:15,316 INFO L82 PathProgramCache]: Analyzing trace with hash 598717384, now seen corresponding path program 1 times [2020-09-24 16:00:15,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:15,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133470878] [2020-09-24 16:00:15,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:15,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:15,350 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:15,350 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:15,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:15,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-24 16:00:15,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:15,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:15,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:15,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:15,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 215 [2020-09-24 16:00:15,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:00:15,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:15,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:15,408 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:15,409 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:15,409 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:15,409 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:15,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:15,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:15,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:15,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:15,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:15,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:15,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:15,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 16:00:15,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133470878] [2020-09-24 16:00:15,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:15,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:15,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342956431] [2020-09-24 16:00:15,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:15,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:15,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:15,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:15,442 INFO L87 Difference]: Start difference. First operand 3423 states and 4104 transitions. Second operand 3 states. [2020-09-24 16:00:15,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:15,650 INFO L93 Difference]: Finished difference Result 7032 states and 8518 transitions. [2020-09-24 16:00:15,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:15,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2020-09-24 16:00:15,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:15,671 INFO L225 Difference]: With dead ends: 7032 [2020-09-24 16:00:15,672 INFO L226 Difference]: Without dead ends: 3776 [2020-09-24 16:00:15,680 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 16:00:15,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2020-09-24 16:00:15,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3636. [2020-09-24 16:00:15,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3636 states. [2020-09-24 16:00:15,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 4332 transitions. [2020-09-24 16:00:15,828 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 4332 transitions. Word has length 231 [2020-09-24 16:00:15,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:15,829 INFO L479 AbstractCegarLoop]: Abstraction has 3636 states and 4332 transitions. [2020-09-24 16:00:15,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:15,830 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 4332 transitions. [2020-09-24 16:00:15,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-24 16:00:15,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:15,846 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:15,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 16:00:15,847 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:15,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:15,848 INFO L82 PathProgramCache]: Analyzing trace with hash -320985619, now seen corresponding path program 1 times [2020-09-24 16:00:15,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:15,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614606430] [2020-09-24 16:00:15,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:15,903 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:15,904 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:15,904 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:15,904 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:15,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-09-24 16:00:15,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:15,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:15,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 220 [2020-09-24 16:00:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 16:00:15,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:15,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:15,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:15,982 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:15,982 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:15,983 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:15,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:15,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:15,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:15,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:15,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:15,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:15,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:15,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:16,094 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-24 16:00:16,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614606430] [2020-09-24 16:00:16,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:16,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:16,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838963452] [2020-09-24 16:00:16,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:16,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:16,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:16,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:16,099 INFO L87 Difference]: Start difference. First operand 3636 states and 4332 transitions. Second operand 3 states. [2020-09-24 16:00:16,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:16,273 INFO L93 Difference]: Finished difference Result 7105 states and 8510 transitions. [2020-09-24 16:00:16,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:16,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2020-09-24 16:00:16,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:16,303 INFO L225 Difference]: With dead ends: 7105 [2020-09-24 16:00:16,304 INFO L226 Difference]: Without dead ends: 4785 [2020-09-24 16:00:16,312 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 16:00:16,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2020-09-24 16:00:16,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4785. [2020-09-24 16:00:16,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4785 states. [2020-09-24 16:00:16,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4785 states to 4785 states and 5711 transitions. [2020-09-24 16:00:16,497 INFO L78 Accepts]: Start accepts. Automaton has 4785 states and 5711 transitions. Word has length 246 [2020-09-24 16:00:16,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:16,498 INFO L479 AbstractCegarLoop]: Abstraction has 4785 states and 5711 transitions. [2020-09-24 16:00:16,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:16,498 INFO L276 IsEmpty]: Start isEmpty. Operand 4785 states and 5711 transitions. [2020-09-24 16:00:16,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-09-24 16:00:16,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:16,513 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:16,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 16:00:16,513 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:16,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:16,514 INFO L82 PathProgramCache]: Analyzing trace with hash -2112197708, now seen corresponding path program 1 times [2020-09-24 16:00:16,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:16,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859907785] [2020-09-24 16:00:16,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:16,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:16,588 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:16,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:16,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:16,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-24 16:00:16,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:16,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:16,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:16,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:16,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-09-24 16:00:16,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 16:00:16,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:16,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:16,636 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:16,636 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:16,636 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:16,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:16,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:16,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:16,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:16,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:16,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:16,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-24 16:00:16,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859907785] [2020-09-24 16:00:16,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:16,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:16,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666254667] [2020-09-24 16:00:16,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:16,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:16,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:16,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:16,677 INFO L87 Difference]: Start difference. First operand 4785 states and 5711 transitions. Second operand 3 states. [2020-09-24 16:00:16,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:16,935 INFO L93 Difference]: Finished difference Result 9827 states and 11856 transitions. [2020-09-24 16:00:16,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:16,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-09-24 16:00:16,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:16,979 INFO L225 Difference]: With dead ends: 9827 [2020-09-24 16:00:16,979 INFO L226 Difference]: Without dead ends: 5209 [2020-09-24 16:00:16,990 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 16:00:16,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2020-09-24 16:00:17,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5101. [2020-09-24 16:00:17,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5101 states. [2020-09-24 16:00:17,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 6047 transitions. [2020-09-24 16:00:17,146 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 6047 transitions. Word has length 255 [2020-09-24 16:00:17,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:17,146 INFO L479 AbstractCegarLoop]: Abstraction has 5101 states and 6047 transitions. [2020-09-24 16:00:17,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:17,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 6047 transitions. [2020-09-24 16:00:17,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-24 16:00:17,162 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:17,162 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:17,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 16:00:17,163 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:17,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:17,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1182669231, now seen corresponding path program 1 times [2020-09-24 16:00:17,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:17,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568298358] [2020-09-24 16:00:17,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:17,217 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:17,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:17,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:17,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:17,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-09-24 16:00:17,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:17,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:00:17,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:17,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:00:17,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-09-24 16:00:17,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 16:00:17,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:17,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:17,327 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:17,328 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:17,328 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:17,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:17,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:17,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:17,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:17,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:17,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:17,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:17,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:17,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:17,376 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 83 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 16:00:17,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568298358] [2020-09-24 16:00:17,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:00:17,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-24 16:00:17,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939882172] [2020-09-24 16:00:17,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:00:17,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:17,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:00:17,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:00:17,379 INFO L87 Difference]: Start difference. First operand 5101 states and 6047 transitions. Second operand 5 states. [2020-09-24 16:00:17,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:17,618 INFO L93 Difference]: Finished difference Result 8141 states and 9666 transitions. [2020-09-24 16:00:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:00:17,619 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2020-09-24 16:00:17,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:17,631 INFO L225 Difference]: With dead ends: 8141 [2020-09-24 16:00:17,631 INFO L226 Difference]: Without dead ends: 5653 [2020-09-24 16:00:17,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:00:17,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5653 states. [2020-09-24 16:00:17,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5653 to 5182. [2020-09-24 16:00:17,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5182 states. [2020-09-24 16:00:17,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5182 states to 5182 states and 6147 transitions. [2020-09-24 16:00:17,766 INFO L78 Accepts]: Start accepts. Automaton has 5182 states and 6147 transitions. Word has length 274 [2020-09-24 16:00:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:17,767 INFO L479 AbstractCegarLoop]: Abstraction has 5182 states and 6147 transitions. [2020-09-24 16:00:17,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:00:17,767 INFO L276 IsEmpty]: Start isEmpty. Operand 5182 states and 6147 transitions. [2020-09-24 16:00:17,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-09-24 16:00:17,778 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:17,778 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:17,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 16:00:17,779 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:17,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:17,779 INFO L82 PathProgramCache]: Analyzing trace with hash 178559340, now seen corresponding path program 2 times [2020-09-24 16:00:17,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:17,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751788422] [2020-09-24 16:00:17,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:17,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:17,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:17,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:17,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:17,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-09-24 16:00:17,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:17,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:17,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:00:17,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-09-24 16:00:17,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 16:00:17,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:17,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:17,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:17,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:17,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:17,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:17,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:17,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:17,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:17,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:17,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:17,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:17,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:17,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:18,000 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 16:00:18,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751788422] [2020-09-24 16:00:18,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:18,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:00:18,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897294146] [2020-09-24 16:00:18,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:00:18,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:18,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:00:18,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:00:18,002 INFO L87 Difference]: Start difference. First operand 5182 states and 6147 transitions. Second operand 5 states. [2020-09-24 16:00:18,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:18,325 INFO L93 Difference]: Finished difference Result 8871 states and 10458 transitions. [2020-09-24 16:00:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:00:18,325 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 277 [2020-09-24 16:00:18,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:18,337 INFO L225 Difference]: With dead ends: 8871 [2020-09-24 16:00:18,337 INFO L226 Difference]: Without dead ends: 6302 [2020-09-24 16:00:18,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:00:18,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6302 states. [2020-09-24 16:00:18,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6302 to 5182. [2020-09-24 16:00:18,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5182 states. [2020-09-24 16:00:18,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5182 states to 5182 states and 6147 transitions. [2020-09-24 16:00:18,475 INFO L78 Accepts]: Start accepts. Automaton has 5182 states and 6147 transitions. Word has length 277 [2020-09-24 16:00:18,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:18,475 INFO L479 AbstractCegarLoop]: Abstraction has 5182 states and 6147 transitions. [2020-09-24 16:00:18,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:00:18,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5182 states and 6147 transitions. [2020-09-24 16:00:18,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-09-24 16:00:18,486 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:18,487 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:18,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 16:00:18,487 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:18,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:18,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1946922308, now seen corresponding path program 1 times [2020-09-24 16:00:18,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:18,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54228659] [2020-09-24 16:00:18,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:18,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:18,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:18,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:18,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:18,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-09-24 16:00:18,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:18,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:18,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:00:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-09-24 16:00:18,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 16:00:18,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:18,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:18,583 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:18,584 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:18,584 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:18,584 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:18,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:18,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:18,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:18,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:18,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:18,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:18,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:18,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:18,627 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-24 16:00:18,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54228659] [2020-09-24 16:00:18,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:18,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:00:18,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378544714] [2020-09-24 16:00:18,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:00:18,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:18,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:00:18,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:00:18,630 INFO L87 Difference]: Start difference. First operand 5182 states and 6147 transitions. Second operand 4 states. [2020-09-24 16:00:19,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:19,067 INFO L93 Difference]: Finished difference Result 13114 states and 15691 transitions. [2020-09-24 16:00:19,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:00:19,068 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 277 [2020-09-24 16:00:19,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:19,083 INFO L225 Difference]: With dead ends: 13114 [2020-09-24 16:00:19,083 INFO L226 Difference]: Without dead ends: 8099 [2020-09-24 16:00:19,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:00:19,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8099 states. [2020-09-24 16:00:19,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8099 to 5210. [2020-09-24 16:00:19,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5210 states. [2020-09-24 16:00:19,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5210 states to 5210 states and 6147 transitions. [2020-09-24 16:00:19,263 INFO L78 Accepts]: Start accepts. Automaton has 5210 states and 6147 transitions. Word has length 277 [2020-09-24 16:00:19,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:19,264 INFO L479 AbstractCegarLoop]: Abstraction has 5210 states and 6147 transitions. [2020-09-24 16:00:19,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:00:19,264 INFO L276 IsEmpty]: Start isEmpty. Operand 5210 states and 6147 transitions. [2020-09-24 16:00:19,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-09-24 16:00:19,275 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:19,275 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:19,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 16:00:19,275 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:19,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:19,276 INFO L82 PathProgramCache]: Analyzing trace with hash -507122916, now seen corresponding path program 3 times [2020-09-24 16:00:19,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:19,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675805633] [2020-09-24 16:00:19,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:19,317 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:19,318 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:19,318 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:19,318 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:19,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-09-24 16:00:19,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:19,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:19,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:00:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-09-24 16:00:19,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 16:00:19,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:19,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:19,381 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:19,381 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:19,382 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:19,382 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:19,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:19,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:19,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:19,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:19,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:19,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:19,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:19,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:19,426 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-24 16:00:19,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675805633] [2020-09-24 16:00:19,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:19,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:00:19,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526039230] [2020-09-24 16:00:19,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:00:19,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:19,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:00:19,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:00:19,429 INFO L87 Difference]: Start difference. First operand 5210 states and 6147 transitions. Second operand 5 states. [2020-09-24 16:00:19,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:19,752 INFO L93 Difference]: Finished difference Result 8531 states and 10010 transitions. [2020-09-24 16:00:19,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:00:19,752 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 277 [2020-09-24 16:00:19,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:19,762 INFO L225 Difference]: With dead ends: 8531 [2020-09-24 16:00:19,763 INFO L226 Difference]: Without dead ends: 5926 [2020-09-24 16:00:19,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:00:19,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5926 states. [2020-09-24 16:00:19,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 5290. [2020-09-24 16:00:19,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5290 states. [2020-09-24 16:00:19,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 6235 transitions. [2020-09-24 16:00:19,890 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 6235 transitions. Word has length 277 [2020-09-24 16:00:19,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:19,890 INFO L479 AbstractCegarLoop]: Abstraction has 5290 states and 6235 transitions. [2020-09-24 16:00:19,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:00:19,890 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 6235 transitions. [2020-09-24 16:00:19,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-09-24 16:00:19,902 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:19,902 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:19,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-24 16:00:19,903 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:19,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:19,903 INFO L82 PathProgramCache]: Analyzing trace with hash 875870054, now seen corresponding path program 1 times [2020-09-24 16:00:19,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:19,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762752710] [2020-09-24 16:00:19,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:19,944 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:19,944 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:19,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:19,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:19,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-09-24 16:00:19,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:19,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:19,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:19,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:19,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 237 [2020-09-24 16:00:19,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:00:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:19,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:19,990 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:19,990 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:19,990 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:19,991 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:19,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:19,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:19,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:19,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:19,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:19,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:19,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:19,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:20,035 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-24 16:00:20,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762752710] [2020-09-24 16:00:20,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:20,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:20,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838963633] [2020-09-24 16:00:20,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:20,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:20,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:20,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:20,038 INFO L87 Difference]: Start difference. First operand 5290 states and 6235 transitions. Second operand 3 states. [2020-09-24 16:00:20,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:20,172 INFO L93 Difference]: Finished difference Result 9851 states and 11643 transitions. [2020-09-24 16:00:20,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:20,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 279 [2020-09-24 16:00:20,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:20,189 INFO L225 Difference]: With dead ends: 9851 [2020-09-24 16:00:20,189 INFO L226 Difference]: Without dead ends: 6003 [2020-09-24 16:00:20,198 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 16:00:20,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2020-09-24 16:00:20,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 6003. [2020-09-24 16:00:20,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6003 states. [2020-09-24 16:00:20,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 7068 transitions. [2020-09-24 16:00:20,392 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 7068 transitions. Word has length 279 [2020-09-24 16:00:20,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:20,393 INFO L479 AbstractCegarLoop]: Abstraction has 6003 states and 7068 transitions. [2020-09-24 16:00:20,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:20,393 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 7068 transitions. [2020-09-24 16:00:20,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-24 16:00:20,404 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:20,405 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 16:00:20,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-24 16:00:20,405 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:20,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:20,405 INFO L82 PathProgramCache]: Analyzing trace with hash -802173269, now seen corresponding path program 1 times [2020-09-24 16:00:20,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:20,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141265563] [2020-09-24 16:00:20,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 16:00:20,472 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 16:00:20,472 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 16:00:20,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-24 16:00:20,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:00:20 BoogieIcfgContainer [2020-09-24 16:00:20,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:00:20,534 INFO L168 Benchmark]: Toolchain (without parser) took 12566.22 ms. Allocated memory was 140.0 MB in the beginning and 655.9 MB in the end (delta: 515.9 MB). Free memory was 103.0 MB in the beginning and 551.1 MB in the end (delta: -448.1 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:20,538 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 16:00:20,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 542.27 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 102.4 MB in the beginning and 179.5 MB in the end (delta: -77.1 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:20,542 INFO L168 Benchmark]: Boogie Preprocessor took 64.98 ms. Allocated memory is still 203.9 MB. Free memory was 179.5 MB in the beginning and 177.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:20,542 INFO L168 Benchmark]: RCFGBuilder took 995.61 ms. Allocated memory is still 203.9 MB. Free memory was 177.1 MB in the beginning and 112.1 MB in the end (delta: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:20,543 INFO L168 Benchmark]: TraceAbstraction took 10955.75 ms. Allocated memory was 203.9 MB in the beginning and 655.9 MB in the end (delta: 451.9 MB). Free memory was 112.1 MB in the beginning and 551.1 MB in the end (delta: -439.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:20,550 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 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 542.27 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 102.4 MB in the beginning and 179.5 MB in the end (delta: -77.1 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.98 ms. Allocated memory is still 203.9 MB. Free memory was 179.5 MB in the beginning and 177.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 995.61 ms. Allocated memory is still 203.9 MB. Free memory was 177.1 MB in the beginning and 112.1 MB in the end (delta: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10955.75 ms. Allocated memory was 203.9 MB in the beginning and 655.9 MB in the end (delta: 451.9 MB). Free memory was 112.1 MB in the beginning and 551.1 MB in the end (delta: -439.0 MB). Peak memory consumption was 13.0 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: 10.8s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8642 SDtfs, 4991 SDslu, 9135 SDs, 0 SdLazy, 1938 SolverSat, 228 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6003occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 5657 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 4673 NumberOfCodeBlocks, 4673 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 4374 ConstructedInterpolants, 0 QuantifiedInterpolants, 1360971 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 18 PerfectInterpolantSequences, 887/892 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...