/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_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:00:02,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:00:02,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:00:02,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:00:02,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:00:02,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:00:02,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:00:02,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:00:02,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:00:02,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:00:02,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:00:02,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:00:02,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:00:02,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:00:02,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:00:02,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:00:02,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:00:02,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:00:02,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:00:02,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:00:02,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:00:02,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:00:02,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:00:02,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:00:02,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:00:02,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:00:02,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:00:02,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:00:02,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:00:02,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:00:02,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:00:02,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:00:02,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:00:02,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:00:02,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:00:02,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:00:02,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:00:02,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:00:02,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:00:02,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:00:02,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:00:02,753 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 16:00:02,791 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:00:02,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:00:02,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:00:02,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:00:02,793 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:00:02,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:00:02,793 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:00:02,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:00:02,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:00:02,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:00:02,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:00:02,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:00:02,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:00:02,795 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:00:02,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:00:02,795 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:00:02,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:00:02,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:00:02,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:00:02,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:00:02,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:00:02,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:00:02,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:00:02,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:00:02,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:00:02,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:00:02,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:00:02,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:00:02,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:00:02,798 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 16:00:03,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:00:03,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:00:03,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:00:03,295 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:00:03,296 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:00:03,297 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-24 16:00:03,388 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4247e827b/dcef28da316a421088e73737dd7acf99/FLAG4e68e1627 [2020-09-24 16:00:03,955 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:00:03,956 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-24 16:00:03,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4247e827b/dcef28da316a421088e73737dd7acf99/FLAG4e68e1627 [2020-09-24 16:00:04,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4247e827b/dcef28da316a421088e73737dd7acf99 [2020-09-24 16:00:04,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:00:04,281 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:00:04,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:00:04,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:00:04,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:00:04,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:00:04" (1/1) ... [2020-09-24 16:00:04,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27423965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:04, skipping insertion in model container [2020-09-24 16:00:04,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:00:04" (1/1) ... [2020-09-24 16:00:04,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:00:04,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:00:04,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:00:04,665 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:00:04,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:00:04,849 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:00:04,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:04 WrapperNode [2020-09-24 16:00:04,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:00:04,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:00:04,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:00:04,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:00:04,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:04" (1/1) ... [2020-09-24 16:00:04,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:04" (1/1) ... [2020-09-24 16:00:04,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:04" (1/1) ... [2020-09-24 16:00:04,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:04" (1/1) ... [2020-09-24 16:00:04,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:04" (1/1) ... [2020-09-24 16:00:04,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:04" (1/1) ... [2020-09-24 16:00:04,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:04" (1/1) ... [2020-09-24 16:00:04,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:00:04,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:00:04,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:00:04,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:00:04,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:04" (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 16:00:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:00:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:00:05,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-24 16:00:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:00:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:00:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 16:00:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:00:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 16:00:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-24 16:00:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:00:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:00:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:00:05,229 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 16:00:05,940 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-24 16:00:05,940 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-24 16:00:05,988 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:00:05,989 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 16:00:06,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:00:06 BoogieIcfgContainer [2020-09-24 16:00:06,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:00:06,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:00:06,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:00:06,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:00:06,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:00:04" (1/3) ... [2020-09-24 16:00:06,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e660a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:00:06, skipping insertion in model container [2020-09-24 16:00:06,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:00:04" (2/3) ... [2020-09-24 16:00:06,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e660a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:00:06, skipping insertion in model container [2020-09-24 16:00:06,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:00:06" (3/3) ... [2020-09-24 16:00:06,020 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-1.c [2020-09-24 16:00:06,033 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:00:06,048 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:00:06,070 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:00:06,106 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:00:06,106 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:00:06,106 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:00:06,106 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:00:06,107 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:00:06,107 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:00:06,107 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:00:06,107 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:00:06,136 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states. [2020-09-24 16:00:06,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 16:00:06,156 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:06,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:06,158 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:06,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:06,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1688119681, now seen corresponding path program 1 times [2020-09-24 16:00:06,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:06,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482907543] [2020-09-24 16:00:06,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:06,410 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:06,410 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:06,411 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:06,411 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:06,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-24 16:00:06,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:06,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 16:00:06,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:06,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:00:06,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 16:00:06,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-24 16:00:06,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:06,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:06,733 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:06,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:06,734 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:06,734 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:06,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:06,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:06,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:06,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:06,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:06,799 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 16:00:06,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482907543] [2020-09-24 16:00:06,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:06,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:00:06,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527988435] [2020-09-24 16:00:06,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:00:06,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:06,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:00:06,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:00:06,833 INFO L87 Difference]: Start difference. First operand 385 states. Second operand 6 states. [2020-09-24 16:00:07,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:07,356 INFO L93 Difference]: Finished difference Result 689 states and 904 transitions. [2020-09-24 16:00:07,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:00:07,359 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2020-09-24 16:00:07,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:07,385 INFO L225 Difference]: With dead ends: 689 [2020-09-24 16:00:07,386 INFO L226 Difference]: Without dead ends: 364 [2020-09-24 16:00:07,393 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 16:00:07,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-09-24 16:00:07,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 349. [2020-09-24 16:00:07,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-09-24 16:00:07,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 408 transitions. [2020-09-24 16:00:07,475 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 408 transitions. Word has length 161 [2020-09-24 16:00:07,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:07,476 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 408 transitions. [2020-09-24 16:00:07,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:00:07,477 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 408 transitions. [2020-09-24 16:00:07,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-24 16:00:07,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:07,481 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] [2020-09-24 16:00:07,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:00:07,482 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:07,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:07,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1044760098, now seen corresponding path program 1 times [2020-09-24 16:00:07,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:07,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473280719] [2020-09-24 16:00:07,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:07,549 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:07,549 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:07,550 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:07,550 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:07,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-24 16:00:07,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:07,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:00:07,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:07,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:00:07,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 16:00:07,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 16:00:07,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 16:00:07,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:07,788 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:07,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:07,789 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:07,790 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:07,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:07,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:07,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:07,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:07,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:07,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:07,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:07,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:07,828 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 16:00:07,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473280719] [2020-09-24 16:00:07,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:07,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:00:07,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688264008] [2020-09-24 16:00:07,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:00:07,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:07,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:00:07,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:00:07,842 INFO L87 Difference]: Start difference. First operand 349 states and 408 transitions. Second operand 6 states. [2020-09-24 16:00:08,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:08,202 INFO L93 Difference]: Finished difference Result 610 states and 760 transitions. [2020-09-24 16:00:08,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:00:08,202 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2020-09-24 16:00:08,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:08,210 INFO L225 Difference]: With dead ends: 610 [2020-09-24 16:00:08,210 INFO L226 Difference]: Without dead ends: 407 [2020-09-24 16:00:08,215 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 16:00:08,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-24 16:00:08,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 362. [2020-09-24 16:00:08,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-09-24 16:00:08,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 426 transitions. [2020-09-24 16:00:08,260 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 426 transitions. Word has length 180 [2020-09-24 16:00:08,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:08,261 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 426 transitions. [2020-09-24 16:00:08,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:00:08,262 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 426 transitions. [2020-09-24 16:00:08,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-24 16:00:08,273 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:08,273 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] [2020-09-24 16:00:08,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:00:08,274 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:08,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:08,274 INFO L82 PathProgramCache]: Analyzing trace with hash -975331194, now seen corresponding path program 1 times [2020-09-24 16:00:08,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:08,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510128916] [2020-09-24 16:00:08,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:08,320 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:08,320 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:08,320 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:08,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:08,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-24 16:00:08,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:08,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:08,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:08,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:08,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-24 16:00:08,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:00:08,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:08,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:08,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:08,391 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:08,391 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:08,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:08,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:08,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:08,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:00:08,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:08,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:08,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:08,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:08,432 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 16:00:08,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510128916] [2020-09-24 16:00:08,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:08,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:08,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673814035] [2020-09-24 16:00:08,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:08,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:08,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:08,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:08,438 INFO L87 Difference]: Start difference. First operand 362 states and 426 transitions. Second operand 3 states. [2020-09-24 16:00:08,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:08,607 INFO L93 Difference]: Finished difference Result 608 states and 743 transitions. [2020-09-24 16:00:08,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:08,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2020-09-24 16:00:08,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:08,610 INFO L225 Difference]: With dead ends: 608 [2020-09-24 16:00:08,611 INFO L226 Difference]: Without dead ends: 392 [2020-09-24 16:00:08,612 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 16:00:08,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-09-24 16:00:08,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 380. [2020-09-24 16:00:08,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-24 16:00:08,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 449 transitions. [2020-09-24 16:00:08,626 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 449 transitions. Word has length 184 [2020-09-24 16:00:08,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:08,627 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 449 transitions. [2020-09-24 16:00:08,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:08,627 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 449 transitions. [2020-09-24 16:00:08,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-24 16:00:08,630 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:08,630 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] [2020-09-24 16:00:08,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:00:08,631 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:08,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:08,631 INFO L82 PathProgramCache]: Analyzing trace with hash 103747241, now seen corresponding path program 1 times [2020-09-24 16:00:08,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:08,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811608704] [2020-09-24 16:00:08,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:08,668 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:08,668 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:08,668 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:08,669 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:08,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 16:00:08,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:08,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:08,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:08,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:08,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 16:00:08,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 16:00:08,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:08,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:08,722 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:08,722 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:08,723 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:08,723 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:08,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:08,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:08,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:08,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:08,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:08,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:08,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:08,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:08,752 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 16:00:08,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811608704] [2020-09-24 16:00:08,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:08,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:08,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250473740] [2020-09-24 16:00:08,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:08,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:08,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:08,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:08,755 INFO L87 Difference]: Start difference. First operand 380 states and 449 transitions. Second operand 3 states. [2020-09-24 16:00:08,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:08,819 INFO L93 Difference]: Finished difference Result 841 states and 1041 transitions. [2020-09-24 16:00:08,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:08,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-09-24 16:00:08,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:08,825 INFO L225 Difference]: With dead ends: 841 [2020-09-24 16:00:08,825 INFO L226 Difference]: Without dead ends: 607 [2020-09-24 16:00:08,827 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 16:00:08,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-09-24 16:00:08,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2020-09-24 16:00:08,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-09-24 16:00:08,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 737 transitions. [2020-09-24 16:00:08,870 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 737 transitions. Word has length 191 [2020-09-24 16:00:08,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:08,871 INFO L479 AbstractCegarLoop]: Abstraction has 607 states and 737 transitions. [2020-09-24 16:00:08,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:08,872 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 737 transitions. [2020-09-24 16:00:08,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 16:00:08,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:08,875 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] [2020-09-24 16:00:08,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:00:08,875 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:08,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:08,876 INFO L82 PathProgramCache]: Analyzing trace with hash -574346418, now seen corresponding path program 1 times [2020-09-24 16:00:08,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:08,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016610731] [2020-09-24 16:00:08,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:08,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:08,922 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:08,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:08,923 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:08,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 16:00:08,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:08,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:08,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-24 16:00:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:00:08,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:08,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:08,987 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:08,987 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:08,987 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:08,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:08,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:08,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:08,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:08,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:08,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:08,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:08,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:08,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:09,037 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 16:00:09,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016610731] [2020-09-24 16:00:09,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:09,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:09,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169770656] [2020-09-24 16:00:09,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:09,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:09,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:09,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:09,040 INFO L87 Difference]: Start difference. First operand 607 states and 737 transitions. Second operand 3 states. [2020-09-24 16:00:09,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:09,234 INFO L93 Difference]: Finished difference Result 1129 states and 1410 transitions. [2020-09-24 16:00:09,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:09,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-09-24 16:00:09,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:09,241 INFO L225 Difference]: With dead ends: 1129 [2020-09-24 16:00:09,241 INFO L226 Difference]: Without dead ends: 668 [2020-09-24 16:00:09,243 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 16:00:09,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2020-09-24 16:00:09,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 647. [2020-09-24 16:00:09,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-09-24 16:00:09,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 787 transitions. [2020-09-24 16:00:09,272 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 787 transitions. Word has length 204 [2020-09-24 16:00:09,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:09,272 INFO L479 AbstractCegarLoop]: Abstraction has 647 states and 787 transitions. [2020-09-24 16:00:09,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:09,273 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 787 transitions. [2020-09-24 16:00:09,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 16:00:09,276 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:09,276 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] [2020-09-24 16:00:09,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:00:09,277 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:09,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:09,277 INFO L82 PathProgramCache]: Analyzing trace with hash -375106847, now seen corresponding path program 1 times [2020-09-24 16:00:09,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:09,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035151273] [2020-09-24 16:00:09,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:09,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:09,313 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:09,313 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:09,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:09,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-24 16:00:09,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:09,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:09,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 16:00:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 16:00:09,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:09,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:09,361 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:09,361 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:09,361 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:09,362 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:09,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:09,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:09,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:09,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:09,411 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 16:00:09,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035151273] [2020-09-24 16:00:09,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:09,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:09,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864855640] [2020-09-24 16:00:09,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:09,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:09,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:09,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:09,436 INFO L87 Difference]: Start difference. First operand 647 states and 787 transitions. Second operand 3 states. [2020-09-24 16:00:09,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:09,466 INFO L93 Difference]: Finished difference Result 1579 states and 1959 transitions. [2020-09-24 16:00:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:09,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-09-24 16:00:09,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:09,474 INFO L225 Difference]: With dead ends: 1579 [2020-09-24 16:00:09,474 INFO L226 Difference]: Without dead ends: 1078 [2020-09-24 16:00:09,476 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 16:00:09,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2020-09-24 16:00:09,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1076. [2020-09-24 16:00:09,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1076 states. [2020-09-24 16:00:09,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1313 transitions. [2020-09-24 16:00:09,510 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1313 transitions. Word has length 211 [2020-09-24 16:00:09,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:09,510 INFO L479 AbstractCegarLoop]: Abstraction has 1076 states and 1313 transitions. [2020-09-24 16:00:09,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:09,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1313 transitions. [2020-09-24 16:00:09,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 16:00:09,515 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:09,515 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] [2020-09-24 16:00:09,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 16:00:09,515 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:09,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:09,516 INFO L82 PathProgramCache]: Analyzing trace with hash 743106501, now seen corresponding path program 1 times [2020-09-24 16:00:09,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:09,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959979105] [2020-09-24 16:00:09,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:09,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:09,546 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:09,546 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:09,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:09,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-24 16:00:09,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:09,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:09,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:09,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:09,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-24 16:00:09,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 16:00:09,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:09,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:09,599 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:09,599 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:09,599 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:09,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:09,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:09,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:09,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 16:00:09,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:09,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:09,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:09,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:09,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:09,630 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 16:00:09,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959979105] [2020-09-24 16:00:09,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:09,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:09,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077199440] [2020-09-24 16:00:09,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:09,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:09,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:09,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:09,633 INFO L87 Difference]: Start difference. First operand 1076 states and 1313 transitions. Second operand 3 states. [2020-09-24 16:00:09,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:09,681 INFO L93 Difference]: Finished difference Result 2024 states and 2498 transitions. [2020-09-24 16:00:09,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:09,682 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2020-09-24 16:00:09,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:09,691 INFO L225 Difference]: With dead ends: 2024 [2020-09-24 16:00:09,691 INFO L226 Difference]: Without dead ends: 1094 [2020-09-24 16:00:09,694 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 16:00:09,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2020-09-24 16:00:09,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1084. [2020-09-24 16:00:09,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1084 states. [2020-09-24 16:00:09,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1317 transitions. [2020-09-24 16:00:09,749 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1317 transitions. Word has length 212 [2020-09-24 16:00:09,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:09,749 INFO L479 AbstractCegarLoop]: Abstraction has 1084 states and 1317 transitions. [2020-09-24 16:00:09,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:09,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1317 transitions. [2020-09-24 16:00:09,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-24 16:00:09,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:09,754 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] [2020-09-24 16:00:09,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 16:00:09,755 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:09,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:09,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1288323979, now seen corresponding path program 1 times [2020-09-24 16:00:09,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:09,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843856898] [2020-09-24 16:00:09,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:09,792 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:09,792 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:09,792 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:09,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:09,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-24 16:00:09,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:09,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:09,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:09,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-24 16:00:09,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:00:09,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:09,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:09,859 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:09,860 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:09,860 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:09,860 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:09,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:09,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:09,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 16:00:09,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:09,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:09,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:09,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:09,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:09,937 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 16:00:09,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843856898] [2020-09-24 16:00:09,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:09,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:09,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987213613] [2020-09-24 16:00:09,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:09,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:09,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:09,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:09,943 INFO L87 Difference]: Start difference. First operand 1084 states and 1317 transitions. Second operand 3 states. [2020-09-24 16:00:10,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:10,080 INFO L93 Difference]: Finished difference Result 2946 states and 3629 transitions. [2020-09-24 16:00:10,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:10,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-09-24 16:00:10,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:10,097 INFO L225 Difference]: With dead ends: 2946 [2020-09-24 16:00:10,097 INFO L226 Difference]: Without dead ends: 2008 [2020-09-24 16:00:10,101 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 16:00:10,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2020-09-24 16:00:10,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 2006. [2020-09-24 16:00:10,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2006 states. [2020-09-24 16:00:10,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2449 transitions. [2020-09-24 16:00:10,188 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2449 transitions. Word has length 214 [2020-09-24 16:00:10,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:10,188 INFO L479 AbstractCegarLoop]: Abstraction has 2006 states and 2449 transitions. [2020-09-24 16:00:10,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:10,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2449 transitions. [2020-09-24 16:00:10,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-24 16:00:10,196 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:10,197 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] [2020-09-24 16:00:10,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 16:00:10,198 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:10,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:10,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1320463479, now seen corresponding path program 1 times [2020-09-24 16:00:10,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:10,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312726568] [2020-09-24 16:00:10,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:10,237 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:10,237 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:10,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:10,238 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:10,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-24 16:00:10,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:10,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:10,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:10,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:10,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-24 16:00:10,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 16:00:10,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:10,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:10,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:10,313 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:10,313 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:10,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:10,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:10,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:10,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:10,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:10,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:10,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:10,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:10,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:10,370 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 16:00:10,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312726568] [2020-09-24 16:00:10,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:10,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:10,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323826307] [2020-09-24 16:00:10,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:10,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:10,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:10,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:10,378 INFO L87 Difference]: Start difference. First operand 2006 states and 2449 transitions. Second operand 3 states. [2020-09-24 16:00:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:10,457 INFO L93 Difference]: Finished difference Result 2961 states and 3623 transitions. [2020-09-24 16:00:10,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:10,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-09-24 16:00:10,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:10,473 INFO L225 Difference]: With dead ends: 2961 [2020-09-24 16:00:10,473 INFO L226 Difference]: Without dead ends: 2023 [2020-09-24 16:00:10,477 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 16:00:10,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2020-09-24 16:00:10,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 2021. [2020-09-24 16:00:10,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2021 states. [2020-09-24 16:00:10,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 2455 transitions. [2020-09-24 16:00:10,571 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 2455 transitions. Word has length 214 [2020-09-24 16:00:10,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:10,572 INFO L479 AbstractCegarLoop]: Abstraction has 2021 states and 2455 transitions. [2020-09-24 16:00:10,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:10,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 2455 transitions. [2020-09-24 16:00:10,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-09-24 16:00:10,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:10,581 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] [2020-09-24 16:00:10,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 16:00:10,582 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:10,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:10,583 INFO L82 PathProgramCache]: Analyzing trace with hash -955395695, now seen corresponding path program 1 times [2020-09-24 16:00:10,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:10,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259374060] [2020-09-24 16:00:10,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:10,619 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:10,619 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:10,620 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:10,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:10,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-09-24 16:00:10,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:10,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:10,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:10,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:10,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-24 16:00:10,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 16:00:10,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:10,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:10,694 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:10,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:10,694 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:10,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:10,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:10,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:10,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:10,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:10,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:10,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:10,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:10,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:10,807 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 16:00:10,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259374060] [2020-09-24 16:00:10,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:10,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:10,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486910448] [2020-09-24 16:00:10,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:10,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:10,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:10,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:10,811 INFO L87 Difference]: Start difference. First operand 2021 states and 2455 transitions. Second operand 3 states. [2020-09-24 16:00:10,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:10,950 INFO L93 Difference]: Finished difference Result 3881 states and 4762 transitions. [2020-09-24 16:00:10,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:10,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2020-09-24 16:00:10,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:10,973 INFO L225 Difference]: With dead ends: 3881 [2020-09-24 16:00:10,973 INFO L226 Difference]: Without dead ends: 2940 [2020-09-24 16:00:10,977 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 16:00:10,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2020-09-24 16:00:11,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2940. [2020-09-24 16:00:11,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2940 states. [2020-09-24 16:00:11,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 3582 transitions. [2020-09-24 16:00:11,118 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 3582 transitions. Word has length 215 [2020-09-24 16:00:11,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:11,119 INFO L479 AbstractCegarLoop]: Abstraction has 2940 states and 3582 transitions. [2020-09-24 16:00:11,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:11,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 3582 transitions. [2020-09-24 16:00:11,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-24 16:00:11,129 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:11,129 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] [2020-09-24 16:00:11,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 16:00:11,130 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:11,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:11,130 INFO L82 PathProgramCache]: Analyzing trace with hash -2117708685, now seen corresponding path program 1 times [2020-09-24 16:00:11,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:11,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369424348] [2020-09-24 16:00:11,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:11,174 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:11,174 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:11,175 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:11,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:11,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-24 16:00:11,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:11,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:11,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:11,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:11,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-09-24 16:00:11,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:00:11,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:11,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:11,241 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:11,241 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:11,241 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:11,241 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:11,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:11,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:11,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:11,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:11,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:11,280 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 16:00:11,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369424348] [2020-09-24 16:00:11,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:11,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:11,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091627706] [2020-09-24 16:00:11,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:11,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:11,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:11,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:11,282 INFO L87 Difference]: Start difference. First operand 2940 states and 3582 transitions. Second operand 3 states. [2020-09-24 16:00:11,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:11,565 INFO L93 Difference]: Finished difference Result 6394 states and 8046 transitions. [2020-09-24 16:00:11,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:11,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-09-24 16:00:11,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:11,583 INFO L225 Difference]: With dead ends: 6394 [2020-09-24 16:00:11,584 INFO L226 Difference]: Without dead ends: 3603 [2020-09-24 16:00:11,589 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 16:00:11,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3603 states. [2020-09-24 16:00:11,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3603 to 3417. [2020-09-24 16:00:11,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3417 states. [2020-09-24 16:00:11,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3417 states to 3417 states and 4098 transitions. [2020-09-24 16:00:11,701 INFO L78 Accepts]: Start accepts. Automaton has 3417 states and 4098 transitions. Word has length 225 [2020-09-24 16:00:11,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:11,701 INFO L479 AbstractCegarLoop]: Abstraction has 3417 states and 4098 transitions. [2020-09-24 16:00:11,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:11,701 INFO L276 IsEmpty]: Start isEmpty. Operand 3417 states and 4098 transitions. [2020-09-24 16:00:11,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-24 16:00:11,709 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:11,709 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] [2020-09-24 16:00:11,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 16:00:11,709 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:11,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:11,710 INFO L82 PathProgramCache]: Analyzing trace with hash 333657299, now seen corresponding path program 1 times [2020-09-24 16:00:11,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:11,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049388388] [2020-09-24 16:00:11,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:11,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:11,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:11,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:11,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:11,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-24 16:00:11,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:11,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:11,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:11,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:11,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-09-24 16:00:11,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:00:11,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:11,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:11,834 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:11,835 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:11,835 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:11,835 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:11,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:11,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:11,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:11,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:11,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:11,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:11,867 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 16:00:11,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049388388] [2020-09-24 16:00:11,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:11,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:11,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431737337] [2020-09-24 16:00:11,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:11,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:11,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:11,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:11,870 INFO L87 Difference]: Start difference. First operand 3417 states and 4098 transitions. Second operand 3 states. [2020-09-24 16:00:12,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:12,125 INFO L93 Difference]: Finished difference Result 7010 states and 8492 transitions. [2020-09-24 16:00:12,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:12,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-09-24 16:00:12,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:12,146 INFO L225 Difference]: With dead ends: 7010 [2020-09-24 16:00:12,146 INFO L226 Difference]: Without dead ends: 3754 [2020-09-24 16:00:12,155 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 16:00:12,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2020-09-24 16:00:12,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3630. [2020-09-24 16:00:12,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3630 states. [2020-09-24 16:00:12,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3630 states to 3630 states and 4326 transitions. [2020-09-24 16:00:12,290 INFO L78 Accepts]: Start accepts. Automaton has 3630 states and 4326 transitions. Word has length 225 [2020-09-24 16:00:12,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:12,291 INFO L479 AbstractCegarLoop]: Abstraction has 3630 states and 4326 transitions. [2020-09-24 16:00:12,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:12,291 INFO L276 IsEmpty]: Start isEmpty. Operand 3630 states and 4326 transitions. [2020-09-24 16:00:12,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-24 16:00:12,305 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:12,305 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] [2020-09-24 16:00:12,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 16:00:12,306 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:12,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:12,306 INFO L82 PathProgramCache]: Analyzing trace with hash 2067308732, now seen corresponding path program 1 times [2020-09-24 16:00:12,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:12,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204277628] [2020-09-24 16:00:12,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:12,340 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:12,341 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:12,341 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:12,341 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:12,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-24 16:00:12,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:12,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:12,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 214 [2020-09-24 16:00:12,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 16:00:12,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:12,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:12,393 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:12,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:12,394 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:12,394 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:12,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:12,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:12,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:12,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:12,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:12,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:12,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:12,439 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 16:00:12,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204277628] [2020-09-24 16:00:12,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:12,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:12,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855867375] [2020-09-24 16:00:12,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:12,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:12,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:12,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:12,442 INFO L87 Difference]: Start difference. First operand 3630 states and 4326 transitions. Second operand 3 states. [2020-09-24 16:00:12,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:12,590 INFO L93 Difference]: Finished difference Result 7099 states and 8504 transitions. [2020-09-24 16:00:12,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:12,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-09-24 16:00:12,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:12,616 INFO L225 Difference]: With dead ends: 7099 [2020-09-24 16:00:12,616 INFO L226 Difference]: Without dead ends: 4779 [2020-09-24 16:00:12,623 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 16:00:12,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4779 states. [2020-09-24 16:00:12,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4779 to 4779. [2020-09-24 16:00:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4779 states. [2020-09-24 16:00:12,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4779 states to 4779 states and 5705 transitions. [2020-09-24 16:00:12,794 INFO L78 Accepts]: Start accepts. Automaton has 4779 states and 5705 transitions. Word has length 240 [2020-09-24 16:00:12,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:12,794 INFO L479 AbstractCegarLoop]: Abstraction has 4779 states and 5705 transitions. [2020-09-24 16:00:12,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:12,794 INFO L276 IsEmpty]: Start isEmpty. Operand 4779 states and 5705 transitions. [2020-09-24 16:00:12,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-24 16:00:12,804 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:12,805 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] [2020-09-24 16:00:12,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 16:00:12,805 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:12,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:12,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1266606843, now seen corresponding path program 1 times [2020-09-24 16:00:12,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:12,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957418485] [2020-09-24 16:00:12,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:12,841 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 16:00:12,844 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:12,844 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:12,844 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:12,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-24 16:00:12,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:12,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [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: 2 [2020-09-24 16:00:12,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-09-24 16:00:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 16:00:12,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:12,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:12,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:12,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:12,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:12,893 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:12,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:12,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:12,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:12,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:12,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:12,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:12,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:12,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:12,931 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 16:00:12,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957418485] [2020-09-24 16:00:12,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:12,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:12,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156615501] [2020-09-24 16:00:12,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:12,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:12,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:12,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:12,934 INFO L87 Difference]: Start difference. First operand 4779 states and 5705 transitions. Second operand 3 states. [2020-09-24 16:00:13,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:13,167 INFO L93 Difference]: Finished difference Result 9821 states and 11850 transitions. [2020-09-24 16:00:13,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:13,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2020-09-24 16:00:13,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:13,191 INFO L225 Difference]: With dead ends: 9821 [2020-09-24 16:00:13,191 INFO L226 Difference]: Without dead ends: 5203 [2020-09-24 16:00:13,200 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 16:00:13,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5203 states. [2020-09-24 16:00:13,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5203 to 5095. [2020-09-24 16:00:13,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5095 states. [2020-09-24 16:00:13,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 6041 transitions. [2020-09-24 16:00:13,332 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 6041 transitions. Word has length 249 [2020-09-24 16:00:13,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:13,333 INFO L479 AbstractCegarLoop]: Abstraction has 5095 states and 6041 transitions. [2020-09-24 16:00:13,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:13,333 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 6041 transitions. [2020-09-24 16:00:13,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-09-24 16:00:13,344 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:13,345 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] [2020-09-24 16:00:13,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 16:00:13,345 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:13,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:13,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1378985242, now seen corresponding path program 1 times [2020-09-24 16:00:13,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:13,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058494189] [2020-09-24 16:00:13,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:13,385 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:13,385 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:13,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:13,386 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:13,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-24 16:00:13,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:13,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:00:13,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:13,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:00:13,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-09-24 16:00:13,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 16:00:13,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:13,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:13,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:13,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:13,488 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:13,488 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:13,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:13,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:13,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:13,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:13,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:13,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:13,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:13,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:13,603 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 16:00:13,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058494189] [2020-09-24 16:00:13,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:00:13,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-24 16:00:13,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704496725] [2020-09-24 16:00:13,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:00:13,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:13,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:00:13,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:00:13,606 INFO L87 Difference]: Start difference. First operand 5095 states and 6041 transitions. Second operand 5 states. [2020-09-24 16:00:13,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:13,857 INFO L93 Difference]: Finished difference Result 8135 states and 9660 transitions. [2020-09-24 16:00:13,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:00:13,858 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 268 [2020-09-24 16:00:13,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:13,875 INFO L225 Difference]: With dead ends: 8135 [2020-09-24 16:00:13,875 INFO L226 Difference]: Without dead ends: 5647 [2020-09-24 16:00:13,882 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 16:00:13,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5647 states. [2020-09-24 16:00:13,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5647 to 5176. [2020-09-24 16:00:13,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5176 states. [2020-09-24 16:00:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 6141 transitions. [2020-09-24 16:00:14,011 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 6141 transitions. Word has length 268 [2020-09-24 16:00:14,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:14,012 INFO L479 AbstractCegarLoop]: Abstraction has 5176 states and 6141 transitions. [2020-09-24 16:00:14,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:00:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 6141 transitions. [2020-09-24 16:00:14,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-24 16:00:14,023 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:14,024 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] [2020-09-24 16:00:14,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 16:00:14,024 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:14,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:14,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1330691005, now seen corresponding path program 2 times [2020-09-24 16:00:14,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:14,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820776576] [2020-09-24 16:00:14,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:14,063 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:14,064 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:14,064 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:14,064 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:14,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-24 16:00:14,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:14,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:14,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:14,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:00:14,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 204 [2020-09-24 16:00:14,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 16:00:14,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:14,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:14,127 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:14,128 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:14,128 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:14,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:14,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:14,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:14,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:14,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:14,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:14,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:14,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:14,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:14,178 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 16:00:14,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1820776576] [2020-09-24 16:00:14,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:14,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:00:14,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913634687] [2020-09-24 16:00:14,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:00:14,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:14,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:00:14,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:00:14,180 INFO L87 Difference]: Start difference. First operand 5176 states and 6141 transitions. Second operand 5 states. [2020-09-24 16:00:14,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:14,541 INFO L93 Difference]: Finished difference Result 8865 states and 10452 transitions. [2020-09-24 16:00:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:00:14,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2020-09-24 16:00:14,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:14,557 INFO L225 Difference]: With dead ends: 8865 [2020-09-24 16:00:14,557 INFO L226 Difference]: Without dead ends: 6296 [2020-09-24 16:00:14,565 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 16:00:14,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6296 states. [2020-09-24 16:00:14,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6296 to 5176. [2020-09-24 16:00:14,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5176 states. [2020-09-24 16:00:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 6141 transitions. [2020-09-24 16:00:14,774 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 6141 transitions. Word has length 271 [2020-09-24 16:00:14,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:14,775 INFO L479 AbstractCegarLoop]: Abstraction has 5176 states and 6141 transitions. [2020-09-24 16:00:14,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:00:14,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 6141 transitions. [2020-09-24 16:00:14,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-24 16:00:14,792 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:14,792 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] [2020-09-24 16:00:14,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 16:00:14,793 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:14,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:14,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1857770431, now seen corresponding path program 1 times [2020-09-24 16:00:14,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:14,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2135910791] [2020-09-24 16:00:14,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:14,833 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:14,833 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:14,833 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:14,833 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:14,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-24 16:00:14,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:14,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:14,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:00:14,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 217 [2020-09-24 16:00:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 16:00:14,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:14,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:14,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:14,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:14,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:14,887 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:14,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:14,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:14,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:14,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:14,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:14,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:14,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:14,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:14,938 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 16:00:14,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2135910791] [2020-09-24 16:00:14,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:14,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:00:14,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915807101] [2020-09-24 16:00:14,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:00:14,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:14,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:00:14,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:00:14,941 INFO L87 Difference]: Start difference. First operand 5176 states and 6141 transitions. Second operand 4 states. [2020-09-24 16:00:15,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:15,429 INFO L93 Difference]: Finished difference Result 13108 states and 15685 transitions. [2020-09-24 16:00:15,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:00:15,430 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2020-09-24 16:00:15,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:15,447 INFO L225 Difference]: With dead ends: 13108 [2020-09-24 16:00:15,448 INFO L226 Difference]: Without dead ends: 8093 [2020-09-24 16:00:15,459 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 16:00:15,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8093 states. [2020-09-24 16:00:15,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8093 to 5204. [2020-09-24 16:00:15,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5204 states. [2020-09-24 16:00:15,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 5204 states and 6141 transitions. [2020-09-24 16:00:15,581 INFO L78 Accepts]: Start accepts. Automaton has 5204 states and 6141 transitions. Word has length 271 [2020-09-24 16:00:15,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:15,582 INFO L479 AbstractCegarLoop]: Abstraction has 5204 states and 6141 transitions. [2020-09-24 16:00:15,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:00:15,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5204 states and 6141 transitions. [2020-09-24 16:00:15,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-24 16:00:15,593 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:15,594 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] [2020-09-24 16:00:15,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 16:00:15,594 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:15,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:15,595 INFO L82 PathProgramCache]: Analyzing trace with hash -417971039, now seen corresponding path program 3 times [2020-09-24 16:00:15,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:15,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031952983] [2020-09-24 16:00:15,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:15,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:15,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:15,636 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:15,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:15,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-24 16:00:15,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:15,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:00:15,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:00:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 16:00:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 16:00:15,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:15,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:15,692 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:15,692 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:15,692 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:15,693 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:15,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:15,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:15,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:15,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:15,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:15,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:15,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:15,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:15,811 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 16:00:15,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031952983] [2020-09-24 16:00:15,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:15,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:00:15,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021864765] [2020-09-24 16:00:15,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:00:15,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:15,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:00:15,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:00:15,814 INFO L87 Difference]: Start difference. First operand 5204 states and 6141 transitions. Second operand 5 states. [2020-09-24 16:00:16,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:16,189 INFO L93 Difference]: Finished difference Result 8525 states and 10004 transitions. [2020-09-24 16:00:16,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:00:16,190 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2020-09-24 16:00:16,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:16,202 INFO L225 Difference]: With dead ends: 8525 [2020-09-24 16:00:16,202 INFO L226 Difference]: Without dead ends: 5920 [2020-09-24 16:00:16,210 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 16:00:16,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5920 states. [2020-09-24 16:00:16,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5920 to 5284. [2020-09-24 16:00:16,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5284 states. [2020-09-24 16:00:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5284 states to 5284 states and 6229 transitions. [2020-09-24 16:00:16,332 INFO L78 Accepts]: Start accepts. Automaton has 5284 states and 6229 transitions. Word has length 271 [2020-09-24 16:00:16,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:16,332 INFO L479 AbstractCegarLoop]: Abstraction has 5284 states and 6229 transitions. [2020-09-24 16:00:16,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:00:16,332 INFO L276 IsEmpty]: Start isEmpty. Operand 5284 states and 6229 transitions. [2020-09-24 16:00:16,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-09-24 16:00:16,344 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:16,344 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] [2020-09-24 16:00:16,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-24 16:00:16,345 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:16,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:16,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1726538569, now seen corresponding path program 1 times [2020-09-24 16:00:16,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:16,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442446572] [2020-09-24 16:00:16,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:16,379 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:16,379 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:16,380 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:16,380 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:16,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-09-24 16:00:16,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:16,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:00:16,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:00:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-09-24 16:00:16,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:00:16,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:16,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:16,426 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:16,427 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:16,427 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:16,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:16,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:16,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:16,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:16,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:16,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:16,480 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 16:00:16,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442446572] [2020-09-24 16:00:16,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:00:16,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:00:16,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665071288] [2020-09-24 16:00:16,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:00:16,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:00:16,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:00:16,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:00:16,483 INFO L87 Difference]: Start difference. First operand 5284 states and 6229 transitions. Second operand 3 states. [2020-09-24 16:00:16,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:16,600 INFO L93 Difference]: Finished difference Result 9845 states and 11637 transitions. [2020-09-24 16:00:16,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:00:16,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2020-09-24 16:00:16,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:16,613 INFO L225 Difference]: With dead ends: 9845 [2020-09-24 16:00:16,613 INFO L226 Difference]: Without dead ends: 5997 [2020-09-24 16:00:16,622 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 16:00:16,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5997 states. [2020-09-24 16:00:16,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5997 to 5997. [2020-09-24 16:00:16,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5997 states. [2020-09-24 16:00:16,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5997 states to 5997 states and 7062 transitions. [2020-09-24 16:00:16,742 INFO L78 Accepts]: Start accepts. Automaton has 5997 states and 7062 transitions. Word has length 273 [2020-09-24 16:00:16,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:16,743 INFO L479 AbstractCegarLoop]: Abstraction has 5997 states and 7062 transitions. [2020-09-24 16:00:16,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:00:16,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5997 states and 7062 transitions. [2020-09-24 16:00:16,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-24 16:00:16,755 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:16,755 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:16,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-24 16:00:16,756 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:16,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:16,756 INFO L82 PathProgramCache]: Analyzing trace with hash 127538036, now seen corresponding path program 1 times [2020-09-24 16:00:16,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:16,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76090879] [2020-09-24 16:00:16,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 16:00:16,823 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 16:00:16,823 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 16:00:16,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-24 16:00:16,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:00:16 BoogieIcfgContainer [2020-09-24 16:00:16,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:00:16,889 INFO L168 Benchmark]: Toolchain (without parser) took 12610.10 ms. Allocated memory was 138.9 MB in the beginning and 643.8 MB in the end (delta: 504.9 MB). Free memory was 101.8 MB in the beginning and 161.4 MB in the end (delta: -59.7 MB). Peak memory consumption was 445.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:16,894 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 16:00:16,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.64 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 176.9 MB in the end (delta: -75.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:16,898 INFO L168 Benchmark]: Boogie Preprocessor took 84.77 ms. Allocated memory is still 201.3 MB. Free memory was 176.9 MB in the beginning and 174.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:16,899 INFO L168 Benchmark]: RCFGBuilder took 1069.32 ms. Allocated memory is still 201.3 MB. Free memory was 173.7 MB in the beginning and 109.8 MB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:16,901 INFO L168 Benchmark]: TraceAbstraction took 10875.49 ms. Allocated memory was 201.3 MB in the beginning and 643.8 MB in the end (delta: 442.5 MB). Free memory was 109.8 MB in the beginning and 161.4 MB in the end (delta: -51.7 MB). Peak memory consumption was 390.8 MB. Max. memory is 7.1 GB. [2020-09-24 16:00:16,909 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 568.64 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 101.1 MB in the beginning and 176.9 MB in the end (delta: -75.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.77 ms. Allocated memory is still 201.3 MB. Free memory was 176.9 MB in the beginning and 174.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1069.32 ms. Allocated memory is still 201.3 MB. Free memory was 173.7 MB in the beginning and 109.8 MB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10875.49 ms. Allocated memory was 201.3 MB in the beginning and 643.8 MB in the end (delta: 442.5 MB). Free memory was 109.8 MB in the beginning and 161.4 MB in the end (delta: -51.7 MB). Peak memory consumption was 390.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L553] int s ; [L557] s = 12292 [L558] CALL ssl3_connect(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L73] long __cil_tmp65 ; [L77] s__state = initial_state [L78] blastFlag = 0 [L79] tmp = __VERIFIER_nondet_int() [L80] cb = 0 [L81] ret = -1 [L82] skip = 0 [L83] tmp___0 = 0 [L84] COND TRUE s__info_callback != 0 [L85] cb = s__info_callback [L91] s__in_handshake ++ [L92] COND FALSE !(tmp___1 - 12288) [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L203] s__new_session = 1 [L204] s__state = 4096 [L205] s__ctx__stats__sess_connect_renegotiate ++ [L210] s__server = 0 [L211] COND TRUE cb != 0 [L215] __cil_tmp55 = s__version - 65280 [L216] COND FALSE !(__cil_tmp55 != 768) [L221] s__type = 4096 [L222] COND FALSE !(s__init_buf___0 == 0) [L234] COND FALSE !(! tmp___4) [L238] COND FALSE !(! tmp___5) [L242] s__state = 4368 [L243] s__ctx__stats__sess_connect ++ [L244] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L248] s__shutdown = 0 [L249] ret = __VERIFIER_nondet_int() [L250] COND TRUE blastFlag == 0 [L251] blastFlag = 1 [L257] COND FALSE !(ret <= 0) [L260] s__state = 4384 [L261] s__init_num = 0 [L262] COND TRUE s__bbio != s__wbio [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L268] ret = __VERIFIER_nondet_int() [L269] COND TRUE blastFlag == 1 [L270] blastFlag = 2 [L272] COND FALSE !(ret <= 0) [L275] COND FALSE !(\read(s__hit)) [L278] s__state = 4400 [L280] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L285] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L286] COND FALSE !(__cil_tmp56 - 256UL) [L289] ret = __VERIFIER_nondet_int() [L290] COND TRUE blastFlag == 2 [L291] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 385 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.7s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8532 SDtfs, 4982 SDslu, 8750 SDs, 0 SdLazy, 1910 SolverSat, 229 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s 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=5997occurred 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: 1.8s AutomataMinimizationTime, 19 MinimizatonAttempts, 5643 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 4553 NumberOfCodeBlocks, 4553 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 4260 ConstructedInterpolants, 0 QuantifiedInterpolants, 1295721 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...