/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 01:51:48,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 01:51:48,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 01:51:48,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 01:51:48,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 01:51:48,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 01:51:48,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 01:51:48,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 01:51:48,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 01:51:48,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 01:51:48,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 01:51:48,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-19 01:51:48,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-19 01:51:48,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-19 01:51:48,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-19 01:51:48,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-19 01:51:48,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-19 01:51:48,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-19 01:51:48,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-19 01:51:48,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-19 01:51:48,842 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-19 01:51:48,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-19 01:51:48,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-19 01:51:48,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-19 01:51:48,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-19 01:51:48,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-19 01:51:48,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-19 01:51:48,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-19 01:51:48,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-19 01:51:48,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-19 01:51:48,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-19 01:51:48,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 01:51:48,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 01:51:48,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 01:51:48,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-19 01:51:48,888 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 01:51:48,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 01:51:48,890 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-19 01:51:48,890 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-19 01:51:48,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-19 01:51:48,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-19 01:51:48,891 INFO L138 SettingsManager]: * Use SBE=true [2022-03-19 01:51:48,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 01:51:48,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 01:51:48,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 01:51:48,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 01:51:48,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 01:51:48,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 01:51:48,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 01:51:48,893 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 01:51:48,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 01:51:48,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 01:51:48,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 01:51:48,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 01:51:48,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 01:51:48,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 01:51:48,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-19 01:51:48,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-19 01:51:48,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-19 01:51:48,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-19 01:51:48,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 01:51:48,895 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-19 01:51:48,895 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-19 01:51:48,896 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-19 01:51:48,896 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 01:51:49,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 01:51:49,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 01:51:49,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 01:51:49,127 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 01:51:49,131 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 01:51:49,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-2.c [2022-03-19 01:51:49,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0534dbae8/b60641f1e144461d882072777d30a6b9/FLAGe6cb266e7 [2022-03-19 01:51:49,658 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 01:51:49,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-2.c [2022-03-19 01:51:49,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0534dbae8/b60641f1e144461d882072777d30a6b9/FLAGe6cb266e7 [2022-03-19 01:51:49,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0534dbae8/b60641f1e144461d882072777d30a6b9 [2022-03-19 01:51:49,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 01:51:49,977 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-19 01:51:49,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 01:51:49,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 01:51:49,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 01:51:49,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:51:49" (1/1) ... [2022-03-19 01:51:49,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a2ef1ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:49, skipping insertion in model container [2022-03-19 01:51:49,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:51:49" (1/1) ... [2022-03-19 01:51:49,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 01:51:50,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 01:51:50,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2022-03-19 01:51:50,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 01:51:50,452 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 01:51:50,533 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2022-03-19 01:51:50,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 01:51:50,561 INFO L208 MainTranslator]: Completed translation [2022-03-19 01:51:50,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:50 WrapperNode [2022-03-19 01:51:50,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 01:51:50,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 01:51:50,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 01:51:50,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 01:51:50,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:50" (1/1) ... [2022-03-19 01:51:50,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:50" (1/1) ... [2022-03-19 01:51:50,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:50" (1/1) ... [2022-03-19 01:51:50,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:50" (1/1) ... [2022-03-19 01:51:50,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:50" (1/1) ... [2022-03-19 01:51:50,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:50" (1/1) ... [2022-03-19 01:51:50,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:50" (1/1) ... [2022-03-19 01:51:50,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 01:51:50,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 01:51:50,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 01:51:50,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 01:51:50,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:50" (1/1) ... [2022-03-19 01:51:50,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 01:51:50,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 01:51:50,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-19 01:51:50,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-19 01:51:50,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 01:51:50,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 01:51:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 01:51:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-19 01:51:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-19 01:51:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 01:51:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-19 01:51:50,782 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-19 01:51:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-19 01:51:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-19 01:51:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 01:51:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 01:51:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 01:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 01:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-19 01:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-19 01:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 01:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-19 01:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-19 01:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-19 01:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-19 01:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-19 01:51:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-19 01:51:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-19 01:51:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-19 01:51:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-19 01:51:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 01:51:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-19 01:51:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 01:51:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-19 01:51:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 01:51:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-19 01:51:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-19 01:51:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 01:51:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 01:51:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 01:51:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-19 01:51:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-19 01:51:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-19 01:51:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-19 01:51:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 01:51:50,965 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 01:51:50,966 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 01:51:51,905 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-19 01:51:52,463 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-19 01:51:52,463 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-19 01:51:52,475 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 01:51:52,485 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 01:51:52,485 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 01:51:52,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:51:52 BoogieIcfgContainer [2022-03-19 01:51:52,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 01:51:52,488 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-19 01:51:52,488 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-19 01:51:52,490 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-19 01:51:52,493 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:51:52" (1/1) ... [2022-03-19 01:51:52,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 19.03 01:51:52 BasicIcfg [2022-03-19 01:51:52,560 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-19 01:51:52,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 01:51:52,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 01:51:52,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 01:51:52,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 01:51:49" (1/4) ... [2022-03-19 01:51:52,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3295cf32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:51:52, skipping insertion in model container [2022-03-19 01:51:52,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:50" (2/4) ... [2022-03-19 01:51:52,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3295cf32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:51:52, skipping insertion in model container [2022-03-19 01:51:52,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:51:52" (3/4) ... [2022-03-19 01:51:52,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3295cf32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 01:51:52, skipping insertion in model container [2022-03-19 01:51:52,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 19.03 01:51:52" (4/4) ... [2022-03-19 01:51:52,569 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.07.i.cil-2.cqvasr [2022-03-19 01:51:52,574 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-19 01:51:52,574 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 01:51:52,629 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 01:51:52,637 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-19 01:51:52,637 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 01:51:52,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-19 01:51:52,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-19 01:51:52,669 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:51:52,669 INFO L500 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] [2022-03-19 01:51:52,670 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:51:52,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:51:52,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1099342272, now seen corresponding path program 1 times [2022-03-19 01:51:52,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:51:52,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844337411] [2022-03-19 01:51:52,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:51:52,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:51:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:53,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:51:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:51:53,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:51:53,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844337411] [2022-03-19 01:51:53,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844337411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:51:53,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:51:53,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:51:53,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556281436] [2022-03-19 01:51:53,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:51:53,236 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:51:53,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:51:53,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:51:53,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:51:53,268 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:56,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:57,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:51:57,571 INFO L93 Difference]: Finished difference Result 428 states and 723 transitions. [2022-03-19 01:51:57,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:51:57,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-19 01:51:57,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:51:57,587 INFO L225 Difference]: With dead ends: 428 [2022-03-19 01:51:57,587 INFO L226 Difference]: Without dead ends: 259 [2022-03-19 01:51:57,590 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:51:57,593 INFO L912 BasicCegarLoop]: 157 mSDtfsCounter, 163 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-19 01:51:57,593 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 532 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-19 01:51:57,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-19 01:51:57,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 170. [2022-03-19 01:51:57,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:57,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-03-19 01:51:57,637 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-03-19 01:51:57,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:51:57,637 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-03-19 01:51:57,638 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:57,638 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-03-19 01:51:57,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-19 01:51:57,639 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:51:57,640 INFO L500 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] [2022-03-19 01:51:57,640 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 01:51:57,640 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:51:57,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:51:57,641 INFO L85 PathProgramCache]: Analyzing trace with hash -654778345, now seen corresponding path program 1 times [2022-03-19 01:51:57,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:51:57,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714480519] [2022-03-19 01:51:57,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:51:57,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:51:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:57,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:51:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:51:57,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:51:57,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714480519] [2022-03-19 01:51:57,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714480519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:51:57,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:51:57,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:51:57,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167206650] [2022-03-19 01:51:57,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:51:57,790 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:51:57,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:51:57,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:51:57,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:51:57,791 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:58,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:00,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:02,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:02,273 INFO L93 Difference]: Finished difference Result 442 states and 693 transitions. [2022-03-19 01:52:02,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:02,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-03-19 01:52:02,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:02,276 INFO L225 Difference]: With dead ends: 442 [2022-03-19 01:52:02,276 INFO L226 Difference]: Without dead ends: 287 [2022-03-19 01:52:02,277 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:02,278 INFO L912 BasicCegarLoop]: 117 mSDtfsCounter, 130 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:02,279 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-19 01:52:02,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-19 01:52:02,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 199. [2022-03-19 01:52:02,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:02,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-03-19 01:52:02,303 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-03-19 01:52:02,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:02,304 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-03-19 01:52:02,304 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:02,304 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-03-19 01:52:02,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-19 01:52:02,305 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:02,306 INFO L500 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] [2022-03-19 01:52:02,306 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 01:52:02,306 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:02,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:02,307 INFO L85 PathProgramCache]: Analyzing trace with hash 2114415540, now seen corresponding path program 1 times [2022-03-19 01:52:02,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:02,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147561125] [2022-03-19 01:52:02,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:02,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:02,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:02,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:52:02,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:02,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147561125] [2022-03-19 01:52:02,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147561125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:02,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:02,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:02,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750083516] [2022-03-19 01:52:02,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:02,502 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:02,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:02,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:02,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:02,503 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:03,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:04,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:06,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:07,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:08,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:08,128 INFO L93 Difference]: Finished difference Result 501 states and 796 transitions. [2022-03-19 01:52:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:08,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-03-19 01:52:08,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:08,131 INFO L225 Difference]: With dead ends: 501 [2022-03-19 01:52:08,131 INFO L226 Difference]: Without dead ends: 317 [2022-03-19 01:52:08,132 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:08,133 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 119 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:08,134 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 344 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-03-19 01:52:08,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-19 01:52:08,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 239. [2022-03-19 01:52:08,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:08,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-03-19 01:52:08,145 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 48 [2022-03-19 01:52:08,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:08,146 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-03-19 01:52:08,146 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:08,146 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-03-19 01:52:08,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-19 01:52:08,148 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:08,148 INFO L500 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] [2022-03-19 01:52:08,148 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 01:52:08,148 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:08,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:08,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1123324387, now seen corresponding path program 1 times [2022-03-19 01:52:08,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:08,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783919768] [2022-03-19 01:52:08,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:08,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:08,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:52:08,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:08,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783919768] [2022-03-19 01:52:08,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783919768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:08,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:08,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:08,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154167188] [2022-03-19 01:52:08,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:08,297 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:08,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:08,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:08,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:08,298 INFO L87 Difference]: Start difference. First operand 239 states and 388 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:11,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:13,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:13,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:13,783 INFO L93 Difference]: Finished difference Result 551 states and 886 transitions. [2022-03-19 01:52:13,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:13,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-19 01:52:13,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:13,786 INFO L225 Difference]: With dead ends: 551 [2022-03-19 01:52:13,786 INFO L226 Difference]: Without dead ends: 327 [2022-03-19 01:52:13,787 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:13,788 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 118 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:13,788 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 356 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-19 01:52:13,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-03-19 01:52:13,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 250. [2022-03-19 01:52:13,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.653061224489796) internal successors, (405), 245 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:13,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 409 transitions. [2022-03-19 01:52:13,798 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 409 transitions. Word has length 49 [2022-03-19 01:52:13,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:13,798 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 409 transitions. [2022-03-19 01:52:13,798 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:13,798 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 409 transitions. [2022-03-19 01:52:13,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-19 01:52:13,800 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:13,801 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:13,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-19 01:52:13,801 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:13,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:13,801 INFO L85 PathProgramCache]: Analyzing trace with hash -41728279, now seen corresponding path program 1 times [2022-03-19 01:52:13,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:13,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019287349] [2022-03-19 01:52:13,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:13,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:13,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:13,921 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-19 01:52:13,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:13,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019287349] [2022-03-19 01:52:13,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019287349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:13,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:13,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:13,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999322045] [2022-03-19 01:52:13,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:13,922 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:13,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:13,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:13,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:13,923 INFO L87 Difference]: Start difference. First operand 250 states and 409 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:15,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:17,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:19,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:20,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:20,108 INFO L93 Difference]: Finished difference Result 513 states and 840 transitions. [2022-03-19 01:52:20,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:20,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-19 01:52:20,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:20,110 INFO L225 Difference]: With dead ends: 513 [2022-03-19 01:52:20,110 INFO L226 Difference]: Without dead ends: 278 [2022-03-19 01:52:20,111 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:20,112 INFO L912 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:20,112 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-19 01:52:20,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-19 01:52:20,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-19 01:52:20,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65625) internal successors, (424), 256 states have internal predecessors, (424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:20,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 428 transitions. [2022-03-19 01:52:20,120 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 428 transitions. Word has length 70 [2022-03-19 01:52:20,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:20,120 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 428 transitions. [2022-03-19 01:52:20,121 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:20,121 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 428 transitions. [2022-03-19 01:52:20,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-19 01:52:20,123 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:20,123 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:20,123 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-19 01:52:20,123 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:20,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:20,124 INFO L85 PathProgramCache]: Analyzing trace with hash 596266299, now seen corresponding path program 1 times [2022-03-19 01:52:20,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:20,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189755591] [2022-03-19 01:52:20,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:20,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:20,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:20,269 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-19 01:52:20,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:20,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189755591] [2022-03-19 01:52:20,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189755591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:20,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:20,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:20,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406126622] [2022-03-19 01:52:20,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:20,270 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:20,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:20,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:20,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:20,271 INFO L87 Difference]: Start difference. First operand 261 states and 428 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:22,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:25,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:25,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:25,588 INFO L93 Difference]: Finished difference Result 513 states and 839 transitions. [2022-03-19 01:52:25,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:25,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-19 01:52:25,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:25,590 INFO L225 Difference]: With dead ends: 513 [2022-03-19 01:52:25,590 INFO L226 Difference]: Without dead ends: 278 [2022-03-19 01:52:25,590 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:25,591 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:25,592 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-19 01:52:25,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-19 01:52:25,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-19 01:52:25,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65234375) internal successors, (423), 256 states have internal predecessors, (423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:25,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 427 transitions. [2022-03-19 01:52:25,601 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 427 transitions. Word has length 83 [2022-03-19 01:52:25,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:25,602 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 427 transitions. [2022-03-19 01:52:25,602 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:25,602 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 427 transitions. [2022-03-19 01:52:25,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-19 01:52:25,603 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:25,604 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:25,604 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-19 01:52:25,604 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:25,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:25,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1699841181, now seen corresponding path program 1 times [2022-03-19 01:52:25,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:25,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612909595] [2022-03-19 01:52:25,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:25,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:25,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:25,764 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-19 01:52:25,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:25,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612909595] [2022-03-19 01:52:25,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612909595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:25,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:25,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:25,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847791662] [2022-03-19 01:52:25,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:25,765 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:25,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:25,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:25,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:25,766 INFO L87 Difference]: Start difference. First operand 261 states and 427 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:27,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:30,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:31,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:32,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:32,121 INFO L93 Difference]: Finished difference Result 572 states and 923 transitions. [2022-03-19 01:52:32,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:32,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-19 01:52:32,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:32,123 INFO L225 Difference]: With dead ends: 572 [2022-03-19 01:52:32,123 INFO L226 Difference]: Without dead ends: 337 [2022-03-19 01:52:32,124 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:32,125 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 146 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:32,125 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-19 01:52:32,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-03-19 01:52:32,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 261. [2022-03-19 01:52:32,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.63671875) internal successors, (419), 256 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:32,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 423 transitions. [2022-03-19 01:52:32,133 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 423 transitions. Word has length 84 [2022-03-19 01:52:32,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:32,133 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 423 transitions. [2022-03-19 01:52:32,133 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:32,133 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 423 transitions. [2022-03-19 01:52:32,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-19 01:52:32,134 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:32,134 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:32,134 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-19 01:52:32,134 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:32,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:32,135 INFO L85 PathProgramCache]: Analyzing trace with hash 316535683, now seen corresponding path program 1 times [2022-03-19 01:52:32,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:32,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023043853] [2022-03-19 01:52:32,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:32,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:32,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:32,247 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-19 01:52:32,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:32,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023043853] [2022-03-19 01:52:32,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023043853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:32,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:32,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:32,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399622685] [2022-03-19 01:52:32,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:32,248 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:32,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:32,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:32,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:32,249 INFO L87 Difference]: Start difference. First operand 261 states and 423 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:33,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:35,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:37,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:38,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:38,368 INFO L93 Difference]: Finished difference Result 512 states and 830 transitions. [2022-03-19 01:52:38,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:38,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-19 01:52:38,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:38,371 INFO L225 Difference]: With dead ends: 512 [2022-03-19 01:52:38,371 INFO L226 Difference]: Without dead ends: 277 [2022-03-19 01:52:38,371 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:38,372 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:38,372 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-19 01:52:38,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-03-19 01:52:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 261. [2022-03-19 01:52:38,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6328125) internal successors, (418), 256 states have internal predecessors, (418), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:38,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 422 transitions. [2022-03-19 01:52:38,379 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 422 transitions. Word has length 84 [2022-03-19 01:52:38,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:38,379 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 422 transitions. [2022-03-19 01:52:38,379 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:38,380 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 422 transitions. [2022-03-19 01:52:38,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-19 01:52:38,380 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:38,380 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:38,381 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-19 01:52:38,381 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:38,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:38,381 INFO L85 PathProgramCache]: Analyzing trace with hash 901926851, now seen corresponding path program 1 times [2022-03-19 01:52:38,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:38,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770682227] [2022-03-19 01:52:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:38,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:38,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-19 01:52:38,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:38,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770682227] [2022-03-19 01:52:38,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770682227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:38,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:38,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:38,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122713675] [2022-03-19 01:52:38,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:38,531 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:38,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:38,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:38,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:38,532 INFO L87 Difference]: Start difference. First operand 261 states and 422 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:40,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:42,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:44,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:45,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:45,241 INFO L93 Difference]: Finished difference Result 572 states and 915 transitions. [2022-03-19 01:52:45,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:45,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-19 01:52:45,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:45,244 INFO L225 Difference]: With dead ends: 572 [2022-03-19 01:52:45,244 INFO L226 Difference]: Without dead ends: 337 [2022-03-19 01:52:45,244 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:45,245 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 139 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:45,245 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-03-19 01:52:45,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-03-19 01:52:45,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 261. [2022-03-19 01:52:45,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6171875) internal successors, (414), 256 states have internal predecessors, (414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:45,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 418 transitions. [2022-03-19 01:52:45,253 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 418 transitions. Word has length 84 [2022-03-19 01:52:45,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:45,253 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 418 transitions. [2022-03-19 01:52:45,253 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:45,253 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 418 transitions. [2022-03-19 01:52:45,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-19 01:52:45,254 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:45,254 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:45,254 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-19 01:52:45,255 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:45,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:45,255 INFO L85 PathProgramCache]: Analyzing trace with hash -2008957213, now seen corresponding path program 1 times [2022-03-19 01:52:45,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:45,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449006121] [2022-03-19 01:52:45,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:45,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:45,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:45,364 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-19 01:52:45,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:45,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449006121] [2022-03-19 01:52:45,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449006121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:45,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:45,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:45,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384615243] [2022-03-19 01:52:45,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:45,365 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:45,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:45,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:45,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:45,366 INFO L87 Difference]: Start difference. First operand 261 states and 418 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:46,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:48,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:50,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:50,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:50,920 INFO L93 Difference]: Finished difference Result 571 states and 907 transitions. [2022-03-19 01:52:50,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:50,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-19 01:52:50,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:50,922 INFO L225 Difference]: With dead ends: 571 [2022-03-19 01:52:50,922 INFO L226 Difference]: Without dead ends: 336 [2022-03-19 01:52:50,923 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:50,924 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 137 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:50,924 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-03-19 01:52:50,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-03-19 01:52:50,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 261. [2022-03-19 01:52:50,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-03-19 01:52:50,931 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 84 [2022-03-19 01:52:50,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:50,931 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-03-19 01:52:50,931 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:50,931 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-03-19 01:52:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-19 01:52:50,932 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:50,932 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:50,933 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-19 01:52:50,933 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:50,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:50,933 INFO L85 PathProgramCache]: Analyzing trace with hash -94890821, now seen corresponding path program 1 times [2022-03-19 01:52:50,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:50,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897096584] [2022-03-19 01:52:50,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:50,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:51,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-19 01:52:51,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:51,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897096584] [2022-03-19 01:52:51,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897096584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:51,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:51,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:51,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431026768] [2022-03-19 01:52:51,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:51,056 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:51,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:51,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:51,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:51,057 INFO L87 Difference]: Start difference. First operand 261 states and 414 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:52,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:54,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:56,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:58,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:58,033 INFO L93 Difference]: Finished difference Result 571 states and 900 transitions. [2022-03-19 01:52:58,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:58,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-19 01:52:58,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:58,035 INFO L225 Difference]: With dead ends: 571 [2022-03-19 01:52:58,035 INFO L226 Difference]: Without dead ends: 336 [2022-03-19 01:52:58,035 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:58,036 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 141 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:58,036 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-19 01:52:58,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-03-19 01:52:58,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 261. [2022-03-19 01:52:58,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5859375) internal successors, (406), 256 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:58,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 410 transitions. [2022-03-19 01:52:58,045 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 410 transitions. Word has length 85 [2022-03-19 01:52:58,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:58,046 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 410 transitions. [2022-03-19 01:52:58,046 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:58,047 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 410 transitions. [2022-03-19 01:52:58,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-19 01:52:58,047 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:58,048 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:58,048 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-19 01:52:58,048 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:58,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:58,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1898449287, now seen corresponding path program 1 times [2022-03-19 01:52:58,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:58,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260170764] [2022-03-19 01:52:58,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:58,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:58,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:58,172 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-19 01:52:58,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:58,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260170764] [2022-03-19 01:52:58,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260170764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:58,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:58,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:58,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533153566] [2022-03-19 01:52:58,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:58,173 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:58,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:58,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:58,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:58,174 INFO L87 Difference]: Start difference. First operand 261 states and 410 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:59,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:01,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:03,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:05,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:06,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:06,117 INFO L93 Difference]: Finished difference Result 571 states and 893 transitions. [2022-03-19 01:53:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:06,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-03-19 01:53:06,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:06,119 INFO L225 Difference]: With dead ends: 571 [2022-03-19 01:53:06,119 INFO L226 Difference]: Without dead ends: 336 [2022-03-19 01:53:06,119 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:06,120 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 139 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 60 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:06,120 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 477 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-03-19 01:53:06,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-03-19 01:53:06,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 261. [2022-03-19 01:53:06,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5703125) internal successors, (402), 256 states have internal predecessors, (402), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:06,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 406 transitions. [2022-03-19 01:53:06,127 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 406 transitions. Word has length 86 [2022-03-19 01:53:06,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:06,128 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 406 transitions. [2022-03-19 01:53:06,128 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:06,128 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 406 transitions. [2022-03-19 01:53:06,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-19 01:53:06,129 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:06,129 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:53:06,129 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-19 01:53:06,129 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:06,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:06,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1738219902, now seen corresponding path program 1 times [2022-03-19 01:53:06,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:06,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617886992] [2022-03-19 01:53:06,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:06,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:06,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:06,237 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-19 01:53:06,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:06,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617886992] [2022-03-19 01:53:06,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617886992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:06,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:06,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:06,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745301456] [2022-03-19 01:53:06,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:06,239 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:06,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:06,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:06,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:06,239 INFO L87 Difference]: Start difference. First operand 261 states and 406 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:07,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:09,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:11,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:11,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:11,881 INFO L93 Difference]: Finished difference Result 499 states and 785 transitions. [2022-03-19 01:53:11,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:11,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-19 01:53:11,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:11,882 INFO L225 Difference]: With dead ends: 499 [2022-03-19 01:53:11,882 INFO L226 Difference]: Without dead ends: 264 [2022-03-19 01:53:11,883 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:11,883 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:11,883 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-19 01:53:11,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-03-19 01:53:11,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2022-03-19 01:53:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.56640625) internal successors, (401), 256 states have internal predecessors, (401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:11,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 405 transitions. [2022-03-19 01:53:11,890 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 405 transitions. Word has length 87 [2022-03-19 01:53:11,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:11,890 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 405 transitions. [2022-03-19 01:53:11,890 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:11,890 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 405 transitions. [2022-03-19 01:53:11,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-19 01:53:11,891 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:11,891 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-19 01:53:11,891 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-19 01:53:11,892 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:11,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:11,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1337552211, now seen corresponding path program 1 times [2022-03-19 01:53:11,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:11,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769922555] [2022-03-19 01:53:11,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:11,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:12,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:12,010 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-19 01:53:12,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:12,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769922555] [2022-03-19 01:53:12,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769922555] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:12,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:12,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:12,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226347742] [2022-03-19 01:53:12,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:12,011 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:12,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:12,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:12,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:12,012 INFO L87 Difference]: Start difference. First operand 261 states and 405 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:13,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:15,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:16,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:16,419 INFO L93 Difference]: Finished difference Result 537 states and 839 transitions. [2022-03-19 01:53:16,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:16,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-19 01:53:16,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:16,421 INFO L225 Difference]: With dead ends: 537 [2022-03-19 01:53:16,421 INFO L226 Difference]: Without dead ends: 302 [2022-03-19 01:53:16,421 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:16,422 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 29 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:16,422 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 507 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-19 01:53:16,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-03-19 01:53:16,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 283. [2022-03-19 01:53:16,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5611510791366907) internal successors, (434), 278 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:16,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 438 transitions. [2022-03-19 01:53:16,433 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 438 transitions. Word has length 87 [2022-03-19 01:53:16,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:16,433 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 438 transitions. [2022-03-19 01:53:16,433 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:16,433 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 438 transitions. [2022-03-19 01:53:16,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-19 01:53:16,434 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:16,434 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-03-19 01:53:16,435 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-19 01:53:16,435 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:16,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:16,435 INFO L85 PathProgramCache]: Analyzing trace with hash 763838455, now seen corresponding path program 1 times [2022-03-19 01:53:16,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:16,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459056090] [2022-03-19 01:53:16,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:16,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:16,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:16,547 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-19 01:53:16,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:16,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459056090] [2022-03-19 01:53:16,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459056090] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:16,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:16,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:16,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804148372] [2022-03-19 01:53:16,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:16,549 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:16,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:16,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:16,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:16,549 INFO L87 Difference]: Start difference. First operand 283 states and 438 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:18,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:20,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:22,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:23,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:23,336 INFO L93 Difference]: Finished difference Result 557 states and 869 transitions. [2022-03-19 01:53:23,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:23,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-03-19 01:53:23,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:23,337 INFO L225 Difference]: With dead ends: 557 [2022-03-19 01:53:23,337 INFO L226 Difference]: Without dead ends: 300 [2022-03-19 01:53:23,338 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:23,338 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 34 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:23,339 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 511 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 388 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-03-19 01:53:23,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-03-19 01:53:23,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 283. [2022-03-19 01:53:23,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5575539568345325) internal successors, (433), 278 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:23,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 437 transitions. [2022-03-19 01:53:23,347 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 437 transitions. Word has length 100 [2022-03-19 01:53:23,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:23,348 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 437 transitions. [2022-03-19 01:53:23,348 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:23,348 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 437 transitions. [2022-03-19 01:53:23,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-19 01:53:23,349 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:23,349 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-19 01:53:23,349 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-19 01:53:23,349 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:23,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:23,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1216305223, now seen corresponding path program 1 times [2022-03-19 01:53:23,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:23,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271757916] [2022-03-19 01:53:23,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:23,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:23,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:23,488 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-19 01:53:23,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:23,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271757916] [2022-03-19 01:53:23,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271757916] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:23,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:23,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:23,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324759338] [2022-03-19 01:53:23,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:23,489 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:23,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:23,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:23,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:23,490 INFO L87 Difference]: Start difference. First operand 283 states and 437 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:24,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:25,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:28,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:28,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:28,796 INFO L93 Difference]: Finished difference Result 568 states and 883 transitions. [2022-03-19 01:53:28,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:28,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2022-03-19 01:53:28,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:28,798 INFO L225 Difference]: With dead ends: 568 [2022-03-19 01:53:28,798 INFO L226 Difference]: Without dead ends: 311 [2022-03-19 01:53:28,799 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:28,799 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 19 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:28,800 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 568 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 392 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-19 01:53:28,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-03-19 01:53:28,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 299. [2022-03-19 01:53:28,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5510204081632653) internal successors, (456), 294 states have internal predecessors, (456), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:28,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 460 transitions. [2022-03-19 01:53:28,807 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 460 transitions. Word has length 101 [2022-03-19 01:53:28,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:28,807 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 460 transitions. [2022-03-19 01:53:28,808 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:28,808 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 460 transitions. [2022-03-19 01:53:28,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-19 01:53:28,809 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:28,809 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-19 01:53:28,809 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-19 01:53:28,809 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:28,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:28,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1996120494, now seen corresponding path program 1 times [2022-03-19 01:53:28,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:28,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328723150] [2022-03-19 01:53:28,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:28,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:28,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:28,931 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-19 01:53:28,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:28,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328723150] [2022-03-19 01:53:28,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328723150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:28,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:28,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:28,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872293119] [2022-03-19 01:53:28,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:28,934 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:28,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:28,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:28,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:28,935 INFO L87 Difference]: Start difference. First operand 299 states and 460 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:30,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:31,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:31,412 INFO L93 Difference]: Finished difference Result 647 states and 995 transitions. [2022-03-19 01:53:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:31,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2022-03-19 01:53:31,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:31,414 INFO L225 Difference]: With dead ends: 647 [2022-03-19 01:53:31,414 INFO L226 Difference]: Without dead ends: 374 [2022-03-19 01:53:31,415 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:31,415 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 141 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:31,416 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 360 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 01:53:31,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-03-19 01:53:31,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 299. [2022-03-19 01:53:31,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.534013605442177) internal successors, (451), 294 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:31,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 455 transitions. [2022-03-19 01:53:31,423 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 455 transitions. Word has length 102 [2022-03-19 01:53:31,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:31,423 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 455 transitions. [2022-03-19 01:53:31,424 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:31,424 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 455 transitions. [2022-03-19 01:53:31,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-03-19 01:53:31,425 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:31,425 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-03-19 01:53:31,425 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-19 01:53:31,425 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:31,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:31,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1450991295, now seen corresponding path program 1 times [2022-03-19 01:53:31,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:31,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038792611] [2022-03-19 01:53:31,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:31,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:31,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:31,580 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-19 01:53:31,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:31,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038792611] [2022-03-19 01:53:31,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038792611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:31,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:31,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:31,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491101107] [2022-03-19 01:53:31,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:31,581 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:31,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:31,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:31,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:31,582 INFO L87 Difference]: Start difference. First operand 299 states and 455 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:33,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:34,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:34,085 INFO L93 Difference]: Finished difference Result 637 states and 972 transitions. [2022-03-19 01:53:34,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:34,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2022-03-19 01:53:34,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:34,087 INFO L225 Difference]: With dead ends: 637 [2022-03-19 01:53:34,087 INFO L226 Difference]: Without dead ends: 364 [2022-03-19 01:53:34,088 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:34,088 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 130 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:34,088 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 374 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 01:53:34,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-03-19 01:53:34,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 299. [2022-03-19 01:53:34,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5170068027210883) internal successors, (446), 294 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:34,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 450 transitions. [2022-03-19 01:53:34,096 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 450 transitions. Word has length 105 [2022-03-19 01:53:34,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:34,096 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 450 transitions. [2022-03-19 01:53:34,096 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:34,096 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 450 transitions. [2022-03-19 01:53:34,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-19 01:53:34,097 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:34,098 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:53:34,098 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-19 01:53:34,098 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:34,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:34,098 INFO L85 PathProgramCache]: Analyzing trace with hash 172926318, now seen corresponding path program 1 times [2022-03-19 01:53:34,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:34,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371467314] [2022-03-19 01:53:34,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:34,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:34,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:34,218 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:53:34,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:34,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371467314] [2022-03-19 01:53:34,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371467314] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:34,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:34,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:34,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041624453] [2022-03-19 01:53:34,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:34,219 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:34,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:34,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:34,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:34,220 INFO L87 Difference]: Start difference. First operand 299 states and 450 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:35,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:37,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:39,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:41,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:41,017 INFO L93 Difference]: Finished difference Result 651 states and 985 transitions. [2022-03-19 01:53:41,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:41,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-19 01:53:41,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:41,020 INFO L225 Difference]: With dead ends: 651 [2022-03-19 01:53:41,020 INFO L226 Difference]: Without dead ends: 378 [2022-03-19 01:53:41,020 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:41,021 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 72 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:41,021 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 503 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 486 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-19 01:53:41,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-03-19 01:53:41,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 327. [2022-03-19 01:53:41,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.5124223602484472) internal successors, (487), 322 states have internal predecessors, (487), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:41,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 491 transitions. [2022-03-19 01:53:41,029 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 491 transitions. Word has length 109 [2022-03-19 01:53:41,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:41,029 INFO L478 AbstractCegarLoop]: Abstraction has 327 states and 491 transitions. [2022-03-19 01:53:41,029 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:41,030 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 491 transitions. [2022-03-19 01:53:41,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-19 01:53:41,031 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:41,031 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:53:41,031 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-19 01:53:41,031 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:41,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:41,032 INFO L85 PathProgramCache]: Analyzing trace with hash -993770001, now seen corresponding path program 1 times [2022-03-19 01:53:41,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:41,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910153111] [2022-03-19 01:53:41,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:41,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:41,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:41,163 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:53:41,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:41,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910153111] [2022-03-19 01:53:41,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910153111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:41,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:41,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:41,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326925086] [2022-03-19 01:53:41,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:41,165 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:41,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:41,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:41,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:41,165 INFO L87 Difference]: Start difference. First operand 327 states and 491 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:42,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:44,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:46,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:48,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:48,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:48,718 INFO L93 Difference]: Finished difference Result 733 states and 1108 transitions. [2022-03-19 01:53:48,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:48,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-19 01:53:48,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:48,721 INFO L225 Difference]: With dead ends: 733 [2022-03-19 01:53:48,721 INFO L226 Difference]: Without dead ends: 432 [2022-03-19 01:53:48,722 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:48,722 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 118 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:48,722 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 374 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-03-19 01:53:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-03-19 01:53:48,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 325. [2022-03-19 01:53:48,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.509375) internal successors, (483), 320 states have internal predecessors, (483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:48,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 487 transitions. [2022-03-19 01:53:48,731 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 487 transitions. Word has length 109 [2022-03-19 01:53:48,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:48,732 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 487 transitions. [2022-03-19 01:53:48,732 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:48,732 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 487 transitions. [2022-03-19 01:53:48,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-19 01:53:48,733 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:48,733 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-03-19 01:53:48,734 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-19 01:53:48,734 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:48,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:48,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1574021277, now seen corresponding path program 1 times [2022-03-19 01:53:48,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:48,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725524555] [2022-03-19 01:53:48,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:48,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:48,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:48,852 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:53:48,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:48,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725524555] [2022-03-19 01:53:48,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725524555] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:48,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:48,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:48,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882183364] [2022-03-19 01:53:48,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:48,853 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:48,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:48,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:48,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:48,853 INFO L87 Difference]: Start difference. First operand 325 states and 487 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:51,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:53,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:54,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:55,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:55,405 INFO L93 Difference]: Finished difference Result 689 states and 1036 transitions. [2022-03-19 01:53:55,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:55,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-19 01:53:55,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:55,407 INFO L225 Difference]: With dead ends: 689 [2022-03-19 01:53:55,407 INFO L226 Difference]: Without dead ends: 390 [2022-03-19 01:53:55,408 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:55,408 INFO L912 BasicCegarLoop]: 151 mSDtfsCounter, 117 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:55,409 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 410 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-19 01:53:55,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-03-19 01:53:55,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 325. [2022-03-19 01:53:55,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.5) internal successors, (480), 320 states have internal predecessors, (480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 484 transitions. [2022-03-19 01:53:55,418 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 484 transitions. Word has length 110 [2022-03-19 01:53:55,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:55,418 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 484 transitions. [2022-03-19 01:53:55,418 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:55,418 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 484 transitions. [2022-03-19 01:53:55,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-19 01:53:55,419 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:55,419 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-03-19 01:53:55,420 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-19 01:53:55,420 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:55,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:55,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2007236141, now seen corresponding path program 1 times [2022-03-19 01:53:55,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:55,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466498156] [2022-03-19 01:53:55,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:55,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:55,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:55,535 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:53:55,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:55,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466498156] [2022-03-19 01:53:55,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466498156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:55,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:55,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:55,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791282660] [2022-03-19 01:53:55,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:55,536 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:55,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:55,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:55,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:55,537 INFO L87 Difference]: Start difference. First operand 325 states and 484 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:57,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:59,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:01,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:01,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:01,761 INFO L93 Difference]: Finished difference Result 698 states and 1044 transitions. [2022-03-19 01:54:01,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:01,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-19 01:54:01,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:01,765 INFO L225 Difference]: With dead ends: 698 [2022-03-19 01:54:01,765 INFO L226 Difference]: Without dead ends: 399 [2022-03-19 01:54:01,766 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:01,766 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 62 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:01,767 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 509 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-19 01:54:01,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-03-19 01:54:01,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 359. [2022-03-19 01:54:01,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 354 states have (on average 1.4943502824858756) internal successors, (529), 354 states have internal predecessors, (529), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:01,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 533 transitions. [2022-03-19 01:54:01,775 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 533 transitions. Word has length 110 [2022-03-19 01:54:01,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:01,776 INFO L478 AbstractCegarLoop]: Abstraction has 359 states and 533 transitions. [2022-03-19 01:54:01,776 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:01,776 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 533 transitions. [2022-03-19 01:54:01,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-19 01:54:01,777 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:01,777 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-03-19 01:54:01,777 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-19 01:54:01,777 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:01,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:01,778 INFO L85 PathProgramCache]: Analyzing trace with hash 479883634, now seen corresponding path program 1 times [2022-03-19 01:54:01,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:01,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887082050] [2022-03-19 01:54:01,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:01,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:01,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:01,915 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-19 01:54:01,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:01,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887082050] [2022-03-19 01:54:01,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887082050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:01,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:01,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:01,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152922396] [2022-03-19 01:54:01,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:01,916 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:01,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:01,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:01,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:01,917 INFO L87 Difference]: Start difference. First operand 359 states and 533 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:03,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:05,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:08,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:08,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:08,488 INFO L93 Difference]: Finished difference Result 730 states and 1091 transitions. [2022-03-19 01:54:08,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:08,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-19 01:54:08,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:08,490 INFO L225 Difference]: With dead ends: 730 [2022-03-19 01:54:08,490 INFO L226 Difference]: Without dead ends: 397 [2022-03-19 01:54:08,490 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:08,491 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 28 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:08,491 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 589 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 433 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-19 01:54:08,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-03-19 01:54:08,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 383. [2022-03-19 01:54:08,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.492063492063492) internal successors, (564), 378 states have internal predecessors, (564), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:08,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 568 transitions. [2022-03-19 01:54:08,501 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 568 transitions. Word has length 110 [2022-03-19 01:54:08,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:08,501 INFO L478 AbstractCegarLoop]: Abstraction has 383 states and 568 transitions. [2022-03-19 01:54:08,501 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:08,501 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 568 transitions. [2022-03-19 01:54:08,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-19 01:54:08,502 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:08,503 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:08,503 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-19 01:54:08,503 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:08,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:08,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1551809488, now seen corresponding path program 1 times [2022-03-19 01:54:08,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:08,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857583093] [2022-03-19 01:54:08,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:08,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:08,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:08,631 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:54:08,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:08,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857583093] [2022-03-19 01:54:08,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857583093] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:08,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:08,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:08,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359383253] [2022-03-19 01:54:08,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:08,632 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:08,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:08,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:08,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:08,633 INFO L87 Difference]: Start difference. First operand 383 states and 568 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:10,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:12,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:14,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:15,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:15,163 INFO L93 Difference]: Finished difference Result 845 states and 1260 transitions. [2022-03-19 01:54:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:15,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-03-19 01:54:15,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:15,166 INFO L225 Difference]: With dead ends: 845 [2022-03-19 01:54:15,166 INFO L226 Difference]: Without dead ends: 488 [2022-03-19 01:54:15,166 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:15,167 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 106 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:15,167 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 394 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-19 01:54:15,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-03-19 01:54:15,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 420. [2022-03-19 01:54:15,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.4939759036144578) internal successors, (620), 415 states have internal predecessors, (620), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 624 transitions. [2022-03-19 01:54:15,192 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 624 transitions. Word has length 121 [2022-03-19 01:54:15,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:15,192 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 624 transitions. [2022-03-19 01:54:15,192 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:15,193 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 624 transitions. [2022-03-19 01:54:15,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-19 01:54:15,194 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:15,194 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:15,194 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-19 01:54:15,194 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:15,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:15,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1325942260, now seen corresponding path program 1 times [2022-03-19 01:54:15,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:15,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589762002] [2022-03-19 01:54:15,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:15,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:15,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:15,328 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:54:15,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:15,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589762002] [2022-03-19 01:54:15,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589762002] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:15,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:15,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:15,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185715501] [2022-03-19 01:54:15,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:15,329 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:15,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:15,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:15,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:15,329 INFO L87 Difference]: Start difference. First operand 420 states and 624 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:16,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:18,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:20,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:22,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:22,105 INFO L93 Difference]: Finished difference Result 879 states and 1310 transitions. [2022-03-19 01:54:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:22,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-19 01:54:22,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:22,107 INFO L225 Difference]: With dead ends: 879 [2022-03-19 01:54:22,107 INFO L226 Difference]: Without dead ends: 485 [2022-03-19 01:54:22,108 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:22,108 INFO L912 BasicCegarLoop]: 151 mSDtfsCounter, 105 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 49 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:22,109 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 410 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-19 01:54:22,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2022-03-19 01:54:22,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 420. [2022-03-19 01:54:22,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.489156626506024) internal successors, (618), 415 states have internal predecessors, (618), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:22,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 622 transitions. [2022-03-19 01:54:22,119 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 622 transitions. Word has length 122 [2022-03-19 01:54:22,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:22,120 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 622 transitions. [2022-03-19 01:54:22,120 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:22,120 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 622 transitions. [2022-03-19 01:54:22,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-19 01:54:22,121 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:22,121 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 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] [2022-03-19 01:54:22,122 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-19 01:54:22,122 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:22,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:22,122 INFO L85 PathProgramCache]: Analyzing trace with hash 606233963, now seen corresponding path program 1 times [2022-03-19 01:54:22,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:22,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137320814] [2022-03-19 01:54:22,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:22,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:22,241 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-19 01:54:22,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:22,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137320814] [2022-03-19 01:54:22,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137320814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:22,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:22,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:22,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160892837] [2022-03-19 01:54:22,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:22,243 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:22,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:22,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:22,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:22,243 INFO L87 Difference]: Start difference. First operand 420 states and 622 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:24,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:26,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:26,309 INFO L93 Difference]: Finished difference Result 850 states and 1264 transitions. [2022-03-19 01:54:26,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:26,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-19 01:54:26,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:26,311 INFO L225 Difference]: With dead ends: 850 [2022-03-19 01:54:26,311 INFO L226 Difference]: Without dead ends: 456 [2022-03-19 01:54:26,312 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:26,313 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 74 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:26,313 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 513 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-19 01:54:26,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-03-19 01:54:26,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 420. [2022-03-19 01:54:26,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.4867469879518072) internal successors, (617), 415 states have internal predecessors, (617), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:26,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 621 transitions. [2022-03-19 01:54:26,323 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 621 transitions. Word has length 123 [2022-03-19 01:54:26,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:26,323 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 621 transitions. [2022-03-19 01:54:26,323 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:26,323 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 621 transitions. [2022-03-19 01:54:26,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-19 01:54:26,341 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:26,341 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 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] [2022-03-19 01:54:26,341 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-19 01:54:26,341 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:26,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:26,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1473286188, now seen corresponding path program 1 times [2022-03-19 01:54:26,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:26,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908231969] [2022-03-19 01:54:26,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:26,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:26,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:26,462 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-19 01:54:26,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:26,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908231969] [2022-03-19 01:54:26,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908231969] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:26,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:26,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:26,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998059285] [2022-03-19 01:54:26,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:26,463 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:26,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:26,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:26,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:26,464 INFO L87 Difference]: Start difference. First operand 420 states and 621 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:29,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:31,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:33,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:33,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:33,585 INFO L93 Difference]: Finished difference Result 877 states and 1302 transitions. [2022-03-19 01:54:33,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:33,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-19 01:54:33,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:33,588 INFO L225 Difference]: With dead ends: 877 [2022-03-19 01:54:33,588 INFO L226 Difference]: Without dead ends: 483 [2022-03-19 01:54:33,589 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:33,589 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 126 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:33,589 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 364 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 454 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-19 01:54:33,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-03-19 01:54:33,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 420. [2022-03-19 01:54:33,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.472289156626506) internal successors, (611), 415 states have internal predecessors, (611), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:33,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 615 transitions. [2022-03-19 01:54:33,600 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 615 transitions. Word has length 123 [2022-03-19 01:54:33,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:33,600 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 615 transitions. [2022-03-19 01:54:33,600 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:33,600 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 615 transitions. [2022-03-19 01:54:33,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-19 01:54:33,601 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:33,602 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:33,602 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-19 01:54:33,602 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:33,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:33,602 INFO L85 PathProgramCache]: Analyzing trace with hash -93372547, now seen corresponding path program 1 times [2022-03-19 01:54:33,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:33,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61383623] [2022-03-19 01:54:33,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:33,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:33,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:33,725 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:54:33,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:33,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61383623] [2022-03-19 01:54:33,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61383623] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:33,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:33,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:33,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301725478] [2022-03-19 01:54:33,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:33,726 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:33,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:33,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:33,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:33,727 INFO L87 Difference]: Start difference. First operand 420 states and 615 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:35,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:36,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:37,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:37,328 INFO L93 Difference]: Finished difference Result 919 states and 1351 transitions. [2022-03-19 01:54:37,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:37,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-19 01:54:37,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:37,330 INFO L225 Difference]: With dead ends: 919 [2022-03-19 01:54:37,330 INFO L226 Difference]: Without dead ends: 525 [2022-03-19 01:54:37,331 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:37,332 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 98 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:37,332 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 367 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-19 01:54:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-03-19 01:54:37,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 463. [2022-03-19 01:54:37,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 458 states have (on average 1.4737991266375545) internal successors, (675), 458 states have internal predecessors, (675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:37,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 679 transitions. [2022-03-19 01:54:37,360 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 679 transitions. Word has length 130 [2022-03-19 01:54:37,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:37,361 INFO L478 AbstractCegarLoop]: Abstraction has 463 states and 679 transitions. [2022-03-19 01:54:37,362 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 679 transitions. [2022-03-19 01:54:37,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-19 01:54:37,363 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:37,363 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-19 01:54:37,363 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-19 01:54:37,364 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:37,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:37,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1531954608, now seen corresponding path program 1 times [2022-03-19 01:54:37,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:37,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116341258] [2022-03-19 01:54:37,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:37,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:37,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-19 01:54:37,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:37,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116341258] [2022-03-19 01:54:37,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116341258] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:37,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:37,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:37,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009930538] [2022-03-19 01:54:37,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:37,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:37,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:37,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:37,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:37,488 INFO L87 Difference]: Start difference. First operand 463 states and 679 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:39,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:41,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:43,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:44,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:44,406 INFO L93 Difference]: Finished difference Result 965 states and 1420 transitions. [2022-03-19 01:54:44,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:44,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-19 01:54:44,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:44,408 INFO L225 Difference]: With dead ends: 965 [2022-03-19 01:54:44,408 INFO L226 Difference]: Without dead ends: 528 [2022-03-19 01:54:44,409 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:44,409 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 118 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:44,409 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 380 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-03-19 01:54:44,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-03-19 01:54:44,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 463. [2022-03-19 01:54:44,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 458 states have (on average 1.4585152838427948) internal successors, (668), 458 states have internal predecessors, (668), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:44,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 672 transitions. [2022-03-19 01:54:44,420 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 672 transitions. Word has length 131 [2022-03-19 01:54:44,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:44,420 INFO L478 AbstractCegarLoop]: Abstraction has 463 states and 672 transitions. [2022-03-19 01:54:44,420 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:44,420 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 672 transitions. [2022-03-19 01:54:44,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-19 01:54:44,422 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:44,422 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:44,422 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-19 01:54:44,422 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:44,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:44,423 INFO L85 PathProgramCache]: Analyzing trace with hash -419238951, now seen corresponding path program 1 times [2022-03-19 01:54:44,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:44,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727822048] [2022-03-19 01:54:44,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:44,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:44,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:44,539 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:54:44,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:44,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727822048] [2022-03-19 01:54:44,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727822048] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:44,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:44,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:44,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519095532] [2022-03-19 01:54:44,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:44,540 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:44,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:44,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:44,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:44,541 INFO L87 Difference]: Start difference. First operand 463 states and 672 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:45,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:47,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:50,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:50,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:50,908 INFO L93 Difference]: Finished difference Result 965 states and 1406 transitions. [2022-03-19 01:54:50,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:50,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-19 01:54:50,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:50,912 INFO L225 Difference]: With dead ends: 965 [2022-03-19 01:54:50,913 INFO L226 Difference]: Without dead ends: 526 [2022-03-19 01:54:50,913 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:50,915 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 99 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:50,915 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 380 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 467 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-19 01:54:50,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-03-19 01:54:50,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 465. [2022-03-19 01:54:50,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 460 states have (on average 1.458695652173913) internal successors, (671), 460 states have internal predecessors, (671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:50,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 675 transitions. [2022-03-19 01:54:50,925 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 675 transitions. Word has length 131 [2022-03-19 01:54:50,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:50,926 INFO L478 AbstractCegarLoop]: Abstraction has 465 states and 675 transitions. [2022-03-19 01:54:50,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:50,926 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 675 transitions. [2022-03-19 01:54:50,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-19 01:54:50,927 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:50,927 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-19 01:54:50,927 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-19 01:54:50,927 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:50,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:50,928 INFO L85 PathProgramCache]: Analyzing trace with hash 46899057, now seen corresponding path program 1 times [2022-03-19 01:54:50,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:50,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791061130] [2022-03-19 01:54:50,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:50,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:51,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:51,055 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-19 01:54:51,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:51,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791061130] [2022-03-19 01:54:51,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791061130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:51,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:51,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 01:54:51,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433714588] [2022-03-19 01:54:51,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:51,056 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 01:54:51,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:51,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 01:54:51,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:54:51,057 INFO L87 Difference]: Start difference. First operand 465 states and 675 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:53,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:55,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:55,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:55,558 INFO L93 Difference]: Finished difference Result 1293 states and 1894 transitions. [2022-03-19 01:54:55,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 01:54:55,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-19 01:54:55,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:55,561 INFO L225 Difference]: With dead ends: 1293 [2022-03-19 01:54:55,561 INFO L226 Difference]: Without dead ends: 854 [2022-03-19 01:54:55,562 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:54:55,562 INFO L912 BasicCegarLoop]: 247 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:55,562 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 441 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 285 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-19 01:54:55,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-03-19 01:54:55,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 854. [2022-03-19 01:54:55,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 849 states have (on average 1.4570082449941106) internal successors, (1237), 849 states have internal predecessors, (1237), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:55,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1241 transitions. [2022-03-19 01:54:55,581 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1241 transitions. Word has length 131 [2022-03-19 01:54:55,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:55,581 INFO L478 AbstractCegarLoop]: Abstraction has 854 states and 1241 transitions. [2022-03-19 01:54:55,582 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:55,582 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1241 transitions. [2022-03-19 01:54:55,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-19 01:54:55,584 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:55,584 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-19 01:54:55,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-19 01:54:55,584 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:55,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:55,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1162343182, now seen corresponding path program 1 times [2022-03-19 01:54:55,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:55,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215312174] [2022-03-19 01:54:55,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:55,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:55,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:55,690 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-03-19 01:54:55,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:55,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215312174] [2022-03-19 01:54:55,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215312174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:55,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:55,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 01:54:55,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966057302] [2022-03-19 01:54:55,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:55,691 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 01:54:55,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:55,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 01:54:55,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:54:55,692 INFO L87 Difference]: Start difference. First operand 854 states and 1241 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:57,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:59,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:59,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:59,793 INFO L93 Difference]: Finished difference Result 1709 states and 2489 transitions. [2022-03-19 01:54:59,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 01:54:59,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-19 01:54:59,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:59,796 INFO L225 Difference]: With dead ends: 1709 [2022-03-19 01:54:59,796 INFO L226 Difference]: Without dead ends: 881 [2022-03-19 01:54:59,797 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:54:59,797 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:59,797 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-19 01:54:59,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-03-19 01:54:59,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2022-03-19 01:54:59,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 876 states have (on average 1.452054794520548) internal successors, (1272), 876 states have internal predecessors, (1272), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:59,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1276 transitions. [2022-03-19 01:54:59,815 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1276 transitions. Word has length 131 [2022-03-19 01:54:59,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:59,815 INFO L478 AbstractCegarLoop]: Abstraction has 881 states and 1276 transitions. [2022-03-19 01:54:59,815 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:59,815 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1276 transitions. [2022-03-19 01:54:59,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-19 01:54:59,817 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:59,817 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-19 01:54:59,817 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-19 01:54:59,818 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:59,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:59,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1103122445, now seen corresponding path program 1 times [2022-03-19 01:54:59,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:59,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969005529] [2022-03-19 01:54:59,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:59,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:59,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:59,913 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-19 01:54:59,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:59,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969005529] [2022-03-19 01:54:59,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969005529] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:59,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:59,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 01:54:59,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570239500] [2022-03-19 01:54:59,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:59,914 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 01:54:59,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:59,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 01:54:59,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:54:59,914 INFO L87 Difference]: Start difference. First operand 881 states and 1276 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:01,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:03,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:05,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:05,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:55:05,656 INFO L93 Difference]: Finished difference Result 1738 states and 2525 transitions. [2022-03-19 01:55:05,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 01:55:05,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-19 01:55:05,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:55:05,659 INFO L225 Difference]: With dead ends: 1738 [2022-03-19 01:55:05,659 INFO L226 Difference]: Without dead ends: 883 [2022-03-19 01:55:05,660 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:55:05,660 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-19 01:55:05,660 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-19 01:55:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-03-19 01:55:05,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2022-03-19 01:55:05,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 878 states have (on average 1.4510250569476082) internal successors, (1274), 878 states have internal predecessors, (1274), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:05,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1278 transitions. [2022-03-19 01:55:05,678 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1278 transitions. Word has length 131 [2022-03-19 01:55:05,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:55:05,678 INFO L478 AbstractCegarLoop]: Abstraction has 883 states and 1278 transitions. [2022-03-19 01:55:05,678 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:05,678 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1278 transitions. [2022-03-19 01:55:05,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-19 01:55:05,680 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:55:05,680 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-19 01:55:05,681 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-19 01:55:05,681 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:55:05,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:55:05,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1237897128, now seen corresponding path program 1 times [2022-03-19 01:55:05,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:55:05,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035716074] [2022-03-19 01:55:05,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:05,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:55:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:05,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:55:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-19 01:55:05,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:55:05,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035716074] [2022-03-19 01:55:05,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035716074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:55:05,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:55:05,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 01:55:05,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787226112] [2022-03-19 01:55:05,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:55:05,807 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 01:55:05,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:55:05,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 01:55:05,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:55:05,807 INFO L87 Difference]: Start difference. First operand 883 states and 1278 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:06,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:08,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:09,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:55:09,391 INFO L93 Difference]: Finished difference Result 2177 states and 3169 transitions. [2022-03-19 01:55:09,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 01:55:09,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-19 01:55:09,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:55:09,395 INFO L225 Difference]: With dead ends: 2177 [2022-03-19 01:55:09,395 INFO L226 Difference]: Without dead ends: 1322 [2022-03-19 01:55:09,396 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:55:09,396 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:55:09,396 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 380 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 246 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-03-19 01:55:09,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-03-19 01:55:09,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1320. [2022-03-19 01:55:09,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1315 states have (on average 1.4570342205323195) internal successors, (1916), 1315 states have internal predecessors, (1916), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:09,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1920 transitions. [2022-03-19 01:55:09,422 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1920 transitions. Word has length 133 [2022-03-19 01:55:09,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:55:09,423 INFO L478 AbstractCegarLoop]: Abstraction has 1320 states and 1920 transitions. [2022-03-19 01:55:09,423 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:09,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1920 transitions. [2022-03-19 01:55:09,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-19 01:55:09,425 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:55:09,425 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-19 01:55:09,426 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-19 01:55:09,426 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:55:09,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:55:09,426 INFO L85 PathProgramCache]: Analyzing trace with hash -224082698, now seen corresponding path program 1 times [2022-03-19 01:55:09,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:55:09,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020866379] [2022-03-19 01:55:09,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:09,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:55:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:09,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:55:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-19 01:55:09,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:55:09,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020866379] [2022-03-19 01:55:09,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020866379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:55:09,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:55:09,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 01:55:09,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806025238] [2022-03-19 01:55:09,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:55:09,552 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 01:55:09,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:55:09,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 01:55:09,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:55:09,553 INFO L87 Difference]: Start difference. First operand 1320 states and 1920 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:11,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:11,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:55:11,849 INFO L93 Difference]: Finished difference Result 1761 states and 2566 transitions. [2022-03-19 01:55:11,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 01:55:11,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-19 01:55:11,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:55:11,854 INFO L225 Difference]: With dead ends: 1761 [2022-03-19 01:55:11,854 INFO L226 Difference]: Without dead ends: 1759 [2022-03-19 01:55:11,855 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:55:11,855 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 01:55:11,856 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 243 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 01:55:11,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-03-19 01:55:11,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1757. [2022-03-19 01:55:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1757 states, 1752 states have (on average 1.4606164383561644) internal successors, (2559), 1752 states have internal predecessors, (2559), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:11,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 2563 transitions. [2022-03-19 01:55:11,892 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 2563 transitions. Word has length 134 [2022-03-19 01:55:11,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:55:11,892 INFO L478 AbstractCegarLoop]: Abstraction has 1757 states and 2563 transitions. [2022-03-19 01:55:11,893 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:11,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 2563 transitions. [2022-03-19 01:55:11,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-19 01:55:11,895 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:55:11,895 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-03-19 01:55:11,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-19 01:55:11,895 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:55:11,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:55:11,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1015869731, now seen corresponding path program 1 times [2022-03-19 01:55:11,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:55:11,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966704198] [2022-03-19 01:55:11,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:11,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:55:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:12,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:55:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:12,050 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-19 01:55:12,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:55:12,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966704198] [2022-03-19 01:55:12,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966704198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:55:12,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:55:12,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:55:12,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278210535] [2022-03-19 01:55:12,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:55:12,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:55:12,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:55:12,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:55:12,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:55:12,052 INFO L87 Difference]: Start difference. First operand 1757 states and 2563 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:13,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:16,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:18,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:18,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:55:18,574 INFO L93 Difference]: Finished difference Result 3542 states and 5171 transitions. [2022-03-19 01:55:18,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:55:18,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-03-19 01:55:18,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:55:18,579 INFO L225 Difference]: With dead ends: 3542 [2022-03-19 01:55:18,579 INFO L226 Difference]: Without dead ends: 1813 [2022-03-19 01:55:18,581 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:55:18,581 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 29 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:55:18,581 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 580 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 432 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-19 01:55:18,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2022-03-19 01:55:18,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1757. [2022-03-19 01:55:18,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1757 states, 1752 states have (on average 1.4583333333333333) internal successors, (2555), 1752 states have internal predecessors, (2555), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:18,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 2559 transitions. [2022-03-19 01:55:18,618 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 2559 transitions. Word has length 140 [2022-03-19 01:55:18,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:55:18,618 INFO L478 AbstractCegarLoop]: Abstraction has 1757 states and 2559 transitions. [2022-03-19 01:55:18,618 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:18,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 2559 transitions. [2022-03-19 01:55:18,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-19 01:55:18,621 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:55:18,621 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-19 01:55:18,621 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-19 01:55:18,622 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:55:18,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:55:18,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1937528124, now seen corresponding path program 1 times [2022-03-19 01:55:18,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:55:18,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748277549] [2022-03-19 01:55:18,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:18,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:55:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:18,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:55:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-19 01:55:18,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:55:18,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748277549] [2022-03-19 01:55:18,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748277549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:55:18,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:55:18,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:55:18,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300640254] [2022-03-19 01:55:18,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:55:18,744 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:55:18,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:55:18,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:55:18,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:55:18,745 INFO L87 Difference]: Start difference. First operand 1757 states and 2559 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:20,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:21,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:55:21,230 INFO L93 Difference]: Finished difference Result 4033 states and 5871 transitions. [2022-03-19 01:55:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:55:21,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-19 01:55:21,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:55:21,237 INFO L225 Difference]: With dead ends: 4033 [2022-03-19 01:55:21,238 INFO L226 Difference]: Without dead ends: 2304 [2022-03-19 01:55:21,240 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:55:21,241 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 106 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 01:55:21,241 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 396 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 01:55:21,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2022-03-19 01:55:21,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 1881. [2022-03-19 01:55:21,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1876 states have (on average 1.4520255863539446) internal successors, (2724), 1876 states have internal predecessors, (2724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:21,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2728 transitions. [2022-03-19 01:55:21,285 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2728 transitions. Word has length 157 [2022-03-19 01:55:21,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:55:21,285 INFO L478 AbstractCegarLoop]: Abstraction has 1881 states and 2728 transitions. [2022-03-19 01:55:21,285 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:21,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2728 transitions. [2022-03-19 01:55:21,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-19 01:55:21,288 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:55:21,289 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-19 01:55:21,289 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-19 01:55:21,289 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:55:21,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:55:21,289 INFO L85 PathProgramCache]: Analyzing trace with hash 539016946, now seen corresponding path program 1 times [2022-03-19 01:55:21,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:55:21,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812017146] [2022-03-19 01:55:21,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:21,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:55:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:21,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:55:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:21,748 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-19 01:55:21,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:55:21,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812017146] [2022-03-19 01:55:21,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812017146] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:55:21,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:55:21,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-19 01:55:21,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450665853] [2022-03-19 01:55:21,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:55:21,750 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-19 01:55:21,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:55:21,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-19 01:55:21,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-19 01:55:21,751 INFO L87 Difference]: Start difference. First operand 1881 states and 2728 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:23,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:25,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:27,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:28,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:29,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:55:29,721 INFO L93 Difference]: Finished difference Result 3755 states and 5448 transitions. [2022-03-19 01:55:29,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-19 01:55:29,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-03-19 01:55:29,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:55:29,726 INFO L225 Difference]: With dead ends: 3755 [2022-03-19 01:55:29,726 INFO L226 Difference]: Without dead ends: 1881 [2022-03-19 01:55:29,730 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-19 01:55:29,730 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-19 01:55:29,730 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-03-19 01:55:29,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2022-03-19 01:55:29,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 1881. [2022-03-19 01:55:29,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1876 states have (on average 1.4514925373134329) internal successors, (2723), 1876 states have internal predecessors, (2723), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:29,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2727 transitions. [2022-03-19 01:55:29,772 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2727 transitions. Word has length 171 [2022-03-19 01:55:29,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:55:29,773 INFO L478 AbstractCegarLoop]: Abstraction has 1881 states and 2727 transitions. [2022-03-19 01:55:29,773 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:29,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2727 transitions. [2022-03-19 01:55:29,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-19 01:55:29,776 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:55:29,776 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-19 01:55:29,777 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-19 01:55:29,777 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:55:29,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:55:29,777 INFO L85 PathProgramCache]: Analyzing trace with hash -422608269, now seen corresponding path program 1 times [2022-03-19 01:55:29,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:55:29,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831276299] [2022-03-19 01:55:29,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:29,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:55:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:30,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:55:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:30,478 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-19 01:55:30,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:55:30,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831276299] [2022-03-19 01:55:30,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831276299] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 01:55:30,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269337110] [2022-03-19 01:55:30,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:30,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 01:55:30,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 01:55:30,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 01:55:30,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-19 01:55:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:31,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 219 conjunts are in the unsatisfiable core [2022-03-19 01:55:31,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 01:55:33,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:38,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:39,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:40,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:57:53,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:57:53,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:57:53,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:57:53,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:57:53,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:57:53,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:57:53,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:57:53,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:57:53,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:57:53,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:57:53,789 INFO L244 Elim1Store]: Index analysis took 133 ms