/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.10.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 12:23:18,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 12:23:18,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 12:23:18,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 12:23:18,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 12:23:18,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 12:23:18,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 12:23:18,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 12:23:18,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 12:23:18,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 12:23:18,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 12:23:18,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 12:23:18,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 12:23:18,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 12:23:18,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 12:23:18,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 12:23:18,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 12:23:18,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 12:23:18,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 12:23:18,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 12:23:18,959 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 12:23:18,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 12:23:18,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 12:23:18,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 12:23:18,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 12:23:18,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 12:23:18,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 12:23:18,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 12:23:18,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 12:23:18,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 12:23:18,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 12:23:18,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 12:23:18,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 12:23:18,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 12:23:18,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 12:23:18,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 12:23:18,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 12:23:18,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 12:23:18,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 12:23:18,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 12:23:18,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 12:23:18,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 12:23:18,975 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-20 12:23:18,996 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 12:23:18,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 12:23:18,998 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 12:23:18,998 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 12:23:18,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 12:23:18,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 12:23:18,999 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 12:23:18,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 12:23:18,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 12:23:19,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 12:23:19,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 12:23:19,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 12:23:19,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 12:23:19,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 12:23:19,001 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 12:23:19,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 12:23:19,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 12:23:19,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 12:23:19,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 12:23:19,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:23:19,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 12:23:19,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 12:23:19,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 12:23:19,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 12:23:19,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 12:23:19,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 12:23:19,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-20 12:23:19,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-20 12:23:19,003 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 12:23:19,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 12:23:19,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 12:23:19,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 12:23:19,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 12:23:19,232 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 12:23:19,232 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 12:23:19,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-03-20 12:23:19,294 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7926613eb/1b01124dec50442c845d235d4d1d3261/FLAGc2d9fe595 [2022-03-20 12:23:19,733 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 12:23:19,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-03-20 12:23:19,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7926613eb/1b01124dec50442c845d235d4d1d3261/FLAGc2d9fe595 [2022-03-20 12:23:20,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7926613eb/1b01124dec50442c845d235d4d1d3261 [2022-03-20 12:23:20,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 12:23:20,093 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 12:23:20,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 12:23:20,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 12:23:20,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 12:23:20,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:23:20" (1/1) ... [2022-03-20 12:23:20,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1058986a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:20, skipping insertion in model container [2022-03-20 12:23:20,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:23:20" (1/1) ... [2022-03-20 12:23:20,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 12:23:20,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 12:23:20,448 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.10.i.cil-2.c[73311,73324] [2022-03-20 12:23:20,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:23:20,465 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 12:23:20,545 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.10.i.cil-2.c[73311,73324] [2022-03-20 12:23:20,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:23:20,567 INFO L208 MainTranslator]: Completed translation [2022-03-20 12:23:20,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:20 WrapperNode [2022-03-20 12:23:20,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 12:23:20,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 12:23:20,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 12:23:20,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 12:23:20,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:20" (1/1) ... [2022-03-20 12:23:20,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:20" (1/1) ... [2022-03-20 12:23:20,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:20" (1/1) ... [2022-03-20 12:23:20,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:20" (1/1) ... [2022-03-20 12:23:20,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:20" (1/1) ... [2022-03-20 12:23:20,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:20" (1/1) ... [2022-03-20 12:23:20,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:20" (1/1) ... [2022-03-20 12:23:20,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 12:23:20,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 12:23:20,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 12:23:20,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 12:23:20,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:20" (1/1) ... [2022-03-20 12:23:20,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:23:20,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:23:20,717 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) [2022-03-20 12:23:20,735 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 [2022-03-20 12:23:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 12:23:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 12:23:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 12:23:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 12:23:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 12:23:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 12:23:20,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 12:23:20,749 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 12:23:20,750 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 12:23:20,751 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 12:23:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 12:23:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 12:23:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 12:23:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 12:23:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 12:23:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 12:23:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 12:23:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 12:23:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 12:23:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 12:23:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 12:23:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 12:23:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 12:23:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 12:23:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 12:23:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 12:23:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 12:23:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 12:23:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 12:23:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 12:23:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 12:23:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 12:23:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 12:23:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 12:23:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 12:23:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 12:23:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 12:23:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 12:23:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 12:23:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 12:23:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 12:23:20,930 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 12:23:20,931 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 12:23:21,906 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 12:23:22,255 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 12:23:22,255 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 12:23:22,264 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 12:23:22,269 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 12:23:22,269 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 12:23:22,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:23:22 BoogieIcfgContainer [2022-03-20 12:23:22,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 12:23:22,272 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 12:23:22,272 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 12:23:22,272 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 12:23:22,274 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:23:22" (1/1) ... [2022-03-20 12:23:22,275 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-03-20 12:23:22,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:23:22 BasicIcfg [2022-03-20 12:23:22,306 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 12:23:22,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 12:23:22,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 12:23:22,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 12:23:22,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 12:23:20" (1/4) ... [2022-03-20 12:23:22,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d224d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:23:22, skipping insertion in model container [2022-03-20 12:23:22,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:20" (2/4) ... [2022-03-20 12:23:22,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d224d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:23:22, skipping insertion in model container [2022-03-20 12:23:22,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:23:22" (3/4) ... [2022-03-20 12:23:22,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d224d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 12:23:22, skipping insertion in model container [2022-03-20 12:23:22,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:23:22" (4/4) ... [2022-03-20 12:23:22,311 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-2.cqvasr [2022-03-20 12:23:22,314 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 12:23:22,314 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 12:23:22,342 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 12:23:22,346 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 [2022-03-20 12:23:22,346 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 12:23:22,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 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) [2022-03-20 12:23:22,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-20 12:23:22,379 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:22,380 INFO L499 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] [2022-03-20 12:23:22,380 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:22,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:22,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2072103194, now seen corresponding path program 1 times [2022-03-20 12:23:22,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:22,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617415216] [2022-03-20 12:23:22,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:22,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:22,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:22,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:22,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:22,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617415216] [2022-03-20 12:23:22,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617415216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:22,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:22,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:22,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083650272] [2022-03-20 12:23:22,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:22,904 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:22,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:22,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:22,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:22,928 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 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 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) [2022-03-20 12:23:23,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:26,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:28,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:29,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:23:29,108 INFO L93 Difference]: Finished difference Result 328 states and 548 transitions. [2022-03-20 12:23:29,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:23:29,110 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 [2022-03-20 12:23:29,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:23:29,116 INFO L225 Difference]: With dead ends: 328 [2022-03-20 12:23:29,117 INFO L226 Difference]: Without dead ends: 167 [2022-03-20 12:23:29,132 INFO L912 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 [2022-03-20 12:23:29,142 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 34 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:23:29,143 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 589 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 407 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-20 12:23:29,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-03-20 12:23:29,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-03-20 12:23:29,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5448275862068965) internal successors, (224), 145 states have internal predecessors, (224), 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) [2022-03-20 12:23:29,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 228 transitions. [2022-03-20 12:23:29,202 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 228 transitions. Word has length 48 [2022-03-20 12:23:29,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:23:29,202 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 228 transitions. [2022-03-20 12:23:29,202 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) [2022-03-20 12:23:29,203 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 228 transitions. [2022-03-20 12:23:29,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-20 12:23:29,206 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:29,206 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:23:29,206 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 12:23:29,206 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:29,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:29,207 INFO L85 PathProgramCache]: Analyzing trace with hash 502150900, now seen corresponding path program 1 times [2022-03-20 12:23:29,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:29,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975028753] [2022-03-20 12:23:29,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:29,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:29,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:29,426 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:29,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:29,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975028753] [2022-03-20 12:23:29,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975028753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:29,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:29,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:29,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591035836] [2022-03-20 12:23:29,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:29,428 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:29,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:29,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:29,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:29,429 INFO L87 Difference]: Start difference. First operand 150 states and 228 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-03-20 12:23:32,434 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 [] [2022-03-20 12:23:33,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:23:33,038 INFO L93 Difference]: Finished difference Result 291 states and 439 transitions. [2022-03-20 12:23:33,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:23:33,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 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 61 [2022-03-20 12:23:33,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:23:33,039 INFO L225 Difference]: With dead ends: 291 [2022-03-20 12:23:33,040 INFO L226 Difference]: Without dead ends: 167 [2022-03-20 12:23:33,040 INFO L912 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 [2022-03-20 12:23:33,041 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 24 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:23:33,041 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 465 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 12:23:33,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-03-20 12:23:33,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-03-20 12:23:33,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5379310344827586) internal successors, (223), 145 states have internal predecessors, (223), 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) [2022-03-20 12:23:33,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 227 transitions. [2022-03-20 12:23:33,070 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 227 transitions. Word has length 61 [2022-03-20 12:23:33,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:23:33,070 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 227 transitions. [2022-03-20 12:23:33,071 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-03-20 12:23:33,071 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 227 transitions. [2022-03-20 12:23:33,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-20 12:23:33,092 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:33,092 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:23:33,093 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 12:23:33,093 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:33,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:33,093 INFO L85 PathProgramCache]: Analyzing trace with hash -477350048, now seen corresponding path program 1 times [2022-03-20 12:23:33,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:33,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65737865] [2022-03-20 12:23:33,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:33,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:33,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:33,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:33,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:33,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65737865] [2022-03-20 12:23:33,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65737865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:33,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:33,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:33,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503930142] [2022-03-20 12:23:33,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:33,246 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:33,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:33,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:33,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:33,247 INFO L87 Difference]: Start difference. First operand 150 states and 227 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2022-03-20 12:23:34,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:36,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:39,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:39,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:23:39,380 INFO L93 Difference]: Finished difference Result 290 states and 437 transitions. [2022-03-20 12:23:39,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:23:39,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 62 [2022-03-20 12:23:39,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:23:39,382 INFO L225 Difference]: With dead ends: 290 [2022-03-20 12:23:39,382 INFO L226 Difference]: Without dead ends: 166 [2022-03-20 12:23:39,382 INFO L912 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 [2022-03-20 12:23:39,383 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 28 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:23:39,383 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 467 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-20 12:23:39,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-03-20 12:23:39,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 150. [2022-03-20 12:23:39,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5310344827586206) internal successors, (222), 145 states have internal predecessors, (222), 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) [2022-03-20 12:23:39,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 226 transitions. [2022-03-20 12:23:39,391 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 226 transitions. Word has length 62 [2022-03-20 12:23:39,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:23:39,391 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 226 transitions. [2022-03-20 12:23:39,391 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2022-03-20 12:23:39,391 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 226 transitions. [2022-03-20 12:23:39,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-20 12:23:39,392 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:39,393 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:23:39,393 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 12:23:39,393 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:39,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:39,393 INFO L85 PathProgramCache]: Analyzing trace with hash 933529472, now seen corresponding path program 1 times [2022-03-20 12:23:39,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:39,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252809253] [2022-03-20 12:23:39,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:39,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:39,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:39,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:39,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252809253] [2022-03-20 12:23:39,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252809253] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:39,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:39,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:39,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2647346] [2022-03-20 12:23:39,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:39,520 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:39,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:39,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:39,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:39,521 INFO L87 Difference]: Start difference. First operand 150 states and 226 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2022-03-20 12:23:40,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:42,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:45,443 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 [] [2022-03-20 12:23:45,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:23:45,894 INFO L93 Difference]: Finished difference Result 389 states and 594 transitions. [2022-03-20 12:23:45,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:23:45,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 62 [2022-03-20 12:23:45,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:23:45,895 INFO L225 Difference]: With dead ends: 389 [2022-03-20 12:23:45,895 INFO L226 Difference]: Without dead ends: 265 [2022-03-20 12:23:45,896 INFO L912 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 [2022-03-20 12:23:45,897 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 143 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:23:45,898 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 324 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-20 12:23:45,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-03-20 12:23:45,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 162. [2022-03-20 12:23:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5222929936305734) internal successors, (239), 157 states have internal predecessors, (239), 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) [2022-03-20 12:23:45,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 243 transitions. [2022-03-20 12:23:45,910 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 243 transitions. Word has length 62 [2022-03-20 12:23:45,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:23:45,910 INFO L478 AbstractCegarLoop]: Abstraction has 162 states and 243 transitions. [2022-03-20 12:23:45,911 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2022-03-20 12:23:45,911 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 243 transitions. [2022-03-20 12:23:45,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-20 12:23:45,912 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:45,912 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:23:45,912 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 12:23:45,912 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:45,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:45,912 INFO L85 PathProgramCache]: Analyzing trace with hash -533490752, now seen corresponding path program 1 times [2022-03-20 12:23:45,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:45,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353392741] [2022-03-20 12:23:45,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:45,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:46,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:46,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:46,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353392741] [2022-03-20 12:23:46,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353392741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:46,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:46,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:46,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43549114] [2022-03-20 12:23:46,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:46,041 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:46,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:46,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:46,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:46,042 INFO L87 Difference]: Start difference. First operand 162 states and 243 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2022-03-20 12:23:47,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:49,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:51,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:52,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:23:52,160 INFO L93 Difference]: Finished difference Result 312 states and 469 transitions. [2022-03-20 12:23:52,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:23:52,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 62 [2022-03-20 12:23:52,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:23:52,162 INFO L225 Difference]: With dead ends: 312 [2022-03-20 12:23:52,162 INFO L226 Difference]: Without dead ends: 176 [2022-03-20 12:23:52,163 INFO L912 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 [2022-03-20 12:23:52,163 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:23:52,163 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 471 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-20 12:23:52,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-03-20 12:23:52,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 162. [2022-03-20 12:23:52,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.515923566878981) internal successors, (238), 157 states have internal predecessors, (238), 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) [2022-03-20 12:23:52,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 242 transitions. [2022-03-20 12:23:52,174 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 242 transitions. Word has length 62 [2022-03-20 12:23:52,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:23:52,174 INFO L478 AbstractCegarLoop]: Abstraction has 162 states and 242 transitions. [2022-03-20 12:23:52,174 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2022-03-20 12:23:52,174 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 242 transitions. [2022-03-20 12:23:52,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-20 12:23:52,175 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:52,175 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:23:52,175 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 12:23:52,175 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:52,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:52,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1391401696, now seen corresponding path program 1 times [2022-03-20 12:23:52,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:52,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364675664] [2022-03-20 12:23:52,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:52,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:52,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:52,289 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:52,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:52,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364675664] [2022-03-20 12:23:52,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364675664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:52,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:52,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:52,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726468493] [2022-03-20 12:23:52,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:52,290 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:52,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:52,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:52,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:52,291 INFO L87 Difference]: Start difference. First operand 162 states and 242 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2022-03-20 12:23:54,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:56,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:57,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:23:57,352 INFO L93 Difference]: Finished difference Result 400 states and 608 transitions. [2022-03-20 12:23:57,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:23:57,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 62 [2022-03-20 12:23:57,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:23:57,353 INFO L225 Difference]: With dead ends: 400 [2022-03-20 12:23:57,354 INFO L226 Difference]: Without dead ends: 264 [2022-03-20 12:23:57,354 INFO L912 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 [2022-03-20 12:23:57,355 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 136 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:23:57,355 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 326 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 12:23:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-03-20 12:23:57,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 168. [2022-03-20 12:23:57,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 163 states have (on average 1.521472392638037) internal successors, (248), 163 states have internal predecessors, (248), 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) [2022-03-20 12:23:57,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 252 transitions. [2022-03-20 12:23:57,360 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 252 transitions. Word has length 62 [2022-03-20 12:23:57,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:23:57,360 INFO L478 AbstractCegarLoop]: Abstraction has 168 states and 252 transitions. [2022-03-20 12:23:57,360 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2022-03-20 12:23:57,361 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 252 transitions. [2022-03-20 12:23:57,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 12:23:57,361 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:57,362 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:23:57,362 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 12:23:57,362 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:57,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:57,362 INFO L85 PathProgramCache]: Analyzing trace with hash 635381492, now seen corresponding path program 1 times [2022-03-20 12:23:57,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:57,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758279659] [2022-03-20 12:23:57,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:57,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:57,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:57,472 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:57,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:57,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758279659] [2022-03-20 12:23:57,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758279659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:57,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:57,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:57,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032760487] [2022-03-20 12:23:57,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:57,473 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:57,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:57,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:57,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:57,474 INFO L87 Difference]: Start difference. First operand 168 states and 252 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) [2022-03-20 12:23:59,490 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 [] [2022-03-20 12:23:59,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:23:59,796 INFO L93 Difference]: Finished difference Result 323 states and 488 transitions. [2022-03-20 12:23:59,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:23:59,796 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 63 [2022-03-20 12:23:59,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:23:59,797 INFO L225 Difference]: With dead ends: 323 [2022-03-20 12:23:59,797 INFO L226 Difference]: Without dead ends: 181 [2022-03-20 12:23:59,798 INFO L912 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 [2022-03-20 12:23:59,798 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 22 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:23:59,798 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 473 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 346 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:23:59,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-03-20 12:23:59,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 168. [2022-03-20 12:23:59,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 163 states have (on average 1.5153374233128833) internal successors, (247), 163 states have internal predecessors, (247), 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) [2022-03-20 12:23:59,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 251 transitions. [2022-03-20 12:23:59,802 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 251 transitions. Word has length 63 [2022-03-20 12:23:59,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:23:59,803 INFO L478 AbstractCegarLoop]: Abstraction has 168 states and 251 transitions. [2022-03-20 12:23:59,803 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) [2022-03-20 12:23:59,803 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 251 transitions. [2022-03-20 12:23:59,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 12:23:59,803 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:59,804 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:23:59,804 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 12:23:59,804 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:59,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:59,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1769701380, now seen corresponding path program 1 times [2022-03-20 12:23:59,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:59,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257088963] [2022-03-20 12:23:59,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:59,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:59,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:59,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:59,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257088963] [2022-03-20 12:23:59,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257088963] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:59,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:59,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:59,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809338482] [2022-03-20 12:23:59,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:59,900 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:59,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:59,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:59,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:59,901 INFO L87 Difference]: Start difference. First operand 168 states and 251 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) [2022-03-20 12:24:02,589 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 [] [2022-03-20 12:24:03,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:03,393 INFO L93 Difference]: Finished difference Result 323 states and 487 transitions. [2022-03-20 12:24:03,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:03,394 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 64 [2022-03-20 12:24:03,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:03,395 INFO L225 Difference]: With dead ends: 323 [2022-03-20 12:24:03,395 INFO L226 Difference]: Without dead ends: 181 [2022-03-20 12:24:03,395 INFO L912 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 [2022-03-20 12:24:03,396 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 20 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:03,396 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 473 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 349 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 12:24:03,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-03-20 12:24:03,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 168. [2022-03-20 12:24:03,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 163 states have (on average 1.50920245398773) internal successors, (246), 163 states have internal predecessors, (246), 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) [2022-03-20 12:24:03,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 250 transitions. [2022-03-20 12:24:03,401 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 250 transitions. Word has length 64 [2022-03-20 12:24:03,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:03,401 INFO L478 AbstractCegarLoop]: Abstraction has 168 states and 250 transitions. [2022-03-20 12:24:03,401 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) [2022-03-20 12:24:03,401 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 250 transitions. [2022-03-20 12:24:03,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 12:24:03,402 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:03,402 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:03,402 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 12:24:03,402 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:03,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:03,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1766625399, now seen corresponding path program 1 times [2022-03-20 12:24:03,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:03,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491010640] [2022-03-20 12:24:03,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:03,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:03,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:03,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:03,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491010640] [2022-03-20 12:24:03,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491010640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:03,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:03,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:03,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012967918] [2022-03-20 12:24:03,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:03,518 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:03,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:03,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:03,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:03,519 INFO L87 Difference]: Start difference. First operand 168 states and 250 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) [2022-03-20 12:24:05,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:07,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:10,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:10,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:10,455 INFO L93 Difference]: Finished difference Result 313 states and 473 transitions. [2022-03-20 12:24:10,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:10,455 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 65 [2022-03-20 12:24:10,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:10,456 INFO L225 Difference]: With dead ends: 313 [2022-03-20 12:24:10,456 INFO L226 Difference]: Without dead ends: 171 [2022-03-20 12:24:10,456 INFO L912 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 [2022-03-20 12:24:10,457 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 11 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:10,457 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 487 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-03-20 12:24:10,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-03-20 12:24:10,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 168. [2022-03-20 12:24:10,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 163 states have (on average 1.5030674846625767) internal successors, (245), 163 states have internal predecessors, (245), 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) [2022-03-20 12:24:10,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 249 transitions. [2022-03-20 12:24:10,461 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 249 transitions. Word has length 65 [2022-03-20 12:24:10,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:10,461 INFO L478 AbstractCegarLoop]: Abstraction has 168 states and 249 transitions. [2022-03-20 12:24:10,461 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) [2022-03-20 12:24:10,461 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 249 transitions. [2022-03-20 12:24:10,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 12:24:10,462 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:10,462 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:10,462 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 12:24:10,462 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:10,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:10,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1844900122, now seen corresponding path program 1 times [2022-03-20 12:24:10,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:10,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738396434] [2022-03-20 12:24:10,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:10,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:10,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:10,549 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:10,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:10,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738396434] [2022-03-20 12:24:10,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738396434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:10,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:10,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:10,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553333377] [2022-03-20 12:24:10,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:10,550 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:10,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:10,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:10,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:10,551 INFO L87 Difference]: Start difference. First operand 168 states and 249 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) [2022-03-20 12:24:11,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:13,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:16,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:16,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:16,624 INFO L93 Difference]: Finished difference Result 425 states and 644 transitions. [2022-03-20 12:24:16,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:16,624 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 65 [2022-03-20 12:24:16,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:16,625 INFO L225 Difference]: With dead ends: 425 [2022-03-20 12:24:16,625 INFO L226 Difference]: Without dead ends: 283 [2022-03-20 12:24:16,626 INFO L912 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 [2022-03-20 12:24:16,626 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 115 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:16,626 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 328 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 12:24:16,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-03-20 12:24:16,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 208. [2022-03-20 12:24:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5566502463054188) internal successors, (316), 203 states have internal predecessors, (316), 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) [2022-03-20 12:24:16,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 320 transitions. [2022-03-20 12:24:16,631 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 320 transitions. Word has length 65 [2022-03-20 12:24:16,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:16,631 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 320 transitions. [2022-03-20 12:24:16,632 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) [2022-03-20 12:24:16,632 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 320 transitions. [2022-03-20 12:24:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 12:24:16,632 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:16,632 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:16,632 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 12:24:16,633 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:16,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:16,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1356378731, now seen corresponding path program 1 times [2022-03-20 12:24:16,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:16,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149446565] [2022-03-20 12:24:16,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:16,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:16,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:16,717 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:16,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:16,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149446565] [2022-03-20 12:24:16,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149446565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:16,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:16,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:16,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838915218] [2022-03-20 12:24:16,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:16,718 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:16,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:16,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:16,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:16,718 INFO L87 Difference]: Start difference. First operand 208 states and 320 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) [2022-03-20 12:24:20,462 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 [] [2022-03-20 12:24:20,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:20,840 INFO L93 Difference]: Finished difference Result 432 states and 673 transitions. [2022-03-20 12:24:20,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:20,840 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 66 [2022-03-20 12:24:20,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:20,842 INFO L225 Difference]: With dead ends: 432 [2022-03-20 12:24:20,842 INFO L226 Difference]: Without dead ends: 250 [2022-03-20 12:24:20,842 INFO L912 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 [2022-03-20 12:24:20,842 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 32 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:20,843 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 487 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 12:24:20,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-03-20 12:24:20,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 230. [2022-03-20 12:24:20,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.5644444444444445) internal successors, (352), 225 states have internal predecessors, (352), 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) [2022-03-20 12:24:20,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 356 transitions. [2022-03-20 12:24:20,847 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 356 transitions. Word has length 66 [2022-03-20 12:24:20,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:20,848 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 356 transitions. [2022-03-20 12:24:20,848 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) [2022-03-20 12:24:20,848 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 356 transitions. [2022-03-20 12:24:20,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-03-20 12:24:20,848 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:20,848 INFO L499 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:20,848 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 12:24:20,849 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:20,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:20,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1436024647, now seen corresponding path program 1 times [2022-03-20 12:24:20,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:20,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437487612] [2022-03-20 12:24:20,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:20,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:20,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:20,944 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:20,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:20,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437487612] [2022-03-20 12:24:20,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437487612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:20,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:20,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:20,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175337761] [2022-03-20 12:24:20,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:20,945 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:20,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:20,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:20,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:20,945 INFO L87 Difference]: Start difference. First operand 230 states and 356 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 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) [2022-03-20 12:24:24,399 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 [] [2022-03-20 12:24:26,421 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 [] [2022-03-20 12:24:26,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:26,766 INFO L93 Difference]: Finished difference Result 454 states and 708 transitions. [2022-03-20 12:24:26,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:26,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 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 79 [2022-03-20 12:24:26,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:26,768 INFO L225 Difference]: With dead ends: 454 [2022-03-20 12:24:26,768 INFO L226 Difference]: Without dead ends: 250 [2022-03-20 12:24:26,768 INFO L912 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 [2022-03-20 12:24:26,769 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 37 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:26,769 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 487 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 387 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 12:24:26,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-03-20 12:24:26,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 230. [2022-03-20 12:24:26,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.56) internal successors, (351), 225 states have internal predecessors, (351), 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) [2022-03-20 12:24:26,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 355 transitions. [2022-03-20 12:24:26,774 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 355 transitions. Word has length 79 [2022-03-20 12:24:26,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:26,774 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 355 transitions. [2022-03-20 12:24:26,774 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 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) [2022-03-20 12:24:26,774 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 355 transitions. [2022-03-20 12:24:26,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-20 12:24:26,775 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:26,775 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:26,775 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 12:24:26,775 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:26,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:26,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1905042341, now seen corresponding path program 1 times [2022-03-20 12:24:26,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:26,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659769737] [2022-03-20 12:24:26,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:26,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:26,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:26,896 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:24:26,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:26,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659769737] [2022-03-20 12:24:26,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659769737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:26,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:26,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:26,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783747765] [2022-03-20 12:24:26,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:26,897 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:26,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:26,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:26,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:26,897 INFO L87 Difference]: Start difference. First operand 230 states and 355 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-03-20 12:24:31,469 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 [] [2022-03-20 12:24:31,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:31,996 INFO L93 Difference]: Finished difference Result 463 states and 722 transitions. [2022-03-20 12:24:31,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:31,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 80 [2022-03-20 12:24:31,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:31,997 INFO L225 Difference]: With dead ends: 463 [2022-03-20 12:24:31,997 INFO L226 Difference]: Without dead ends: 259 [2022-03-20 12:24:31,998 INFO L912 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 [2022-03-20 12:24:31,998 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 21 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:31,998 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 558 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 12:24:31,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-20 12:24:32,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 246. [2022-03-20 12:24:32,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5601659751037344) internal successors, (376), 241 states have internal predecessors, (376), 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) [2022-03-20 12:24:32,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 380 transitions. [2022-03-20 12:24:32,003 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 380 transitions. Word has length 80 [2022-03-20 12:24:32,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:32,003 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 380 transitions. [2022-03-20 12:24:32,003 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-03-20 12:24:32,003 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 380 transitions. [2022-03-20 12:24:32,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-20 12:24:32,004 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:32,004 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1] [2022-03-20 12:24:32,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 12:24:32,004 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:32,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:32,004 INFO L85 PathProgramCache]: Analyzing trace with hash 649563131, now seen corresponding path program 1 times [2022-03-20 12:24:32,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:32,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587368035] [2022-03-20 12:24:32,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:32,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:32,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:32,119 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:32,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:32,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587368035] [2022-03-20 12:24:32,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587368035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:32,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:32,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:32,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235369525] [2022-03-20 12:24:32,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:32,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:32,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:32,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:32,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:32,120 INFO L87 Difference]: Start difference. First operand 246 states and 380 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) [2022-03-20 12:24:33,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:34,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:36,903 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 [] [2022-03-20 12:24:37,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:37,322 INFO L93 Difference]: Finished difference Result 562 states and 876 transitions. [2022-03-20 12:24:37,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:37,323 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 80 [2022-03-20 12:24:37,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:37,324 INFO L225 Difference]: With dead ends: 562 [2022-03-20 12:24:37,324 INFO L226 Difference]: Without dead ends: 342 [2022-03-20 12:24:37,325 INFO L912 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 [2022-03-20 12:24:37,325 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 137 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:37,326 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 328 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 12:24:37,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-03-20 12:24:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 246. [2022-03-20 12:24:37,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5477178423236515) internal successors, (373), 241 states have internal predecessors, (373), 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) [2022-03-20 12:24:37,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 377 transitions. [2022-03-20 12:24:37,332 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 377 transitions. Word has length 80 [2022-03-20 12:24:37,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:37,332 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 377 transitions. [2022-03-20 12:24:37,332 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) [2022-03-20 12:24:37,333 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 377 transitions. [2022-03-20 12:24:37,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-20 12:24:37,333 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:37,333 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:37,333 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 12:24:37,334 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:37,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:37,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1126145644, now seen corresponding path program 1 times [2022-03-20 12:24:37,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:37,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604959407] [2022-03-20 12:24:37,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:37,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:37,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:37,444 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 12:24:37,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:37,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604959407] [2022-03-20 12:24:37,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604959407] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:37,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:37,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 12:24:37,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808939833] [2022-03-20 12:24:37,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:37,445 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 12:24:37,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:37,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 12:24:37,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:24:37,446 INFO L87 Difference]: Start difference. First operand 246 states and 377 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 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) [2022-03-20 12:24:39,262 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 [] [2022-03-20 12:24:40,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:42,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:44,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:44,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:44,386 INFO L93 Difference]: Finished difference Result 475 states and 736 transitions. [2022-03-20 12:24:44,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 12:24:44,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 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 81 [2022-03-20 12:24:44,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:44,388 INFO L225 Difference]: With dead ends: 475 [2022-03-20 12:24:44,388 INFO L226 Difference]: Without dead ends: 255 [2022-03-20 12:24:44,388 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 12:24:44,389 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 3 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:44,389 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 609 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 429 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-03-20 12:24:44,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-20 12:24:44,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2022-03-20 12:24:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.536) internal successors, (384), 250 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) [2022-03-20 12:24:44,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 388 transitions. [2022-03-20 12:24:44,394 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 388 transitions. Word has length 81 [2022-03-20 12:24:44,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:44,394 INFO L478 AbstractCegarLoop]: Abstraction has 255 states and 388 transitions. [2022-03-20 12:24:44,394 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 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) [2022-03-20 12:24:44,394 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 388 transitions. [2022-03-20 12:24:44,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 12:24:44,394 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:44,394 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:44,395 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 12:24:44,395 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:44,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:44,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1105573632, now seen corresponding path program 1 times [2022-03-20 12:24:44,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:44,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104166683] [2022-03-20 12:24:44,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:44,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:44,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:44,477 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:44,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:44,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104166683] [2022-03-20 12:24:44,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104166683] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:44,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:44,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:44,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739929137] [2022-03-20 12:24:44,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:44,478 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:44,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:44,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:44,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:44,479 INFO L87 Difference]: Start difference. First operand 255 states and 388 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) [2022-03-20 12:24:48,190 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 [] [2022-03-20 12:24:48,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:48,506 INFO L93 Difference]: Finished difference Result 511 states and 781 transitions. [2022-03-20 12:24:48,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:48,506 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 82 [2022-03-20 12:24:48,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:48,508 INFO L225 Difference]: With dead ends: 511 [2022-03-20 12:24:48,508 INFO L226 Difference]: Without dead ends: 282 [2022-03-20 12:24:48,508 INFO L912 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 [2022-03-20 12:24:48,508 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 38 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:48,509 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 491 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 12:24:48,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-03-20 12:24:48,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 255. [2022-03-20 12:24:48,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.532) internal successors, (383), 250 states have internal predecessors, (383), 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) [2022-03-20 12:24:48,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 387 transitions. [2022-03-20 12:24:48,513 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 387 transitions. Word has length 82 [2022-03-20 12:24:48,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:48,514 INFO L478 AbstractCegarLoop]: Abstraction has 255 states and 387 transitions. [2022-03-20 12:24:48,514 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) [2022-03-20 12:24:48,514 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 387 transitions. [2022-03-20 12:24:48,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 12:24:48,514 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:48,514 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:48,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 12:24:48,515 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:48,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:48,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1057574416, now seen corresponding path program 1 times [2022-03-20 12:24:48,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:48,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700876411] [2022-03-20 12:24:48,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:48,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:48,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:48,623 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:48,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:48,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700876411] [2022-03-20 12:24:48,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700876411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:48,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:48,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:48,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394074212] [2022-03-20 12:24:48,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:48,624 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:48,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:48,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:48,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:48,624 INFO L87 Difference]: Start difference. First operand 255 states and 387 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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) [2022-03-20 12:24:49,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:51,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:53,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:53,636 INFO L93 Difference]: Finished difference Result 589 states and 901 transitions. [2022-03-20 12:24:53,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:53,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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 83 [2022-03-20 12:24:53,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:53,638 INFO L225 Difference]: With dead ends: 589 [2022-03-20 12:24:53,638 INFO L226 Difference]: Without dead ends: 360 [2022-03-20 12:24:53,639 INFO L912 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 [2022-03-20 12:24:53,639 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 139 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:53,639 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 328 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 12:24:53,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-03-20 12:24:53,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 255. [2022-03-20 12:24:53,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.516) internal successors, (379), 250 states have internal predecessors, (379), 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) [2022-03-20 12:24:53,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 383 transitions. [2022-03-20 12:24:53,645 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 383 transitions. Word has length 83 [2022-03-20 12:24:53,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:53,645 INFO L478 AbstractCegarLoop]: Abstraction has 255 states and 383 transitions. [2022-03-20 12:24:53,645 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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) [2022-03-20 12:24:53,646 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 383 transitions. [2022-03-20 12:24:53,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:24:53,646 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:53,648 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:53,648 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 12:24:53,648 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:53,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:53,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1013538243, now seen corresponding path program 1 times [2022-03-20 12:24:53,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:53,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382605213] [2022-03-20 12:24:53,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:53,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:53,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:53,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:53,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382605213] [2022-03-20 12:24:53,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382605213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:53,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:53,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:53,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805740283] [2022-03-20 12:24:53,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:53,758 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:53,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:53,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:53,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:53,758 INFO L87 Difference]: Start difference. First operand 255 states and 383 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) [2022-03-20 12:24:56,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:58,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:59,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:59,575 INFO L93 Difference]: Finished difference Result 501 states and 758 transitions. [2022-03-20 12:24:59,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:59,575 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 84 [2022-03-20 12:24:59,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:59,576 INFO L225 Difference]: With dead ends: 501 [2022-03-20 12:24:59,576 INFO L226 Difference]: Without dead ends: 272 [2022-03-20 12:24:59,577 INFO L912 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 [2022-03-20 12:24:59,577 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 33 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:59,578 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 493 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 381 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 12:24:59,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-03-20 12:24:59,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 255. [2022-03-20 12:24:59,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.512) internal successors, (378), 250 states have internal predecessors, (378), 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) [2022-03-20 12:24:59,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 382 transitions. [2022-03-20 12:24:59,582 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 382 transitions. Word has length 84 [2022-03-20 12:24:59,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:59,582 INFO L478 AbstractCegarLoop]: Abstraction has 255 states and 382 transitions. [2022-03-20 12:24:59,583 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) [2022-03-20 12:24:59,583 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 382 transitions. [2022-03-20 12:24:59,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-20 12:24:59,583 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:59,583 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:59,583 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 12:24:59,584 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:59,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:59,584 INFO L85 PathProgramCache]: Analyzing trace with hash 765154996, now seen corresponding path program 1 times [2022-03-20 12:24:59,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:59,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344228740] [2022-03-20 12:24:59,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:59,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:59,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:59,710 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:24:59,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:59,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344228740] [2022-03-20 12:24:59,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344228740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:59,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:59,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:59,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577458553] [2022-03-20 12:24:59,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:59,711 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:59,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:59,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:59,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:59,712 INFO L87 Difference]: Start difference. First operand 255 states and 382 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-03-20 12:25:02,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:03,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:05,664 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 [] [2022-03-20 12:25:06,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:06,118 INFO L93 Difference]: Finished difference Result 591 states and 893 transitions. [2022-03-20 12:25:06,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:06,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 88 [2022-03-20 12:25:06,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:06,129 INFO L225 Difference]: With dead ends: 591 [2022-03-20 12:25:06,129 INFO L226 Difference]: Without dead ends: 362 [2022-03-20 12:25:06,130 INFO L912 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 [2022-03-20 12:25:06,132 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 80 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:06,133 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 483 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 532 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-20 12:25:06,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-03-20 12:25:06,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 297. [2022-03-20 12:25:06,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 292 states have (on average 1.5376712328767124) internal successors, (449), 292 states have internal predecessors, (449), 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) [2022-03-20 12:25:06,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 453 transitions. [2022-03-20 12:25:06,155 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 453 transitions. Word has length 88 [2022-03-20 12:25:06,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:06,155 INFO L478 AbstractCegarLoop]: Abstraction has 297 states and 453 transitions. [2022-03-20 12:25:06,155 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-03-20 12:25:06,155 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 453 transitions. [2022-03-20 12:25:06,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-20 12:25:06,156 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:06,156 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:06,156 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 12:25:06,156 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:06,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:06,157 INFO L85 PathProgramCache]: Analyzing trace with hash -2068232301, now seen corresponding path program 1 times [2022-03-20 12:25:06,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:06,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050298219] [2022-03-20 12:25:06,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:06,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:06,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:06,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:06,271 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:25:06,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:06,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050298219] [2022-03-20 12:25:06,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050298219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:06,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:06,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:06,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557992496] [2022-03-20 12:25:06,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:06,272 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:06,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:06,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:06,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:06,272 INFO L87 Difference]: Start difference. First operand 297 states and 453 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-03-20 12:25:08,734 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 [] [2022-03-20 12:25:11,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:11,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:11,893 INFO L93 Difference]: Finished difference Result 673 states and 1033 transitions. [2022-03-20 12:25:11,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:11,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 88 [2022-03-20 12:25:11,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:11,895 INFO L225 Difference]: With dead ends: 673 [2022-03-20 12:25:11,895 INFO L226 Difference]: Without dead ends: 402 [2022-03-20 12:25:11,896 INFO L912 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 [2022-03-20 12:25:11,896 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 112 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:11,896 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 342 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 12:25:11,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-03-20 12:25:11,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 277. [2022-03-20 12:25:11,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.5477941176470589) internal successors, (421), 272 states have internal predecessors, (421), 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) [2022-03-20 12:25:11,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 425 transitions. [2022-03-20 12:25:11,901 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 425 transitions. Word has length 88 [2022-03-20 12:25:11,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:11,902 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 425 transitions. [2022-03-20 12:25:11,902 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-03-20 12:25:11,902 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 425 transitions. [2022-03-20 12:25:11,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-20 12:25:11,903 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:11,903 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:11,903 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 12:25:11,903 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:11,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:11,903 INFO L85 PathProgramCache]: Analyzing trace with hash 326393211, now seen corresponding path program 1 times [2022-03-20 12:25:11,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:11,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221527771] [2022-03-20 12:25:11,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:11,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:12,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:12,010 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:25:12,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:12,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221527771] [2022-03-20 12:25:12,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221527771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:12,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:12,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:12,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705435171] [2022-03-20 12:25:12,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:12,011 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:12,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:12,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:12,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:12,012 INFO L87 Difference]: Start difference. First operand 277 states and 425 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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) [2022-03-20 12:25:13,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:15,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:17,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:18,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:18,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:18,925 INFO L93 Difference]: Finished difference Result 632 states and 974 transitions. [2022-03-20 12:25:18,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:18,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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 116 [2022-03-20 12:25:18,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:18,927 INFO L225 Difference]: With dead ends: 632 [2022-03-20 12:25:18,927 INFO L226 Difference]: Without dead ends: 381 [2022-03-20 12:25:18,928 INFO L912 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 [2022-03-20 12:25:18,928 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 86 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:18,928 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 489 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 525 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-20 12:25:18,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-03-20 12:25:18,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 311. [2022-03-20 12:25:18,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 306 states have (on average 1.5588235294117647) internal successors, (477), 306 states have internal predecessors, (477), 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) [2022-03-20 12:25:18,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 481 transitions. [2022-03-20 12:25:18,934 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 481 transitions. Word has length 116 [2022-03-20 12:25:18,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:18,934 INFO L478 AbstractCegarLoop]: Abstraction has 311 states and 481 transitions. [2022-03-20 12:25:18,934 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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) [2022-03-20 12:25:18,934 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 481 transitions. [2022-03-20 12:25:18,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-20 12:25:18,935 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:18,935 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:18,935 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 12:25:18,935 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:18,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:18,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1344120358, now seen corresponding path program 1 times [2022-03-20 12:25:18,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:18,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447182066] [2022-03-20 12:25:18,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:18,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:19,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:19,063 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 12:25:19,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:19,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447182066] [2022-03-20 12:25:19,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447182066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:19,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:19,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:19,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570578314] [2022-03-20 12:25:19,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:19,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:19,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:19,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:19,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:19,064 INFO L87 Difference]: Start difference. First operand 311 states and 481 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) [2022-03-20 12:25:21,071 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 [] [2022-03-20 12:25:21,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:21,510 INFO L93 Difference]: Finished difference Result 653 states and 1013 transitions. [2022-03-20 12:25:21,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:21,512 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 116 [2022-03-20 12:25:21,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:21,513 INFO L225 Difference]: With dead ends: 653 [2022-03-20 12:25:21,513 INFO L226 Difference]: Without dead ends: 368 [2022-03-20 12:25:21,514 INFO L912 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 [2022-03-20 12:25:21,514 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 36 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:21,514 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 585 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:25:21,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-03-20 12:25:21,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 335. [2022-03-20 12:25:21,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 330 states have (on average 1.5606060606060606) internal successors, (515), 330 states have internal predecessors, (515), 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) [2022-03-20 12:25:21,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 519 transitions. [2022-03-20 12:25:21,520 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 519 transitions. Word has length 116 [2022-03-20 12:25:21,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:21,520 INFO L478 AbstractCegarLoop]: Abstraction has 335 states and 519 transitions. [2022-03-20 12:25:21,520 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) [2022-03-20 12:25:21,520 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 519 transitions. [2022-03-20 12:25:21,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-20 12:25:21,521 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:21,521 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:21,521 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 12:25:21,521 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:21,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:21,522 INFO L85 PathProgramCache]: Analyzing trace with hash -676854904, now seen corresponding path program 1 times [2022-03-20 12:25:21,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:21,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432234336] [2022-03-20 12:25:21,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:21,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:21,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:21,616 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-20 12:25:21,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:21,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432234336] [2022-03-20 12:25:21,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432234336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:21,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:21,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:21,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106831037] [2022-03-20 12:25:21,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:21,617 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:21,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:21,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:21,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:21,618 INFO L87 Difference]: Start difference. First operand 335 states and 519 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) [2022-03-20 12:25:23,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:25,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:27,936 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 [] [2022-03-20 12:25:28,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:28,384 INFO L93 Difference]: Finished difference Result 717 states and 1109 transitions. [2022-03-20 12:25:28,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:28,385 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 121 [2022-03-20 12:25:28,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:28,386 INFO L225 Difference]: With dead ends: 717 [2022-03-20 12:25:28,386 INFO L226 Difference]: Without dead ends: 408 [2022-03-20 12:25:28,387 INFO L912 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 [2022-03-20 12:25:28,387 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 140 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:28,387 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 328 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 465 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-20 12:25:28,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-03-20 12:25:28,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 335. [2022-03-20 12:25:28,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 330 states have (on average 1.5424242424242425) internal successors, (509), 330 states have internal predecessors, (509), 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) [2022-03-20 12:25:28,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 513 transitions. [2022-03-20 12:25:28,393 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 513 transitions. Word has length 121 [2022-03-20 12:25:28,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:28,393 INFO L478 AbstractCegarLoop]: Abstraction has 335 states and 513 transitions. [2022-03-20 12:25:28,394 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) [2022-03-20 12:25:28,394 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 513 transitions. [2022-03-20 12:25:28,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-20 12:25:28,394 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:28,395 INFO L499 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] [2022-03-20 12:25:28,395 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 12:25:28,395 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:28,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:28,396 INFO L85 PathProgramCache]: Analyzing trace with hash -494174528, now seen corresponding path program 1 times [2022-03-20 12:25:28,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:28,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834375471] [2022-03-20 12:25:28,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:28,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:28,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:28,542 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:25:28,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:28,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834375471] [2022-03-20 12:25:28,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834375471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:28,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:28,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:28,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985872816] [2022-03-20 12:25:28,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:28,543 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:28,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:28,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:28,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:28,543 INFO L87 Difference]: Start difference. First operand 335 states and 513 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) [2022-03-20 12:25:29,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:31,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:33,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:35,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:35,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:35,789 INFO L93 Difference]: Finished difference Result 757 states and 1165 transitions. [2022-03-20 12:25:35,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:35,789 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 [2022-03-20 12:25:35,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:35,791 INFO L225 Difference]: With dead ends: 757 [2022-03-20 12:25:35,791 INFO L226 Difference]: Without dead ends: 448 [2022-03-20 12:25:35,791 INFO L912 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 [2022-03-20 12:25:35,792 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 113 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:35,792 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 328 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 466 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-20 12:25:35,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-03-20 12:25:35,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 372. [2022-03-20 12:25:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 367 states have (on average 1.555858310626703) internal successors, (571), 367 states have internal predecessors, (571), 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) [2022-03-20 12:25:35,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 575 transitions. [2022-03-20 12:25:35,798 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 575 transitions. Word has length 121 [2022-03-20 12:25:35,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:35,798 INFO L478 AbstractCegarLoop]: Abstraction has 372 states and 575 transitions. [2022-03-20 12:25:35,798 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) [2022-03-20 12:25:35,798 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 575 transitions. [2022-03-20 12:25:35,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 12:25:35,799 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:35,799 INFO L499 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] [2022-03-20 12:25:35,799 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 12:25:35,799 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:35,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:35,800 INFO L85 PathProgramCache]: Analyzing trace with hash 208718188, now seen corresponding path program 1 times [2022-03-20 12:25:35,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:35,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918858230] [2022-03-20 12:25:35,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:35,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:35,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:35,888 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:25:35,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:35,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918858230] [2022-03-20 12:25:35,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918858230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:35,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:35,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:35,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785922834] [2022-03-20 12:25:35,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:35,889 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:35,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:35,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:35,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:35,890 INFO L87 Difference]: Start difference. First operand 372 states and 575 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) [2022-03-20 12:25:37,897 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 [] [2022-03-20 12:25:38,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:38,312 INFO L93 Difference]: Finished difference Result 776 states and 1202 transitions. [2022-03-20 12:25:38,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:38,312 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 [2022-03-20 12:25:38,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:38,338 INFO L225 Difference]: With dead ends: 776 [2022-03-20 12:25:38,338 INFO L226 Difference]: Without dead ends: 430 [2022-03-20 12:25:38,339 INFO L912 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 [2022-03-20 12:25:38,339 INFO L913 BasicCegarLoop]: 172 mSDtfsCounter, 76 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:38,339 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 453 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:25:38,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-03-20 12:25:38,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 378. [2022-03-20 12:25:38,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5576407506702412) internal successors, (581), 373 states have internal predecessors, (581), 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) [2022-03-20 12:25:38,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 585 transitions. [2022-03-20 12:25:38,345 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 585 transitions. Word has length 122 [2022-03-20 12:25:38,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:38,345 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 585 transitions. [2022-03-20 12:25:38,345 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) [2022-03-20 12:25:38,345 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 585 transitions. [2022-03-20 12:25:38,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-03-20 12:25:38,346 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:38,346 INFO L499 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, 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] [2022-03-20 12:25:38,347 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 12:25:38,347 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:38,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:38,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1737440945, now seen corresponding path program 1 times [2022-03-20 12:25:38,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:38,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65816851] [2022-03-20 12:25:38,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:38,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:38,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:38,435 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:25:38,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:38,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65816851] [2022-03-20 12:25:38,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65816851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:38,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:38,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:38,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448890174] [2022-03-20 12:25:38,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:38,436 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:38,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:38,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:38,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:38,437 INFO L87 Difference]: Start difference. First operand 378 states and 585 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 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) [2022-03-20 12:25:40,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:42,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:44,522 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 [] [2022-03-20 12:25:44,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:44,924 INFO L93 Difference]: Finished difference Result 780 states and 1209 transitions. [2022-03-20 12:25:44,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:44,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 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 129 [2022-03-20 12:25:44,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:44,926 INFO L225 Difference]: With dead ends: 780 [2022-03-20 12:25:44,926 INFO L226 Difference]: Without dead ends: 428 [2022-03-20 12:25:44,927 INFO L912 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 [2022-03-20 12:25:44,927 INFO L913 BasicCegarLoop]: 174 mSDtfsCounter, 97 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:44,927 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 455 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 495 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-20 12:25:44,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-03-20 12:25:44,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 378. [2022-03-20 12:25:44,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5549597855227881) internal successors, (580), 373 states have internal predecessors, (580), 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) [2022-03-20 12:25:44,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 584 transitions. [2022-03-20 12:25:44,933 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 584 transitions. Word has length 129 [2022-03-20 12:25:44,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:44,933 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 584 transitions. [2022-03-20 12:25:44,933 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 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) [2022-03-20 12:25:44,933 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 584 transitions. [2022-03-20 12:25:44,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-03-20 12:25:44,934 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:44,934 INFO L499 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, 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] [2022-03-20 12:25:44,934 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 12:25:44,935 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:44,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:44,935 INFO L85 PathProgramCache]: Analyzing trace with hash 2028607312, now seen corresponding path program 1 times [2022-03-20 12:25:44,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:44,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789808485] [2022-03-20 12:25:44,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:44,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:45,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:45,025 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:25:45,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:45,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789808485] [2022-03-20 12:25:45,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789808485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:45,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:45,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:45,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457702910] [2022-03-20 12:25:45,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:45,026 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:45,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:45,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:45,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:45,027 INFO L87 Difference]: Start difference. First operand 378 states and 584 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 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) [2022-03-20 12:25:46,412 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 [] [2022-03-20 12:25:48,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:51,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:51,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:51,660 INFO L93 Difference]: Finished difference Result 751 states and 1166 transitions. [2022-03-20 12:25:51,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:51,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 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 129 [2022-03-20 12:25:51,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:51,667 INFO L225 Difference]: With dead ends: 751 [2022-03-20 12:25:51,667 INFO L226 Difference]: Without dead ends: 399 [2022-03-20 12:25:51,686 INFO L912 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 [2022-03-20 12:25:51,686 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 42 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:51,687 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 583 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-20 12:25:51,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-03-20 12:25:51,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 378. [2022-03-20 12:25:51,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.552278820375335) internal successors, (579), 373 states have internal predecessors, (579), 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) [2022-03-20 12:25:51,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 583 transitions. [2022-03-20 12:25:51,693 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 583 transitions. Word has length 129 [2022-03-20 12:25:51,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:51,693 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 583 transitions. [2022-03-20 12:25:51,694 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 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) [2022-03-20 12:25:51,694 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 583 transitions. [2022-03-20 12:25:51,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-20 12:25:51,694 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:51,694 INFO L499 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] [2022-03-20 12:25:51,695 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 12:25:51,695 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:51,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:51,695 INFO L85 PathProgramCache]: Analyzing trace with hash 85923637, now seen corresponding path program 1 times [2022-03-20 12:25:51,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:51,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448271462] [2022-03-20 12:25:51,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:51,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:51,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:25:51,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:51,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448271462] [2022-03-20 12:25:51,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448271462] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:51,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:51,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:51,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929558103] [2022-03-20 12:25:51,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:51,784 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:51,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:51,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:51,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:51,785 INFO L87 Difference]: Start difference. First operand 378 states and 583 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) [2022-03-20 12:25:53,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:55,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:56,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:58,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:58,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:58,535 INFO L93 Difference]: Finished difference Result 843 states and 1304 transitions. [2022-03-20 12:25:58,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:58,536 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 [2022-03-20 12:25:58,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:58,537 INFO L225 Difference]: With dead ends: 843 [2022-03-20 12:25:58,537 INFO L226 Difference]: Without dead ends: 491 [2022-03-20 12:25:58,538 INFO L912 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 [2022-03-20 12:25:58,538 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 106 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:58,538 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 329 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-03-20 12:25:58,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-03-20 12:25:58,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 421. [2022-03-20 12:25:58,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.5649038461538463) internal successors, (651), 416 states have internal predecessors, (651), 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) [2022-03-20 12:25:58,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 655 transitions. [2022-03-20 12:25:58,545 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 655 transitions. Word has length 130 [2022-03-20 12:25:58,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:58,545 INFO L478 AbstractCegarLoop]: Abstraction has 421 states and 655 transitions. [2022-03-20 12:25:58,545 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) [2022-03-20 12:25:58,545 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 655 transitions. [2022-03-20 12:25:58,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 12:25:58,546 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:58,546 INFO L499 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] [2022-03-20 12:25:58,546 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 12:25:58,546 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:58,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:58,547 INFO L85 PathProgramCache]: Analyzing trace with hash -506158837, now seen corresponding path program 1 times [2022-03-20 12:25:58,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:58,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702246826] [2022-03-20 12:25:58,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:58,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:58,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:58,661 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:25:58,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:58,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702246826] [2022-03-20 12:25:58,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702246826] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:58,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:58,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:58,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817169340] [2022-03-20 12:25:58,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:58,662 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:58,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:58,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:58,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:58,663 INFO L87 Difference]: Start difference. First operand 421 states and 655 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) [2022-03-20 12:26:00,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:02,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:04,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:05,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:05,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:05,794 INFO L93 Difference]: Finished difference Result 889 states and 1381 transitions. [2022-03-20 12:26:05,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:05,794 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 [2022-03-20 12:26:05,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:05,796 INFO L225 Difference]: With dead ends: 889 [2022-03-20 12:26:05,796 INFO L226 Difference]: Without dead ends: 492 [2022-03-20 12:26:05,796 INFO L912 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 [2022-03-20 12:26:05,797 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 107 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:05,797 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 344 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-20 12:26:05,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-03-20 12:26:05,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 423. [2022-03-20 12:26:05,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 418 states have (on average 1.5645933014354068) internal successors, (654), 418 states have internal predecessors, (654), 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) [2022-03-20 12:26:05,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 658 transitions. [2022-03-20 12:26:05,811 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 658 transitions. Word has length 131 [2022-03-20 12:26:05,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:05,812 INFO L478 AbstractCegarLoop]: Abstraction has 423 states and 658 transitions. [2022-03-20 12:26:05,812 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) [2022-03-20 12:26:05,812 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 658 transitions. [2022-03-20 12:26:05,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 12:26:05,812 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:05,813 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:05,813 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 12:26:05,813 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:05,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:05,813 INFO L85 PathProgramCache]: Analyzing trace with hash -445760410, now seen corresponding path program 1 times [2022-03-20 12:26:05,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:05,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038214357] [2022-03-20 12:26:05,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:05,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:05,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:05,923 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:05,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:05,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038214357] [2022-03-20 12:26:05,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038214357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:05,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:05,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:05,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928587668] [2022-03-20 12:26:05,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:05,924 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:05,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:05,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:05,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:05,924 INFO L87 Difference]: Start difference. First operand 423 states and 658 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-03-20 12:26:08,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:10,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:10,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:10,973 INFO L93 Difference]: Finished difference Result 864 states and 1345 transitions. [2022-03-20 12:26:10,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:10,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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 132 [2022-03-20 12:26:10,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:10,975 INFO L225 Difference]: With dead ends: 864 [2022-03-20 12:26:10,975 INFO L226 Difference]: Without dead ends: 467 [2022-03-20 12:26:10,976 INFO L912 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 [2022-03-20 12:26:10,976 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 90 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:10,976 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 487 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 504 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 12:26:10,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-03-20 12:26:10,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 423. [2022-03-20 12:26:10,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 418 states have (on average 1.562200956937799) internal successors, (653), 418 states have internal predecessors, (653), 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) [2022-03-20 12:26:10,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 657 transitions. [2022-03-20 12:26:10,983 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 657 transitions. Word has length 132 [2022-03-20 12:26:10,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:10,983 INFO L478 AbstractCegarLoop]: Abstraction has 423 states and 657 transitions. [2022-03-20 12:26:10,983 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-03-20 12:26:10,983 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 657 transitions. [2022-03-20 12:26:10,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 12:26:10,984 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:10,984 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:10,984 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 12:26:10,984 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:10,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:10,984 INFO L85 PathProgramCache]: Analyzing trace with hash 762157765, now seen corresponding path program 1 times [2022-03-20 12:26:10,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:10,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381626811] [2022-03-20 12:26:10,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:10,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:11,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:11,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:11,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381626811] [2022-03-20 12:26:11,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381626811] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:11,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:11,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:11,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983330714] [2022-03-20 12:26:11,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:11,079 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:11,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:11,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:11,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:11,080 INFO L87 Difference]: Start difference. First operand 423 states and 657 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-03-20 12:26:13,095 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 [] [2022-03-20 12:26:13,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:13,550 INFO L93 Difference]: Finished difference Result 889 states and 1378 transitions. [2022-03-20 12:26:13,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:13,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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 132 [2022-03-20 12:26:13,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:13,552 INFO L225 Difference]: With dead ends: 889 [2022-03-20 12:26:13,552 INFO L226 Difference]: Without dead ends: 492 [2022-03-20 12:26:13,553 INFO L912 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 [2022-03-20 12:26:13,553 INFO L913 BasicCegarLoop]: 122 mSDtfsCounter, 135 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:13,553 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 346 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:26:13,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-03-20 12:26:13,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 423. [2022-03-20 12:26:13,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 418 states have (on average 1.5478468899521531) internal successors, (647), 418 states have internal predecessors, (647), 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) [2022-03-20 12:26:13,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 651 transitions. [2022-03-20 12:26:13,561 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 651 transitions. Word has length 132 [2022-03-20 12:26:13,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:13,561 INFO L478 AbstractCegarLoop]: Abstraction has 423 states and 651 transitions. [2022-03-20 12:26:13,561 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-03-20 12:26:13,561 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 651 transitions. [2022-03-20 12:26:13,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-20 12:26:13,562 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:13,563 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:13,563 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 12:26:13,563 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:13,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:13,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1959211753, now seen corresponding path program 1 times [2022-03-20 12:26:13,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:13,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925026825] [2022-03-20 12:26:13,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:13,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:13,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:13,683 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:13,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:13,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925026825] [2022-03-20 12:26:13,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925026825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:13,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:13,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:13,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864631583] [2022-03-20 12:26:13,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:13,684 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:13,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:13,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:13,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:13,685 INFO L87 Difference]: Start difference. First operand 423 states and 651 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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) [2022-03-20 12:26:15,699 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 [] [2022-03-20 12:26:16,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:16,102 INFO L93 Difference]: Finished difference Result 854 states and 1318 transitions. [2022-03-20 12:26:16,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:16,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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 [2022-03-20 12:26:16,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:16,104 INFO L225 Difference]: With dead ends: 854 [2022-03-20 12:26:16,104 INFO L226 Difference]: Without dead ends: 457 [2022-03-20 12:26:16,104 INFO L912 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 [2022-03-20 12:26:16,104 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 80 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:16,105 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 475 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:26:16,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-03-20 12:26:16,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 423. [2022-03-20 12:26:16,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 418 states have (on average 1.5454545454545454) internal successors, (646), 418 states have internal predecessors, (646), 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) [2022-03-20 12:26:16,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 650 transitions. [2022-03-20 12:26:16,111 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 650 transitions. Word has length 134 [2022-03-20 12:26:16,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:16,111 INFO L478 AbstractCegarLoop]: Abstraction has 423 states and 650 transitions. [2022-03-20 12:26:16,111 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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) [2022-03-20 12:26:16,111 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 650 transitions. [2022-03-20 12:26:16,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-20 12:26:16,112 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:16,112 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:16,112 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 12:26:16,112 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:16,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:16,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1167559288, now seen corresponding path program 1 times [2022-03-20 12:26:16,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:16,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110947245] [2022-03-20 12:26:16,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:16,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:16,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:16,199 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:16,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:16,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110947245] [2022-03-20 12:26:16,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110947245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:16,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:16,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:16,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239136007] [2022-03-20 12:26:16,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:16,200 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:16,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:16,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:16,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:16,215 INFO L87 Difference]: Start difference. First operand 423 states and 650 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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) [2022-03-20 12:26:18,227 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 [] [2022-03-20 12:26:18,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:18,646 INFO L93 Difference]: Finished difference Result 879 states and 1351 transitions. [2022-03-20 12:26:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:18,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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 [2022-03-20 12:26:18,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:18,648 INFO L225 Difference]: With dead ends: 879 [2022-03-20 12:26:18,648 INFO L226 Difference]: Without dead ends: 482 [2022-03-20 12:26:18,648 INFO L912 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 [2022-03-20 12:26:18,648 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 125 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:18,649 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 360 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 455 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:26:18,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-03-20 12:26:18,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 423. [2022-03-20 12:26:18,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 418 states have (on average 1.5311004784688995) internal successors, (640), 418 states have internal predecessors, (640), 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) [2022-03-20 12:26:18,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 644 transitions. [2022-03-20 12:26:18,654 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 644 transitions. Word has length 134 [2022-03-20 12:26:18,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:18,655 INFO L478 AbstractCegarLoop]: Abstraction has 423 states and 644 transitions. [2022-03-20 12:26:18,655 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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) [2022-03-20 12:26:18,655 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 644 transitions. [2022-03-20 12:26:18,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-03-20 12:26:18,657 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:18,657 INFO L499 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] [2022-03-20 12:26:18,658 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 12:26:18,658 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:18,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:18,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1595842937, now seen corresponding path program 1 times [2022-03-20 12:26:18,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:18,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279563579] [2022-03-20 12:26:18,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:18,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:18,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:18,800 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:18,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:18,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279563579] [2022-03-20 12:26:18,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279563579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:18,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:18,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:18,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040029380] [2022-03-20 12:26:18,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:18,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:18,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:18,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:18,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:18,801 INFO L87 Difference]: Start difference. First operand 423 states and 644 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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) [2022-03-20 12:26:20,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:23,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:23,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:23,580 INFO L93 Difference]: Finished difference Result 854 states and 1304 transitions. [2022-03-20 12:26:23,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:23,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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 138 [2022-03-20 12:26:23,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:23,581 INFO L225 Difference]: With dead ends: 854 [2022-03-20 12:26:23,581 INFO L226 Difference]: Without dead ends: 457 [2022-03-20 12:26:23,582 INFO L912 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 [2022-03-20 12:26:23,582 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 70 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:23,583 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 487 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-03-20 12:26:23,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-03-20 12:26:23,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 423. [2022-03-20 12:26:23,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 418 states have (on average 1.5287081339712918) internal successors, (639), 418 states have internal predecessors, (639), 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) [2022-03-20 12:26:23,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 643 transitions. [2022-03-20 12:26:23,588 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 643 transitions. Word has length 138 [2022-03-20 12:26:23,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:23,589 INFO L478 AbstractCegarLoop]: Abstraction has 423 states and 643 transitions. [2022-03-20 12:26:23,589 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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) [2022-03-20 12:26:23,589 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 643 transitions. [2022-03-20 12:26:23,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-03-20 12:26:23,590 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:23,590 INFO L499 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] [2022-03-20 12:26:23,590 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 12:26:23,590 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:23,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:23,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1760592744, now seen corresponding path program 1 times [2022-03-20 12:26:23,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:23,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765014784] [2022-03-20 12:26:23,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:23,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:23,765 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 12:26:23,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:23,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765014784] [2022-03-20 12:26:23,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765014784] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:23,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:23,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:23,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776282722] [2022-03-20 12:26:23,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:23,766 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:23,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:23,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:23,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:23,767 INFO L87 Difference]: Start difference. First operand 423 states and 643 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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) [2022-03-20 12:26:24,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:26,905 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 [] [2022-03-20 12:26:28,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:28,516 INFO L93 Difference]: Finished difference Result 861 states and 1316 transitions. [2022-03-20 12:26:28,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:28,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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 138 [2022-03-20 12:26:28,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:28,518 INFO L225 Difference]: With dead ends: 861 [2022-03-20 12:26:28,518 INFO L226 Difference]: Without dead ends: 464 [2022-03-20 12:26:28,518 INFO L912 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 [2022-03-20 12:26:28,519 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 29 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:28,519 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 565 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 438 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 12:26:28,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-03-20 12:26:28,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 449. [2022-03-20 12:26:28,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 444 states have (on average 1.527027027027027) internal successors, (678), 444 states have internal predecessors, (678), 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) [2022-03-20 12:26:28,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 682 transitions. [2022-03-20 12:26:28,525 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 682 transitions. Word has length 138 [2022-03-20 12:26:28,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:28,526 INFO L478 AbstractCegarLoop]: Abstraction has 449 states and 682 transitions. [2022-03-20 12:26:28,526 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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) [2022-03-20 12:26:28,526 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 682 transitions. [2022-03-20 12:26:28,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-20 12:26:28,527 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:28,527 INFO L499 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, 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] [2022-03-20 12:26:28,527 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 12:26:28,527 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:28,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:28,527 INFO L85 PathProgramCache]: Analyzing trace with hash -375310702, now seen corresponding path program 1 times [2022-03-20 12:26:28,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:28,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581661804] [2022-03-20 12:26:28,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:28,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:28,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:28,625 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:28,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:28,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581661804] [2022-03-20 12:26:28,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581661804] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:28,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:28,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:28,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939628646] [2022-03-20 12:26:28,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:28,626 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:28,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:28,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:28,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:28,627 INFO L87 Difference]: Start difference. First operand 449 states and 682 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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) [2022-03-20 12:26:30,438 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 [] [2022-03-20 12:26:32,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:33,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:35,555 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 [] [2022-03-20 12:26:35,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:35,994 INFO L93 Difference]: Finished difference Result 973 states and 1483 transitions. [2022-03-20 12:26:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:35,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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 141 [2022-03-20 12:26:35,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:35,996 INFO L225 Difference]: With dead ends: 973 [2022-03-20 12:26:35,996 INFO L226 Difference]: Without dead ends: 550 [2022-03-20 12:26:35,997 INFO L912 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 [2022-03-20 12:26:35,997 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 111 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:35,997 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 360 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-03-20 12:26:35,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-03-20 12:26:36,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 477. [2022-03-20 12:26:36,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 472 states have (on average 1.5190677966101696) internal successors, (717), 472 states have internal predecessors, (717), 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) [2022-03-20 12:26:36,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 721 transitions. [2022-03-20 12:26:36,016 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 721 transitions. Word has length 141 [2022-03-20 12:26:36,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:36,016 INFO L478 AbstractCegarLoop]: Abstraction has 477 states and 721 transitions. [2022-03-20 12:26:36,016 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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) [2022-03-20 12:26:36,016 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 721 transitions. [2022-03-20 12:26:36,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-03-20 12:26:36,017 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:36,017 INFO L499 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, 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] [2022-03-20 12:26:36,017 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 12:26:36,017 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:36,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:36,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2134055557, now seen corresponding path program 1 times [2022-03-20 12:26:36,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:36,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896889617] [2022-03-20 12:26:36,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:36,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:36,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:36,141 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:36,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:36,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896889617] [2022-03-20 12:26:36,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896889617] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:36,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:36,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:36,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205455102] [2022-03-20 12:26:36,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:36,142 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:36,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:36,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:36,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:36,144 INFO L87 Difference]: Start difference. First operand 477 states and 721 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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) [2022-03-20 12:26:39,150 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 [] [2022-03-20 12:26:40,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:42,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:43,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:43,167 INFO L93 Difference]: Finished difference Result 954 states and 1445 transitions. [2022-03-20 12:26:43,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:43,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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 142 [2022-03-20 12:26:43,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:43,169 INFO L225 Difference]: With dead ends: 954 [2022-03-20 12:26:43,169 INFO L226 Difference]: Without dead ends: 503 [2022-03-20 12:26:43,169 INFO L912 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 [2022-03-20 12:26:43,169 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 54 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:43,170 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 505 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 462 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-20 12:26:43,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-03-20 12:26:43,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 477. [2022-03-20 12:26:43,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 472 states have (on average 1.5169491525423728) internal successors, (716), 472 states have internal predecessors, (716), 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) [2022-03-20 12:26:43,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 720 transitions. [2022-03-20 12:26:43,176 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 720 transitions. Word has length 142 [2022-03-20 12:26:43,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:43,176 INFO L478 AbstractCegarLoop]: Abstraction has 477 states and 720 transitions. [2022-03-20 12:26:43,176 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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) [2022-03-20 12:26:43,176 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 720 transitions. [2022-03-20 12:26:43,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-20 12:26:43,177 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:43,177 INFO L499 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, 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] [2022-03-20 12:26:43,177 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 12:26:43,177 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:43,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:43,177 INFO L85 PathProgramCache]: Analyzing trace with hash 556207741, now seen corresponding path program 1 times [2022-03-20 12:26:43,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:43,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40085075] [2022-03-20 12:26:43,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:43,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:43,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:43,309 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:43,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:43,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40085075] [2022-03-20 12:26:43,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40085075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:43,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:43,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:43,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000682508] [2022-03-20 12:26:43,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:43,310 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:43,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:43,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:43,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:43,311 INFO L87 Difference]: Start difference. First operand 477 states and 720 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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) [2022-03-20 12:26:44,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:47,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:47,380 INFO L93 Difference]: Finished difference Result 954 states and 1443 transitions. [2022-03-20 12:26:47,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:47,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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 143 [2022-03-20 12:26:47,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:47,382 INFO L225 Difference]: With dead ends: 954 [2022-03-20 12:26:47,382 INFO L226 Difference]: Without dead ends: 503 [2022-03-20 12:26:47,382 INFO L912 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 [2022-03-20 12:26:47,383 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 52 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:47,383 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 505 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 12:26:47,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-03-20 12:26:47,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 477. [2022-03-20 12:26:47,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 472 states have (on average 1.5148305084745763) internal successors, (715), 472 states have internal predecessors, (715), 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) [2022-03-20 12:26:47,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 719 transitions. [2022-03-20 12:26:47,388 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 719 transitions. Word has length 143 [2022-03-20 12:26:47,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:47,389 INFO L478 AbstractCegarLoop]: Abstraction has 477 states and 719 transitions. [2022-03-20 12:26:47,389 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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) [2022-03-20 12:26:47,389 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 719 transitions. [2022-03-20 12:26:47,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-20 12:26:47,390 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:47,390 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:47,390 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 12:26:47,390 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:47,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:47,390 INFO L85 PathProgramCache]: Analyzing trace with hash -513562993, now seen corresponding path program 1 times [2022-03-20 12:26:47,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:47,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700553945] [2022-03-20 12:26:47,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:47,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:47,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:47,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:47,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700553945] [2022-03-20 12:26:47,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700553945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:47,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:47,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:47,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308931661] [2022-03-20 12:26:47,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:47,483 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:47,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:47,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:47,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:47,483 INFO L87 Difference]: Start difference. First operand 477 states and 719 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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) [2022-03-20 12:26:48,571 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 [] [2022-03-20 12:26:50,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:52,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:54,636 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 [] [2022-03-20 12:26:55,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:55,057 INFO L93 Difference]: Finished difference Result 987 states and 1489 transitions. [2022-03-20 12:26:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:55,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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 144 [2022-03-20 12:26:55,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:55,058 INFO L225 Difference]: With dead ends: 987 [2022-03-20 12:26:55,058 INFO L226 Difference]: Without dead ends: 536 [2022-03-20 12:26:55,059 INFO L912 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 [2022-03-20 12:26:55,059 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 113 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 50 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:55,059 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 366 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 460 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-03-20 12:26:55,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-03-20 12:26:55,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 477. [2022-03-20 12:26:55,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 472 states have (on average 1.5021186440677967) internal successors, (709), 472 states have internal predecessors, (709), 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) [2022-03-20 12:26:55,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 713 transitions. [2022-03-20 12:26:55,065 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 713 transitions. Word has length 144 [2022-03-20 12:26:55,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:55,065 INFO L478 AbstractCegarLoop]: Abstraction has 477 states and 713 transitions. [2022-03-20 12:26:55,065 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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) [2022-03-20 12:26:55,065 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 713 transitions. [2022-03-20 12:26:55,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-20 12:26:55,066 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:55,066 INFO L499 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, 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] [2022-03-20 12:26:55,066 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 12:26:55,066 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:55,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:55,067 INFO L85 PathProgramCache]: Analyzing trace with hash 2040430962, now seen corresponding path program 1 times [2022-03-20 12:26:55,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:55,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336332049] [2022-03-20 12:26:55,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:55,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:55,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:55,172 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:55,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:55,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336332049] [2022-03-20 12:26:55,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336332049] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:55,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:55,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:55,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847877490] [2022-03-20 12:26:55,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:55,173 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:55,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:55,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:55,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:55,173 INFO L87 Difference]: Start difference. First operand 477 states and 713 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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) [2022-03-20 12:26:58,183 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 [] [2022-03-20 12:27:00,209 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 [] [2022-03-20 12:27:00,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:00,566 INFO L93 Difference]: Finished difference Result 952 states and 1427 transitions. [2022-03-20 12:27:00,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:00,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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 144 [2022-03-20 12:27:00,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:00,567 INFO L225 Difference]: With dead ends: 952 [2022-03-20 12:27:00,567 INFO L226 Difference]: Without dead ends: 501 [2022-03-20 12:27:00,568 INFO L912 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 [2022-03-20 12:27:00,568 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 48 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:00,568 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 507 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 12:27:00,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-03-20 12:27:00,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 477. [2022-03-20 12:27:00,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 472 states have (on average 1.5) internal successors, (708), 472 states have internal predecessors, (708), 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) [2022-03-20 12:27:00,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 712 transitions. [2022-03-20 12:27:00,574 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 712 transitions. Word has length 144 [2022-03-20 12:27:00,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:00,574 INFO L478 AbstractCegarLoop]: Abstraction has 477 states and 712 transitions. [2022-03-20 12:27:00,574 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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) [2022-03-20 12:27:00,574 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 712 transitions. [2022-03-20 12:27:00,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 12:27:00,575 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:00,575 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2022-03-20 12:27:00,575 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 12:27:00,575 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:00,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:00,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1484188220, now seen corresponding path program 1 times [2022-03-20 12:27:00,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:00,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367823635] [2022-03-20 12:27:00,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:00,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:00,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:00,681 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:27:00,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:00,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367823635] [2022-03-20 12:27:00,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367823635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:00,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:00,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:00,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438464092] [2022-03-20 12:27:00,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:00,681 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:00,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:00,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:00,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:00,682 INFO L87 Difference]: Start difference. First operand 477 states and 712 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) [2022-03-20 12:27:03,682 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 [] [2022-03-20 12:27:05,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:05,149 INFO L93 Difference]: Finished difference Result 950 states and 1422 transitions. [2022-03-20 12:27:05,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:05,149 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 145 [2022-03-20 12:27:05,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:05,150 INFO L225 Difference]: With dead ends: 950 [2022-03-20 12:27:05,150 INFO L226 Difference]: Without dead ends: 499 [2022-03-20 12:27:05,151 INFO L912 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 [2022-03-20 12:27:05,151 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 50 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:05,151 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 513 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 455 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 12:27:05,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2022-03-20 12:27:05,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 477. [2022-03-20 12:27:05,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 472 states have (on average 1.4978813559322033) internal successors, (707), 472 states have internal predecessors, (707), 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) [2022-03-20 12:27:05,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 711 transitions. [2022-03-20 12:27:05,157 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 711 transitions. Word has length 145 [2022-03-20 12:27:05,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:05,157 INFO L478 AbstractCegarLoop]: Abstraction has 477 states and 711 transitions. [2022-03-20 12:27:05,157 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) [2022-03-20 12:27:05,157 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 711 transitions. [2022-03-20 12:27:05,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 12:27:05,158 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:05,158 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:05,158 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 12:27:05,158 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:05,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:05,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1464878387, now seen corresponding path program 1 times [2022-03-20 12:27:05,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:05,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013149333] [2022-03-20 12:27:05,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:05,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:05,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:27:05,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:05,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013149333] [2022-03-20 12:27:05,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013149333] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:05,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:05,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:05,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963560844] [2022-03-20 12:27:05,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:05,247 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:05,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:05,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:05,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:05,247 INFO L87 Difference]: Start difference. First operand 477 states and 711 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) [2022-03-20 12:27:06,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:08,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:09,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:09,761 INFO L93 Difference]: Finished difference Result 1029 states and 1539 transitions. [2022-03-20 12:27:09,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:09,762 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 147 [2022-03-20 12:27:09,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:09,763 INFO L225 Difference]: With dead ends: 1029 [2022-03-20 12:27:09,763 INFO L226 Difference]: Without dead ends: 578 [2022-03-20 12:27:09,764 INFO L912 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 [2022-03-20 12:27:09,764 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 106 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:09,764 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 360 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 12:27:09,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-03-20 12:27:09,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 510. [2022-03-20 12:27:09,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 505 states have (on average 1.493069306930693) internal successors, (754), 505 states have internal predecessors, (754), 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) [2022-03-20 12:27:09,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 758 transitions. [2022-03-20 12:27:09,773 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 758 transitions. Word has length 147 [2022-03-20 12:27:09,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:09,773 INFO L478 AbstractCegarLoop]: Abstraction has 510 states and 758 transitions. [2022-03-20 12:27:09,773 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) [2022-03-20 12:27:09,773 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 758 transitions. [2022-03-20 12:27:09,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-20 12:27:09,774 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:09,774 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:09,774 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 12:27:09,774 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:09,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:09,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1224598773, now seen corresponding path program 1 times [2022-03-20 12:27:09,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:09,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882202968] [2022-03-20 12:27:09,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:09,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:09,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:09,866 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:27:09,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:09,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882202968] [2022-03-20 12:27:09,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882202968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:09,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:09,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:09,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570508115] [2022-03-20 12:27:09,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:09,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:09,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:09,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:09,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:09,867 INFO L87 Difference]: Start difference. First operand 510 states and 758 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) [2022-03-20 12:27:11,878 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 [] [2022-03-20 12:27:12,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:12,228 INFO L93 Difference]: Finished difference Result 1012 states and 1509 transitions. [2022-03-20 12:27:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:12,228 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 148 [2022-03-20 12:27:12,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:12,230 INFO L225 Difference]: With dead ends: 1012 [2022-03-20 12:27:12,230 INFO L226 Difference]: Without dead ends: 528 [2022-03-20 12:27:12,230 INFO L912 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 [2022-03-20 12:27:12,230 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 38 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:12,231 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 517 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 448 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:27:12,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-03-20 12:27:12,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 510. [2022-03-20 12:27:12,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 505 states have (on average 1.491089108910891) internal successors, (753), 505 states have internal predecessors, (753), 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) [2022-03-20 12:27:12,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 757 transitions. [2022-03-20 12:27:12,237 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 757 transitions. Word has length 148 [2022-03-20 12:27:12,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:12,237 INFO L478 AbstractCegarLoop]: Abstraction has 510 states and 757 transitions. [2022-03-20 12:27:12,237 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) [2022-03-20 12:27:12,237 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 757 transitions. [2022-03-20 12:27:12,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-20 12:27:12,238 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:12,238 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:12,238 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 12:27:12,238 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:12,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:12,238 INFO L85 PathProgramCache]: Analyzing trace with hash 583669182, now seen corresponding path program 1 times [2022-03-20 12:27:12,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:12,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025020298] [2022-03-20 12:27:12,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:12,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:12,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:12,367 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:27:12,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:12,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025020298] [2022-03-20 12:27:12,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025020298] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:12,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:12,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:12,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048000158] [2022-03-20 12:27:12,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:12,367 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:12,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:12,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:12,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:12,368 INFO L87 Difference]: Start difference. First operand 510 states and 757 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) [2022-03-20 12:27:14,375 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 [] [2022-03-20 12:27:14,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:14,792 INFO L93 Difference]: Finished difference Result 1095 states and 1630 transitions. [2022-03-20 12:27:14,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:14,792 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 148 [2022-03-20 12:27:14,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:14,794 INFO L225 Difference]: With dead ends: 1095 [2022-03-20 12:27:14,794 INFO L226 Difference]: Without dead ends: 611 [2022-03-20 12:27:14,795 INFO L912 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 [2022-03-20 12:27:14,795 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 104 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:14,795 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 362 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:27:14,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-03-20 12:27:14,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 545. [2022-03-20 12:27:14,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.487037037037037) internal successors, (803), 540 states have internal predecessors, (803), 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) [2022-03-20 12:27:14,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 807 transitions. [2022-03-20 12:27:14,802 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 807 transitions. Word has length 148 [2022-03-20 12:27:14,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:14,802 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 807 transitions. [2022-03-20 12:27:14,802 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) [2022-03-20 12:27:14,802 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 807 transitions. [2022-03-20 12:27:14,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-20 12:27:14,803 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:14,804 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:14,804 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 12:27:14,804 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:14,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:14,804 INFO L85 PathProgramCache]: Analyzing trace with hash -327212523, now seen corresponding path program 1 times [2022-03-20 12:27:14,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:14,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884030467] [2022-03-20 12:27:14,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:14,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:14,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:27:14,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:14,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884030467] [2022-03-20 12:27:14,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884030467] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:14,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:14,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:14,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057997066] [2022-03-20 12:27:14,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:14,891 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:14,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:14,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:14,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:14,892 INFO L87 Difference]: Start difference. First operand 545 states and 807 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 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) [2022-03-20 12:27:16,898 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 [] [2022-03-20 12:27:17,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:17,328 INFO L93 Difference]: Finished difference Result 1123 states and 1665 transitions. [2022-03-20 12:27:17,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:17,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 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 149 [2022-03-20 12:27:17,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:17,330 INFO L225 Difference]: With dead ends: 1123 [2022-03-20 12:27:17,330 INFO L226 Difference]: Without dead ends: 604 [2022-03-20 12:27:17,331 INFO L912 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 [2022-03-20 12:27:17,331 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 103 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:17,331 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 370 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:27:17,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2022-03-20 12:27:17,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 545. [2022-03-20 12:27:17,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.4777777777777779) internal successors, (798), 540 states have internal predecessors, (798), 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) [2022-03-20 12:27:17,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 802 transitions. [2022-03-20 12:27:17,338 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 802 transitions. Word has length 149 [2022-03-20 12:27:17,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:17,338 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 802 transitions. [2022-03-20 12:27:17,338 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 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) [2022-03-20 12:27:17,338 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 802 transitions. [2022-03-20 12:27:17,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-03-20 12:27:17,339 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:17,339 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 1] [2022-03-20 12:27:17,339 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 12:27:17,339 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:17,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:17,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2051004754, now seen corresponding path program 1 times [2022-03-20 12:27:17,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:17,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664626952] [2022-03-20 12:27:17,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:17,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:17,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:17,439 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 12:27:17,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:17,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664626952] [2022-03-20 12:27:17,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664626952] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:17,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:17,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:17,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166521333] [2022-03-20 12:27:17,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:17,440 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:17,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:17,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:17,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:17,441 INFO L87 Difference]: Start difference. First operand 545 states and 802 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) [2022-03-20 12:27:19,841 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 [] [2022-03-20 12:27:22,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:22,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:22,339 INFO L93 Difference]: Finished difference Result 1077 states and 1592 transitions. [2022-03-20 12:27:22,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:22,339 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 151 [2022-03-20 12:27:22,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:22,340 INFO L225 Difference]: With dead ends: 1077 [2022-03-20 12:27:22,340 INFO L226 Difference]: Without dead ends: 558 [2022-03-20 12:27:22,341 INFO L912 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 [2022-03-20 12:27:22,341 INFO L913 BasicCegarLoop]: 228 mSDtfsCounter, 38 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:22,341 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 563 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 426 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 12:27:22,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-03-20 12:27:22,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 545. [2022-03-20 12:27:22,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.4759259259259259) internal successors, (797), 540 states have internal predecessors, (797), 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) [2022-03-20 12:27:22,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 801 transitions. [2022-03-20 12:27:22,348 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 801 transitions. Word has length 151 [2022-03-20 12:27:22,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:22,351 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 801 transitions. [2022-03-20 12:27:22,351 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) [2022-03-20 12:27:22,352 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 801 transitions. [2022-03-20 12:27:22,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-20 12:27:22,352 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:22,352 INFO L499 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] [2022-03-20 12:27:22,352 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 12:27:22,353 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:22,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:22,353 INFO L85 PathProgramCache]: Analyzing trace with hash 142430824, now seen corresponding path program 1 times [2022-03-20 12:27:22,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:22,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550947134] [2022-03-20 12:27:22,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:22,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:22,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:27:22,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:22,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550947134] [2022-03-20 12:27:22,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550947134] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:22,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:22,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:22,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800121603] [2022-03-20 12:27:22,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:22,487 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:22,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:22,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:22,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:22,487 INFO L87 Difference]: Start difference. First operand 545 states and 801 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) [2022-03-20 12:27:25,355 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 [] [2022-03-20 12:27:27,732 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 [] [2022-03-20 12:27:28,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:28,141 INFO L93 Difference]: Finished difference Result 1100 states and 1621 transitions. [2022-03-20 12:27:28,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:28,142 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 [2022-03-20 12:27:28,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:28,143 INFO L225 Difference]: With dead ends: 1100 [2022-03-20 12:27:28,143 INFO L226 Difference]: Without dead ends: 581 [2022-03-20 12:27:28,144 INFO L912 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 [2022-03-20 12:27:28,144 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 67 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:28,144 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 538 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 519 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 12:27:28,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-03-20 12:27:28,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 545. [2022-03-20 12:27:28,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.474074074074074) internal successors, (796), 540 states have internal predecessors, (796), 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) [2022-03-20 12:27:28,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 800 transitions. [2022-03-20 12:27:28,173 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 800 transitions. Word has length 157 [2022-03-20 12:27:28,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:28,173 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 800 transitions. [2022-03-20 12:27:28,173 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) [2022-03-20 12:27:28,174 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 800 transitions. [2022-03-20 12:27:28,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-20 12:27:28,174 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:28,174 INFO L499 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, 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] [2022-03-20 12:27:28,175 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 12:27:28,175 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:28,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:28,175 INFO L85 PathProgramCache]: Analyzing trace with hash -2062051175, now seen corresponding path program 1 times [2022-03-20 12:27:28,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:28,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699560760] [2022-03-20 12:27:28,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:28,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:28,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:28,350 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:27:28,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:28,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699560760] [2022-03-20 12:27:28,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699560760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:28,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:28,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:28,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573389426] [2022-03-20 12:27:28,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:28,352 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:28,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:28,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:28,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:28,352 INFO L87 Difference]: Start difference. First operand 545 states and 800 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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) [2022-03-20 12:27:30,492 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 [] [2022-03-20 12:27:31,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:31,790 INFO L93 Difference]: Finished difference Result 1098 states and 1617 transitions. [2022-03-20 12:27:31,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:31,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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 163 [2022-03-20 12:27:31,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:31,792 INFO L225 Difference]: With dead ends: 1098 [2022-03-20 12:27:31,792 INFO L226 Difference]: Without dead ends: 579 [2022-03-20 12:27:31,793 INFO L912 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 [2022-03-20 12:27:31,793 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 59 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:31,793 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 540 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 12:27:31,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-03-20 12:27:31,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 545. [2022-03-20 12:27:31,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.4722222222222223) internal successors, (795), 540 states have internal predecessors, (795), 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) [2022-03-20 12:27:31,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 799 transitions. [2022-03-20 12:27:31,802 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 799 transitions. Word has length 163 [2022-03-20 12:27:31,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:31,802 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 799 transitions. [2022-03-20 12:27:31,802 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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) [2022-03-20 12:27:31,802 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 799 transitions. [2022-03-20 12:27:31,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-20 12:27:31,803 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:31,803 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:31,803 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 12:27:31,803 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:31,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:31,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1724438484, now seen corresponding path program 1 times [2022-03-20 12:27:31,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:31,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303848699] [2022-03-20 12:27:31,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:31,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:31,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:31,905 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-03-20 12:27:31,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:31,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303848699] [2022-03-20 12:27:31,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303848699] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:31,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:31,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:31,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468241695] [2022-03-20 12:27:31,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:31,906 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:31,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:31,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:31,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:31,906 INFO L87 Difference]: Start difference. First operand 545 states and 799 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 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) [2022-03-20 12:27:34,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:36,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:37,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:37,381 INFO L93 Difference]: Finished difference Result 1087 states and 1601 transitions. [2022-03-20 12:27:37,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:37,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 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 166 [2022-03-20 12:27:37,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:37,383 INFO L225 Difference]: With dead ends: 1087 [2022-03-20 12:27:37,383 INFO L226 Difference]: Without dead ends: 568 [2022-03-20 12:27:37,384 INFO L912 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 [2022-03-20 12:27:37,384 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 39 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:37,385 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 580 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 12:27:37,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-03-20 12:27:37,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 545. [2022-03-20 12:27:37,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.4703703703703703) internal successors, (794), 540 states have internal predecessors, (794), 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) [2022-03-20 12:27:37,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 798 transitions. [2022-03-20 12:27:37,399 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 798 transitions. Word has length 166 [2022-03-20 12:27:37,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:37,400 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 798 transitions. [2022-03-20 12:27:37,400 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 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) [2022-03-20 12:27:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 798 transitions. [2022-03-20 12:27:37,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-03-20 12:27:37,401 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:37,401 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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] [2022-03-20 12:27:37,401 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 12:27:37,401 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:37,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:37,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1897400958, now seen corresponding path program 1 times [2022-03-20 12:27:37,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:37,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196194742] [2022-03-20 12:27:37,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:37,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:37,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:37,495 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 12:27:37,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:37,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196194742] [2022-03-20 12:27:37,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196194742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:37,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:37,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:37,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566615599] [2022-03-20 12:27:37,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:37,495 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:37,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:37,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:37,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:37,496 INFO L87 Difference]: Start difference. First operand 545 states and 798 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 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) [2022-03-20 12:27:38,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:40,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:42,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:44,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:45,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:45,364 INFO L93 Difference]: Finished difference Result 1121 states and 1645 transitions. [2022-03-20 12:27:45,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:45,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 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 170 [2022-03-20 12:27:45,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:45,367 INFO L225 Difference]: With dead ends: 1121 [2022-03-20 12:27:45,367 INFO L226 Difference]: Without dead ends: 602 [2022-03-20 12:27:45,367 INFO L912 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 [2022-03-20 12:27:45,368 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 121 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:45,368 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 350 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 446 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-03-20 12:27:45,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-03-20 12:27:45,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 545. [2022-03-20 12:27:45,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.4574074074074075) internal successors, (787), 540 states have internal predecessors, (787), 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) [2022-03-20 12:27:45,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 791 transitions. [2022-03-20 12:27:45,377 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 791 transitions. Word has length 170 [2022-03-20 12:27:45,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:45,378 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 791 transitions. [2022-03-20 12:27:45,378 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 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) [2022-03-20 12:27:45,378 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 791 transitions. [2022-03-20 12:27:45,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 12:27:45,379 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:45,379 INFO L499 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] [2022-03-20 12:27:45,379 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 12:27:45,379 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:45,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:45,380 INFO L85 PathProgramCache]: Analyzing trace with hash -577869470, now seen corresponding path program 1 times [2022-03-20 12:27:45,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:45,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254895703] [2022-03-20 12:27:45,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:45,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:45,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-20 12:27:45,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:45,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254895703] [2022-03-20 12:27:45,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254895703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:45,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:45,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:27:45,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200296256] [2022-03-20 12:27:45,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:45,527 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:27:45,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:45,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:27:45,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:27:45,528 INFO L87 Difference]: Start difference. First operand 545 states and 791 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 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) [2022-03-20 12:27:48,337 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 [] [2022-03-20 12:27:48,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:48,743 INFO L93 Difference]: Finished difference Result 1577 states and 2307 transitions. [2022-03-20 12:27:48,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:27:48,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 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 171 [2022-03-20 12:27:48,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:48,746 INFO L225 Difference]: With dead ends: 1577 [2022-03-20 12:27:48,746 INFO L226 Difference]: Without dead ends: 1058 [2022-03-20 12:27:48,746 INFO L912 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 [2022-03-20 12:27:48,747 INFO L913 BasicCegarLoop]: 370 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:48,747 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 564 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 400 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 12:27:48,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-03-20 12:27:48,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1058. [2022-03-20 12:27:48,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4577397910731245) internal successors, (1535), 1053 states have internal predecessors, (1535), 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) [2022-03-20 12:27:48,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1539 transitions. [2022-03-20 12:27:48,759 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1539 transitions. Word has length 171 [2022-03-20 12:27:48,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:48,760 INFO L478 AbstractCegarLoop]: Abstraction has 1058 states and 1539 transitions. [2022-03-20 12:27:48,760 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 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) [2022-03-20 12:27:48,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1539 transitions. [2022-03-20 12:27:48,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-20 12:27:48,761 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:48,761 INFO L499 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, 1] [2022-03-20 12:27:48,761 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 12:27:48,761 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:48,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:48,762 INFO L85 PathProgramCache]: Analyzing trace with hash 256687454, now seen corresponding path program 1 times [2022-03-20 12:27:48,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:48,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318675262] [2022-03-20 12:27:48,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:48,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:48,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:48,875 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:27:48,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:48,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318675262] [2022-03-20 12:27:48,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318675262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:48,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:48,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:27:48,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932270789] [2022-03-20 12:27:48,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:48,876 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:27:48,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:48,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:27:48,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:27:48,876 INFO L87 Difference]: Start difference. First operand 1058 states and 1539 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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) [2022-03-20 12:27:50,883 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 [] [2022-03-20 12:27:51,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:51,209 INFO L93 Difference]: Finished difference Result 2600 states and 3797 transitions. [2022-03-20 12:27:51,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:27:51,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 172 [2022-03-20 12:27:51,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:51,213 INFO L225 Difference]: With dead ends: 2600 [2022-03-20 12:27:51,213 INFO L226 Difference]: Without dead ends: 1568 [2022-03-20 12:27:51,214 INFO L912 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 [2022-03-20 12:27:51,214 INFO L913 BasicCegarLoop]: 300 mSDtfsCounter, 132 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:51,215 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 494 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 326 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:27:51,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2022-03-20 12:27:51,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1566. [2022-03-20 12:27:51,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1561 states have (on average 1.458680333119795) internal successors, (2277), 1561 states have internal predecessors, (2277), 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) [2022-03-20 12:27:51,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 2281 transitions. [2022-03-20 12:27:51,233 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 2281 transitions. Word has length 172 [2022-03-20 12:27:51,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:51,233 INFO L478 AbstractCegarLoop]: Abstraction has 1566 states and 2281 transitions. [2022-03-20 12:27:51,233 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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) [2022-03-20 12:27:51,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 2281 transitions. [2022-03-20 12:27:51,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-20 12:27:51,234 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:51,235 INFO L499 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, 1, 1] [2022-03-20 12:27:51,235 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 12:27:51,235 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:51,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:51,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1374067372, now seen corresponding path program 1 times [2022-03-20 12:27:51,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:51,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574163259] [2022-03-20 12:27:51,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:51,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 12:27:51,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:51,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574163259] [2022-03-20 12:27:51,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574163259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:51,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:51,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:27:51,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152717301] [2022-03-20 12:27:51,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:51,332 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:27:51,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:51,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:27:51,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:27:51,333 INFO L87 Difference]: Start difference. First operand 1566 states and 2281 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 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) [2022-03-20 12:27:52,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:54,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:55,824 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 [] [2022-03-20 12:27:56,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:56,182 INFO L93 Difference]: Finished difference Result 3575 states and 5222 transitions. [2022-03-20 12:27:56,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:27:56,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 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 173 [2022-03-20 12:27:56,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:56,187 INFO L225 Difference]: With dead ends: 3575 [2022-03-20 12:27:56,187 INFO L226 Difference]: Without dead ends: 2035 [2022-03-20 12:27:56,189 INFO L912 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 [2022-03-20 12:27:56,189 INFO L913 BasicCegarLoop]: 316 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:56,189 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 510 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 344 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-20 12:27:56,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2022-03-20 12:27:56,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 2031. [2022-03-20 12:27:56,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.460019743336624) internal successors, (2958), 2026 states have internal predecessors, (2958), 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) [2022-03-20 12:27:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2962 transitions. [2022-03-20 12:27:56,213 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2962 transitions. Word has length 173 [2022-03-20 12:27:56,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:56,213 INFO L478 AbstractCegarLoop]: Abstraction has 2031 states and 2962 transitions. [2022-03-20 12:27:56,213 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 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) [2022-03-20 12:27:56,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2962 transitions. [2022-03-20 12:27:56,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-20 12:27:56,215 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:56,215 INFO L499 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, 1, 1] [2022-03-20 12:27:56,215 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 12:27:56,216 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:56,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:56,216 INFO L85 PathProgramCache]: Analyzing trace with hash -990669075, now seen corresponding path program 1 times [2022-03-20 12:27:56,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:56,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545042143] [2022-03-20 12:27:56,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:56,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:56,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:56,290 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-03-20 12:27:56,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:56,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545042143] [2022-03-20 12:27:56,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545042143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:56,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:56,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:27:56,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549058500] [2022-03-20 12:27:56,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:56,291 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:27:56,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:56,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:27:56,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:27:56,292 INFO L87 Difference]: Start difference. First operand 2031 states and 2962 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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) [2022-03-20 12:27:58,307 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 [] [2022-03-20 12:27:58,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:58,601 INFO L93 Difference]: Finished difference Result 4063 states and 5931 transitions. [2022-03-20 12:27:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:27:58,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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 173 [2022-03-20 12:27:58,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:58,604 INFO L225 Difference]: With dead ends: 4063 [2022-03-20 12:27:58,605 INFO L226 Difference]: Without dead ends: 2058 [2022-03-20 12:27:58,606 INFO L912 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 [2022-03-20 12:27:58,607 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:58,607 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:27:58,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2022-03-20 12:27:58,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2058. [2022-03-20 12:27:58,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2058 states, 2053 states have (on average 1.4578665367754506) internal successors, (2993), 2053 states have internal predecessors, (2993), 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) [2022-03-20 12:27:58,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2058 states to 2058 states and 2997 transitions. [2022-03-20 12:27:58,632 INFO L78 Accepts]: Start accepts. Automaton has 2058 states and 2997 transitions. Word has length 173 [2022-03-20 12:27:58,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:58,632 INFO L478 AbstractCegarLoop]: Abstraction has 2058 states and 2997 transitions. [2022-03-20 12:27:58,632 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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) [2022-03-20 12:27:58,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2058 states and 2997 transitions. [2022-03-20 12:27:58,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-20 12:27:58,634 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:58,634 INFO L499 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, 1, 1] [2022-03-20 12:27:58,634 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 12:27:58,635 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:58,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:58,635 INFO L85 PathProgramCache]: Analyzing trace with hash -25106258, now seen corresponding path program 1 times [2022-03-20 12:27:58,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:58,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137459808] [2022-03-20 12:27:58,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:58,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:58,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:58,712 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-20 12:27:58,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:58,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137459808] [2022-03-20 12:27:58,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137459808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:58,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:58,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:27:58,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752493278] [2022-03-20 12:27:58,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:58,713 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:27:58,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:58,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:27:58,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:27:58,714 INFO L87 Difference]: Start difference. First operand 2058 states and 2997 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 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) [2022-03-20 12:28:00,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:02,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:04,211 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 [] [2022-03-20 12:28:04,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:04,441 INFO L93 Difference]: Finished difference Result 4092 states and 5967 transitions. [2022-03-20 12:28:04,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:28:04,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 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 173 [2022-03-20 12:28:04,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:04,444 INFO L225 Difference]: With dead ends: 4092 [2022-03-20 12:28:04,444 INFO L226 Difference]: Without dead ends: 2060 [2022-03-20 12:28:04,446 INFO L912 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 [2022-03-20 12:28:04,446 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:04,446 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 390 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 222 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 12:28:04,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2022-03-20 12:28:04,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 2060. [2022-03-20 12:28:04,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2060 states, 2055 states have (on average 1.4574209245742094) internal successors, (2995), 2055 states have internal predecessors, (2995), 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) [2022-03-20 12:28:04,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2999 transitions. [2022-03-20 12:28:04,481 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2999 transitions. Word has length 173 [2022-03-20 12:28:04,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:04,481 INFO L478 AbstractCegarLoop]: Abstraction has 2060 states and 2999 transitions. [2022-03-20 12:28:04,481 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 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) [2022-03-20 12:28:04,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2999 transitions. [2022-03-20 12:28:04,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-03-20 12:28:04,483 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:04,483 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:28:04,483 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-20 12:28:04,483 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:04,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:04,484 INFO L85 PathProgramCache]: Analyzing trace with hash 239046962, now seen corresponding path program 1 times [2022-03-20 12:28:04,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:04,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544895322] [2022-03-20 12:28:04,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:04,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:04,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:04,578 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 12:28:04,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:04,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544895322] [2022-03-20 12:28:04,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544895322] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:04,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:04,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:04,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865325464] [2022-03-20 12:28:04,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:04,579 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:04,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:04,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:04,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:04,580 INFO L87 Difference]: Start difference. First operand 2060 states and 2999 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) [2022-03-20 12:28:05,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:07,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:09,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:10,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:10,554 INFO L93 Difference]: Finished difference Result 4309 states and 6256 transitions. [2022-03-20 12:28:10,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:10,555 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 183 [2022-03-20 12:28:10,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:10,558 INFO L225 Difference]: With dead ends: 4309 [2022-03-20 12:28:10,558 INFO L226 Difference]: Without dead ends: 2277 [2022-03-20 12:28:10,560 INFO L912 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 [2022-03-20 12:28:10,560 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 108 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:10,560 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 362 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-20 12:28:10,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2277 states. [2022-03-20 12:28:10,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2277 to 2060. [2022-03-20 12:28:10,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2060 states, 2055 states have (on average 1.446228710462287) internal successors, (2972), 2055 states have internal predecessors, (2972), 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) [2022-03-20 12:28:10,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2976 transitions. [2022-03-20 12:28:10,614 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2976 transitions. Word has length 183 [2022-03-20 12:28:10,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:10,614 INFO L478 AbstractCegarLoop]: Abstraction has 2060 states and 2976 transitions. [2022-03-20 12:28:10,614 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) [2022-03-20 12:28:10,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2976 transitions. [2022-03-20 12:28:10,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-03-20 12:28:10,616 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:10,616 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:10,616 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 12:28:10,616 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:10,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:10,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1940483440, now seen corresponding path program 1 times [2022-03-20 12:28:10,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:10,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345793411] [2022-03-20 12:28:10,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:10,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:10,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 12:28:10,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:10,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345793411] [2022-03-20 12:28:10,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345793411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:10,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:10,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:10,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414359268] [2022-03-20 12:28:10,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:10,725 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:10,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:10,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:10,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:10,725 INFO L87 Difference]: Start difference. First operand 2060 states and 2976 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 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) [2022-03-20 12:28:12,732 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 [] [2022-03-20 12:28:13,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:13,167 INFO L93 Difference]: Finished difference Result 4477 states and 6454 transitions. [2022-03-20 12:28:13,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:13,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 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 184 [2022-03-20 12:28:13,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:13,170 INFO L225 Difference]: With dead ends: 4477 [2022-03-20 12:28:13,170 INFO L226 Difference]: Without dead ends: 2445 [2022-03-20 12:28:13,171 INFO L912 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 [2022-03-20 12:28:13,171 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 106 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:13,172 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 362 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:28:13,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2022-03-20 12:28:13,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 2180. [2022-03-20 12:28:13,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2175 states have (on average 1.4367816091954022) internal successors, (3125), 2175 states have internal predecessors, (3125), 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) [2022-03-20 12:28:13,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3129 transitions. [2022-03-20 12:28:13,198 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3129 transitions. Word has length 184 [2022-03-20 12:28:13,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:13,198 INFO L478 AbstractCegarLoop]: Abstraction has 2180 states and 3129 transitions. [2022-03-20 12:28:13,198 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 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) [2022-03-20 12:28:13,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3129 transitions. [2022-03-20 12:28:13,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-03-20 12:28:13,200 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:13,200 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:28:13,200 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-20 12:28:13,200 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:13,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:13,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2003304671, now seen corresponding path program 1 times [2022-03-20 12:28:13,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:13,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339081378] [2022-03-20 12:28:13,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:13,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:13,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 12:28:13,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:13,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339081378] [2022-03-20 12:28:13,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339081378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:13,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:13,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:13,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951982443] [2022-03-20 12:28:13,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:13,294 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:13,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:13,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:13,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:13,294 INFO L87 Difference]: Start difference. First operand 2180 states and 3129 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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) [2022-03-20 12:28:14,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:16,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:18,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:19,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:19,047 INFO L93 Difference]: Finished difference Result 4399 states and 6310 transitions. [2022-03-20 12:28:19,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:19,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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 185 [2022-03-20 12:28:19,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:19,049 INFO L225 Difference]: With dead ends: 4399 [2022-03-20 12:28:19,049 INFO L226 Difference]: Without dead ends: 2247 [2022-03-20 12:28:19,051 INFO L912 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 [2022-03-20 12:28:19,051 INFO L913 BasicCegarLoop]: 232 mSDtfsCounter, 52 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:19,051 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 570 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 12:28:19,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2022-03-20 12:28:19,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 2180. [2022-03-20 12:28:19,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2175 states have (on average 1.4354022988505748) internal successors, (3122), 2175 states have internal predecessors, (3122), 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) [2022-03-20 12:28:19,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3126 transitions. [2022-03-20 12:28:19,075 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3126 transitions. Word has length 185 [2022-03-20 12:28:19,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:19,075 INFO L478 AbstractCegarLoop]: Abstraction has 2180 states and 3126 transitions. [2022-03-20 12:28:19,075 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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) [2022-03-20 12:28:19,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3126 transitions. [2022-03-20 12:28:19,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-03-20 12:28:19,077 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:19,077 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1] [2022-03-20 12:28:19,077 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-20 12:28:19,077 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:19,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:19,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1039132130, now seen corresponding path program 1 times [2022-03-20 12:28:19,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:19,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554706432] [2022-03-20 12:28:19,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:19,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:19,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 12:28:19,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:19,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554706432] [2022-03-20 12:28:19,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554706432] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:19,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:19,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:19,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386059245] [2022-03-20 12:28:19,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:19,190 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:19,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:19,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:19,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:19,191 INFO L87 Difference]: Start difference. First operand 2180 states and 3126 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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) [2022-03-20 12:28:21,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:22,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:24,415 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 [] [2022-03-20 12:28:24,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:24,817 INFO L93 Difference]: Finished difference Result 4387 states and 6289 transitions. [2022-03-20 12:28:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:24,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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 189 [2022-03-20 12:28:24,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:24,820 INFO L225 Difference]: With dead ends: 4387 [2022-03-20 12:28:24,820 INFO L226 Difference]: Without dead ends: 2235 [2022-03-20 12:28:24,822 INFO L912 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 [2022-03-20 12:28:24,822 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 45 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:24,822 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 574 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 12:28:24,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2022-03-20 12:28:24,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2180. [2022-03-20 12:28:24,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2175 states have (on average 1.4340229885057472) internal successors, (3119), 2175 states have internal predecessors, (3119), 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) [2022-03-20 12:28:24,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3123 transitions. [2022-03-20 12:28:24,846 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3123 transitions. Word has length 189 [2022-03-20 12:28:24,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:24,846 INFO L478 AbstractCegarLoop]: Abstraction has 2180 states and 3123 transitions. [2022-03-20 12:28:24,846 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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) [2022-03-20 12:28:24,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3123 transitions. [2022-03-20 12:28:24,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-03-20 12:28:24,848 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:24,848 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:24,848 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-20 12:28:24,848 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:24,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:24,849 INFO L85 PathProgramCache]: Analyzing trace with hash -990370559, now seen corresponding path program 1 times [2022-03-20 12:28:24,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:24,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123060094] [2022-03-20 12:28:24,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:24,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:24,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-03-20 12:28:24,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:24,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123060094] [2022-03-20 12:28:24,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123060094] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:24,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:24,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:24,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406359029] [2022-03-20 12:28:24,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:24,969 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:24,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:24,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:24,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:24,970 INFO L87 Difference]: Start difference. First operand 2180 states and 3123 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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) [2022-03-20 12:28:26,977 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 [] [2022-03-20 12:28:27,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:27,362 INFO L93 Difference]: Finished difference Result 4393 states and 6289 transitions. [2022-03-20 12:28:27,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:27,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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 191 [2022-03-20 12:28:27,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:27,368 INFO L225 Difference]: With dead ends: 4393 [2022-03-20 12:28:27,368 INFO L226 Difference]: Without dead ends: 2241 [2022-03-20 12:28:27,371 INFO L912 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 [2022-03-20 12:28:27,371 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 30 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:27,372 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 568 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 443 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:28:27,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2022-03-20 12:28:27,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2180. [2022-03-20 12:28:27,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2175 states have (on average 1.432183908045977) internal successors, (3115), 2175 states have internal predecessors, (3115), 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) [2022-03-20 12:28:27,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3119 transitions. [2022-03-20 12:28:27,401 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3119 transitions. Word has length 191 [2022-03-20 12:28:27,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:27,402 INFO L478 AbstractCegarLoop]: Abstraction has 2180 states and 3119 transitions. [2022-03-20 12:28:27,402 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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) [2022-03-20 12:28:27,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3119 transitions. [2022-03-20 12:28:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-20 12:28:27,404 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:27,404 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:27,404 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-20 12:28:27,404 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:27,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:27,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2123698635, now seen corresponding path program 1 times [2022-03-20 12:28:27,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:27,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328575541] [2022-03-20 12:28:27,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:27,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:27,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-20 12:28:27,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:27,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328575541] [2022-03-20 12:28:27,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328575541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:27,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:27,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 12:28:27,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114108866] [2022-03-20 12:28:27,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:27,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 12:28:27,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:27,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 12:28:27,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 12:28:27,941 INFO L87 Difference]: Start difference. First operand 2180 states and 3119 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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) [2022-03-20 12:28:30,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:32,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:34,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:36,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:36,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:36,737 INFO L93 Difference]: Finished difference Result 4353 states and 6230 transitions. [2022-03-20 12:28:36,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 12:28:36,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 196 [2022-03-20 12:28:36,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:36,756 INFO L225 Difference]: With dead ends: 4353 [2022-03-20 12:28:36,756 INFO L226 Difference]: Without dead ends: 2180 [2022-03-20 12:28:36,772 INFO L912 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 [2022-03-20 12:28:36,773 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 7 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:36,773 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 812 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 3 Unknown, 0 Unchecked, 8.7s Time] [2022-03-20 12:28:36,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2022-03-20 12:28:36,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2022-03-20 12:28:36,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 2175 states have (on average 1.4317241379310346) internal successors, (3114), 2175 states have internal predecessors, (3114), 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) [2022-03-20 12:28:36,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3118 transitions. [2022-03-20 12:28:36,803 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3118 transitions. Word has length 196 [2022-03-20 12:28:36,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:36,804 INFO L478 AbstractCegarLoop]: Abstraction has 2180 states and 3118 transitions. [2022-03-20 12:28:36,804 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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) [2022-03-20 12:28:36,804 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3118 transitions. [2022-03-20 12:28:36,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-20 12:28:36,805 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:36,806 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:36,806 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-20 12:28:36,806 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:36,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:36,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1887080810, now seen corresponding path program 1 times [2022-03-20 12:28:36,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:36,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933454300] [2022-03-20 12:28:36,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:36,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:38,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:38,225 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-03-20 12:28:38,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:38,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933454300] [2022-03-20 12:28:38,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933454300] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:28:38,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6173799] [2022-03-20 12:28:38,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:38,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:28:38,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:28:38,227 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) [2022-03-20 12:28:38,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 12:28:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:39,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 1291 conjuncts, 156 conjunts are in the unsatisfiable core [2022-03-20 12:28:39,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:28:39,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:39,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:39,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:40,247 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-03-20 12:28:40,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 46496750 treesize of output 9863287 [2022-03-20 12:28:44,579 INFO L190 IndexEqualityManager]: detected not equals via solver