/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.12.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 02:01:01,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 02:01:01,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 02:01:02,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 02:01:02,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 02:01:02,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 02:01:02,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 02:01:02,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 02:01:02,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 02:01:02,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 02:01:02,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 02:01:02,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-19 02:01:02,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-19 02:01:02,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-19 02:01:02,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-19 02:01:02,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-19 02:01:02,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-19 02:01:02,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-19 02:01:02,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-19 02:01:02,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-19 02:01:02,049 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-19 02:01:02,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-19 02:01:02,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-19 02:01:02,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-19 02:01:02,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-19 02:01:02,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-19 02:01:02,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-19 02:01:02,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-19 02:01:02,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-19 02:01:02,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-19 02:01:02,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-19 02:01:02,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 02:01:02,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 02:01:02,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 02:01:02,062 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-19 02:01:02,078 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 02:01:02,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 02:01:02,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-19 02:01:02,080 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-19 02:01:02,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-19 02:01:02,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-19 02:01:02,082 INFO L138 SettingsManager]: * Use SBE=true [2022-03-19 02:01:02,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 02:01:02,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 02:01:02,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 02:01:02,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 02:01:02,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 02:01:02,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 02:01:02,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 02:01:02,084 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 02:01:02,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 02:01:02,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 02:01:02,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 02:01:02,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 02:01:02,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 02:01:02,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 02:01:02,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-19 02:01:02,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-19 02:01:02,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-19 02:01:02,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-19 02:01:02,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 02:01:02,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-19 02:01:02,085 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-19 02:01:02,086 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-19 02:01:02,086 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 02:01:02,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 02:01:02,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 02:01:02,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 02:01:02,280 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 02:01:02,280 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 02:01:02,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c [2022-03-19 02:01:02,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ec15efd/0e0a9f60fe034653bcf9bc78c4737090/FLAG883c55251 [2022-03-19 02:01:02,747 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 02:01:02,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c [2022-03-19 02:01:02,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ec15efd/0e0a9f60fe034653bcf9bc78c4737090/FLAG883c55251 [2022-03-19 02:01:03,084 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ec15efd/0e0a9f60fe034653bcf9bc78c4737090 [2022-03-19 02:01:03,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 02:01:03,088 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-19 02:01:03,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 02:01:03,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 02:01:03,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 02:01:03,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 02:01:03" (1/1) ... [2022-03-19 02:01:03,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf9e25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:01:03, skipping insertion in model container [2022-03-19 02:01:03,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 02:01:03" (1/1) ... [2022-03-19 02:01:03,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 02:01:03,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 02:01:03,432 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.12.i.cil-2.c[75436,75449] [2022-03-19 02:01:03,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 02:01:03,447 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 02:01:03,543 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.12.i.cil-2.c[75436,75449] [2022-03-19 02:01:03,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 02:01:03,568 INFO L208 MainTranslator]: Completed translation [2022-03-19 02:01:03,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:01:03 WrapperNode [2022-03-19 02:01:03,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 02:01:03,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 02:01:03,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 02:01:03,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 02:01:03,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:01:03" (1/1) ... [2022-03-19 02:01:03,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:01:03" (1/1) ... [2022-03-19 02:01:03,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:01:03" (1/1) ... [2022-03-19 02:01:03,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:01:03" (1/1) ... [2022-03-19 02:01:03,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:01:03" (1/1) ... [2022-03-19 02:01:03,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:01:03" (1/1) ... [2022-03-19 02:01:03,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:01:03" (1/1) ... [2022-03-19 02:01:03,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 02:01:03,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 02:01:03,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 02:01:03,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 02:01:03,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:01:03" (1/1) ... [2022-03-19 02:01:03,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 02:01:03,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:01:03,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-19 02:01:03,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-19 02:01:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 02:01:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 02:01:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 02:01:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-19 02:01:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-19 02:01:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 02:01:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-19 02:01:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-19 02:01:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-19 02:01:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-19 02:01:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 02:01:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 02:01:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 02:01:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 02:01:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-19 02:01:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-19 02:01:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-19 02:01:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 02:01:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 02:01:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 02:01:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-19 02:01:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-19 02:01:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-19 02:01:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-19 02:01:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 02:01:03,926 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 02:01:03,927 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 02:01:04,848 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-19 02:01:05,252 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-19 02:01:05,252 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-19 02:01:05,264 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 02:01:05,270 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 02:01:05,270 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 02:01:05,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 02:01:05 BoogieIcfgContainer [2022-03-19 02:01:05,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 02:01:05,273 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-19 02:01:05,273 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-19 02:01:05,274 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-19 02:01:05,276 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 02:01:05" (1/1) ... [2022-03-19 02:01:05,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 19.03 02:01:05 BasicIcfg [2022-03-19 02:01:05,332 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-19 02:01:05,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 02:01:05,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 02:01:05,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 02:01:05,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 02:01:03" (1/4) ... [2022-03-19 02:01:05,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45adc85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 02:01:05, skipping insertion in model container [2022-03-19 02:01:05,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:01:03" (2/4) ... [2022-03-19 02:01:05,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45adc85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 02:01:05, skipping insertion in model container [2022-03-19 02:01:05,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 02:01:05" (3/4) ... [2022-03-19 02:01:05,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45adc85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 02:01:05, skipping insertion in model container [2022-03-19 02:01:05,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 19.03 02:01:05" (4/4) ... [2022-03-19 02:01:05,341 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.12.i.cil-2.cqvasr [2022-03-19 02:01:05,347 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-19 02:01:05,347 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 02:01:05,387 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 02:01:05,391 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-19 02:01:05,391 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 02:01:05,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-19 02:01:05,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-19 02:01:05,419 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:01:05,419 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:01:05,420 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:01:05,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:01:05,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1539324216, now seen corresponding path program 1 times [2022-03-19 02:01:05,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:01:05,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30965364] [2022-03-19 02:01:05,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:01:05,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:01:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:05,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:01:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:05,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:01:05,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:01:05,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30965364] [2022-03-19 02:01:05,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30965364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:01:05,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:01:05,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:01:05,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368773391] [2022-03-19 02:01:05,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:01:05,764 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:01:05,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:01:05,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:01:05,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:01:05,788 INFO L87 Difference]: Start difference. First operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 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 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:07,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:09,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:01:09,324 INFO L93 Difference]: Finished difference Result 340 states and 572 transitions. [2022-03-19 02:01:09,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:01:09,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-19 02:01:09,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:01:09,332 INFO L225 Difference]: With dead ends: 340 [2022-03-19 02:01:09,333 INFO L226 Difference]: Without dead ends: 173 [2022-03-19 02:01:09,335 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:01:09,351 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 34 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:01:09,352 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 625 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-19 02:01:09,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-03-19 02:01:09,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 156. [2022-03-19 02:01:09,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 151 states have (on average 1.5629139072847682) internal successors, (236), 151 states have internal predecessors, (236), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:09,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 240 transitions. [2022-03-19 02:01:09,393 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 240 transitions. Word has length 49 [2022-03-19 02:01:09,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:01:09,408 INFO L478 AbstractCegarLoop]: Abstraction has 156 states and 240 transitions. [2022-03-19 02:01:09,409 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:09,409 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 240 transitions. [2022-03-19 02:01:09,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-19 02:01:09,410 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:01:09,410 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:01:09,411 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 02:01:09,411 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:01:09,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:01:09,412 INFO L85 PathProgramCache]: Analyzing trace with hash 590087869, now seen corresponding path program 1 times [2022-03-19 02:01:09,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:01:09,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146194139] [2022-03-19 02:01:09,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:01:09,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:01:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:09,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:01:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:09,623 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:01:09,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:01:09,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146194139] [2022-03-19 02:01:09,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146194139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:01:09,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:01:09,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:01:09,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450627306] [2022-03-19 02:01:09,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:01:09,630 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:01:09,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:01:09,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:01:09,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:01:09,631 INFO L87 Difference]: Start difference. First operand 156 states and 240 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) [2022-03-19 02:01:12,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:14,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:15,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:01:15,261 INFO L93 Difference]: Finished difference Result 408 states and 634 transitions. [2022-03-19 02:01:15,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:01:15,261 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 [2022-03-19 02:01:15,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:01:15,263 INFO L225 Difference]: With dead ends: 408 [2022-03-19 02:01:15,263 INFO L226 Difference]: Without dead ends: 278 [2022-03-19 02:01:15,264 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:01:15,264 INFO L912 BasicCegarLoop]: 275 mSDtfsCounter, 153 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:01:15,265 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 664 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 637 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-19 02:01:15,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-19 02:01:15,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 172. [2022-03-19 02:01:15,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.562874251497006) internal successors, (261), 167 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:15,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 265 transitions. [2022-03-19 02:01:15,277 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 265 transitions. Word has length 62 [2022-03-19 02:01:15,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:01:15,277 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 265 transitions. [2022-03-19 02:01:15,277 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) [2022-03-19 02:01:15,277 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 265 transitions. [2022-03-19 02:01:15,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-19 02:01:15,279 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:01:15,279 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:01:15,279 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 02:01:15,279 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:01:15,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:01:15,280 INFO L85 PathProgramCache]: Analyzing trace with hash -994828130, now seen corresponding path program 1 times [2022-03-19 02:01:15,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:01:15,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918556346] [2022-03-19 02:01:15,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:01:15,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:01:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:01:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:15,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:01:15,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:01:15,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918556346] [2022-03-19 02:01:15,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918556346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:01:15,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:01:15,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:01:15,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769198021] [2022-03-19 02:01:15,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:01:15,453 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:01:15,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:01:15,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:01:15,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:01:15,454 INFO L87 Difference]: Start difference. First operand 172 states and 265 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:16,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:18,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:20,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:20,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:01:20,825 INFO L93 Difference]: Finished difference Result 334 states and 513 transitions. [2022-03-19 02:01:20,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:01:20,825 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 [2022-03-19 02:01:20,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:01:20,827 INFO L225 Difference]: With dead ends: 334 [2022-03-19 02:01:20,827 INFO L226 Difference]: Without dead ends: 188 [2022-03-19 02:01:20,828 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:01:20,829 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 28 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:01:20,829 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-03-19 02:01:20,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-03-19 02:01:20,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 172. [2022-03-19 02:01:20,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5568862275449102) internal successors, (260), 167 states have internal predecessors, (260), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:20,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 264 transitions. [2022-03-19 02:01:20,845 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 264 transitions. Word has length 63 [2022-03-19 02:01:20,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:01:20,845 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 264 transitions. [2022-03-19 02:01:20,845 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 264 transitions. [2022-03-19 02:01:20,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-19 02:01:20,847 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:01:20,847 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:01:20,847 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 02:01:20,847 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:01:20,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:01:20,848 INFO L85 PathProgramCache]: Analyzing trace with hash -207235970, now seen corresponding path program 1 times [2022-03-19 02:01:20,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:01:20,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031555038] [2022-03-19 02:01:20,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:01:20,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:01:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:20,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:01:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:20,967 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:01:20,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:01:20,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031555038] [2022-03-19 02:01:20,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031555038] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:01:20,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:01:20,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:01:20,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587998999] [2022-03-19 02:01:20,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:01:20,969 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:01:20,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:01:20,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:01:20,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:01:20,969 INFO L87 Difference]: Start difference. First operand 172 states and 264 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:22,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:23,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:01:23,315 INFO L93 Difference]: Finished difference Result 334 states and 512 transitions. [2022-03-19 02:01:23,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:01:23,315 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 [2022-03-19 02:01:23,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:01:23,316 INFO L225 Difference]: With dead ends: 334 [2022-03-19 02:01:23,316 INFO L226 Difference]: Without dead ends: 188 [2022-03-19 02:01:23,317 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:01:23,317 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 26 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:01:23,318 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 503 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 364 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 02:01:23,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-03-19 02:01:23,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 172. [2022-03-19 02:01:23,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5508982035928143) internal successors, (259), 167 states have internal predecessors, (259), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 263 transitions. [2022-03-19 02:01:23,332 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 263 transitions. Word has length 63 [2022-03-19 02:01:23,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:01:23,333 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 263 transitions. [2022-03-19 02:01:23,333 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:23,333 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 263 transitions. [2022-03-19 02:01:23,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-19 02:01:23,334 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:01:23,334 INFO L500 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, 1] [2022-03-19 02:01:23,334 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-19 02:01:23,334 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:01:23,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:01:23,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1559777342, now seen corresponding path program 1 times [2022-03-19 02:01:23,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:01:23,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357317653] [2022-03-19 02:01:23,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:01:23,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:01:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:01:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:23,507 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:01:23,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:01:23,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357317653] [2022-03-19 02:01:23,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357317653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:01:23,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:01:23,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:01:23,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477022478] [2022-03-19 02:01:23,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:01:23,509 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:01:23,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:01:23,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:01:23,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:01:23,510 INFO L87 Difference]: Start difference. First operand 172 states and 263 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:25,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:26,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:01:26,026 INFO L93 Difference]: Finished difference Result 440 states and 683 transitions. [2022-03-19 02:01:26,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:01:26,026 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 [2022-03-19 02:01:26,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:01:26,028 INFO L225 Difference]: With dead ends: 440 [2022-03-19 02:01:26,028 INFO L226 Difference]: Without dead ends: 294 [2022-03-19 02:01:26,028 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:01:26,029 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 152 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:01:26,029 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 360 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 02:01:26,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-03-19 02:01:26,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 189. [2022-03-19 02:01:26,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.5543478260869565) internal successors, (286), 184 states have internal predecessors, (286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:26,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 290 transitions. [2022-03-19 02:01:26,036 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 290 transitions. Word has length 63 [2022-03-19 02:01:26,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:01:26,037 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 290 transitions. [2022-03-19 02:01:26,037 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 290 transitions. [2022-03-19 02:01:26,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-19 02:01:26,038 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:01:26,038 INFO L500 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, 1] [2022-03-19 02:01:26,038 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-19 02:01:26,038 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:01:26,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:01:26,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1101901086, now seen corresponding path program 1 times [2022-03-19 02:01:26,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:01:26,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533169838] [2022-03-19 02:01:26,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:01:26,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:01:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:26,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:01:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:01:26,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:01:26,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533169838] [2022-03-19 02:01:26,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533169838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:01:26,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:01:26,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:01:26,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721579017] [2022-03-19 02:01:26,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:01:26,158 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:01:26,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:01:26,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:01:26,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:01:26,160 INFO L87 Difference]: Start difference. First operand 189 states and 290 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:28,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:29,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:01:29,530 INFO L93 Difference]: Finished difference Result 365 states and 563 transitions. [2022-03-19 02:01:29,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:01:29,531 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 [2022-03-19 02:01:29,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:01:29,532 INFO L225 Difference]: With dead ends: 365 [2022-03-19 02:01:29,532 INFO L226 Difference]: Without dead ends: 202 [2022-03-19 02:01:29,533 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:01:29,533 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 18 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:01:29,533 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-19 02:01:29,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-03-19 02:01:29,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2022-03-19 02:01:29,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.548913043478261) internal successors, (285), 184 states have internal predecessors, (285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:29,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 289 transitions. [2022-03-19 02:01:29,555 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 289 transitions. Word has length 63 [2022-03-19 02:01:29,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:01:29,555 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 289 transitions. [2022-03-19 02:01:29,555 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:29,555 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 289 transitions. [2022-03-19 02:01:29,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-19 02:01:29,556 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:01:29,556 INFO L500 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, 1] [2022-03-19 02:01:29,557 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-19 02:01:29,557 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:01:29,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:01:29,557 INFO L85 PathProgramCache]: Analyzing trace with hash -2045071267, now seen corresponding path program 1 times [2022-03-19 02:01:29,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:01:29,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765515843] [2022-03-19 02:01:29,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:01:29,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:01:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:29,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:01:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:29,679 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:01:29,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:01:29,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765515843] [2022-03-19 02:01:29,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765515843] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:01:29,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:01:29,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:01:29,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430836085] [2022-03-19 02:01:29,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:01:29,680 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:01:29,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:01:29,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:01:29,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:01:29,681 INFO L87 Difference]: Start difference. First operand 189 states and 289 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:30,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:33,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:34,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:35,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:35,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:01:35,950 INFO L93 Difference]: Finished difference Result 365 states and 562 transitions. [2022-03-19 02:01:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:01:35,951 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 [2022-03-19 02:01:35,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:01:35,953 INFO L225 Difference]: With dead ends: 365 [2022-03-19 02:01:35,953 INFO L226 Difference]: Without dead ends: 202 [2022-03-19 02:01:35,953 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:01:35,955 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 22 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-19 02:01:35,955 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-19 02:01:35,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-03-19 02:01:35,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2022-03-19 02:01:35,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.5434782608695652) internal successors, (284), 184 states have internal predecessors, (284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:35,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 288 transitions. [2022-03-19 02:01:35,969 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 288 transitions. Word has length 64 [2022-03-19 02:01:35,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:01:35,969 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 288 transitions. [2022-03-19 02:01:35,969 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:35,969 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 288 transitions. [2022-03-19 02:01:35,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-19 02:01:35,970 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:01:35,970 INFO L500 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, 1] [2022-03-19 02:01:35,970 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-19 02:01:35,970 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:01:35,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:01:35,971 INFO L85 PathProgramCache]: Analyzing trace with hash 673154778, now seen corresponding path program 1 times [2022-03-19 02:01:35,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:01:35,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244382979] [2022-03-19 02:01:35,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:01:35,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:01:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:36,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:01:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:36,071 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:01:36,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:01:36,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244382979] [2022-03-19 02:01:36,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244382979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:01:36,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:01:36,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:01:36,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462139542] [2022-03-19 02:01:36,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:01:36,072 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:01:36,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:01:36,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:01:36,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:01:36,072 INFO L87 Difference]: Start difference. First operand 189 states and 288 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:37,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:38,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:01:38,833 INFO L93 Difference]: Finished difference Result 457 states and 707 transitions. [2022-03-19 02:01:38,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:01:38,833 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 [2022-03-19 02:01:38,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:01:38,834 INFO L225 Difference]: With dead ends: 457 [2022-03-19 02:01:38,835 INFO L226 Difference]: Without dead ends: 294 [2022-03-19 02:01:38,835 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:01:38,835 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 154 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:01:38,836 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 360 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-19 02:01:38,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-03-19 02:01:38,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 189. [2022-03-19 02:01:38,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.5271739130434783) internal successors, (281), 184 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:38,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 285 transitions. [2022-03-19 02:01:38,840 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 285 transitions. Word has length 65 [2022-03-19 02:01:38,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:01:38,841 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 285 transitions. [2022-03-19 02:01:38,841 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:38,841 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 285 transitions. [2022-03-19 02:01:38,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-19 02:01:38,841 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:01:38,841 INFO L500 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, 1] [2022-03-19 02:01:38,842 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-19 02:01:38,842 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:01:38,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:01:38,842 INFO L85 PathProgramCache]: Analyzing trace with hash -216258342, now seen corresponding path program 1 times [2022-03-19 02:01:38,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:01:38,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976490628] [2022-03-19 02:01:38,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:01:38,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:01:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:38,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:01:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:38,947 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:01:38,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:01:38,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976490628] [2022-03-19 02:01:38,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976490628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:01:38,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:01:38,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:01:38,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075848011] [2022-03-19 02:01:38,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:01:38,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:01:38,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:01:38,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:01:38,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:01:38,949 INFO L87 Difference]: Start difference. First operand 189 states and 285 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:40,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:42,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:01:42,557 INFO L93 Difference]: Finished difference Result 355 states and 543 transitions. [2022-03-19 02:01:42,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:01:42,557 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 [2022-03-19 02:01:42,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:01:42,558 INFO L225 Difference]: With dead ends: 355 [2022-03-19 02:01:42,558 INFO L226 Difference]: Without dead ends: 192 [2022-03-19 02:01:42,558 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:01:42,559 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 11 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:01:42,559 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 523 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-19 02:01:42,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-03-19 02:01:42,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 189. [2022-03-19 02:01:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.5217391304347827) internal successors, (280), 184 states have internal predecessors, (280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:42,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 284 transitions. [2022-03-19 02:01:42,563 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 284 transitions. Word has length 66 [2022-03-19 02:01:42,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:01:42,563 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 284 transitions. [2022-03-19 02:01:42,563 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:42,563 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 284 transitions. [2022-03-19 02:01:42,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-19 02:01:42,564 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:01:42,564 INFO L500 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] [2022-03-19 02:01:42,564 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-19 02:01:42,564 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:01:42,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:01:42,564 INFO L85 PathProgramCache]: Analyzing trace with hash -504399797, now seen corresponding path program 1 times [2022-03-19 02:01:42,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:01:42,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305919833] [2022-03-19 02:01:42,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:01:42,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:01:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:42,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:01:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:01:42,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:01:42,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305919833] [2022-03-19 02:01:42,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305919833] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:01:42,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:01:42,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:01:42,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675824069] [2022-03-19 02:01:42,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:01:42,673 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:01:42,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:01:42,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:01:42,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:01:42,673 INFO L87 Difference]: Start difference. First operand 189 states and 284 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:44,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:47,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:47,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:01:47,644 INFO L93 Difference]: Finished difference Result 475 states and 728 transitions. [2022-03-19 02:01:47,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:01:47,645 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 [2022-03-19 02:01:47,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:01:47,646 INFO L225 Difference]: With dead ends: 475 [2022-03-19 02:01:47,646 INFO L226 Difference]: Without dead ends: 312 [2022-03-19 02:01:47,646 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:01:47,647 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 129 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:01:47,647 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-19 02:01:47,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-03-19 02:01:47,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 229. [2022-03-19 02:01:47,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 224 states have (on average 1.5625) internal successors, (350), 224 states have internal predecessors, (350), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:47,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 354 transitions. [2022-03-19 02:01:47,652 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 354 transitions. Word has length 66 [2022-03-19 02:01:47,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:01:47,652 INFO L478 AbstractCegarLoop]: Abstraction has 229 states and 354 transitions. [2022-03-19 02:01:47,652 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 354 transitions. [2022-03-19 02:01:47,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-19 02:01:47,653 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:01:47,653 INFO L500 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, 1] [2022-03-19 02:01:47,654 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-19 02:01:47,654 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:01:47,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:01:47,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1572904911, now seen corresponding path program 1 times [2022-03-19 02:01:47,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:01:47,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624130705] [2022-03-19 02:01:47,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:01:47,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:01:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:47,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:01:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:47,787 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:01:47,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:01:47,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624130705] [2022-03-19 02:01:47,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624130705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:01:47,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:01:47,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:01:47,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78181057] [2022-03-19 02:01:47,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:01:47,788 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:01:47,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:01:47,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:01:47,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:01:47,789 INFO L87 Difference]: Start difference. First operand 229 states and 354 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:49,668 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 [] [2022-03-19 02:01:52,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:01:52,166 INFO L93 Difference]: Finished difference Result 537 states and 841 transitions. [2022-03-19 02:01:52,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:01:52,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-19 02:01:52,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:01:52,168 INFO L225 Difference]: With dead ends: 537 [2022-03-19 02:01:52,168 INFO L226 Difference]: Without dead ends: 334 [2022-03-19 02:01:52,168 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:01:52,169 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 128 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:01:52,169 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 380 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-19 02:01:52,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-03-19 02:01:52,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 252. [2022-03-19 02:01:52,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5991902834008098) internal successors, (395), 247 states have internal predecessors, (395), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:52,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 399 transitions. [2022-03-19 02:01:52,176 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 399 transitions. Word has length 67 [2022-03-19 02:01:52,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:01:52,176 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 399 transitions. [2022-03-19 02:01:52,177 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:52,177 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 399 transitions. [2022-03-19 02:01:52,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-19 02:01:52,177 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:01:52,177 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:01:52,178 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-19 02:01:52,178 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:01:52,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:01:52,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1467131228, now seen corresponding path program 1 times [2022-03-19 02:01:52,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:01:52,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54717113] [2022-03-19 02:01:52,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:01:52,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:01:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:52,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:01:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-19 02:01:52,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:01:52,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54717113] [2022-03-19 02:01:52,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54717113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:01:52,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:01:52,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:01:52,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267172459] [2022-03-19 02:01:52,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:01:52,280 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:01:52,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:01:52,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:01:52,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:01:52,281 INFO L87 Difference]: Start difference. First operand 252 states and 399 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:55,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:57,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:01:58,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:01:58,137 INFO L93 Difference]: Finished difference Result 519 states and 829 transitions. [2022-03-19 02:01:58,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:01:58,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 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 95 [2022-03-19 02:01:58,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:01:58,138 INFO L225 Difference]: With dead ends: 519 [2022-03-19 02:01:58,139 INFO L226 Difference]: Without dead ends: 293 [2022-03-19 02:01:58,139 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:01:58,139 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 31 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-19 02:01:58,140 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 525 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 398 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-19 02:01:58,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-03-19 02:01:58,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 274. [2022-03-19 02:01:58,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5985130111524164) internal successors, (430), 269 states have internal predecessors, (430), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:58,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 434 transitions. [2022-03-19 02:01:58,147 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 434 transitions. Word has length 95 [2022-03-19 02:01:58,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:01:58,148 INFO L478 AbstractCegarLoop]: Abstraction has 274 states and 434 transitions. [2022-03-19 02:01:58,148 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:01:58,148 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 434 transitions. [2022-03-19 02:01:58,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-19 02:01:58,149 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:01:58,149 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:01:58,149 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-19 02:01:58,149 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:01:58,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:01:58,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1395619266, now seen corresponding path program 1 times [2022-03-19 02:01:58,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:01:58,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722976918] [2022-03-19 02:01:58,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:01:58,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:01:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:58,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:01:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:01:58,270 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-19 02:01:58,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:01:58,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722976918] [2022-03-19 02:01:58,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722976918] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:01:58,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:01:58,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:01:58,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26334649] [2022-03-19 02:01:58,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:01:58,272 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:01:58,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:01:58,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:01:58,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:01:58,272 INFO L87 Difference]: Start difference. First operand 274 states and 434 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:00,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:01,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:03,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:04,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:02:04,344 INFO L93 Difference]: Finished difference Result 535 states and 854 transitions. [2022-03-19 02:02:04,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:02:04,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-19 02:02:04,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:02:04,346 INFO L225 Difference]: With dead ends: 535 [2022-03-19 02:02:04,346 INFO L226 Difference]: Without dead ends: 287 [2022-03-19 02:02:04,346 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:02:04,347 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 21 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-19 02:02:04,347 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 590 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-19 02:02:04,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-19 02:02:04,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 274. [2022-03-19 02:02:04,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5947955390334572) internal successors, (429), 269 states have internal predecessors, (429), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:04,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 433 transitions. [2022-03-19 02:02:04,352 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 433 transitions. Word has length 109 [2022-03-19 02:02:04,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:02:04,370 INFO L478 AbstractCegarLoop]: Abstraction has 274 states and 433 transitions. [2022-03-19 02:02:04,370 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:04,370 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 433 transitions. [2022-03-19 02:02:04,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-19 02:02:04,371 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:02:04,371 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:02:04,371 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-19 02:02:04,371 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:02:04,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:02:04,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1655197118, now seen corresponding path program 1 times [2022-03-19 02:02:04,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:02:04,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453394883] [2022-03-19 02:02:04,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:02:04,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:02:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:04,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:02:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:04,455 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 02:02:04,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:02:04,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453394883] [2022-03-19 02:02:04,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453394883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:02:04,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:02:04,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:02:04,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328702865] [2022-03-19 02:02:04,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:02:04,456 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:02:04,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:02:04,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:02:04,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:02:04,457 INFO L87 Difference]: Start difference. First operand 274 states and 433 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) [2022-03-19 02:02:06,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:07,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:08,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:02:08,311 INFO L93 Difference]: Finished difference Result 540 states and 860 transitions. [2022-03-19 02:02:08,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:02:08,311 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 109 [2022-03-19 02:02:08,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:02:08,313 INFO L225 Difference]: With dead ends: 540 [2022-03-19 02:02:08,313 INFO L226 Difference]: Without dead ends: 292 [2022-03-19 02:02:08,313 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:02:08,313 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 34 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-19 02:02:08,314 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 527 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-19 02:02:08,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-03-19 02:02:08,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 274. [2022-03-19 02:02:08,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5910780669144982) internal successors, (428), 269 states have internal predecessors, (428), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:08,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 432 transitions. [2022-03-19 02:02:08,318 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 432 transitions. Word has length 109 [2022-03-19 02:02:08,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:02:08,318 INFO L478 AbstractCegarLoop]: Abstraction has 274 states and 432 transitions. [2022-03-19 02:02:08,319 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) [2022-03-19 02:02:08,319 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 432 transitions. [2022-03-19 02:02:08,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-19 02:02:08,319 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:02:08,319 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:02:08,320 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-19 02:02:08,320 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:02:08,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:02:08,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1978728096, now seen corresponding path program 1 times [2022-03-19 02:02:08,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:02:08,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646829139] [2022-03-19 02:02:08,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:02:08,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:02:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:08,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:02:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:08,460 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-19 02:02:08,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:02:08,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646829139] [2022-03-19 02:02:08,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646829139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:02:08,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:02:08,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 02:02:08,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745352328] [2022-03-19 02:02:08,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:02:08,460 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 02:02:08,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:02:08,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 02:02:08,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:02:08,461 INFO L87 Difference]: Start difference. First operand 274 states and 432 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:09,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:11,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:13,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:15,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:17,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:18,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:02:18,188 INFO L93 Difference]: Finished difference Result 531 states and 846 transitions. [2022-03-19 02:02:18,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 02:02:18,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 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 110 [2022-03-19 02:02:18,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:02:18,189 INFO L225 Difference]: With dead ends: 531 [2022-03-19 02:02:18,189 INFO L226 Difference]: Without dead ends: 283 [2022-03-19 02:02:18,190 INFO L911 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 [2022-03-19 02:02:18,190 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 3 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:02:18,190 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 657 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 438 Invalid, 4 Unknown, 0 Unchecked, 9.7s Time] [2022-03-19 02:02:18,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-03-19 02:02:18,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2022-03-19 02:02:18,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.579136690647482) internal successors, (439), 278 states have internal predecessors, (439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:18,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 443 transitions. [2022-03-19 02:02:18,208 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 443 transitions. Word has length 110 [2022-03-19 02:02:18,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:02:18,208 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 443 transitions. [2022-03-19 02:02:18,208 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:18,208 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 443 transitions. [2022-03-19 02:02:18,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-19 02:02:18,209 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:02:18,209 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:02:18,209 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-19 02:02:18,209 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:02:18,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:02:18,209 INFO L85 PathProgramCache]: Analyzing trace with hash -856380096, now seen corresponding path program 1 times [2022-03-19 02:02:18,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:02:18,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328705755] [2022-03-19 02:02:18,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:02:18,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:02:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:18,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:02:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 02:02:18,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:02:18,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328705755] [2022-03-19 02:02:18,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328705755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:02:18,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:02:18,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:02:18,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362888170] [2022-03-19 02:02:18,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:02:18,322 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:02:18,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:02:18,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:02:18,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:02:18,323 INFO L87 Difference]: Start difference. First operand 283 states and 443 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:20,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:20,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:02:20,671 INFO L93 Difference]: Finished difference Result 567 states and 891 transitions. [2022-03-19 02:02:20,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:02:20,672 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 110 [2022-03-19 02:02:20,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:02:20,673 INFO L225 Difference]: With dead ends: 567 [2022-03-19 02:02:20,673 INFO L226 Difference]: Without dead ends: 310 [2022-03-19 02:02:20,673 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:02:20,674 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 39 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:02:20,674 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 527 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 02:02:20,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-03-19 02:02:20,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 283. [2022-03-19 02:02:20,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5755395683453237) internal successors, (438), 278 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:20,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 442 transitions. [2022-03-19 02:02:20,680 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 442 transitions. Word has length 110 [2022-03-19 02:02:20,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:02:20,680 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 442 transitions. [2022-03-19 02:02:20,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:20,680 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 442 transitions. [2022-03-19 02:02:20,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-19 02:02:20,681 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:02:20,681 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:02:20,681 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-19 02:02:20,681 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:02:20,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:02:20,681 INFO L85 PathProgramCache]: Analyzing trace with hash 451816985, now seen corresponding path program 1 times [2022-03-19 02:02:20,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:02:20,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150390249] [2022-03-19 02:02:20,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:02:20,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:02:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:20,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:02:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:20,797 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 02:02:20,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:02:20,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150390249] [2022-03-19 02:02:20,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150390249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:02:20,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:02:20,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:02:20,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621998829] [2022-03-19 02:02:20,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:02:20,798 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:02:20,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:02:20,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:02:20,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:02:20,799 INFO L87 Difference]: Start difference. First operand 283 states and 442 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:24,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:25,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:02:25,331 INFO L93 Difference]: Finished difference Result 631 states and 982 transitions. [2022-03-19 02:02:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:02:25,331 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 111 [2022-03-19 02:02:25,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:02:25,332 INFO L225 Difference]: With dead ends: 631 [2022-03-19 02:02:25,332 INFO L226 Difference]: Without dead ends: 374 [2022-03-19 02:02:25,333 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:02:25,333 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 154 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:02:25,333 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 380 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-19 02:02:25,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-03-19 02:02:25,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 283. [2022-03-19 02:02:25,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5611510791366907) internal successors, (434), 278 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:25,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 438 transitions. [2022-03-19 02:02:25,338 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 438 transitions. Word has length 111 [2022-03-19 02:02:25,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:02:25,339 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 438 transitions. [2022-03-19 02:02:25,339 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:25,339 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 438 transitions. [2022-03-19 02:02:25,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-19 02:02:25,341 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:02:25,341 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:02:25,341 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-19 02:02:25,341 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:02:25,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:02:25,341 INFO L85 PathProgramCache]: Analyzing trace with hash 329100950, now seen corresponding path program 1 times [2022-03-19 02:02:25,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:02:25,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589891482] [2022-03-19 02:02:25,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:02:25,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:02:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:25,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:02:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:25,459 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 02:02:25,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:02:25,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589891482] [2022-03-19 02:02:25,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589891482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:02:25,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:02:25,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:02:25,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23383699] [2022-03-19 02:02:25,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:02:25,460 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:02:25,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:02:25,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:02:25,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:02:25,460 INFO L87 Difference]: Start difference. First operand 283 states and 438 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:28,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:30,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:32,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:32,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:02:32,374 INFO L93 Difference]: Finished difference Result 557 states and 868 transitions. [2022-03-19 02:02:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:02:32,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-03-19 02:02:32,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:02:32,375 INFO L225 Difference]: With dead ends: 557 [2022-03-19 02:02:32,375 INFO L226 Difference]: Without dead ends: 300 [2022-03-19 02:02:32,376 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:02:32,376 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 33 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:02:32,376 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 529 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 393 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-19 02:02:32,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-03-19 02:02:32,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 283. [2022-03-19 02:02:32,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5575539568345325) internal successors, (433), 278 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:32,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 437 transitions. [2022-03-19 02:02:32,381 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 437 transitions. Word has length 113 [2022-03-19 02:02:32,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:02:32,381 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 437 transitions. [2022-03-19 02:02:32,382 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:32,382 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 437 transitions. [2022-03-19 02:02:32,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-19 02:02:32,382 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:02:32,382 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:02:32,383 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-19 02:02:32,383 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:02:32,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:02:32,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1124427590, now seen corresponding path program 1 times [2022-03-19 02:02:32,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:02:32,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86679779] [2022-03-19 02:02:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:02:32,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:02:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:32,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:02:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:32,457 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 02:02:32,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:02:32,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86679779] [2022-03-19 02:02:32,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86679779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:02:32,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:02:32,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:02:32,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196288416] [2022-03-19 02:02:32,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:02:32,458 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:02:32,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:02:32,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:02:32,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:02:32,459 INFO L87 Difference]: Start difference. First operand 283 states and 437 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:34,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:34,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:02:34,882 INFO L93 Difference]: Finished difference Result 792 states and 1246 transitions. [2022-03-19 02:02:34,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:02:34,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-19 02:02:34,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:02:34,884 INFO L225 Difference]: With dead ends: 792 [2022-03-19 02:02:34,884 INFO L226 Difference]: Without dead ends: 535 [2022-03-19 02:02:34,884 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:02:34,885 INFO L912 BasicCegarLoop]: 347 mSDtfsCounter, 164 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:02:34,885 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 541 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 399 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:02:34,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-03-19 02:02:34,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2022-03-19 02:02:34,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.5509433962264152) internal successors, (822), 530 states have internal predecessors, (822), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:34,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 826 transitions. [2022-03-19 02:02:34,895 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 826 transitions. Word has length 117 [2022-03-19 02:02:34,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:02:34,895 INFO L478 AbstractCegarLoop]: Abstraction has 535 states and 826 transitions. [2022-03-19 02:02:34,895 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:34,896 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 826 transitions. [2022-03-19 02:02:34,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-19 02:02:34,896 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:02:34,896 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:02:34,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-19 02:02:34,897 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:02:34,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:02:34,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1608102917, now seen corresponding path program 1 times [2022-03-19 02:02:34,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:02:34,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354241678] [2022-03-19 02:02:34,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:02:34,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:02:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:35,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:02:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:35,039 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 02:02:35,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:02:35,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354241678] [2022-03-19 02:02:35,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354241678] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:02:35,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:02:35,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:02:35,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332607272] [2022-03-19 02:02:35,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:02:35,040 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:02:35,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:02:35,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:02:35,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:02:35,041 INFO L87 Difference]: Start difference. First operand 535 states and 826 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) [2022-03-19 02:02:36,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:37,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:39,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:39,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:02:39,921 INFO L93 Difference]: Finished difference Result 1255 states and 1932 transitions. [2022-03-19 02:02:39,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:02:39,922 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 117 [2022-03-19 02:02:39,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:02:39,924 INFO L225 Difference]: With dead ends: 1255 [2022-03-19 02:02:39,924 INFO L226 Difference]: Without dead ends: 746 [2022-03-19 02:02:39,925 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:02:39,926 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 94 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:02:39,926 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 523 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-19 02:02:39,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-03-19 02:02:39,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 602. [2022-03-19 02:02:39,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.5628140703517588) internal successors, (933), 597 states have internal predecessors, (933), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:39,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 937 transitions. [2022-03-19 02:02:39,944 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 937 transitions. Word has length 117 [2022-03-19 02:02:39,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:02:39,944 INFO L478 AbstractCegarLoop]: Abstraction has 602 states and 937 transitions. [2022-03-19 02:02:39,944 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) [2022-03-19 02:02:39,944 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 937 transitions. [2022-03-19 02:02:39,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-19 02:02:39,945 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:02:39,945 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:02:39,946 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-19 02:02:39,946 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:02:39,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:02:39,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1361789830, now seen corresponding path program 1 times [2022-03-19 02:02:39,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:02:39,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148593986] [2022-03-19 02:02:39,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:02:39,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:02:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:40,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:02:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:40,045 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-19 02:02:40,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:02:40,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148593986] [2022-03-19 02:02:40,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148593986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:02:40,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:02:40,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:02:40,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982951779] [2022-03-19 02:02:40,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:02:40,046 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:02:40,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:02:40,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:02:40,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:02:40,047 INFO L87 Difference]: Start difference. First operand 602 states and 937 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:42,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:42,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:02:42,507 INFO L93 Difference]: Finished difference Result 1236 states and 1927 transitions. [2022-03-19 02:02:42,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:02:42,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-19 02:02:42,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:02:42,509 INFO L225 Difference]: With dead ends: 1236 [2022-03-19 02:02:42,509 INFO L226 Difference]: Without dead ends: 660 [2022-03-19 02:02:42,510 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:02:42,511 INFO L912 BasicCegarLoop]: 253 mSDtfsCounter, 38 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:02:42,514 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 625 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:02:42,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-03-19 02:02:42,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 626. [2022-03-19 02:02:42,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 621 states have (on average 1.5636070853462158) internal successors, (971), 621 states have internal predecessors, (971), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:42,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 975 transitions. [2022-03-19 02:02:42,526 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 975 transitions. Word has length 117 [2022-03-19 02:02:42,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:02:42,526 INFO L478 AbstractCegarLoop]: Abstraction has 626 states and 975 transitions. [2022-03-19 02:02:42,526 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:42,526 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 975 transitions. [2022-03-19 02:02:42,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-19 02:02:42,527 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:02:42,527 INFO L500 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, 1] [2022-03-19 02:02:42,527 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-19 02:02:42,527 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:02:42,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:02:42,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2029915318, now seen corresponding path program 1 times [2022-03-19 02:02:42,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:02:42,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91917967] [2022-03-19 02:02:42,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:02:42,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:02:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:42,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:02:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-03-19 02:02:42,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:02:42,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91917967] [2022-03-19 02:02:42,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91917967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:02:42,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:02:42,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:02:42,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60892641] [2022-03-19 02:02:42,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:02:42,610 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:02:42,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:02:42,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:02:42,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:02:42,610 INFO L87 Difference]: Start difference. First operand 626 states and 975 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:45,192 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 [] [2022-03-19 02:02:45,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:02:45,427 INFO L93 Difference]: Finished difference Result 1228 states and 1923 transitions. [2022-03-19 02:02:45,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:02:45,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-19 02:02:45,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:02:45,430 INFO L225 Difference]: With dead ends: 1228 [2022-03-19 02:02:45,430 INFO L226 Difference]: Without dead ends: 628 [2022-03-19 02:02:45,431 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:02:45,431 INFO L912 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-19 02:02:45,431 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-19 02:02:45,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-03-19 02:02:45,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2022-03-19 02:02:45,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 623 states have (on average 1.5617977528089888) internal successors, (973), 623 states have internal predecessors, (973), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:45,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 977 transitions. [2022-03-19 02:02:45,440 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 977 transitions. Word has length 122 [2022-03-19 02:02:45,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:02:45,440 INFO L478 AbstractCegarLoop]: Abstraction has 628 states and 977 transitions. [2022-03-19 02:02:45,440 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:45,440 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 977 transitions. [2022-03-19 02:02:45,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-19 02:02:45,441 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:02:45,441 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:02:45,441 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-19 02:02:45,441 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:02:45,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:02:45,442 INFO L85 PathProgramCache]: Analyzing trace with hash 467142555, now seen corresponding path program 1 times [2022-03-19 02:02:45,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:02:45,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175180090] [2022-03-19 02:02:45,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:02:45,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:02:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:45,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:02:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 02:02:45,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:02:45,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175180090] [2022-03-19 02:02:45,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175180090] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:02:45,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:02:45,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:02:45,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376304702] [2022-03-19 02:02:45,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:02:45,527 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:02:45,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:02:45,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:02:45,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:02:45,528 INFO L87 Difference]: Start difference. First operand 628 states and 977 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) [2022-03-19 02:02:46,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:49,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:50,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:02:50,934 INFO L93 Difference]: Finished difference Result 1372 states and 2119 transitions. [2022-03-19 02:02:50,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:02:50,934 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 123 [2022-03-19 02:02:50,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:02:50,936 INFO L225 Difference]: With dead ends: 1372 [2022-03-19 02:02:50,936 INFO L226 Difference]: Without dead ends: 772 [2022-03-19 02:02:50,937 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:02:50,937 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 88 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:02:50,937 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 521 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 532 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-19 02:02:50,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2022-03-19 02:02:50,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 638. [2022-03-19 02:02:50,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 633 states have (on average 1.565560821484992) internal successors, (991), 633 states have internal predecessors, (991), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:50,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 995 transitions. [2022-03-19 02:02:50,946 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 995 transitions. Word has length 123 [2022-03-19 02:02:50,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:02:50,947 INFO L478 AbstractCegarLoop]: Abstraction has 638 states and 995 transitions. [2022-03-19 02:02:50,947 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) [2022-03-19 02:02:50,948 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 995 transitions. [2022-03-19 02:02:50,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-19 02:02:50,950 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:02:50,950 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:02:50,950 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-19 02:02:50,950 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:02:50,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:02:50,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1791142380, now seen corresponding path program 1 times [2022-03-19 02:02:50,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:02:50,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550975801] [2022-03-19 02:02:50,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:02:50,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:02:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:51,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:02:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:51,041 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 02:02:51,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:02:51,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550975801] [2022-03-19 02:02:51,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550975801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:02:51,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:02:51,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:02:51,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342302217] [2022-03-19 02:02:51,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:02:51,042 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:02:51,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:02:51,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:02:51,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:02:51,042 INFO L87 Difference]: Start difference. First operand 638 states and 995 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:53,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:56,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:02:56,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:02:56,942 INFO L93 Difference]: Finished difference Result 1426 states and 2198 transitions. [2022-03-19 02:02:56,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:02:56,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 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 124 [2022-03-19 02:02:56,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:02:56,944 INFO L225 Difference]: With dead ends: 1426 [2022-03-19 02:02:56,944 INFO L226 Difference]: Without dead ends: 816 [2022-03-19 02:02:56,945 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:02:56,946 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 128 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:02:56,946 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 380 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-19 02:02:56,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2022-03-19 02:02:56,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 638. [2022-03-19 02:02:56,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 633 states have (on average 1.5592417061611374) internal successors, (987), 633 states have internal predecessors, (987), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:56,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 991 transitions. [2022-03-19 02:02:56,956 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 991 transitions. Word has length 124 [2022-03-19 02:02:56,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:02:56,956 INFO L478 AbstractCegarLoop]: Abstraction has 638 states and 991 transitions. [2022-03-19 02:02:56,956 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:56,956 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 991 transitions. [2022-03-19 02:02:56,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-19 02:02:56,957 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:02:56,957 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-19 02:02:56,957 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-19 02:02:56,957 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:02:56,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:02:56,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1190647457, now seen corresponding path program 1 times [2022-03-19 02:02:56,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:02:56,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679980945] [2022-03-19 02:02:56,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:02:56,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:02:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:57,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:02:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:02:57,082 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:02:57,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:02:57,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679980945] [2022-03-19 02:02:57,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679980945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:02:57,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:02:57,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:02:57,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364340865] [2022-03-19 02:02:57,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:02:57,083 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:02:57,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:02:57,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:02:57,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:02:57,084 INFO L87 Difference]: Start difference. First operand 638 states and 991 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:02:59,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:00,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:02,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:03:02,143 INFO L93 Difference]: Finished difference Result 1424 states and 2188 transitions. [2022-03-19 02:03:02,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:03:02,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-19 02:03:02,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:03:02,145 INFO L225 Difference]: With dead ends: 1424 [2022-03-19 02:03:02,145 INFO L226 Difference]: Without dead ends: 814 [2022-03-19 02:03:02,146 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:03:02,147 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 147 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-19 02:03:02,147 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 376 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-19 02:03:02,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-03-19 02:03:02,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 638. [2022-03-19 02:03:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 633 states have (on average 1.5481832543443919) internal successors, (980), 633 states have internal predecessors, (980), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:02,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 984 transitions. [2022-03-19 02:03:02,157 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 984 transitions. Word has length 131 [2022-03-19 02:03:02,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:03:02,158 INFO L478 AbstractCegarLoop]: Abstraction has 638 states and 984 transitions. [2022-03-19 02:03:02,158 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:02,158 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 984 transitions. [2022-03-19 02:03:02,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-19 02:03:02,159 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:03:02,159 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:03:02,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-19 02:03:02,159 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:03:02,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:03:02,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1305819021, now seen corresponding path program 1 times [2022-03-19 02:03:02,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:03:02,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585062665] [2022-03-19 02:03:02,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:03:02,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:03:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:02,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:03:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:02,257 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 02:03:02,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:03:02,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585062665] [2022-03-19 02:03:02,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585062665] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:03:02,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:03:02,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:03:02,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882289148] [2022-03-19 02:03:02,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:03:02,258 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:03:02,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:03:02,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:03:02,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:03:02,259 INFO L87 Difference]: Start difference. First operand 638 states and 984 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:04,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:04,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:03:04,768 INFO L93 Difference]: Finished difference Result 1504 states and 2308 transitions. [2022-03-19 02:03:04,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:03:04,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-19 02:03:04,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:03:04,770 INFO L225 Difference]: With dead ends: 1504 [2022-03-19 02:03:04,770 INFO L226 Difference]: Without dead ends: 894 [2022-03-19 02:03:04,771 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:03:04,772 INFO L912 BasicCegarLoop]: 134 mSDtfsCounter, 120 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:03:04,772 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 383 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 02:03:04,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-03-19 02:03:04,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 724. [2022-03-19 02:03:04,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 719 states have (on average 1.5632823365785813) internal successors, (1124), 719 states have internal predecessors, (1124), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:04,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1128 transitions. [2022-03-19 02:03:04,783 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1128 transitions. Word has length 131 [2022-03-19 02:03:04,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:03:04,783 INFO L478 AbstractCegarLoop]: Abstraction has 724 states and 1128 transitions. [2022-03-19 02:03:04,783 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:04,783 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1128 transitions. [2022-03-19 02:03:04,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-19 02:03:04,785 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:03:04,785 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 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, 1] [2022-03-19 02:03:04,785 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-19 02:03:04,785 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:03:04,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:03:04,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1116751295, now seen corresponding path program 1 times [2022-03-19 02:03:04,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:03:04,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517269648] [2022-03-19 02:03:04,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:03:04,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:03:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:04,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:03:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:04,875 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:03:04,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:03:04,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517269648] [2022-03-19 02:03:04,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517269648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:03:04,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:03:04,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:03:04,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108644441] [2022-03-19 02:03:04,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:03:04,875 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:03:04,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:03:04,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:03:04,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:03:04,876 INFO L87 Difference]: Start difference. First operand 724 states and 1128 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) [2022-03-19 02:03:06,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:10,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:10,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:03:10,616 INFO L93 Difference]: Finished difference Result 1546 states and 2388 transitions. [2022-03-19 02:03:10,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:03:10,631 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 [2022-03-19 02:03:10,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:03:10,634 INFO L225 Difference]: With dead ends: 1546 [2022-03-19 02:03:10,634 INFO L226 Difference]: Without dead ends: 850 [2022-03-19 02:03:10,635 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:03:10,635 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 106 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:03:10,636 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 521 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 528 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-19 02:03:10,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2022-03-19 02:03:10,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 724. [2022-03-19 02:03:10,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 719 states have (on average 1.560500695410292) internal successors, (1122), 719 states have internal predecessors, (1122), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:10,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1126 transitions. [2022-03-19 02:03:10,649 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1126 transitions. Word has length 132 [2022-03-19 02:03:10,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:03:10,649 INFO L478 AbstractCegarLoop]: Abstraction has 724 states and 1126 transitions. [2022-03-19 02:03:10,649 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) [2022-03-19 02:03:10,649 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1126 transitions. [2022-03-19 02:03:10,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-19 02:03:10,650 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:03:10,651 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:03:10,651 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-19 02:03:10,651 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:03:10,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:03:10,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1369921516, now seen corresponding path program 1 times [2022-03-19 02:03:10,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:03:10,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620825278] [2022-03-19 02:03:10,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:03:10,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:03:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:10,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:03:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:10,775 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 02:03:10,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:03:10,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620825278] [2022-03-19 02:03:10,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620825278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:03:10,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:03:10,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:03:10,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330328333] [2022-03-19 02:03:10,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:03:10,776 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:03:10,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:03:10,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:03:10,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:03:10,776 INFO L87 Difference]: Start difference. First operand 724 states and 1126 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:12,307 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 [] [2022-03-19 02:03:14,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:16,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:17,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:17,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:03:17,830 INFO L93 Difference]: Finished difference Result 1534 states and 2369 transitions. [2022-03-19 02:03:17,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:03:17,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 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 [2022-03-19 02:03:17,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:03:17,833 INFO L225 Difference]: With dead ends: 1534 [2022-03-19 02:03:17,833 INFO L226 Difference]: Without dead ends: 838 [2022-03-19 02:03:17,834 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:03:17,834 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 69 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-19 02:03:17,834 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 529 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 520 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-19 02:03:17,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-03-19 02:03:17,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 732. [2022-03-19 02:03:17,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 727 states have (on average 1.5543328748280605) internal successors, (1130), 727 states have internal predecessors, (1130), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:17,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1134 transitions. [2022-03-19 02:03:17,845 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1134 transitions. Word has length 132 [2022-03-19 02:03:17,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:03:17,845 INFO L478 AbstractCegarLoop]: Abstraction has 732 states and 1134 transitions. [2022-03-19 02:03:17,845 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:17,845 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1134 transitions. [2022-03-19 02:03:17,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-19 02:03:17,846 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:03:17,846 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 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, 1] [2022-03-19 02:03:17,846 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-19 02:03:17,847 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:03:17,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:03:17,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1970297826, now seen corresponding path program 1 times [2022-03-19 02:03:17,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:03:17,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740547635] [2022-03-19 02:03:17,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:03:17,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:03:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:17,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:03:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:17,962 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:03:17,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:03:17,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740547635] [2022-03-19 02:03:17,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740547635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:03:17,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:03:17,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:03:17,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399926708] [2022-03-19 02:03:17,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:03:17,963 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:03:17,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:03:17,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:03:17,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:03:17,964 INFO L87 Difference]: Start difference. First operand 732 states and 1134 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) [2022-03-19 02:03:19,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:20,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:03:20,381 INFO L93 Difference]: Finished difference Result 1469 states and 2279 transitions. [2022-03-19 02:03:20,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:03:20,382 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 [2022-03-19 02:03:20,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:03:20,383 INFO L225 Difference]: With dead ends: 1469 [2022-03-19 02:03:20,383 INFO L226 Difference]: Without dead ends: 765 [2022-03-19 02:03:20,386 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:03:20,386 INFO L912 BasicCegarLoop]: 252 mSDtfsCounter, 48 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:03:20,386 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 623 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:03:20,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-03-19 02:03:20,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 732. [2022-03-19 02:03:20,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 727 states have (on average 1.5529573590096286) internal successors, (1129), 727 states have internal predecessors, (1129), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:20,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1133 transitions. [2022-03-19 02:03:20,399 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1133 transitions. Word has length 132 [2022-03-19 02:03:20,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:03:20,400 INFO L478 AbstractCegarLoop]: Abstraction has 732 states and 1133 transitions. [2022-03-19 02:03:20,400 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) [2022-03-19 02:03:20,400 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1133 transitions. [2022-03-19 02:03:20,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-19 02:03:20,401 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:03:20,401 INFO L500 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, 1] [2022-03-19 02:03:20,401 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-19 02:03:20,401 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:03:20,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:03:20,401 INFO L85 PathProgramCache]: Analyzing trace with hash 963957175, now seen corresponding path program 1 times [2022-03-19 02:03:20,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:03:20,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955168641] [2022-03-19 02:03:20,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:03:20,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:03:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:20,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:03:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:20,490 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:03:20,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:03:20,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955168641] [2022-03-19 02:03:20,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955168641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:03:20,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:03:20,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:03:20,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810161548] [2022-03-19 02:03:20,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:03:20,491 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:03:20,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:03:20,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:03:20,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:03:20,491 INFO L87 Difference]: Start difference. First operand 732 states and 1133 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:21,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:23,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:25,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:27,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:28,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:03:28,126 INFO L93 Difference]: Finished difference Result 1612 states and 2472 transitions. [2022-03-19 02:03:28,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:03:28,126 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 135 [2022-03-19 02:03:28,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:03:28,129 INFO L225 Difference]: With dead ends: 1612 [2022-03-19 02:03:28,129 INFO L226 Difference]: Without dead ends: 908 [2022-03-19 02:03:28,130 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:03:28,131 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 149 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:03:28,131 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 384 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-03-19 02:03:28,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2022-03-19 02:03:28,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 732. [2022-03-19 02:03:28,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 727 states have (on average 1.5378266850068776) internal successors, (1118), 727 states have internal predecessors, (1118), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:28,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1122 transitions. [2022-03-19 02:03:28,143 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1122 transitions. Word has length 135 [2022-03-19 02:03:28,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:03:28,144 INFO L478 AbstractCegarLoop]: Abstraction has 732 states and 1122 transitions. [2022-03-19 02:03:28,144 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:28,144 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1122 transitions. [2022-03-19 02:03:28,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-19 02:03:28,145 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:03:28,145 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:03:28,145 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-19 02:03:28,145 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:03:28,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:03:28,146 INFO L85 PathProgramCache]: Analyzing trace with hash -81620505, now seen corresponding path program 1 times [2022-03-19 02:03:28,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:03:28,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167883794] [2022-03-19 02:03:28,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:03:28,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:03:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:28,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:03:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:03:28,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:03:28,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167883794] [2022-03-19 02:03:28,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167883794] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:03:28,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:03:28,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:03:28,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372144194] [2022-03-19 02:03:28,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:03:28,267 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:03:28,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:03:28,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:03:28,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:03:28,268 INFO L87 Difference]: Start difference. First operand 732 states and 1122 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:29,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:32,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:32,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:03:32,778 INFO L93 Difference]: Finished difference Result 1612 states and 2450 transitions. [2022-03-19 02:03:32,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:03:32,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 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 139 [2022-03-19 02:03:32,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:03:32,781 INFO L225 Difference]: With dead ends: 1612 [2022-03-19 02:03:32,781 INFO L226 Difference]: Without dead ends: 908 [2022-03-19 02:03:32,782 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:03:32,782 INFO L912 BasicCegarLoop]: 142 mSDtfsCounter, 139 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:03:32,783 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 398 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-19 02:03:32,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2022-03-19 02:03:32,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 732. [2022-03-19 02:03:32,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 727 states have (on average 1.5268225584594224) internal successors, (1110), 727 states have internal predecessors, (1110), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:32,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1114 transitions. [2022-03-19 02:03:32,794 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1114 transitions. Word has length 139 [2022-03-19 02:03:32,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:03:32,794 INFO L478 AbstractCegarLoop]: Abstraction has 732 states and 1114 transitions. [2022-03-19 02:03:32,794 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:32,794 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1114 transitions. [2022-03-19 02:03:32,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-19 02:03:32,795 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:03:32,795 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:03:32,795 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-19 02:03:32,796 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:03:32,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:03:32,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1051911512, now seen corresponding path program 1 times [2022-03-19 02:03:32,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:03:32,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663005583] [2022-03-19 02:03:32,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:03:32,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:03:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:32,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:03:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:32,878 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-19 02:03:32,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:03:32,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663005583] [2022-03-19 02:03:32,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663005583] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:03:32,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:03:32,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:03:32,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655318860] [2022-03-19 02:03:32,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:03:32,879 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:03:32,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:03:32,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:03:32,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:03:32,880 INFO L87 Difference]: Start difference. First operand 732 states and 1114 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) [2022-03-19 02:03:34,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:36,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:37,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:03:37,834 INFO L93 Difference]: Finished difference Result 1554 states and 2360 transitions. [2022-03-19 02:03:37,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:03:37,834 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 139 [2022-03-19 02:03:37,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:03:37,836 INFO L225 Difference]: With dead ends: 1554 [2022-03-19 02:03:37,836 INFO L226 Difference]: Without dead ends: 850 [2022-03-19 02:03:37,837 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:03:37,837 INFO L912 BasicCegarLoop]: 252 mSDtfsCounter, 38 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:03:37,838 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 623 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-19 02:03:37,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2022-03-19 02:03:37,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 784. [2022-03-19 02:03:37,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 779 states have (on average 1.5250320924261873) internal successors, (1188), 779 states have internal predecessors, (1188), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:37,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1192 transitions. [2022-03-19 02:03:37,849 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1192 transitions. Word has length 139 [2022-03-19 02:03:37,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:03:37,849 INFO L478 AbstractCegarLoop]: Abstraction has 784 states and 1192 transitions. [2022-03-19 02:03:37,849 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) [2022-03-19 02:03:37,849 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1192 transitions. [2022-03-19 02:03:37,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-03-19 02:03:37,850 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:03:37,850 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:03:37,851 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-19 02:03:37,851 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:03:37,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:03:37,851 INFO L85 PathProgramCache]: Analyzing trace with hash -30045473, now seen corresponding path program 1 times [2022-03-19 02:03:37,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:03:37,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468104955] [2022-03-19 02:03:37,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:03:37,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:03:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:37,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:03:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:37,935 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:03:37,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:03:37,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468104955] [2022-03-19 02:03:37,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468104955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:03:37,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:03:37,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:03:37,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971417317] [2022-03-19 02:03:37,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:03:37,936 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:03:37,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:03:37,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:03:37,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:03:37,936 INFO L87 Difference]: Start difference. First operand 784 states and 1192 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) [2022-03-19 02:03:41,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:42,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:42,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:03:42,841 INFO L93 Difference]: Finished difference Result 1626 states and 2465 transitions. [2022-03-19 02:03:42,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:03:42,841 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 [2022-03-19 02:03:42,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:03:42,844 INFO L225 Difference]: With dead ends: 1626 [2022-03-19 02:03:42,844 INFO L226 Difference]: Without dead ends: 870 [2022-03-19 02:03:42,844 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:03:42,845 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 78 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:03:42,845 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 541 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-19 02:03:42,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2022-03-19 02:03:42,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 784. [2022-03-19 02:03:42,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 779 states have (on average 1.5224646983311938) internal successors, (1186), 779 states have internal predecessors, (1186), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:42,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1190 transitions. [2022-03-19 02:03:42,856 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1190 transitions. Word has length 142 [2022-03-19 02:03:42,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:03:42,856 INFO L478 AbstractCegarLoop]: Abstraction has 784 states and 1190 transitions. [2022-03-19 02:03:42,856 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) [2022-03-19 02:03:42,856 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1190 transitions. [2022-03-19 02:03:42,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-19 02:03:42,857 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:03:42,858 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:03:42,858 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-19 02:03:42,858 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:03:42,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:03:42,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1238333083, now seen corresponding path program 1 times [2022-03-19 02:03:42,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:03:42,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953812444] [2022-03-19 02:03:42,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:03:42,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:03:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:43,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:03:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:43,005 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:03:43,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:03:43,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953812444] [2022-03-19 02:03:43,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953812444] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:03:43,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:03:43,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:03:43,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337294387] [2022-03-19 02:03:43,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:03:43,006 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:03:43,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:03:43,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:03:43,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:03:43,006 INFO L87 Difference]: Start difference. First operand 784 states and 1190 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) [2022-03-19 02:03:44,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:46,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:48,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:49,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:03:49,309 INFO L93 Difference]: Finished difference Result 1716 states and 2586 transitions. [2022-03-19 02:03:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:03:49,309 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 [2022-03-19 02:03:49,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:03:49,311 INFO L225 Difference]: With dead ends: 1716 [2022-03-19 02:03:49,312 INFO L226 Difference]: Without dead ends: 960 [2022-03-19 02:03:49,312 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:03:49,313 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 134 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:03:49,313 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 384 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-19 02:03:49,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-03-19 02:03:49,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 784. [2022-03-19 02:03:49,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 779 states have (on average 1.5121951219512195) internal successors, (1178), 779 states have internal predecessors, (1178), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:49,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1182 transitions. [2022-03-19 02:03:49,324 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1182 transitions. Word has length 143 [2022-03-19 02:03:49,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:03:49,324 INFO L478 AbstractCegarLoop]: Abstraction has 784 states and 1182 transitions. [2022-03-19 02:03:49,325 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) [2022-03-19 02:03:49,325 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1182 transitions. [2022-03-19 02:03:49,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-19 02:03:49,326 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:03:49,326 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1] [2022-03-19 02:03:49,326 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-19 02:03:49,326 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:03:49,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:03:49,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1434976918, now seen corresponding path program 1 times [2022-03-19 02:03:49,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:03:49,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567702172] [2022-03-19 02:03:49,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:03:49,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:03:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:49,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:03:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:49,410 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-19 02:03:49,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:03:49,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567702172] [2022-03-19 02:03:49,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567702172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:03:49,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:03:49,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:03:49,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995461173] [2022-03-19 02:03:49,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:03:49,411 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:03:49,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:03:49,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:03:49,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:03:49,412 INFO L87 Difference]: Start difference. First operand 784 states and 1182 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) [2022-03-19 02:03:52,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:54,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:56,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:03:56,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:03:56,837 INFO L93 Difference]: Finished difference Result 1285 states and 1936 transitions. [2022-03-19 02:03:56,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:03:56,838 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 144 [2022-03-19 02:03:56,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:03:56,839 INFO L225 Difference]: With dead ends: 1285 [2022-03-19 02:03:56,839 INFO L226 Difference]: Without dead ends: 529 [2022-03-19 02:03:56,840 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:03:56,840 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 151 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:03:56,841 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 487 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-03-19 02:03:56,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-03-19 02:03:56,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 448. [2022-03-19 02:03:56,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 443 states have (on average 1.4830699774266365) internal successors, (657), 443 states have internal predecessors, (657), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:03:56,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 661 transitions. [2022-03-19 02:03:56,850 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 661 transitions. Word has length 144 [2022-03-19 02:03:56,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:03:56,850 INFO L478 AbstractCegarLoop]: Abstraction has 448 states and 661 transitions. [2022-03-19 02:03:56,850 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) [2022-03-19 02:03:56,850 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 661 transitions. [2022-03-19 02:03:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-19 02:03:56,851 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:03:56,851 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:03:56,851 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-19 02:03:56,851 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:03:56,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:03:56,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1789601228, now seen corresponding path program 1 times [2022-03-19 02:03:56,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:03:56,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196608144] [2022-03-19 02:03:56,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:03:56,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:03:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:56,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:03:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:03:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:03:56,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:03:56,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196608144] [2022-03-19 02:03:56,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196608144] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:03:56,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:03:56,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:03:56,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738490374] [2022-03-19 02:03:56,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:03:56,942 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:03:56,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:03:56,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:03:56,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:03:56,943 INFO L87 Difference]: Start difference. First operand 448 states and 661 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) [2022-03-19 02:03:59,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:00,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:00,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:04:00,647 INFO L93 Difference]: Finished difference Result 992 states and 1474 transitions. [2022-03-19 02:04:00,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:04:00,648 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 [2022-03-19 02:04:00,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:04:00,649 INFO L225 Difference]: With dead ends: 992 [2022-03-19 02:04:00,649 INFO L226 Difference]: Without dead ends: 572 [2022-03-19 02:04:00,650 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:04:00,652 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 131 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:04:00,653 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 384 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-19 02:04:00,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-03-19 02:04:00,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 478. [2022-03-19 02:04:00,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.477801268498943) internal successors, (699), 473 states have internal predecessors, (699), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:00,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 703 transitions. [2022-03-19 02:04:00,660 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 703 transitions. Word has length 144 [2022-03-19 02:04:00,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:04:00,660 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 703 transitions. [2022-03-19 02:04:00,660 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) [2022-03-19 02:04:00,660 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 703 transitions. [2022-03-19 02:04:00,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-19 02:04:00,661 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:04:00,661 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-03-19 02:04:00,661 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-19 02:04:00,661 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:04:00,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:04:00,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1236073746, now seen corresponding path program 1 times [2022-03-19 02:04:00,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:04:00,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584978488] [2022-03-19 02:04:00,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:04:00,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:04:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:00,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:04:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:00,788 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:04:00,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:04:00,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584978488] [2022-03-19 02:04:00,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584978488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:04:00,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:04:00,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:04:00,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870589354] [2022-03-19 02:04:00,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:04:00,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:04:00,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:04:00,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:04:00,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:04:00,791 INFO L87 Difference]: Start difference. First operand 478 states and 703 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:03,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:05,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:07,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:07,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:04:07,901 INFO L93 Difference]: Finished difference Result 955 states and 1411 transitions. [2022-03-19 02:04:07,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:04:07,901 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 [2022-03-19 02:04:07,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:04:07,902 INFO L225 Difference]: With dead ends: 955 [2022-03-19 02:04:07,902 INFO L226 Difference]: Without dead ends: 505 [2022-03-19 02:04:07,903 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:04:07,903 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 61 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-19 02:04:07,903 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 547 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2022-03-19 02:04:07,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-03-19 02:04:07,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 478. [2022-03-19 02:04:07,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4756871035940804) internal successors, (698), 473 states have internal predecessors, (698), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:07,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 702 transitions. [2022-03-19 02:04:07,911 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 702 transitions. Word has length 145 [2022-03-19 02:04:07,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:04:07,911 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 702 transitions. [2022-03-19 02:04:07,912 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:07,912 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 702 transitions. [2022-03-19 02:04:07,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-19 02:04:07,913 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:04:07,913 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:04:07,913 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-19 02:04:07,913 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:04:07,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:04:07,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2083258222, now seen corresponding path program 1 times [2022-03-19 02:04:07,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:04:07,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996632589] [2022-03-19 02:04:07,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:04:07,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:04:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:08,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:04:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:08,004 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:04:08,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:04:08,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996632589] [2022-03-19 02:04:08,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996632589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:04:08,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:04:08,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:04:08,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084976504] [2022-03-19 02:04:08,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:04:08,006 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:04:08,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:04:08,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:04:08,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:04:08,007 INFO L87 Difference]: Start difference. First operand 478 states and 702 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:09,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:12,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:14,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:14,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:04:14,875 INFO L93 Difference]: Finished difference Result 1009 states and 1488 transitions. [2022-03-19 02:04:14,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:04:14,876 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 [2022-03-19 02:04:14,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:04:14,877 INFO L225 Difference]: With dead ends: 1009 [2022-03-19 02:04:14,877 INFO L226 Difference]: Without dead ends: 559 [2022-03-19 02:04:14,878 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:04:14,878 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 130 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-19 02:04:14,878 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 487 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-19 02:04:14,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-03-19 02:04:14,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 478. [2022-03-19 02:04:14,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.46723044397463) internal successors, (694), 473 states have internal predecessors, (694), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:14,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 698 transitions. [2022-03-19 02:04:14,885 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 698 transitions. Word has length 145 [2022-03-19 02:04:14,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:04:14,885 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 698 transitions. [2022-03-19 02:04:14,885 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:14,885 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 698 transitions. [2022-03-19 02:04:14,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-19 02:04:14,886 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:04:14,886 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-03-19 02:04:14,886 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-19 02:04:14,886 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:04:14,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:04:14,887 INFO L85 PathProgramCache]: Analyzing trace with hash -932365580, now seen corresponding path program 1 times [2022-03-19 02:04:14,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:04:14,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435623728] [2022-03-19 02:04:14,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:04:14,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:04:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:14,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:04:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:14,982 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:04:14,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:04:14,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435623728] [2022-03-19 02:04:14,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435623728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:04:14,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:04:14,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:04:14,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494865674] [2022-03-19 02:04:14,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:04:14,983 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:04:14,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:04:14,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:04:14,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:04:14,984 INFO L87 Difference]: Start difference. First operand 478 states and 698 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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) [2022-03-19 02:04:16,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:18,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:19,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:20,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:04:20,697 INFO L93 Difference]: Finished difference Result 951 states and 1396 transitions. [2022-03-19 02:04:20,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:04:20,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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 146 [2022-03-19 02:04:20,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:04:20,699 INFO L225 Difference]: With dead ends: 951 [2022-03-19 02:04:20,699 INFO L226 Difference]: Without dead ends: 501 [2022-03-19 02:04:20,700 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:04:20,700 INFO L912 BasicCegarLoop]: 217 mSDtfsCounter, 56 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:04:20,700 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 555 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-19 02:04:20,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-03-19 02:04:20,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 478. [2022-03-19 02:04:20,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4651162790697674) internal successors, (693), 473 states have internal predecessors, (693), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:20,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 697 transitions. [2022-03-19 02:04:20,706 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 697 transitions. Word has length 146 [2022-03-19 02:04:20,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:04:20,707 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 697 transitions. [2022-03-19 02:04:20,707 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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) [2022-03-19 02:04:20,707 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 697 transitions. [2022-03-19 02:04:20,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-19 02:04:20,718 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:04:20,718 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:04:20,719 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-19 02:04:20,719 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:04:20,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:04:20,719 INFO L85 PathProgramCache]: Analyzing trace with hash 423911587, now seen corresponding path program 1 times [2022-03-19 02:04:20,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:04:20,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243711856] [2022-03-19 02:04:20,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:04:20,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:04:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:20,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:04:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:20,841 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:04:20,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:04:20,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243711856] [2022-03-19 02:04:20,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243711856] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:04:20,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:04:20,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:04:20,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626521010] [2022-03-19 02:04:20,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:04:20,842 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:04:20,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:04:20,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:04:20,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:04:20,842 INFO L87 Difference]: Start difference. First operand 478 states and 697 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) [2022-03-19 02:04:21,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:24,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:25,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:26,603 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 [] [2022-03-19 02:04:26,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:04:26,981 INFO L93 Difference]: Finished difference Result 951 states and 1394 transitions. [2022-03-19 02:04:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:04:26,982 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 [2022-03-19 02:04:26,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:04:26,983 INFO L225 Difference]: With dead ends: 951 [2022-03-19 02:04:26,983 INFO L226 Difference]: Without dead ends: 501 [2022-03-19 02:04:26,984 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:04:26,984 INFO L912 BasicCegarLoop]: 217 mSDtfsCounter, 49 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-19 02:04:26,984 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 555 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-19 02:04:26,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-03-19 02:04:26,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 478. [2022-03-19 02:04:26,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4630021141649048) internal successors, (692), 473 states have internal predecessors, (692), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:26,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 696 transitions. [2022-03-19 02:04:26,990 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 696 transitions. Word has length 149 [2022-03-19 02:04:26,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:04:26,990 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 696 transitions. [2022-03-19 02:04:26,990 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) [2022-03-19 02:04:26,991 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 696 transitions. [2022-03-19 02:04:26,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-19 02:04:26,991 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:04:26,991 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:04:26,992 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-19 02:04:26,992 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:04:26,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:04:26,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1331112290, now seen corresponding path program 1 times [2022-03-19 02:04:26,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:04:26,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345129245] [2022-03-19 02:04:26,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:04:26,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:04:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:27,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:04:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:27,083 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:04:27,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:04:27,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345129245] [2022-03-19 02:04:27,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345129245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:04:27,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:04:27,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:04:27,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015916671] [2022-03-19 02:04:27,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:04:27,084 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:04:27,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:04:27,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:04:27,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:04:27,084 INFO L87 Difference]: Start difference. First operand 478 states and 696 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:29,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:30,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:04:30,784 INFO L93 Difference]: Finished difference Result 1009 states and 1476 transitions. [2022-03-19 02:04:30,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:04:30,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 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 150 [2022-03-19 02:04:30,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:04:30,786 INFO L225 Difference]: With dead ends: 1009 [2022-03-19 02:04:30,786 INFO L226 Difference]: Without dead ends: 559 [2022-03-19 02:04:30,787 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:04:30,787 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 126 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:04:30,787 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-03-19 02:04:30,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-03-19 02:04:30,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 478. [2022-03-19 02:04:30,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4545454545454546) internal successors, (688), 473 states have internal predecessors, (688), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:30,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 692 transitions. [2022-03-19 02:04:30,795 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 692 transitions. Word has length 150 [2022-03-19 02:04:30,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:04:30,795 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 692 transitions. [2022-03-19 02:04:30,795 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:30,795 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 692 transitions. [2022-03-19 02:04:30,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-19 02:04:30,796 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:04:30,796 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:04:30,796 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-19 02:04:30,796 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:04:30,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:04:30,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1878533287, now seen corresponding path program 1 times [2022-03-19 02:04:30,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:04:30,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195810577] [2022-03-19 02:04:30,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:04:30,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:04:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:30,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:04:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:04:30,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:04:30,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195810577] [2022-03-19 02:04:30,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195810577] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:04:30,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:04:30,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:04:30,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896232918] [2022-03-19 02:04:30,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:04:30,900 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:04:30,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:04:30,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:04:30,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:04:30,901 INFO L87 Difference]: Start difference. First operand 478 states and 692 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:33,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:36,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:36,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:04:36,942 INFO L93 Difference]: Finished difference Result 1052 states and 1533 transitions. [2022-03-19 02:04:36,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:04:36,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 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 150 [2022-03-19 02:04:36,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:04:36,944 INFO L225 Difference]: With dead ends: 1052 [2022-03-19 02:04:36,944 INFO L226 Difference]: Without dead ends: 602 [2022-03-19 02:04:36,945 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:04:36,945 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 124 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 57 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-19 02:04:36,945 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 384 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 488 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-19 02:04:36,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-03-19 02:04:36,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 513. [2022-03-19 02:04:36,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.4507874015748032) internal successors, (737), 508 states have internal predecessors, (737), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:36,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 741 transitions. [2022-03-19 02:04:36,952 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 741 transitions. Word has length 150 [2022-03-19 02:04:36,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:04:36,953 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 741 transitions. [2022-03-19 02:04:36,953 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:36,953 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 741 transitions. [2022-03-19 02:04:36,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-03-19 02:04:36,953 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:04:36,954 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:04:36,954 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-19 02:04:36,954 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:04:36,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:04:36,958 INFO L85 PathProgramCache]: Analyzing trace with hash -200206081, now seen corresponding path program 1 times [2022-03-19 02:04:36,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:04:36,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391998834] [2022-03-19 02:04:36,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:04:36,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:04:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:37,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:04:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:04:37,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:04:37,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391998834] [2022-03-19 02:04:37,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391998834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:04:37,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:04:37,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:04:37,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186607532] [2022-03-19 02:04:37,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:04:37,078 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:04:37,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:04:37,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:04:37,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:04:37,079 INFO L87 Difference]: Start difference. First operand 513 states and 741 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:39,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:41,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:42,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:42,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:04:42,735 INFO L93 Difference]: Finished difference Result 1012 states and 1469 transitions. [2022-03-19 02:04:42,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:04:42,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 [2022-03-19 02:04:42,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:04:42,737 INFO L225 Difference]: With dead ends: 1012 [2022-03-19 02:04:42,737 INFO L226 Difference]: Without dead ends: 527 [2022-03-19 02:04:42,737 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:04:42,738 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 33 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:04:42,738 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 561 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-19 02:04:42,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-03-19 02:04:42,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 513. [2022-03-19 02:04:42,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.4488188976377954) internal successors, (736), 508 states have internal predecessors, (736), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:42,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 740 transitions. [2022-03-19 02:04:42,745 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 740 transitions. Word has length 151 [2022-03-19 02:04:42,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:04:42,745 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 740 transitions. [2022-03-19 02:04:42,745 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:42,745 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 740 transitions. [2022-03-19 02:04:42,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-19 02:04:42,746 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:04:42,746 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:04:42,746 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-19 02:04:42,746 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:04:42,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:04:42,747 INFO L85 PathProgramCache]: Analyzing trace with hash 721708220, now seen corresponding path program 1 times [2022-03-19 02:04:42,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:04:42,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142038869] [2022-03-19 02:04:42,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:04:42,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:04:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:42,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:04:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-19 02:04:42,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:04:42,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142038869] [2022-03-19 02:04:42,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142038869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:04:42,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:04:42,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:04:42,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124152196] [2022-03-19 02:04:42,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:04:42,844 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:04:42,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:04:42,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:04:42,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:04:42,845 INFO L87 Difference]: Start difference. First operand 513 states and 740 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) [2022-03-19 02:04:44,063 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 [] [2022-03-19 02:04:46,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:48,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:49,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:04:49,267 INFO L93 Difference]: Finished difference Result 1069 states and 1551 transitions. [2022-03-19 02:04:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:04:49,268 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 154 [2022-03-19 02:04:49,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:04:49,269 INFO L225 Difference]: With dead ends: 1069 [2022-03-19 02:04:49,269 INFO L226 Difference]: Without dead ends: 584 [2022-03-19 02:04:49,270 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:04:49,270 INFO L912 BasicCegarLoop]: 146 mSDtfsCounter, 140 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:04:49,270 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 406 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-19 02:04:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-03-19 02:04:49,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 513. [2022-03-19 02:04:49,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.43503937007874) internal successors, (729), 508 states have internal predecessors, (729), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 733 transitions. [2022-03-19 02:04:49,289 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 733 transitions. Word has length 154 [2022-03-19 02:04:49,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:04:49,289 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 733 transitions. [2022-03-19 02:04:49,289 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) [2022-03-19 02:04:49,289 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 733 transitions. [2022-03-19 02:04:49,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-19 02:04:49,290 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:04:49,290 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:04:49,290 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-19 02:04:49,290 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:04:49,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:04:49,291 INFO L85 PathProgramCache]: Analyzing trace with hash -293704765, now seen corresponding path program 1 times [2022-03-19 02:04:49,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:04:49,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052661189] [2022-03-19 02:04:49,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:04:49,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:04:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:49,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:04:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:49,399 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:04:49,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:04:49,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052661189] [2022-03-19 02:04:49,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052661189] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:04:49,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:04:49,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:04:49,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215632450] [2022-03-19 02:04:49,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:04:49,400 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:04:49,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:04:49,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:04:49,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:04:49,400 INFO L87 Difference]: Start difference. First operand 513 states and 733 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:50,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:52,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:54,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:55,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:04:55,160 INFO L93 Difference]: Finished difference Result 1453 states and 2098 transitions. [2022-03-19 02:04:55,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:04:55,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 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 158 [2022-03-19 02:04:55,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:04:55,164 INFO L225 Difference]: With dead ends: 1453 [2022-03-19 02:04:55,164 INFO L226 Difference]: Without dead ends: 968 [2022-03-19 02:04:55,164 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:04:55,165 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 145 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:04:55,165 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 433 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 292 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-19 02:04:55,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-03-19 02:04:55,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2022-03-19 02:04:55,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4330218068535825) internal successors, (1380), 963 states have internal predecessors, (1380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:55,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1384 transitions. [2022-03-19 02:04:55,177 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1384 transitions. Word has length 158 [2022-03-19 02:04:55,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:04:55,177 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1384 transitions. [2022-03-19 02:04:55,177 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:55,177 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1384 transitions. [2022-03-19 02:04:55,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-03-19 02:04:55,178 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:04:55,179 INFO L500 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, 1, 1, 1] [2022-03-19 02:04:55,179 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-19 02:04:55,179 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:04:55,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:04:55,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1249774760, now seen corresponding path program 1 times [2022-03-19 02:04:55,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:04:55,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061593994] [2022-03-19 02:04:55,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:04:55,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:04:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:55,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:04:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:55,307 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-19 02:04:55,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:04:55,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061593994] [2022-03-19 02:04:55,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061593994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:04:55,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:04:55,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:04:55,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008790298] [2022-03-19 02:04:55,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:04:55,308 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:04:55,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:04:55,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:04:55,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:04:55,309 INFO L87 Difference]: Start difference. First operand 968 states and 1384 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:57,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:04:57,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:04:57,727 INFO L93 Difference]: Finished difference Result 2204 states and 3161 transitions. [2022-03-19 02:04:57,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:04:57,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 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 169 [2022-03-19 02:04:57,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:04:57,736 INFO L225 Difference]: With dead ends: 2204 [2022-03-19 02:04:57,736 INFO L226 Difference]: Without dead ends: 1264 [2022-03-19 02:04:57,737 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:04:57,738 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 118 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:04:57,738 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 396 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:04:57,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2022-03-19 02:04:57,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1096. [2022-03-19 02:04:57,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.4298808432630614) internal successors, (1560), 1091 states have internal predecessors, (1560), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:57,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1564 transitions. [2022-03-19 02:04:57,754 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1564 transitions. Word has length 169 [2022-03-19 02:04:57,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:04:57,754 INFO L478 AbstractCegarLoop]: Abstraction has 1096 states and 1564 transitions. [2022-03-19 02:04:57,755 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:57,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1564 transitions. [2022-03-19 02:04:57,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-19 02:04:57,756 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:04:57,756 INFO L500 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, 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] [2022-03-19 02:04:57,756 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-19 02:04:57,756 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:04:57,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:04:57,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1656372398, now seen corresponding path program 1 times [2022-03-19 02:04:57,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:04:57,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613380785] [2022-03-19 02:04:57,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:04:57,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:04:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:57,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:04:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:04:57,856 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-03-19 02:04:57,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:04:57,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613380785] [2022-03-19 02:04:57,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613380785] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:04:57,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:04:57,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:04:57,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678390932] [2022-03-19 02:04:57,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:04:57,857 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:04:57,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:04:57,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:04:57,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:04:57,858 INFO L87 Difference]: Start difference. First operand 1096 states and 1564 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:04:59,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:00,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:00,450 INFO L93 Difference]: Finished difference Result 2264 states and 3243 transitions. [2022-03-19 02:05:00,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:05:00,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 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 175 [2022-03-19 02:05:00,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:00,453 INFO L225 Difference]: With dead ends: 2264 [2022-03-19 02:05:00,453 INFO L226 Difference]: Without dead ends: 1196 [2022-03-19 02:05:00,454 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:05:00,454 INFO L912 BasicCegarLoop]: 250 mSDtfsCounter, 40 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:00,454 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 619 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-19 02:05:00,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2022-03-19 02:05:00,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1152. [2022-03-19 02:05:00,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1147 states have (on average 1.4315605928509154) internal successors, (1642), 1147 states have internal predecessors, (1642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:00,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1646 transitions. [2022-03-19 02:05:00,468 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1646 transitions. Word has length 175 [2022-03-19 02:05:00,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:00,469 INFO L478 AbstractCegarLoop]: Abstraction has 1152 states and 1646 transitions. [2022-03-19 02:05:00,469 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:00,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1646 transitions. [2022-03-19 02:05:00,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-03-19 02:05:00,470 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:00,470 INFO L500 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, 1, 1, 1, 1] [2022-03-19 02:05:00,470 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-19 02:05:00,471 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:00,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:00,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1721152593, now seen corresponding path program 1 times [2022-03-19 02:05:00,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:00,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147255846] [2022-03-19 02:05:00,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:00,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:00,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:00,571 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-03-19 02:05:00,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:00,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147255846] [2022-03-19 02:05:00,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147255846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:00,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:00,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:05:00,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663902899] [2022-03-19 02:05:00,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:00,572 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:05:00,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:00,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:05:00,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:00,572 INFO L87 Difference]: Start difference. First operand 1152 states and 1646 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:02,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:04,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:05,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:05,233 INFO L93 Difference]: Finished difference Result 2823 states and 4055 transitions. [2022-03-19 02:05:05,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:05:05,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 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 200 [2022-03-19 02:05:05,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:05,236 INFO L225 Difference]: With dead ends: 2823 [2022-03-19 02:05:05,236 INFO L226 Difference]: Without dead ends: 1699 [2022-03-19 02:05:05,238 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:05,238 INFO L912 BasicCegarLoop]: 389 mSDtfsCounter, 147 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:05,238 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 583 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 443 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-19 02:05:05,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-03-19 02:05:05,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2022-03-19 02:05:05,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1694 states have (on average 1.4309327036599764) internal successors, (2424), 1694 states have internal predecessors, (2424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2428 transitions. [2022-03-19 02:05:05,259 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2428 transitions. Word has length 200 [2022-03-19 02:05:05,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:05,259 INFO L478 AbstractCegarLoop]: Abstraction has 1699 states and 2428 transitions. [2022-03-19 02:05:05,259 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:05,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2428 transitions. [2022-03-19 02:05:05,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-03-19 02:05:05,262 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:05,262 INFO L500 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, 1, 1, 1, 1, 1] [2022-03-19 02:05:05,262 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-19 02:05:05,262 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:05,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:05,262 INFO L85 PathProgramCache]: Analyzing trace with hash -864047940, now seen corresponding path program 1 times [2022-03-19 02:05:05,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:05,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535878719] [2022-03-19 02:05:05,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:05,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:05,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:05,372 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-03-19 02:05:05,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:05,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535878719] [2022-03-19 02:05:05,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535878719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:05,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:05,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:05:05,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384319600] [2022-03-19 02:05:05,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:05,372 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:05:05,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:05,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:05:05,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:05,373 INFO L87 Difference]: Start difference. First operand 1699 states and 2428 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:08,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:10,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:10,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:10,678 INFO L93 Difference]: Finished difference Result 3918 states and 5620 transitions. [2022-03-19 02:05:10,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:05:10,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 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 201 [2022-03-19 02:05:10,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:10,683 INFO L225 Difference]: With dead ends: 3918 [2022-03-19 02:05:10,683 INFO L226 Difference]: Without dead ends: 2247 [2022-03-19 02:05:10,685 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:10,685 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:10,687 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 384 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 259 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-03-19 02:05:10,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2022-03-19 02:05:10,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 2247. [2022-03-19 02:05:10,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2247 states, 2242 states have (on average 1.4330954504906335) internal successors, (3213), 2242 states have internal predecessors, (3213), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:10,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2247 states to 2247 states and 3217 transitions. [2022-03-19 02:05:10,767 INFO L78 Accepts]: Start accepts. Automaton has 2247 states and 3217 transitions. Word has length 201 [2022-03-19 02:05:10,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:10,767 INFO L478 AbstractCegarLoop]: Abstraction has 2247 states and 3217 transitions. [2022-03-19 02:05:10,767 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:10,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2247 states and 3217 transitions. [2022-03-19 02:05:10,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-03-19 02:05:10,770 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:10,770 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:05:10,770 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-19 02:05:10,770 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:10,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:10,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1153640501, now seen corresponding path program 1 times [2022-03-19 02:05:10,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:10,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300732857] [2022-03-19 02:05:10,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:10,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:10,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:10,883 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-03-19 02:05:10,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:10,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300732857] [2022-03-19 02:05:10,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300732857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:10,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:10,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:05:10,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453901037] [2022-03-19 02:05:10,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:10,884 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:05:10,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:10,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:05:10,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:10,884 INFO L87 Difference]: Start difference. First operand 2247 states and 3217 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:13,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:13,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:13,482 INFO L93 Difference]: Finished difference Result 5013 states and 7190 transitions. [2022-03-19 02:05:13,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:05:13,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (3), 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 233 [2022-03-19 02:05:13,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:13,487 INFO L225 Difference]: With dead ends: 5013 [2022-03-19 02:05:13,487 INFO L226 Difference]: Without dead ends: 2794 [2022-03-19 02:05:13,489 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:13,489 INFO L912 BasicCegarLoop]: 391 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:13,490 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 585 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 02:05:13,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2022-03-19 02:05:13,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 2794. [2022-03-19 02:05:13,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2789 states have (on average 1.4324130512728577) internal successors, (3995), 2789 states have internal predecessors, (3995), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:13,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3999 transitions. [2022-03-19 02:05:13,527 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3999 transitions. Word has length 233 [2022-03-19 02:05:13,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:13,527 INFO L478 AbstractCegarLoop]: Abstraction has 2794 states and 3999 transitions. [2022-03-19 02:05:13,527 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:13,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3999 transitions. [2022-03-19 02:05:13,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-19 02:05:13,531 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:13,531 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:05:13,531 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-19 02:05:13,531 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:13,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:13,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1539767600, now seen corresponding path program 1 times [2022-03-19 02:05:13,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:13,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646672251] [2022-03-19 02:05:13,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:13,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:13,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:13,645 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-19 02:05:13,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:13,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646672251] [2022-03-19 02:05:13,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646672251] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:13,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:13,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:05:13,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695575898] [2022-03-19 02:05:13,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:13,646 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:05:13,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:13,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:05:13,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:13,646 INFO L87 Difference]: Start difference. First operand 2794 states and 3999 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:14,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:16,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:17,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:17,577 INFO L93 Difference]: Finished difference Result 6108 states and 8762 transitions. [2022-03-19 02:05:17,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:05:17,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 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 239 [2022-03-19 02:05:17,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:17,582 INFO L225 Difference]: With dead ends: 6108 [2022-03-19 02:05:17,582 INFO L226 Difference]: Without dead ends: 3342 [2022-03-19 02:05:17,585 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:17,585 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 162 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:17,585 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 383 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-19 02:05:17,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3342 states. [2022-03-19 02:05:17,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3342 to 3342. [2022-03-19 02:05:17,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3342 states, 3337 states have (on average 1.4339226850464488) internal successors, (4785), 3337 states have internal predecessors, (4785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:17,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3342 states to 3342 states and 4789 transitions. [2022-03-19 02:05:17,628 INFO L78 Accepts]: Start accepts. Automaton has 3342 states and 4789 transitions. Word has length 239 [2022-03-19 02:05:17,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:17,628 INFO L478 AbstractCegarLoop]: Abstraction has 3342 states and 4789 transitions. [2022-03-19 02:05:17,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:17,628 INFO L276 IsEmpty]: Start isEmpty. Operand 3342 states and 4789 transitions. [2022-03-19 02:05:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-03-19 02:05:17,632 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:17,632 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:05:17,632 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-19 02:05:17,633 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:17,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:17,633 INFO L85 PathProgramCache]: Analyzing trace with hash -117759833, now seen corresponding path program 1 times [2022-03-19 02:05:17,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:17,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722645987] [2022-03-19 02:05:17,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:17,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:17,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:17,763 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-19 02:05:17,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:17,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722645987] [2022-03-19 02:05:17,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722645987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:17,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:17,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:05:17,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518613132] [2022-03-19 02:05:17,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:17,764 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:05:17,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:17,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:05:17,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:17,765 INFO L87 Difference]: Start difference. First operand 3342 states and 4789 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:19,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:21,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:21,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:21,559 INFO L93 Difference]: Finished difference Result 7204 states and 10342 transitions. [2022-03-19 02:05:21,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:05:21,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 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 241 [2022-03-19 02:05:21,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:21,564 INFO L225 Difference]: With dead ends: 7204 [2022-03-19 02:05:21,564 INFO L226 Difference]: Without dead ends: 3890 [2022-03-19 02:05:21,567 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:21,568 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 163 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:21,569 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 382 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-19 02:05:21,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3890 states. [2022-03-19 02:05:21,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3890 to 3890. [2022-03-19 02:05:21,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3890 states, 3885 states have (on average 1.4352638352638352) internal successors, (5576), 3885 states have internal predecessors, (5576), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:21,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 5580 transitions. [2022-03-19 02:05:21,624 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 5580 transitions. Word has length 241 [2022-03-19 02:05:21,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:21,624 INFO L478 AbstractCegarLoop]: Abstraction has 3890 states and 5580 transitions. [2022-03-19 02:05:21,624 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:21,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 5580 transitions. [2022-03-19 02:05:21,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-03-19 02:05:21,629 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:21,629 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:05:21,629 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-19 02:05:21,629 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:21,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:21,629 INFO L85 PathProgramCache]: Analyzing trace with hash -352741277, now seen corresponding path program 1 times [2022-03-19 02:05:21,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:21,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224488412] [2022-03-19 02:05:21,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:21,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:21,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:21,775 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-03-19 02:05:21,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:21,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224488412] [2022-03-19 02:05:21,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224488412] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:21,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:21,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:05:21,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048981524] [2022-03-19 02:05:21,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:21,776 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:05:21,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:21,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:05:21,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:21,777 INFO L87 Difference]: Start difference. First operand 3890 states and 5580 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 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) [2022-03-19 02:05:25,013 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 [] [2022-03-19 02:05:25,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:25,465 INFO L93 Difference]: Finished difference Result 8295 states and 11917 transitions. [2022-03-19 02:05:25,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:05:25,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 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 274 [2022-03-19 02:05:25,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:25,471 INFO L225 Difference]: With dead ends: 8295 [2022-03-19 02:05:25,472 INFO L226 Difference]: Without dead ends: 4433 [2022-03-19 02:05:25,476 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:25,476 INFO L912 BasicCegarLoop]: 388 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:25,476 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 582 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 440 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-03-19 02:05:25,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2022-03-19 02:05:25,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 4433. [2022-03-19 02:05:25,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 4428 states have (on average 1.4347335140018067) internal successors, (6353), 4428 states have internal predecessors, (6353), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:25,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6357 transitions. [2022-03-19 02:05:25,555 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6357 transitions. Word has length 274 [2022-03-19 02:05:25,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:25,556 INFO L478 AbstractCegarLoop]: Abstraction has 4433 states and 6357 transitions. [2022-03-19 02:05:25,556 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 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) [2022-03-19 02:05:25,556 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6357 transitions. [2022-03-19 02:05:25,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-03-19 02:05:25,561 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:25,561 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:05:25,561 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-19 02:05:25,561 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:25,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:25,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1108838722, now seen corresponding path program 1 times [2022-03-19 02:05:25,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:25,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109629403] [2022-03-19 02:05:25,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:25,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:25,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:25,701 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-03-19 02:05:25,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:25,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109629403] [2022-03-19 02:05:25,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109629403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:25,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:25,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:05:25,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103903877] [2022-03-19 02:05:25,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:25,701 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:05:25,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:25,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:05:25,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:25,702 INFO L87 Difference]: Start difference. First operand 4433 states and 6357 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:27,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:28,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:28,222 INFO L93 Difference]: Finished difference Result 9353 states and 13431 transitions. [2022-03-19 02:05:28,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:05:28,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 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 274 [2022-03-19 02:05:28,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:28,230 INFO L225 Difference]: With dead ends: 9353 [2022-03-19 02:05:28,230 INFO L226 Difference]: Without dead ends: 4948 [2022-03-19 02:05:28,236 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:28,236 INFO L912 BasicCegarLoop]: 391 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:28,236 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 585 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 443 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 02:05:28,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4948 states. [2022-03-19 02:05:28,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4948 to 4948. [2022-03-19 02:05:28,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4948 states, 4943 states have (on average 1.4341493020432936) internal successors, (7089), 4943 states have internal predecessors, (7089), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:28,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4948 states to 4948 states and 7093 transitions. [2022-03-19 02:05:28,335 INFO L78 Accepts]: Start accepts. Automaton has 4948 states and 7093 transitions. Word has length 274 [2022-03-19 02:05:28,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:28,336 INFO L478 AbstractCegarLoop]: Abstraction has 4948 states and 7093 transitions. [2022-03-19 02:05:28,336 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:28,336 INFO L276 IsEmpty]: Start isEmpty. Operand 4948 states and 7093 transitions. [2022-03-19 02:05:28,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-03-19 02:05:28,342 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:28,343 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:05:28,343 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-19 02:05:28,343 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:28,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:28,343 INFO L85 PathProgramCache]: Analyzing trace with hash -107701387, now seen corresponding path program 1 times [2022-03-19 02:05:28,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:28,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733665507] [2022-03-19 02:05:28,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:28,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:28,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:28,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2022-03-19 02:05:28,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:28,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733665507] [2022-03-19 02:05:28,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733665507] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:28,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:28,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:05:28,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890832707] [2022-03-19 02:05:28,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:28,513 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:05:28,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:28,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:05:28,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:28,513 INFO L87 Difference]: Start difference. First operand 4948 states and 7093 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:30,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:32,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:34,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:34,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:34,325 INFO L93 Difference]: Finished difference Result 10416 states and 14950 transitions. [2022-03-19 02:05:34,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:05:34,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (3), 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 348 [2022-03-19 02:05:34,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:34,332 INFO L225 Difference]: With dead ends: 10416 [2022-03-19 02:05:34,332 INFO L226 Difference]: Without dead ends: 5496 [2022-03-19 02:05:34,337 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:34,338 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:34,338 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 379 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 260 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-19 02:05:34,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5496 states. [2022-03-19 02:05:34,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5496 to 5496. [2022-03-19 02:05:34,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5496 states, 5491 states have (on average 1.4356219267892916) internal successors, (7883), 5491 states have internal predecessors, (7883), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:34,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5496 states to 5496 states and 7887 transitions. [2022-03-19 02:05:34,441 INFO L78 Accepts]: Start accepts. Automaton has 5496 states and 7887 transitions. Word has length 348 [2022-03-19 02:05:34,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:34,441 INFO L478 AbstractCegarLoop]: Abstraction has 5496 states and 7887 transitions. [2022-03-19 02:05:34,441 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:34,441 INFO L276 IsEmpty]: Start isEmpty. Operand 5496 states and 7887 transitions. [2022-03-19 02:05:34,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-03-19 02:05:34,448 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:34,449 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:05:34,449 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-19 02:05:34,449 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:34,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:34,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1664082659, now seen corresponding path program 1 times [2022-03-19 02:05:34,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:34,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378127800] [2022-03-19 02:05:34,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:34,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:34,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:34,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 941 trivial. 0 not checked. [2022-03-19 02:05:34,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:34,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378127800] [2022-03-19 02:05:34,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378127800] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:34,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:34,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:05:34,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657422827] [2022-03-19 02:05:34,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:34,655 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:05:34,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:34,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:05:34,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:34,655 INFO L87 Difference]: Start difference. First operand 5496 states and 7887 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:35,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:37,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:38,482 INFO L93 Difference]: Finished difference Result 6046 states and 8684 transitions. [2022-03-19 02:05:38,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:05:38,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (3), 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 389 [2022-03-19 02:05:38,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:38,489 INFO L225 Difference]: With dead ends: 6046 [2022-03-19 02:05:38,489 INFO L226 Difference]: Without dead ends: 6044 [2022-03-19 02:05:38,490 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:05:38,490 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 155 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:38,490 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 378 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-19 02:05:38,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6044 states. [2022-03-19 02:05:38,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6044 to 6044. [2022-03-19 02:05:38,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6044 states, 6039 states have (on average 1.4369928796158304) internal successors, (8678), 6039 states have internal predecessors, (8678), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:38,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6044 states to 6044 states and 8682 transitions. [2022-03-19 02:05:38,611 INFO L78 Accepts]: Start accepts. Automaton has 6044 states and 8682 transitions. Word has length 389 [2022-03-19 02:05:38,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:38,615 INFO L478 AbstractCegarLoop]: Abstraction has 6044 states and 8682 transitions. [2022-03-19 02:05:38,615 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:38,615 INFO L276 IsEmpty]: Start isEmpty. Operand 6044 states and 8682 transitions. [2022-03-19 02:05:38,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-03-19 02:05:38,622 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:38,623 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:05:38,623 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-19 02:05:38,623 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:38,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:38,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1764989462, now seen corresponding path program 1 times [2022-03-19 02:05:38,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:38,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823405967] [2022-03-19 02:05:38,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:38,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:38,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:38,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 717 proven. 0 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2022-03-19 02:05:38,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:38,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823405967] [2022-03-19 02:05:38,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823405967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:38,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:38,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:05:38,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535100840] [2022-03-19 02:05:38,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:38,891 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:05:38,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:38,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:05:38,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:05:38,891 INFO L87 Difference]: Start difference. First operand 6044 states and 8682 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:41,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:43,217 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 [] [2022-03-19 02:05:44,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:44,431 INFO L93 Difference]: Finished difference Result 12961 states and 18579 transitions. [2022-03-19 02:05:44,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:05:44,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 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 397 [2022-03-19 02:05:44,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:44,439 INFO L225 Difference]: With dead ends: 12961 [2022-03-19 02:05:44,439 INFO L226 Difference]: Without dead ends: 6945 [2022-03-19 02:05:44,446 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:05:44,446 INFO L912 BasicCegarLoop]: 271 mSDtfsCounter, 64 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:44,446 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 661 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 583 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-19 02:05:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6945 states. [2022-03-19 02:05:44,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6945 to 6495. [2022-03-19 02:05:44,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6495 states, 6490 states have (on average 1.4354391371340525) internal successors, (9316), 6490 states have internal predecessors, (9316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:44,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6495 states to 6495 states and 9320 transitions. [2022-03-19 02:05:44,561 INFO L78 Accepts]: Start accepts. Automaton has 6495 states and 9320 transitions. Word has length 397 [2022-03-19 02:05:44,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:44,561 INFO L478 AbstractCegarLoop]: Abstraction has 6495 states and 9320 transitions. [2022-03-19 02:05:44,561 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:44,561 INFO L276 IsEmpty]: Start isEmpty. Operand 6495 states and 9320 transitions. [2022-03-19 02:05:44,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-03-19 02:05:44,572 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:44,573 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:05:44,573 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-19 02:05:44,573 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:44,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:44,574 INFO L85 PathProgramCache]: Analyzing trace with hash -2056458891, now seen corresponding path program 1 times [2022-03-19 02:05:44,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:44,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28736887] [2022-03-19 02:05:44,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:44,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:45,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:45,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-03-19 02:05:45,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:45,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28736887] [2022-03-19 02:05:45,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28736887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:45,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:45,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-19 02:05:45,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626883678] [2022-03-19 02:05:45,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:45,262 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-19 02:05:45,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:45,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-19 02:05:45,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-19 02:05:45,262 INFO L87 Difference]: Start difference. First operand 6495 states and 9320 transitions. Second operand has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:48,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:50,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:51,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:51,474 INFO L93 Difference]: Finished difference Result 12983 states and 18632 transitions. [2022-03-19 02:05:51,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-19 02:05:51,474 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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 397 [2022-03-19 02:05:51,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:51,479 INFO L225 Difference]: With dead ends: 12983 [2022-03-19 02:05:51,479 INFO L226 Difference]: Without dead ends: 6495 [2022-03-19 02:05:51,483 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-19 02:05:51,484 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 7 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:51,484 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 872 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-19 02:05:51,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6495 states. [2022-03-19 02:05:51,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6495 to 6495. [2022-03-19 02:05:51,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6495 states, 6490 states have (on average 1.4352850539291218) internal successors, (9315), 6490 states have internal predecessors, (9315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:51,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6495 states to 6495 states and 9319 transitions. [2022-03-19 02:05:51,563 INFO L78 Accepts]: Start accepts. Automaton has 6495 states and 9319 transitions. Word has length 397 [2022-03-19 02:05:51,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:51,563 INFO L478 AbstractCegarLoop]: Abstraction has 6495 states and 9319 transitions. [2022-03-19 02:05:51,563 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:51,563 INFO L276 IsEmpty]: Start isEmpty. Operand 6495 states and 9319 transitions. [2022-03-19 02:05:51,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-03-19 02:05:51,569 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:51,569 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:05:51,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-19 02:05:51,569 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:51,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:51,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1001650358, now seen corresponding path program 1 times [2022-03-19 02:05:51,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:51,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336976235] [2022-03-19 02:05:51,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:51,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:53,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:53,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 140 proven. 1228 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-03-19 02:05:53,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:53,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336976235] [2022-03-19 02:05:53,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336976235] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:05:53,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066533257] [2022-03-19 02:05:53,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:53,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:05:53,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:05:53,408 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:05:53,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-19 02:05:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:54,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 2032 conjuncts, 253 conjunts are in the unsatisfiable core [2022-03-19 02:05:54,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:05:55,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:05:55,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:05:56,477 INFO L356 Elim1Store]: treesize reduction 520, result has 8.1 percent of original size [2022-03-19 02:05:56,479 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 23994990 treesize of output 21865134 [2022-03-19 02:06:09,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:09,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:09,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:09,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:09,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:09,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:19,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:06:58,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:07:31,471 WARN L232 SmtUtils]: Spent 30.08s on a formula simplification. DAG size of input: 346 DAG size of output: 126 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-03-19 02:07:31,480 INFO L356 Elim1Store]: treesize reduction 15763, result has 11.5 percent of original size [2022-03-19 02:07:32,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 7 stores, 3 select indices, 3 select index equivalence classes, 22 disjoint index pairs (out of 3 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 3059461249852944398 treesize of output 1673620735560334835