/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.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 12:13:01,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 12:13:01,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 12:13:01,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 12:13:01,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 12:13:01,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 12:13:01,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 12:13:01,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 12:13:01,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 12:13:01,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 12:13:01,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 12:13:01,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 12:13:01,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 12:13:01,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 12:13:01,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 12:13:01,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 12:13:01,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 12:13:01,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 12:13:01,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 12:13:01,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 12:13:01,448 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 12:13:01,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 12:13:01,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 12:13:01,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 12:13:01,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 12:13:01,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 12:13:01,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 12:13:01,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 12:13:01,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 12:13:01,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 12:13:01,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 12:13:01,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 12:13:01,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 12:13:01,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 12:13:01,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 12:13:01,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 12:13:01,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 12:13:01,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 12:13:01,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 12:13:01,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 12:13:01,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 12:13:01,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 12:13:01,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-20 12:13:01,502 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 12:13:01,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 12:13:01,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 12:13:01,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 12:13:01,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 12:13:01,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 12:13:01,506 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 12:13:01,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 12:13:01,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 12:13:01,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 12:13:01,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 12:13:01,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 12:13:01,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 12:13:01,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 12:13:01,507 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 12:13:01,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 12:13:01,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 12:13:01,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 12:13:01,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 12:13:01,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:13:01,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 12:13:01,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 12:13:01,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 12:13:01,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 12:13:01,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 12:13:01,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 12:13:01,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-20 12:13:01,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-20 12:13:01,510 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 12:13:01,510 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 12:13:01,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 12:13:01,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 12:13:01,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 12:13:01,779 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 12:13:01,780 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 12:13:01,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-03-20 12:13:01,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7b1d806/47fcb19ce8d04593aa6358a69486513e/FLAG2ea362b02 [2022-03-20 12:13:02,317 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 12:13:02,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-03-20 12:13:02,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7b1d806/47fcb19ce8d04593aa6358a69486513e/FLAG2ea362b02 [2022-03-20 12:13:02,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7b1d806/47fcb19ce8d04593aa6358a69486513e [2022-03-20 12:13:02,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 12:13:02,356 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 12:13:02,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 12:13:02,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 12:13:02,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 12:13:02,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:13:02" (1/1) ... [2022-03-20 12:13:02,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aff7379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:13:02, skipping insertion in model container [2022-03-20 12:13:02,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:13:02" (1/1) ... [2022-03-20 12:13:02,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 12:13:02,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 12:13:02,766 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.01.i.cil-1.c[72918,72931] [2022-03-20 12:13:02,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:13:02,787 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 12:13:02,875 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.01.i.cil-1.c[72918,72931] [2022-03-20 12:13:02,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:13:02,898 INFO L208 MainTranslator]: Completed translation [2022-03-20 12:13:02,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:13:02 WrapperNode [2022-03-20 12:13:02,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 12:13:02,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 12:13:02,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 12:13:02,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 12:13:02,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:13:02" (1/1) ... [2022-03-20 12:13:02,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:13:02" (1/1) ... [2022-03-20 12:13:02,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:13:02" (1/1) ... [2022-03-20 12:13:02,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:13:02" (1/1) ... [2022-03-20 12:13:03,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:13:02" (1/1) ... [2022-03-20 12:13:03,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:13:02" (1/1) ... [2022-03-20 12:13:03,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:13:02" (1/1) ... [2022-03-20 12:13:03,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 12:13:03,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 12:13:03,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 12:13:03,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 12:13:03,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:13:02" (1/1) ... [2022-03-20 12:13:03,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:13:03,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:13:03,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 12:13:03,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 12:13:03,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 12:13:03,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 12:13:03,113 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 12:13:03,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 12:13:03,113 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 12:13:03,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 12:13:03,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 12:13:03,114 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 12:13:03,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 12:13:03,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 12:13:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 12:13:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 12:13:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 12:13:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 12:13:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 12:13:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 12:13:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 12:13:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 12:13:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 12:13:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 12:13:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 12:13:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 12:13:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 12:13:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 12:13:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 12:13:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 12:13:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 12:13:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 12:13:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 12:13:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 12:13:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 12:13:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 12:13:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 12:13:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 12:13:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 12:13:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 12:13:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 12:13:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 12:13:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 12:13:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 12:13:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 12:13:03,295 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 12:13:03,297 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 12:13:05,663 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 12:13:06,060 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 12:13:06,061 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 12:13:06,071 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 12:13:06,078 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 12:13:06,078 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 12:13:06,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:13:06 BoogieIcfgContainer [2022-03-20 12:13:06,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 12:13:06,081 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 12:13:06,081 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 12:13:06,082 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 12:13:06,085 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:13:06" (1/1) ... [2022-03-20 12:13:06,086 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-03-20 12:13:06,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:13:06 BasicIcfg [2022-03-20 12:13:06,125 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 12:13:06,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 12:13:06,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 12:13:06,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 12:13:06,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 12:13:02" (1/4) ... [2022-03-20 12:13:06,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8e42f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:13:06, skipping insertion in model container [2022-03-20 12:13:06,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:13:02" (2/4) ... [2022-03-20 12:13:06,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8e42f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:13:06, skipping insertion in model container [2022-03-20 12:13:06,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:13:06" (3/4) ... [2022-03-20 12:13:06,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8e42f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 12:13:06, skipping insertion in model container [2022-03-20 12:13:06,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:13:06" (4/4) ... [2022-03-20 12:13:06,131 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-1.cqvasr [2022-03-20 12:13:06,135 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 12:13:06,135 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 12:13:06,211 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 12:13:06,218 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 12:13:06,219 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 12:13:06,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 12:13:06,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-20 12:13:06,244 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:06,244 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:06,245 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:06,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:06,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1394707426, now seen corresponding path program 1 times [2022-03-20 12:13:06,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:06,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743945774] [2022-03-20 12:13:06,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:06,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:06,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:06,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:13:06,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:06,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743945774] [2022-03-20 12:13:06,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743945774] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:06,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:06,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:06,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218490073] [2022-03-20 12:13:06,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:06,830 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:06,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:06,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:06,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:06,867 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:08,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:10,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:12,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:14,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:14,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:14,835 INFO L93 Difference]: Finished difference Result 328 states and 543 transitions. [2022-03-20 12:13:14,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:14,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 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 53 [2022-03-20 12:13:14,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:14,845 INFO L225 Difference]: With dead ends: 328 [2022-03-20 12:13:14,845 INFO L226 Difference]: Without dead ends: 167 [2022-03-20 12:13:14,848 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:14,851 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 33 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:14,852 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 583 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 404 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-03-20 12:13:14,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-03-20 12:13:14,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-03-20 12:13:14,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5379310344827586) internal successors, (223), 145 states have internal predecessors, (223), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:14,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 227 transitions. [2022-03-20 12:13:14,892 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 227 transitions. Word has length 53 [2022-03-20 12:13:14,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:14,892 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 227 transitions. [2022-03-20 12:13:14,893 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:14,893 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 227 transitions. [2022-03-20 12:13:14,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 12:13:14,895 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:14,895 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:14,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 12:13:14,896 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:14,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:14,896 INFO L85 PathProgramCache]: Analyzing trace with hash 129396056, now seen corresponding path program 1 times [2022-03-20 12:13:14,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:14,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416154722] [2022-03-20 12:13:14,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:14,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:15,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:15,111 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:13:15,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:15,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416154722] [2022-03-20 12:13:15,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416154722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:15,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:15,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:15,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982188746] [2022-03-20 12:13:15,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:15,113 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:15,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:15,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:15,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:15,114 INFO L87 Difference]: Start difference. First operand 150 states and 227 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:16,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:18,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:20,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:22,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:22,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:22,748 INFO L93 Difference]: Finished difference Result 291 states and 437 transitions. [2022-03-20 12:13:22,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:22,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 12:13:22,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:22,753 INFO L225 Difference]: With dead ends: 291 [2022-03-20 12:13:22,753 INFO L226 Difference]: Without dead ends: 167 [2022-03-20 12:13:22,754 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:22,755 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 24 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:22,755 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 462 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 354 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-03-20 12:13:22,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-03-20 12:13:22,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-03-20 12:13:22,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5310344827586206) internal successors, (222), 145 states have internal predecessors, (222), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:22,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 226 transitions. [2022-03-20 12:13:22,768 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 226 transitions. Word has length 66 [2022-03-20 12:13:22,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:22,769 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 226 transitions. [2022-03-20 12:13:22,769 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:22,769 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 226 transitions. [2022-03-20 12:13:22,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 12:13:22,771 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:22,771 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:22,771 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 12:13:22,772 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:22,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:22,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1322799816, now seen corresponding path program 1 times [2022-03-20 12:13:22,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:22,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684527115] [2022-03-20 12:13:22,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:22,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:22,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:22,971 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:13:22,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:22,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684527115] [2022-03-20 12:13:22,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684527115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:22,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:22,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:22,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829958669] [2022-03-20 12:13:22,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:22,973 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:22,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:22,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:22,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:22,974 INFO L87 Difference]: Start difference. First operand 150 states and 226 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) [2022-03-20 12:13:24,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:25,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:25,397 INFO L93 Difference]: Finished difference Result 289 states and 434 transitions. [2022-03-20 12:13:25,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:25,398 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 [2022-03-20 12:13:25,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:25,400 INFO L225 Difference]: With dead ends: 289 [2022-03-20 12:13:25,400 INFO L226 Difference]: Without dead ends: 165 [2022-03-20 12:13:25,401 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:25,402 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:25,402 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 466 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 349 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:25,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-03-20 12:13:25,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 150. [2022-03-20 12:13:25,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5241379310344827) internal successors, (221), 145 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:25,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 225 transitions. [2022-03-20 12:13:25,412 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 225 transitions. Word has length 67 [2022-03-20 12:13:25,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:25,412 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 225 transitions. [2022-03-20 12:13:25,412 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) [2022-03-20 12:13:25,413 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 225 transitions. [2022-03-20 12:13:25,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 12:13:25,414 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:25,414 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:25,414 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 12:13:25,414 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:25,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:25,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1617230023, now seen corresponding path program 1 times [2022-03-20 12:13:25,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:25,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375459658] [2022-03-20 12:13:25,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:25,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:25,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:25,545 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:13:25,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:25,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375459658] [2022-03-20 12:13:25,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375459658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:25,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:25,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:25,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603758422] [2022-03-20 12:13:25,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:25,547 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:25,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:25,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:25,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:25,548 INFO L87 Difference]: Start difference. First operand 150 states and 225 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) [2022-03-20 12:13:27,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:28,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:30,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:32,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:33,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:33,102 INFO L93 Difference]: Finished difference Result 288 states and 432 transitions. [2022-03-20 12:13:33,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:33,102 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 [2022-03-20 12:13:33,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:33,104 INFO L225 Difference]: With dead ends: 288 [2022-03-20 12:13:33,104 INFO L226 Difference]: Without dead ends: 164 [2022-03-20 12:13:33,105 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:33,106 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 20 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:33,106 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 468 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 349 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-03-20 12:13:33,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-03-20 12:13:33,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 150. [2022-03-20 12:13:33,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5172413793103448) internal successors, (220), 145 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:33,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 224 transitions. [2022-03-20 12:13:33,114 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 224 transitions. Word has length 67 [2022-03-20 12:13:33,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:33,115 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 224 transitions. [2022-03-20 12:13:33,115 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) [2022-03-20 12:13:33,115 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 224 transitions. [2022-03-20 12:13:33,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 12:13:33,116 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:33,116 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:33,116 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 12:13:33,117 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:33,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:33,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1990338884, now seen corresponding path program 1 times [2022-03-20 12:13:33,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:33,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845325509] [2022-03-20 12:13:33,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:33,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:33,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:33,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:13:33,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:33,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845325509] [2022-03-20 12:13:33,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845325509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:33,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:33,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:33,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338148478] [2022-03-20 12:13:33,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:33,245 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:33,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:33,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:33,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:33,246 INFO L87 Difference]: Start difference. First operand 150 states and 224 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:34,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:36,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:38,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:40,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:40,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:40,527 INFO L93 Difference]: Finished difference Result 287 states and 430 transitions. [2022-03-20 12:13:40,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:40,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 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 68 [2022-03-20 12:13:40,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:40,529 INFO L225 Difference]: With dead ends: 287 [2022-03-20 12:13:40,529 INFO L226 Difference]: Without dead ends: 163 [2022-03-20 12:13:40,530 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:40,530 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:40,531 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 470 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 347 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-03-20 12:13:40,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-03-20 12:13:40,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 150. [2022-03-20 12:13:40,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5103448275862068) internal successors, (219), 145 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:40,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 223 transitions. [2022-03-20 12:13:40,539 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 223 transitions. Word has length 68 [2022-03-20 12:13:40,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:40,539 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 223 transitions. [2022-03-20 12:13:40,539 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:40,539 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 223 transitions. [2022-03-20 12:13:40,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 12:13:40,540 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:40,541 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:40,541 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 12:13:40,541 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:40,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:40,541 INFO L85 PathProgramCache]: Analyzing trace with hash -87978276, now seen corresponding path program 1 times [2022-03-20 12:13:40,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:40,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243590677] [2022-03-20 12:13:40,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:40,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:40,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:40,670 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:13:40,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:40,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243590677] [2022-03-20 12:13:40,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243590677] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:40,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:40,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:40,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898702888] [2022-03-20 12:13:40,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:40,671 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:40,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:40,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:40,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:40,672 INFO L87 Difference]: Start difference. First operand 150 states and 223 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:42,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:43,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:43,260 INFO L93 Difference]: Finished difference Result 390 states and 591 transitions. [2022-03-20 12:13:43,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:43,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 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 68 [2022-03-20 12:13:43,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:43,262 INFO L225 Difference]: With dead ends: 390 [2022-03-20 12:13:43,262 INFO L226 Difference]: Without dead ends: 266 [2022-03-20 12:13:43,263 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:43,264 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 144 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:43,264 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 12:13:43,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-20 12:13:43,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 162. [2022-03-20 12:13:43,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5031847133757963) internal successors, (236), 157 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) [2022-03-20 12:13:43,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 240 transitions. [2022-03-20 12:13:43,273 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 240 transitions. Word has length 68 [2022-03-20 12:13:43,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:43,273 INFO L478 AbstractCegarLoop]: Abstraction has 162 states and 240 transitions. [2022-03-20 12:13:43,274 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:43,274 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 240 transitions. [2022-03-20 12:13:43,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 12:13:43,275 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:43,275 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:43,275 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 12:13:43,275 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:43,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash 154086156, now seen corresponding path program 1 times [2022-03-20 12:13:43,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:43,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192861357] [2022-03-20 12:13:43,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:43,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:43,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:13:43,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:43,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192861357] [2022-03-20 12:13:43,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192861357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:43,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:43,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:43,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236458333] [2022-03-20 12:13:43,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:43,409 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:43,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:43,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:43,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:43,410 INFO L87 Difference]: Start difference. First operand 162 states and 240 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:44,516 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 [] [2022-03-20 12:13:46,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:48,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:50,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:51,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:51,166 INFO L93 Difference]: Finished difference Result 402 states and 607 transitions. [2022-03-20 12:13:51,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:51,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 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 69 [2022-03-20 12:13:51,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:51,169 INFO L225 Difference]: With dead ends: 402 [2022-03-20 12:13:51,169 INFO L226 Difference]: Without dead ends: 266 [2022-03-20 12:13:51,169 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:51,170 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 142 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:51,170 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 321 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 467 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-03-20 12:13:51,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-20 12:13:51,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 163. [2022-03-20 12:13:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.4936708860759493) internal successors, (236), 158 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) [2022-03-20 12:13:51,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 240 transitions. [2022-03-20 12:13:51,178 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 240 transitions. Word has length 69 [2022-03-20 12:13:51,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:51,179 INFO L478 AbstractCegarLoop]: Abstraction has 163 states and 240 transitions. [2022-03-20 12:13:51,179 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:51,179 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 240 transitions. [2022-03-20 12:13:51,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-20 12:13:51,180 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:51,180 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:51,180 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 12:13:51,180 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:51,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:51,181 INFO L85 PathProgramCache]: Analyzing trace with hash -694055968, now seen corresponding path program 1 times [2022-03-20 12:13:51,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:51,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329378782] [2022-03-20 12:13:51,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:51,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:51,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:51,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:13:51,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:51,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329378782] [2022-03-20 12:13:51,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329378782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:51,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:51,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:51,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660602050] [2022-03-20 12:13:51,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:51,344 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:51,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:51,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:51,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:51,346 INFO L87 Difference]: Start difference. First operand 163 states and 240 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:53,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:53,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:53,761 INFO L93 Difference]: Finished difference Result 313 states and 465 transitions. [2022-03-20 12:13:53,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:53,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-20 12:13:53,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:53,763 INFO L225 Difference]: With dead ends: 313 [2022-03-20 12:13:53,763 INFO L226 Difference]: Without dead ends: 176 [2022-03-20 12:13:53,764 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:53,765 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:53,765 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:53,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-03-20 12:13:53,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 163. [2022-03-20 12:13:53,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.4873417721518987) internal successors, (235), 158 states have internal predecessors, (235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 239 transitions. [2022-03-20 12:13:53,771 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 239 transitions. Word has length 70 [2022-03-20 12:13:53,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:53,772 INFO L478 AbstractCegarLoop]: Abstraction has 163 states and 239 transitions. [2022-03-20 12:13:53,772 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:53,772 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 239 transitions. [2022-03-20 12:13:53,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-20 12:13:53,773 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:53,773 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:53,773 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 12:13:53,774 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:53,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:53,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2057309094, now seen corresponding path program 1 times [2022-03-20 12:13:53,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:53,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167378394] [2022-03-20 12:13:53,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:53,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:53,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:53,898 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:13:53,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:53,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167378394] [2022-03-20 12:13:53,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167378394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:53,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:53,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:53,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172945258] [2022-03-20 12:13:53,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:53,900 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:53,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:53,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:53,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:53,900 INFO L87 Difference]: Start difference. First operand 163 states and 239 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:54,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:56,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:59,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:01,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:01,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:01,501 INFO L93 Difference]: Finished difference Result 343 states and 511 transitions. [2022-03-20 12:14:01,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:01,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-20 12:14:01,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:01,503 INFO L225 Difference]: With dead ends: 343 [2022-03-20 12:14:01,503 INFO L226 Difference]: Without dead ends: 206 [2022-03-20 12:14:01,504 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:01,505 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 32 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:01,505 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 510 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 404 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-03-20 12:14:01,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-03-20 12:14:01,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 185. [2022-03-20 12:14:01,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.5055555555555555) internal successors, (271), 180 states have internal predecessors, (271), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:01,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 275 transitions. [2022-03-20 12:14:01,511 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 275 transitions. Word has length 70 [2022-03-20 12:14:01,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:01,512 INFO L478 AbstractCegarLoop]: Abstraction has 185 states and 275 transitions. [2022-03-20 12:14:01,512 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:01,512 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 275 transitions. [2022-03-20 12:14:01,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-20 12:14:01,513 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:01,513 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:01,513 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 12:14:01,514 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:01,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:01,514 INFO L85 PathProgramCache]: Analyzing trace with hash -2112053553, now seen corresponding path program 1 times [2022-03-20 12:14:01,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:01,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179958938] [2022-03-20 12:14:01,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:01,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:01,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:01,637 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:14:01,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:01,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179958938] [2022-03-20 12:14:01,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179958938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:01,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:01,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:01,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171449802] [2022-03-20 12:14:01,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:01,638 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:01,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:01,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:01,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:01,639 INFO L87 Difference]: Start difference. First operand 185 states and 275 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:03,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:03,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:03,990 INFO L93 Difference]: Finished difference Result 347 states and 523 transitions. [2022-03-20 12:14:03,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:03,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 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 71 [2022-03-20 12:14:03,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:03,991 INFO L225 Difference]: With dead ends: 347 [2022-03-20 12:14:03,991 INFO L226 Difference]: Without dead ends: 188 [2022-03-20 12:14:03,992 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:03,993 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 11 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:03,993 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 484 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 331 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:14:03,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-03-20 12:14:03,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 185. [2022-03-20 12:14:03,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.5) internal successors, (270), 180 states have internal predecessors, (270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:03,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 274 transitions. [2022-03-20 12:14:04,000 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 274 transitions. Word has length 71 [2022-03-20 12:14:04,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:04,000 INFO L478 AbstractCegarLoop]: Abstraction has 185 states and 274 transitions. [2022-03-20 12:14:04,000 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:04,000 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 274 transitions. [2022-03-20 12:14:04,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 12:14:04,001 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:04,001 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:04,001 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 12:14:04,002 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:04,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:04,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1909238804, now seen corresponding path program 1 times [2022-03-20 12:14:04,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:04,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790300697] [2022-03-20 12:14:04,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:04,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:04,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:14:04,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:04,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790300697] [2022-03-20 12:14:04,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790300697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:04,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:04,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:04,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246621434] [2022-03-20 12:14:04,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:04,149 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:04,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:04,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:04,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:04,150 INFO L87 Difference]: Start difference. First operand 185 states and 274 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:06,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:06,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:06,569 INFO L93 Difference]: Finished difference Result 365 states and 545 transitions. [2022-03-20 12:14:06,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:06,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-20 12:14:06,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:06,572 INFO L225 Difference]: With dead ends: 365 [2022-03-20 12:14:06,572 INFO L226 Difference]: Without dead ends: 206 [2022-03-20 12:14:06,572 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:06,573 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 37 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:06,573 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 482 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:14:06,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-03-20 12:14:06,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 185. [2022-03-20 12:14:06,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.4944444444444445) internal successors, (269), 180 states have internal predecessors, (269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 273 transitions. [2022-03-20 12:14:06,579 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 273 transitions. Word has length 83 [2022-03-20 12:14:06,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:06,579 INFO L478 AbstractCegarLoop]: Abstraction has 185 states and 273 transitions. [2022-03-20 12:14:06,580 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:06,580 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 273 transitions. [2022-03-20 12:14:06,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:14:06,580 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:06,581 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:06,581 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 12:14:06,581 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:06,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:06,581 INFO L85 PathProgramCache]: Analyzing trace with hash 663350156, now seen corresponding path program 1 times [2022-03-20 12:14:06,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:06,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654520663] [2022-03-20 12:14:06,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:06,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:06,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:06,718 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:14:06,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:06,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654520663] [2022-03-20 12:14:06,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654520663] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:06,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:06,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:06,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029156913] [2022-03-20 12:14:06,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:06,720 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:06,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:06,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:06,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:06,720 INFO L87 Difference]: Start difference. First operand 185 states and 273 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:08,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:09,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:09,277 INFO L93 Difference]: Finished difference Result 447 states and 674 transitions. [2022-03-20 12:14:09,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:09,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 12:14:09,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:09,279 INFO L225 Difference]: With dead ends: 447 [2022-03-20 12:14:09,279 INFO L226 Difference]: Without dead ends: 288 [2022-03-20 12:14:09,280 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:09,281 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 138 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:09,281 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:14:09,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-03-20 12:14:09,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 189. [2022-03-20 12:14:09,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.4945652173913044) internal successors, (275), 184 states have internal predecessors, (275), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:09,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 279 transitions. [2022-03-20 12:14:09,289 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 279 transitions. Word has length 84 [2022-03-20 12:14:09,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:09,291 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 279 transitions. [2022-03-20 12:14:09,291 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:09,292 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 279 transitions. [2022-03-20 12:14:09,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:14:09,292 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:09,292 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:09,293 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 12:14:09,293 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:09,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:09,293 INFO L85 PathProgramCache]: Analyzing trace with hash 957780363, now seen corresponding path program 1 times [2022-03-20 12:14:09,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:09,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177353326] [2022-03-20 12:14:09,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:09,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:09,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:09,417 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:14:09,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:09,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177353326] [2022-03-20 12:14:09,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177353326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:09,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:09,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:09,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099472017] [2022-03-20 12:14:09,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:09,418 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:09,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:09,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:09,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:09,419 INFO L87 Difference]: Start difference. First operand 189 states and 279 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:11,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:11,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:11,806 INFO L93 Difference]: Finished difference Result 370 states and 552 transitions. [2022-03-20 12:14:11,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:11,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 12:14:11,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:11,807 INFO L225 Difference]: With dead ends: 370 [2022-03-20 12:14:11,808 INFO L226 Difference]: Without dead ends: 207 [2022-03-20 12:14:11,808 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:11,809 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 33 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:11,809 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 488 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:14:11,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-03-20 12:14:11,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 189. [2022-03-20 12:14:11,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.4891304347826086) internal successors, (274), 184 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:11,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 278 transitions. [2022-03-20 12:14:11,815 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 278 transitions. Word has length 84 [2022-03-20 12:14:11,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:11,815 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 278 transitions. [2022-03-20 12:14:11,816 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:11,816 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 278 transitions. [2022-03-20 12:14:11,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 12:14:11,817 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:11,817 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:11,817 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 12:14:11,817 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:11,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:11,817 INFO L85 PathProgramCache]: Analyzing trace with hash -958441864, now seen corresponding path program 1 times [2022-03-20 12:14:11,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:11,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181059452] [2022-03-20 12:14:11,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:11,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:11,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:11,964 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:14:11,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:11,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181059452] [2022-03-20 12:14:11,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181059452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:11,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:11,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:11,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258410322] [2022-03-20 12:14:11,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:11,965 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:11,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:11,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:11,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:11,967 INFO L87 Difference]: Start difference. First operand 189 states and 278 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:13,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:14,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:14,478 INFO L93 Difference]: Finished difference Result 381 states and 567 transitions. [2022-03-20 12:14:14,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:14,479 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 85 [2022-03-20 12:14:14,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:14,480 INFO L225 Difference]: With dead ends: 381 [2022-03-20 12:14:14,480 INFO L226 Difference]: Without dead ends: 218 [2022-03-20 12:14:14,481 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:14,482 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 20 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:14,482 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 549 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:14:14,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-03-20 12:14:14,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 205. [2022-03-20 12:14:14,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.49) internal successors, (298), 200 states have internal predecessors, (298), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:14,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 302 transitions. [2022-03-20 12:14:14,490 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 302 transitions. Word has length 85 [2022-03-20 12:14:14,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:14,490 INFO L478 AbstractCegarLoop]: Abstraction has 205 states and 302 transitions. [2022-03-20 12:14:14,490 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:14,490 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 302 transitions. [2022-03-20 12:14:14,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-20 12:14:14,491 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:14,491 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:14,491 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 12:14:14,492 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:14,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:14,492 INFO L85 PathProgramCache]: Analyzing trace with hash -342421357, now seen corresponding path program 1 times [2022-03-20 12:14:14,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:14,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415245429] [2022-03-20 12:14:14,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:14,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:14,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:14,640 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 12:14:14,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:14,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415245429] [2022-03-20 12:14:14,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415245429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:14,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:14,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 12:14:14,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901082381] [2022-03-20 12:14:14,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:14,641 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 12:14:14,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:14,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 12:14:14,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:14,642 INFO L87 Difference]: Start difference. First operand 205 states and 302 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:16,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:17,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:17,082 INFO L93 Difference]: Finished difference Result 393 states and 586 transitions. [2022-03-20 12:14:17,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 12:14:17,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 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 86 [2022-03-20 12:14:17,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:17,084 INFO L225 Difference]: With dead ends: 393 [2022-03-20 12:14:17,084 INFO L226 Difference]: Without dead ends: 214 [2022-03-20 12:14:17,085 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 12:14:17,085 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 2 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:17,085 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 605 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:14:17,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-03-20 12:14:17,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2022-03-20 12:14:17,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.4784688995215312) internal successors, (309), 209 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:17,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 313 transitions. [2022-03-20 12:14:17,092 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 313 transitions. Word has length 86 [2022-03-20 12:14:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:17,092 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 313 transitions. [2022-03-20 12:14:17,092 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:17,092 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 313 transitions. [2022-03-20 12:14:17,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-20 12:14:17,093 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:17,093 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:17,094 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 12:14:17,094 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:17,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:17,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1426792175, now seen corresponding path program 1 times [2022-03-20 12:14:17,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:17,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265175676] [2022-03-20 12:14:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:17,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:17,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:17,238 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:14:17,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:17,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265175676] [2022-03-20 12:14:17,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265175676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:17,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:17,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:17,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179845522] [2022-03-20 12:14:17,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:17,241 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:17,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:17,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:17,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:17,241 INFO L87 Difference]: Start difference. First operand 214 states and 313 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:19,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:19,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:19,755 INFO L93 Difference]: Finished difference Result 510 states and 757 transitions. [2022-03-20 12:14:19,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:19,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-03-20 12:14:19,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:19,757 INFO L225 Difference]: With dead ends: 510 [2022-03-20 12:14:19,757 INFO L226 Difference]: Without dead ends: 322 [2022-03-20 12:14:19,758 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:19,758 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 140 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:19,759 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:14:19,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-03-20 12:14:19,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 214. [2022-03-20 12:14:19,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.4641148325358853) internal successors, (306), 209 states have internal predecessors, (306), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:19,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 310 transitions. [2022-03-20 12:14:19,767 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 310 transitions. Word has length 88 [2022-03-20 12:14:19,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:19,767 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 310 transitions. [2022-03-20 12:14:19,767 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:19,767 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 310 transitions. [2022-03-20 12:14:19,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-20 12:14:19,768 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:19,768 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:19,769 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 12:14:19,769 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:19,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:19,769 INFO L85 PathProgramCache]: Analyzing trace with hash 889591000, now seen corresponding path program 1 times [2022-03-20 12:14:19,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:19,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132746598] [2022-03-20 12:14:19,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:19,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:19,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:19,888 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:14:19,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:19,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132746598] [2022-03-20 12:14:19,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132746598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:19,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:19,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:19,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840981059] [2022-03-20 12:14:19,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:19,889 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:19,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:19,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:19,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:19,890 INFO L87 Difference]: Start difference. First operand 214 states and 310 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:21,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:22,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:22,406 INFO L93 Difference]: Finished difference Result 500 states and 738 transitions. [2022-03-20 12:14:22,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:22,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-03-20 12:14:22,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:22,407 INFO L225 Difference]: With dead ends: 500 [2022-03-20 12:14:22,408 INFO L226 Difference]: Without dead ends: 312 [2022-03-20 12:14:22,408 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:22,409 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 137 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:22,409 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 323 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:14:22,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-03-20 12:14:22,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 214. [2022-03-20 12:14:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.4497607655502391) internal successors, (303), 209 states have internal predecessors, (303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:22,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 307 transitions. [2022-03-20 12:14:22,416 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 307 transitions. Word has length 89 [2022-03-20 12:14:22,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:22,417 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 307 transitions. [2022-03-20 12:14:22,417 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:22,417 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 307 transitions. [2022-03-20 12:14:22,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-20 12:14:22,418 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:22,418 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:22,418 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 12:14:22,418 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:22,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:22,419 INFO L85 PathProgramCache]: Analyzing trace with hash 846482982, now seen corresponding path program 1 times [2022-03-20 12:14:22,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:22,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964651945] [2022-03-20 12:14:22,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:22,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:22,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:22,543 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:14:22,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:22,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964651945] [2022-03-20 12:14:22,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964651945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:22,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:22,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:22,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467294257] [2022-03-20 12:14:22,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:22,544 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:22,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:22,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:22,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:22,545 INFO L87 Difference]: Start difference. First operand 214 states and 307 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:24,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:25,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:25,042 INFO L93 Difference]: Finished difference Result 517 states and 756 transitions. [2022-03-20 12:14:25,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:25,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-03-20 12:14:25,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:25,045 INFO L225 Difference]: With dead ends: 517 [2022-03-20 12:14:25,045 INFO L226 Difference]: Without dead ends: 329 [2022-03-20 12:14:25,046 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:25,046 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 107 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:25,046 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 324 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:14:25,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-03-20 12:14:25,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 257. [2022-03-20 12:14:25,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.5) internal successors, (378), 252 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:25,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 382 transitions. [2022-03-20 12:14:25,055 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 382 transitions. Word has length 92 [2022-03-20 12:14:25,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:25,055 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 382 transitions. [2022-03-20 12:14:25,055 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:25,056 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 382 transitions. [2022-03-20 12:14:25,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-20 12:14:25,056 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:25,057 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:25,057 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 12:14:25,057 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:25,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:25,057 INFO L85 PathProgramCache]: Analyzing trace with hash 500536592, now seen corresponding path program 1 times [2022-03-20 12:14:25,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:25,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059791909] [2022-03-20 12:14:25,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:25,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:25,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:25,213 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:14:25,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:25,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059791909] [2022-03-20 12:14:25,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059791909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:25,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:25,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:25,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948695231] [2022-03-20 12:14:25,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:25,216 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:25,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:25,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:25,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:25,216 INFO L87 Difference]: Start difference. First operand 257 states and 382 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:27,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:27,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:27,716 INFO L93 Difference]: Finished difference Result 584 states and 877 transitions. [2022-03-20 12:14:27,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:27,723 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 93 [2022-03-20 12:14:27,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:27,725 INFO L225 Difference]: With dead ends: 584 [2022-03-20 12:14:27,725 INFO L226 Difference]: Without dead ends: 353 [2022-03-20 12:14:27,726 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:27,728 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 73 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:27,728 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 474 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 524 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:14:27,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-03-20 12:14:27,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 300. [2022-03-20 12:14:27,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 295 states have (on average 1.528813559322034) internal successors, (451), 295 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:27,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 455 transitions. [2022-03-20 12:14:27,738 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 455 transitions. Word has length 93 [2022-03-20 12:14:27,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:27,738 INFO L478 AbstractCegarLoop]: Abstraction has 300 states and 455 transitions. [2022-03-20 12:14:27,738 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:27,738 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 455 transitions. [2022-03-20 12:14:27,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-20 12:14:27,739 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:27,739 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:27,740 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 12:14:27,740 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:27,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:27,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1200203887, now seen corresponding path program 1 times [2022-03-20 12:14:27,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:27,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422166179] [2022-03-20 12:14:27,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:27,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:27,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:27,924 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:14:27,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:27,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422166179] [2022-03-20 12:14:27,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422166179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:27,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:27,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:27,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592674025] [2022-03-20 12:14:27,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:27,925 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:27,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:27,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:27,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:27,926 INFO L87 Difference]: Start difference. First operand 300 states and 455 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:30,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:32,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:34,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:35,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:35,232 INFO L93 Difference]: Finished difference Result 622 states and 948 transitions. [2022-03-20 12:14:35,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:35,233 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 93 [2022-03-20 12:14:35,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:35,234 INFO L225 Difference]: With dead ends: 622 [2022-03-20 12:14:35,234 INFO L226 Difference]: Without dead ends: 348 [2022-03-20 12:14:35,235 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:35,236 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 34 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:35,236 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 578 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 456 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-03-20 12:14:35,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-03-20 12:14:35,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 324. [2022-03-20 12:14:35,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5297805642633229) internal successors, (488), 319 states have internal predecessors, (488), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:35,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 492 transitions. [2022-03-20 12:14:35,245 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 492 transitions. Word has length 93 [2022-03-20 12:14:35,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:35,246 INFO L478 AbstractCegarLoop]: Abstraction has 324 states and 492 transitions. [2022-03-20 12:14:35,246 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:35,246 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 492 transitions. [2022-03-20 12:14:35,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-03-20 12:14:35,247 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:35,247 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:35,247 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 12:14:35,248 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:35,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:35,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1580984372, now seen corresponding path program 1 times [2022-03-20 12:14:35,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:35,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244992830] [2022-03-20 12:14:35,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:35,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:35,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:35,366 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:14:35,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:35,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244992830] [2022-03-20 12:14:35,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244992830] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:35,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:35,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:35,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915547979] [2022-03-20 12:14:35,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:35,367 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:35,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:35,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:35,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:35,368 INFO L87 Difference]: Start difference. First operand 324 states and 492 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:37,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:37,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:37,839 INFO L93 Difference]: Finished difference Result 710 states and 1090 transitions. [2022-03-20 12:14:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:37,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2022-03-20 12:14:37,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:37,841 INFO L225 Difference]: With dead ends: 710 [2022-03-20 12:14:37,841 INFO L226 Difference]: Without dead ends: 412 [2022-03-20 12:14:37,842 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:37,843 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 134 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:37,844 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 339 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:14:37,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-03-20 12:14:37,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 324. [2022-03-20 12:14:37,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5109717868338557) internal successors, (482), 319 states have internal predecessors, (482), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:37,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 486 transitions. [2022-03-20 12:14:37,854 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 486 transitions. Word has length 99 [2022-03-20 12:14:37,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:37,854 INFO L478 AbstractCegarLoop]: Abstraction has 324 states and 486 transitions. [2022-03-20 12:14:37,854 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:37,854 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 486 transitions. [2022-03-20 12:14:37,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-03-20 12:14:37,855 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:37,855 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:37,856 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 12:14:37,856 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:37,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:37,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1116285086, now seen corresponding path program 1 times [2022-03-20 12:14:37,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:37,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670725580] [2022-03-20 12:14:37,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:37,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:37,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:37,984 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:14:37,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:37,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670725580] [2022-03-20 12:14:37,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670725580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:37,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:37,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:37,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980486267] [2022-03-20 12:14:37,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:37,985 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:37,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:37,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:37,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:37,986 INFO L87 Difference]: Start difference. First operand 324 states and 486 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:39,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:41,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:43,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:45,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:46,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:46,295 INFO L93 Difference]: Finished difference Result 663 states and 997 transitions. [2022-03-20 12:14:46,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:46,295 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 106 [2022-03-20 12:14:46,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:46,297 INFO L225 Difference]: With dead ends: 663 [2022-03-20 12:14:46,297 INFO L226 Difference]: Without dead ends: 365 [2022-03-20 12:14:46,298 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:46,298 INFO L913 BasicCegarLoop]: 177 mSDtfsCounter, 90 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:46,299 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 460 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 488 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-03-20 12:14:46,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-03-20 12:14:46,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 324. [2022-03-20 12:14:46,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5078369905956113) internal successors, (481), 319 states have internal predecessors, (481), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:46,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 485 transitions. [2022-03-20 12:14:46,307 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 485 transitions. Word has length 106 [2022-03-20 12:14:46,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:46,307 INFO L478 AbstractCegarLoop]: Abstraction has 324 states and 485 transitions. [2022-03-20 12:14:46,308 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:46,308 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 485 transitions. [2022-03-20 12:14:46,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-03-20 12:14:46,309 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:46,309 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:46,309 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 12:14:46,309 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:46,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:46,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1248063105, now seen corresponding path program 1 times [2022-03-20 12:14:46,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:46,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364861251] [2022-03-20 12:14:46,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:46,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:46,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:46,450 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:14:46,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:46,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364861251] [2022-03-20 12:14:46,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364861251] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:46,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:46,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:46,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386329871] [2022-03-20 12:14:46,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:46,452 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:46,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:46,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:46,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:46,453 INFO L87 Difference]: Start difference. First operand 324 states and 485 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:48,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:48,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:48,844 INFO L93 Difference]: Finished difference Result 634 states and 956 transitions. [2022-03-20 12:14:48,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:48,844 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 106 [2022-03-20 12:14:48,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:48,846 INFO L225 Difference]: With dead ends: 634 [2022-03-20 12:14:48,846 INFO L226 Difference]: Without dead ends: 336 [2022-03-20 12:14:48,847 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:48,848 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 34 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:48,848 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 566 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 417 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:14:48,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-03-20 12:14:48,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 324. [2022-03-20 12:14:48,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5047021943573669) internal successors, (480), 319 states have internal predecessors, (480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:48,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 484 transitions. [2022-03-20 12:14:48,857 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 484 transitions. Word has length 106 [2022-03-20 12:14:48,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:48,857 INFO L478 AbstractCegarLoop]: Abstraction has 324 states and 484 transitions. [2022-03-20 12:14:48,857 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:48,857 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 484 transitions. [2022-03-20 12:14:48,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-03-20 12:14:48,859 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:48,859 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:48,859 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 12:14:48,859 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:48,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:48,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1967795147, now seen corresponding path program 1 times [2022-03-20 12:14:48,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:48,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456246550] [2022-03-20 12:14:48,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:48,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:48,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:48,979 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:14:48,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:48,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456246550] [2022-03-20 12:14:48,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456246550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:48,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:48,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:48,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732928744] [2022-03-20 12:14:48,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:48,980 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:48,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:48,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:48,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:48,981 INFO L87 Difference]: Start difference. First operand 324 states and 484 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:50,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:51,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:51,398 INFO L93 Difference]: Finished difference Result 662 states and 992 transitions. [2022-03-20 12:14:51,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:51,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2022-03-20 12:14:51,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:51,400 INFO L225 Difference]: With dead ends: 662 [2022-03-20 12:14:51,400 INFO L226 Difference]: Without dead ends: 364 [2022-03-20 12:14:51,401 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:51,401 INFO L913 BasicCegarLoop]: 178 mSDtfsCounter, 87 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:51,402 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 462 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:14:51,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-03-20 12:14:51,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 324. [2022-03-20 12:14:51,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5015673981191222) internal successors, (479), 319 states have internal predecessors, (479), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:51,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 483 transitions. [2022-03-20 12:14:51,410 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 483 transitions. Word has length 107 [2022-03-20 12:14:51,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:51,411 INFO L478 AbstractCegarLoop]: Abstraction has 324 states and 483 transitions. [2022-03-20 12:14:51,411 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:51,411 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 483 transitions. [2022-03-20 12:14:51,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-03-20 12:14:51,412 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:51,412 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:51,412 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 12:14:51,412 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:51,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:51,413 INFO L85 PathProgramCache]: Analyzing trace with hash -2046822260, now seen corresponding path program 1 times [2022-03-20 12:14:51,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:51,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73988928] [2022-03-20 12:14:51,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:51,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:51,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:51,564 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:14:51,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:51,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73988928] [2022-03-20 12:14:51,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73988928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:51,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:51,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:51,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095050318] [2022-03-20 12:14:51,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:51,565 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:51,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:51,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:51,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:51,566 INFO L87 Difference]: Start difference. First operand 324 states and 483 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:53,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:53,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:53,929 INFO L93 Difference]: Finished difference Result 633 states and 951 transitions. [2022-03-20 12:14:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:53,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2022-03-20 12:14:53,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:53,932 INFO L225 Difference]: With dead ends: 633 [2022-03-20 12:14:53,932 INFO L226 Difference]: Without dead ends: 335 [2022-03-20 12:14:53,933 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:53,933 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 31 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:53,934 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 564 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 412 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:14:53,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-03-20 12:14:53,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 324. [2022-03-20 12:14:53,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.4984326018808778) internal successors, (478), 319 states have internal predecessors, (478), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:53,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 482 transitions. [2022-03-20 12:14:53,942 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 482 transitions. Word has length 107 [2022-03-20 12:14:53,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:53,942 INFO L478 AbstractCegarLoop]: Abstraction has 324 states and 482 transitions. [2022-03-20 12:14:53,942 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:53,943 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 482 transitions. [2022-03-20 12:14:53,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-20 12:14:53,944 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:53,944 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:53,944 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 12:14:53,944 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:53,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:53,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1322723537, now seen corresponding path program 1 times [2022-03-20 12:14:53,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:53,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759590807] [2022-03-20 12:14:53,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:53,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:54,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:54,069 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:14:54,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:54,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759590807] [2022-03-20 12:14:54,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759590807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:54,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:54,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:54,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038145742] [2022-03-20 12:14:54,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:54,070 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:54,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:54,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:54,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:54,072 INFO L87 Difference]: Start difference. First operand 324 states and 482 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:56,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:56,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:56,496 INFO L93 Difference]: Finished difference Result 662 states and 988 transitions. [2022-03-20 12:14:56,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:56,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-03-20 12:14:56,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:56,498 INFO L225 Difference]: With dead ends: 662 [2022-03-20 12:14:56,498 INFO L226 Difference]: Without dead ends: 364 [2022-03-20 12:14:56,498 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:56,499 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 80 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:56,499 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 474 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:14:56,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-03-20 12:14:56,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 324. [2022-03-20 12:14:56,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.4952978056426331) internal successors, (477), 319 states have internal predecessors, (477), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:56,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 481 transitions. [2022-03-20 12:14:56,508 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 481 transitions. Word has length 115 [2022-03-20 12:14:56,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:56,508 INFO L478 AbstractCegarLoop]: Abstraction has 324 states and 481 transitions. [2022-03-20 12:14:56,508 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:56,508 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 481 transitions. [2022-03-20 12:14:56,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-20 12:14:56,509 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:56,510 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:56,510 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 12:14:56,510 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:56,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:56,510 INFO L85 PathProgramCache]: Analyzing trace with hash 714646674, now seen corresponding path program 1 times [2022-03-20 12:14:56,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:56,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674506916] [2022-03-20 12:14:56,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:56,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:56,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:56,630 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 12:14:56,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:56,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674506916] [2022-03-20 12:14:56,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674506916] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:56,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:56,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:14:56,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137172906] [2022-03-20 12:14:56,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:56,631 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:14:56,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:56,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:14:56,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:14:56,632 INFO L87 Difference]: Start difference. First operand 324 states and 481 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:58,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:58,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:58,956 INFO L93 Difference]: Finished difference Result 899 states and 1357 transitions. [2022-03-20 12:14:58,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:14:58,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-03-20 12:14:58,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:58,959 INFO L225 Difference]: With dead ends: 899 [2022-03-20 12:14:58,959 INFO L226 Difference]: Without dead ends: 601 [2022-03-20 12:14:58,960 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:14:58,961 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 131 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:58,961 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 433 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:14:58,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-03-20 12:14:58,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2022-03-20 12:14:58,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 596 states have (on average 1.5033557046979866) internal successors, (896), 596 states have internal predecessors, (896), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:58,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 900 transitions. [2022-03-20 12:14:58,975 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 900 transitions. Word has length 115 [2022-03-20 12:14:58,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:58,975 INFO L478 AbstractCegarLoop]: Abstraction has 601 states and 900 transitions. [2022-03-20 12:14:58,975 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 900 transitions. [2022-03-20 12:14:58,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-20 12:14:58,977 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:58,977 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:58,977 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 12:14:58,977 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:58,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:58,978 INFO L85 PathProgramCache]: Analyzing trace with hash 468333587, now seen corresponding path program 1 times [2022-03-20 12:14:58,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:58,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533302103] [2022-03-20 12:14:58,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:58,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:59,100 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 12:14:59,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:59,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533302103] [2022-03-20 12:14:59,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533302103] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:59,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:59,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:14:59,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425946095] [2022-03-20 12:14:59,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:59,101 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:14:59,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:59,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:14:59,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:14:59,102 INFO L87 Difference]: Start difference. First operand 601 states and 900 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:01,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:01,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:01,363 INFO L93 Difference]: Finished difference Result 1203 states and 1807 transitions. [2022-03-20 12:15:01,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:15:01,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-03-20 12:15:01,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:01,366 INFO L225 Difference]: With dead ends: 1203 [2022-03-20 12:15:01,366 INFO L226 Difference]: Without dead ends: 628 [2022-03-20 12:15:01,368 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:15:01,368 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 15 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:01,368 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 232 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 12:15:01,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-03-20 12:15:01,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2022-03-20 12:15:01,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 623 states have (on average 1.4943820224719102) internal successors, (931), 623 states have internal predecessors, (931), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 935 transitions. [2022-03-20 12:15:01,382 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 935 transitions. Word has length 115 [2022-03-20 12:15:01,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:01,383 INFO L478 AbstractCegarLoop]: Abstraction has 628 states and 935 transitions. [2022-03-20 12:15:01,383 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:01,383 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 935 transitions. [2022-03-20 12:15:01,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-20 12:15:01,384 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:01,385 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:01,385 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 12:15:01,385 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:01,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:01,385 INFO L85 PathProgramCache]: Analyzing trace with hash 82966804, now seen corresponding path program 1 times [2022-03-20 12:15:01,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:01,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254026389] [2022-03-20 12:15:01,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:01,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:01,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:01,488 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-03-20 12:15:01,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:01,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254026389] [2022-03-20 12:15:01,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254026389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:01,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:01,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:15:01,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639966660] [2022-03-20 12:15:01,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:01,489 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:15:01,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:01,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:15:01,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:15:01,490 INFO L87 Difference]: Start difference. First operand 628 states and 935 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) [2022-03-20 12:15:03,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:03,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:03,761 INFO L93 Difference]: Finished difference Result 1232 states and 1843 transitions. [2022-03-20 12:15:03,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:15:03,761 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 115 [2022-03-20 12:15:03,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:03,764 INFO L225 Difference]: With dead ends: 1232 [2022-03-20 12:15:03,764 INFO L226 Difference]: Without dead ends: 630 [2022-03-20 12:15:03,765 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:15:03,765 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 4 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:03,765 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 390 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:15:03,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-03-20 12:15:03,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2022-03-20 12:15:03,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 625 states have (on average 1.4928) internal successors, (933), 625 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) [2022-03-20 12:15:03,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 937 transitions. [2022-03-20 12:15:03,779 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 937 transitions. Word has length 115 [2022-03-20 12:15:03,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:03,780 INFO L478 AbstractCegarLoop]: Abstraction has 630 states and 937 transitions. [2022-03-20 12:15:03,780 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) [2022-03-20 12:15:03,780 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 937 transitions. [2022-03-20 12:15:03,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 12:15:03,782 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:03,782 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:03,782 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 12:15:03,782 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:03,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:03,783 INFO L85 PathProgramCache]: Analyzing trace with hash -365757816, now seen corresponding path program 1 times [2022-03-20 12:15:03,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:03,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232511252] [2022-03-20 12:15:03,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:03,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:03,909 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:15:03,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:03,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232511252] [2022-03-20 12:15:03,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232511252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:03,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:03,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:15:03,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703369000] [2022-03-20 12:15:03,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:03,910 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:15:03,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:03,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:15:03,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:15:03,911 INFO L87 Difference]: Start difference. First operand 630 states and 937 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:05,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:06,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:06,392 INFO L93 Difference]: Finished difference Result 1524 states and 2287 transitions. [2022-03-20 12:15:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:15:06,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 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 133 [2022-03-20 12:15:06,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:06,396 INFO L225 Difference]: With dead ends: 1524 [2022-03-20 12:15:06,396 INFO L226 Difference]: Without dead ends: 922 [2022-03-20 12:15:06,398 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:15:06,398 INFO L913 BasicCegarLoop]: 373 mSDtfsCounter, 135 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:06,399 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 568 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:15:06,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2022-03-20 12:15:06,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2022-03-20 12:15:06,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 917 states have (on average 1.4961832061068703) internal successors, (1372), 917 states have internal predecessors, (1372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:06,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1376 transitions. [2022-03-20 12:15:06,417 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1376 transitions. Word has length 133 [2022-03-20 12:15:06,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:06,417 INFO L478 AbstractCegarLoop]: Abstraction has 922 states and 1376 transitions. [2022-03-20 12:15:06,417 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:06,418 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1376 transitions. [2022-03-20 12:15:06,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-20 12:15:06,420 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:06,420 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:06,420 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 12:15:06,420 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:06,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:06,421 INFO L85 PathProgramCache]: Analyzing trace with hash 69449236, now seen corresponding path program 1 times [2022-03-20 12:15:06,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:06,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120449284] [2022-03-20 12:15:06,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:06,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:06,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:15:06,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:06,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120449284] [2022-03-20 12:15:06,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120449284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:06,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:06,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:06,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646599898] [2022-03-20 12:15:06,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:06,563 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:06,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:06,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:06,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:06,564 INFO L87 Difference]: Start difference. First operand 922 states and 1376 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:08,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:09,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:09,104 INFO L93 Difference]: Finished difference Result 1967 states and 2949 transitions. [2022-03-20 12:15:09,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:09,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-20 12:15:09,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:09,109 INFO L225 Difference]: With dead ends: 1967 [2022-03-20 12:15:09,109 INFO L226 Difference]: Without dead ends: 1073 [2022-03-20 12:15:09,111 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:09,111 INFO L913 BasicCegarLoop]: 270 mSDtfsCounter, 79 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:09,112 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 645 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 613 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:15:09,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-03-20 12:15:09,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 966. [2022-03-20 12:15:09,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 961 states have (on average 1.5171696149843912) internal successors, (1458), 961 states have internal predecessors, (1458), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:09,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1462 transitions. [2022-03-20 12:15:09,134 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1462 transitions. Word has length 173 [2022-03-20 12:15:09,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:09,134 INFO L478 AbstractCegarLoop]: Abstraction has 966 states and 1462 transitions. [2022-03-20 12:15:09,135 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:09,135 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1462 transitions. [2022-03-20 12:15:09,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-20 12:15:09,137 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:09,137 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2022-03-20 12:15:09,138 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 12:15:09,138 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:09,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:09,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1139987719, now seen corresponding path program 1 times [2022-03-20 12:15:09,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:09,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135414978] [2022-03-20 12:15:09,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:09,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:09,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:09,291 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:15:09,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:09,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135414978] [2022-03-20 12:15:09,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135414978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:09,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:09,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:09,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857661456] [2022-03-20 12:15:09,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:09,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:09,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:09,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:09,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:09,293 INFO L87 Difference]: Start difference. First operand 966 states and 1462 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:12,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:14,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:16,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:16,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:16,585 INFO L93 Difference]: Finished difference Result 2093 states and 3146 transitions. [2022-03-20 12:15:16,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:16,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 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 174 [2022-03-20 12:15:16,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:16,588 INFO L225 Difference]: With dead ends: 2093 [2022-03-20 12:15:16,588 INFO L226 Difference]: Without dead ends: 1155 [2022-03-20 12:15:16,590 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:16,590 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 103 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 58 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:16,591 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 339 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 452 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-03-20 12:15:16,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-03-20 12:15:16,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 968. [2022-03-20 12:15:16,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.509865005192108) internal successors, (1454), 963 states have internal predecessors, (1454), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:16,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1458 transitions. [2022-03-20 12:15:16,612 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1458 transitions. Word has length 174 [2022-03-20 12:15:16,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:16,612 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1458 transitions. [2022-03-20 12:15:16,612 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:16,612 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1458 transitions. [2022-03-20 12:15:16,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-03-20 12:15:16,614 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:16,615 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:16,615 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 12:15:16,615 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:16,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:16,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1480882690, now seen corresponding path program 1 times [2022-03-20 12:15:16,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:16,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271216800] [2022-03-20 12:15:16,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:16,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:16,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:15:16,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:16,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271216800] [2022-03-20 12:15:16,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271216800] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:16,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:16,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:16,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907526660] [2022-03-20 12:15:16,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:16,754 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:16,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:16,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:16,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:16,755 INFO L87 Difference]: Start difference. First operand 968 states and 1458 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:18,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:19,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:19,249 INFO L93 Difference]: Finished difference Result 2003 states and 3009 transitions. [2022-03-20 12:15:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:19,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 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 186 [2022-03-20 12:15:19,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:19,252 INFO L225 Difference]: With dead ends: 2003 [2022-03-20 12:15:19,252 INFO L226 Difference]: Without dead ends: 1063 [2022-03-20 12:15:19,253 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:19,254 INFO L913 BasicCegarLoop]: 266 mSDtfsCounter, 96 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:19,254 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 637 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 591 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:15:19,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2022-03-20 12:15:19,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 968. [2022-03-20 12:15:19,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.5077881619937694) internal successors, (1452), 963 states have internal predecessors, (1452), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:19,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1456 transitions. [2022-03-20 12:15:19,274 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1456 transitions. Word has length 186 [2022-03-20 12:15:19,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:19,275 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1456 transitions. [2022-03-20 12:15:19,275 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:19,275 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1456 transitions. [2022-03-20 12:15:19,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-03-20 12:15:19,277 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:19,277 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:19,277 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 12:15:19,278 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:19,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:19,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1158446969, now seen corresponding path program 1 times [2022-03-20 12:15:19,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:19,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729791046] [2022-03-20 12:15:19,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:19,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:19,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:19,440 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:15:19,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:19,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729791046] [2022-03-20 12:15:19,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729791046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:19,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:19,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:19,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908733515] [2022-03-20 12:15:19,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:19,442 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:19,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:19,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:19,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:19,442 INFO L87 Difference]: Start difference. First operand 968 states and 1456 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 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) [2022-03-20 12:15:21,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:21,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:21,915 INFO L93 Difference]: Finished difference Result 2092 states and 3127 transitions. [2022-03-20 12:15:21,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:21,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 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 187 [2022-03-20 12:15:21,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:21,920 INFO L225 Difference]: With dead ends: 2092 [2022-03-20 12:15:21,920 INFO L226 Difference]: Without dead ends: 1152 [2022-03-20 12:15:21,922 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:21,922 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 124 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:21,922 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 341 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:15:21,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-03-20 12:15:21,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 968. [2022-03-20 12:15:21,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.502596053997923) internal successors, (1447), 963 states have internal predecessors, (1447), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:21,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1451 transitions. [2022-03-20 12:15:21,941 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1451 transitions. Word has length 187 [2022-03-20 12:15:21,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:21,941 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1451 transitions. [2022-03-20 12:15:21,941 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 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) [2022-03-20 12:15:21,942 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1451 transitions. [2022-03-20 12:15:21,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-20 12:15:21,944 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:21,944 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 12:15:21,944 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 12:15:21,944 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:21,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:21,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1133184435, now seen corresponding path program 1 times [2022-03-20 12:15:21,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:21,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751307282] [2022-03-20 12:15:21,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:21,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:22,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:22,082 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:15:22,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:22,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751307282] [2022-03-20 12:15:22,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751307282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:22,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:22,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:22,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556767323] [2022-03-20 12:15:22,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:22,084 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:22,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:22,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:22,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:22,084 INFO L87 Difference]: Start difference. First operand 968 states and 1451 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 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) [2022-03-20 12:15:24,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:26,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:28,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:28,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:28,954 INFO L93 Difference]: Finished difference Result 2092 states and 3117 transitions. [2022-03-20 12:15:28,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:28,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 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 195 [2022-03-20 12:15:28,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:28,958 INFO L225 Difference]: With dead ends: 2092 [2022-03-20 12:15:28,958 INFO L226 Difference]: Without dead ends: 1152 [2022-03-20 12:15:28,959 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:28,960 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 119 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 53 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:28,960 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 388 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 475 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-03-20 12:15:28,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-03-20 12:15:28,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 968. [2022-03-20 12:15:28,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4911734164070614) internal successors, (1436), 963 states have internal predecessors, (1436), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:28,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1440 transitions. [2022-03-20 12:15:28,980 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1440 transitions. Word has length 195 [2022-03-20 12:15:28,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:28,980 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1440 transitions. [2022-03-20 12:15:28,981 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 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) [2022-03-20 12:15:28,981 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1440 transitions. [2022-03-20 12:15:28,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-20 12:15:28,983 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:28,983 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:28,983 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 12:15:28,983 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:28,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:28,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1208187469, now seen corresponding path program 1 times [2022-03-20 12:15:28,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:28,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041691667] [2022-03-20 12:15:28,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:28,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:29,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:15:29,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:29,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041691667] [2022-03-20 12:15:29,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041691667] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:29,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:29,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:29,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755655140] [2022-03-20 12:15:29,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:29,147 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:29,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:29,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:29,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:29,148 INFO L87 Difference]: Start difference. First operand 968 states and 1440 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 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) [2022-03-20 12:15:31,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:31,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:31,670 INFO L93 Difference]: Finished difference Result 2001 states and 2971 transitions. [2022-03-20 12:15:31,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:31,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 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 195 [2022-03-20 12:15:31,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:31,674 INFO L225 Difference]: With dead ends: 2001 [2022-03-20 12:15:31,674 INFO L226 Difference]: Without dead ends: 1061 [2022-03-20 12:15:31,675 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:31,676 INFO L913 BasicCegarLoop]: 263 mSDtfsCounter, 85 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:31,676 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 631 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 584 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:15:31,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-03-20 12:15:31,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 968. [2022-03-20 12:15:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4890965732087227) internal successors, (1434), 963 states have internal predecessors, (1434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:31,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1438 transitions. [2022-03-20 12:15:31,695 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1438 transitions. Word has length 195 [2022-03-20 12:15:31,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:31,695 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1438 transitions. [2022-03-20 12:15:31,695 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 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) [2022-03-20 12:15:31,695 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1438 transitions. [2022-03-20 12:15:31,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-20 12:15:31,697 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:31,697 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:31,698 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 12:15:31,698 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:31,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:31,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1114482165, now seen corresponding path program 1 times [2022-03-20 12:15:31,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:31,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814797694] [2022-03-20 12:15:31,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:31,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:31,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:31,824 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:15:31,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:31,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814797694] [2022-03-20 12:15:31,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814797694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:31,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:31,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:31,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571129438] [2022-03-20 12:15:31,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:31,825 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:31,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:31,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:31,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:31,826 INFO L87 Difference]: Start difference. First operand 968 states and 1438 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:33,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:34,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:34,262 INFO L93 Difference]: Finished difference Result 2092 states and 3091 transitions. [2022-03-20 12:15:34,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:34,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-03-20 12:15:34,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:34,266 INFO L225 Difference]: With dead ends: 2092 [2022-03-20 12:15:34,266 INFO L226 Difference]: Without dead ends: 1152 [2022-03-20 12:15:34,267 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:34,267 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 118 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:34,268 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 341 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:15:34,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-03-20 12:15:34,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 968. [2022-03-20 12:15:34,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4776739356178608) internal successors, (1423), 963 states have internal predecessors, (1423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:34,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1427 transitions. [2022-03-20 12:15:34,287 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1427 transitions. Word has length 196 [2022-03-20 12:15:34,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:34,288 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1427 transitions. [2022-03-20 12:15:34,288 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:34,288 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1427 transitions. [2022-03-20 12:15:34,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-20 12:15:34,290 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:34,290 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:34,290 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 12:15:34,290 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:34,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:34,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1439704426, now seen corresponding path program 1 times [2022-03-20 12:15:34,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:34,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474868016] [2022-03-20 12:15:34,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:34,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:34,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:34,483 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:15:34,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:34,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474868016] [2022-03-20 12:15:34,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474868016] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:34,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:34,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:34,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406836509] [2022-03-20 12:15:34,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:34,486 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:34,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:34,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:34,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:34,486 INFO L87 Difference]: Start difference. First operand 968 states and 1427 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:36,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:36,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:36,963 INFO L93 Difference]: Finished difference Result 1983 states and 2921 transitions. [2022-03-20 12:15:36,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:36,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-03-20 12:15:36,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:36,966 INFO L225 Difference]: With dead ends: 1983 [2022-03-20 12:15:36,966 INFO L226 Difference]: Without dead ends: 1043 [2022-03-20 12:15:36,967 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:36,968 INFO L913 BasicCegarLoop]: 255 mSDtfsCounter, 74 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:36,968 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 615 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 558 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:15:36,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-03-20 12:15:36,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 968. [2022-03-20 12:15:36,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4755970924195223) internal successors, (1421), 963 states have internal predecessors, (1421), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:36,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1425 transitions. [2022-03-20 12:15:36,986 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1425 transitions. Word has length 196 [2022-03-20 12:15:36,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:36,987 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1425 transitions. [2022-03-20 12:15:36,987 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:36,987 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1425 transitions. [2022-03-20 12:15:36,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-03-20 12:15:36,989 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:36,989 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:36,989 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 12:15:36,989 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:36,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:36,990 INFO L85 PathProgramCache]: Analyzing trace with hash 618915137, now seen corresponding path program 1 times [2022-03-20 12:15:36,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:36,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825281769] [2022-03-20 12:15:36,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:36,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:37,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:37,117 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:15:37,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:37,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825281769] [2022-03-20 12:15:37,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825281769] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:37,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:37,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:37,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767369580] [2022-03-20 12:15:37,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:37,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:37,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:37,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:37,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:37,119 INFO L87 Difference]: Start difference. First operand 968 states and 1425 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:39,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:41,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:43,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:44,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:44,189 INFO L93 Difference]: Finished difference Result 1983 states and 2917 transitions. [2022-03-20 12:15:44,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:44,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 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 198 [2022-03-20 12:15:44,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:44,192 INFO L225 Difference]: With dead ends: 1983 [2022-03-20 12:15:44,192 INFO L226 Difference]: Without dead ends: 1043 [2022-03-20 12:15:44,209 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:44,209 INFO L913 BasicCegarLoop]: 254 mSDtfsCounter, 70 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:44,209 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 613 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 558 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-03-20 12:15:44,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-03-20 12:15:44,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 968. [2022-03-20 12:15:44,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4735202492211839) internal successors, (1419), 963 states have internal predecessors, (1419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:44,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1423 transitions. [2022-03-20 12:15:44,226 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1423 transitions. Word has length 198 [2022-03-20 12:15:44,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:44,226 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1423 transitions. [2022-03-20 12:15:44,226 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:44,226 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1423 transitions. [2022-03-20 12:15:44,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-03-20 12:15:44,228 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:44,228 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:44,229 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 12:15:44,229 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:44,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:44,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1838021633, now seen corresponding path program 1 times [2022-03-20 12:15:44,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:44,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541583436] [2022-03-20 12:15:44,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:44,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:44,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:44,359 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:15:44,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:44,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541583436] [2022-03-20 12:15:44,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541583436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:44,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:44,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:44,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815013905] [2022-03-20 12:15:44,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:44,360 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:44,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:44,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:44,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:44,361 INFO L87 Difference]: Start difference. First operand 968 states and 1423 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:45,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:47,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:49,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:51,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:52,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:52,134 INFO L93 Difference]: Finished difference Result 2092 states and 3061 transitions. [2022-03-20 12:15:52,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:52,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 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 199 [2022-03-20 12:15:52,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:52,137 INFO L225 Difference]: With dead ends: 2092 [2022-03-20 12:15:52,137 INFO L226 Difference]: Without dead ends: 1152 [2022-03-20 12:15:52,138 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:52,139 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 111 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 57 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:52,139 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 341 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 450 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-03-20 12:15:52,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-03-20 12:15:52,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 968. [2022-03-20 12:15:52,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4652128764278296) internal successors, (1411), 963 states have internal predecessors, (1411), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:52,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1415 transitions. [2022-03-20 12:15:52,158 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1415 transitions. Word has length 199 [2022-03-20 12:15:52,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:52,159 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1415 transitions. [2022-03-20 12:15:52,159 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:52,159 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1415 transitions. [2022-03-20 12:15:52,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-03-20 12:15:52,161 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:52,161 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:52,161 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 12:15:52,161 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:52,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:52,162 INFO L85 PathProgramCache]: Analyzing trace with hash -2074435444, now seen corresponding path program 1 times [2022-03-20 12:15:52,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:52,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896152828] [2022-03-20 12:15:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:52,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:52,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:52,289 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:15:52,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:52,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896152828] [2022-03-20 12:15:52,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896152828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:52,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:52,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:52,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108534621] [2022-03-20 12:15:52,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:52,290 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:52,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:52,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:52,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:52,291 INFO L87 Difference]: Start difference. First operand 968 states and 1415 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:54,178 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:56,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:57,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:59,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:00,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:00,163 INFO L93 Difference]: Finished difference Result 2221 states and 3252 transitions. [2022-03-20 12:16:00,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:00,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 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 [2022-03-20 12:16:00,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:00,166 INFO L225 Difference]: With dead ends: 2221 [2022-03-20 12:16:00,166 INFO L226 Difference]: Without dead ends: 1281 [2022-03-20 12:16:00,167 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:00,168 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 109 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:00,168 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 341 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 454 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-03-20 12:16:00,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-03-20 12:16:00,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1058. [2022-03-20 12:16:00,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4605887939221271) internal successors, (1538), 1053 states have internal predecessors, (1538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:00,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1542 transitions. [2022-03-20 12:16:00,188 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1542 transitions. Word has length 200 [2022-03-20 12:16:00,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:00,189 INFO L478 AbstractCegarLoop]: Abstraction has 1058 states and 1542 transitions. [2022-03-20 12:16:00,189 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:00,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1542 transitions. [2022-03-20 12:16:00,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-03-20 12:16:00,191 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:00,191 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:00,191 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 12:16:00,191 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:00,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:00,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1536764168, now seen corresponding path program 1 times [2022-03-20 12:16:00,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:00,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116948422] [2022-03-20 12:16:00,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:00,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:00,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:00,328 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:16:00,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:00,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116948422] [2022-03-20 12:16:00,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116948422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:00,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:00,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:00,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190359353] [2022-03-20 12:16:00,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:00,329 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:00,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:00,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:00,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:00,330 INFO L87 Difference]: Start difference. First operand 1058 states and 1542 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:03,035 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 [] [2022-03-20 12:16:05,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:07,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:07,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:07,539 INFO L93 Difference]: Finished difference Result 2147 states and 3125 transitions. [2022-03-20 12:16:07,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:07,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 [2022-03-20 12:16:07,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:07,542 INFO L225 Difference]: With dead ends: 2147 [2022-03-20 12:16:07,542 INFO L226 Difference]: Without dead ends: 1117 [2022-03-20 12:16:07,543 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:07,544 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 60 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:07,544 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 599 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 520 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-03-20 12:16:07,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2022-03-20 12:16:07,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1058. [2022-03-20 12:16:07,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4586894586894588) internal successors, (1536), 1053 states have internal predecessors, (1536), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:07,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1540 transitions. [2022-03-20 12:16:07,560 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1540 transitions. Word has length 201 [2022-03-20 12:16:07,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:07,560 INFO L478 AbstractCegarLoop]: Abstraction has 1058 states and 1540 transitions. [2022-03-20 12:16:07,560 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:07,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1540 transitions. [2022-03-20 12:16:07,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-03-20 12:16:07,562 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:07,563 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:07,563 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 12:16:07,563 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:07,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:07,563 INFO L85 PathProgramCache]: Analyzing trace with hash 671548300, now seen corresponding path program 1 times [2022-03-20 12:16:07,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:07,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893786463] [2022-03-20 12:16:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:07,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:07,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:07,715 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:16:07,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:07,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893786463] [2022-03-20 12:16:07,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893786463] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:07,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:07,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:07,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008399638] [2022-03-20 12:16:07,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:07,717 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:07,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:07,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:07,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:07,718 INFO L87 Difference]: Start difference. First operand 1058 states and 1540 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:09,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:10,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:10,141 INFO L93 Difference]: Finished difference Result 2143 states and 3117 transitions. [2022-03-20 12:16:10,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:10,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 [2022-03-20 12:16:10,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:10,147 INFO L225 Difference]: With dead ends: 2143 [2022-03-20 12:16:10,147 INFO L226 Difference]: Without dead ends: 1113 [2022-03-20 12:16:10,149 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:10,149 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 53 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:10,150 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 595 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:10,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2022-03-20 12:16:10,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1058. [2022-03-20 12:16:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4567901234567902) internal successors, (1534), 1053 states have internal predecessors, (1534), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:10,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1538 transitions. [2022-03-20 12:16:10,173 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1538 transitions. Word has length 201 [2022-03-20 12:16:10,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:10,174 INFO L478 AbstractCegarLoop]: Abstraction has 1058 states and 1538 transitions. [2022-03-20 12:16:10,174 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:10,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1538 transitions. [2022-03-20 12:16:10,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-20 12:16:10,177 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:10,177 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:10,177 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 12:16:10,177 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:10,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:10,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1001994762, now seen corresponding path program 1 times [2022-03-20 12:16:10,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:10,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931098657] [2022-03-20 12:16:10,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:10,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:10,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:16:10,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:10,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931098657] [2022-03-20 12:16:10,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931098657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:10,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:10,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:10,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383780277] [2022-03-20 12:16:10,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:10,310 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:10,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:10,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:10,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:10,310 INFO L87 Difference]: Start difference. First operand 1058 states and 1538 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:12,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:12,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:12,757 INFO L93 Difference]: Finished difference Result 2272 states and 3291 transitions. [2022-03-20 12:16:12,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:12,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 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 202 [2022-03-20 12:16:12,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:12,761 INFO L225 Difference]: With dead ends: 2272 [2022-03-20 12:16:12,761 INFO L226 Difference]: Without dead ends: 1242 [2022-03-20 12:16:12,762 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:12,763 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 112 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:12,763 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 343 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 450 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:12,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2022-03-20 12:16:12,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1058. [2022-03-20 12:16:12,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.446343779677113) internal successors, (1523), 1053 states have internal predecessors, (1523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:12,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1527 transitions. [2022-03-20 12:16:12,783 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1527 transitions. Word has length 202 [2022-03-20 12:16:12,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:12,783 INFO L478 AbstractCegarLoop]: Abstraction has 1058 states and 1527 transitions. [2022-03-20 12:16:12,784 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:12,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1527 transitions. [2022-03-20 12:16:12,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-03-20 12:16:12,803 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:12,803 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:12,803 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 12:16:12,804 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:12,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:12,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1796130157, now seen corresponding path program 1 times [2022-03-20 12:16:12,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:12,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839216155] [2022-03-20 12:16:12,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:12,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:12,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:16:12,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:12,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839216155] [2022-03-20 12:16:12,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839216155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:12,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:12,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:12,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504091621] [2022-03-20 12:16:12,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:12,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:12,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:12,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:12,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:12,948 INFO L87 Difference]: Start difference. First operand 1058 states and 1527 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 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) [2022-03-20 12:16:14,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:15,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:15,367 INFO L93 Difference]: Finished difference Result 2131 states and 3075 transitions. [2022-03-20 12:16:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:15,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 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 203 [2022-03-20 12:16:15,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:15,380 INFO L225 Difference]: With dead ends: 2131 [2022-03-20 12:16:15,380 INFO L226 Difference]: Without dead ends: 1101 [2022-03-20 12:16:15,382 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:15,383 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 47 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:15,383 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 587 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:15,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2022-03-20 12:16:15,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1058. [2022-03-20 12:16:15,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4444444444444444) internal successors, (1521), 1053 states have internal predecessors, (1521), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:15,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1525 transitions. [2022-03-20 12:16:15,403 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1525 transitions. Word has length 203 [2022-03-20 12:16:15,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:15,403 INFO L478 AbstractCegarLoop]: Abstraction has 1058 states and 1525 transitions. [2022-03-20 12:16:15,403 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 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) [2022-03-20 12:16:15,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1525 transitions. [2022-03-20 12:16:15,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-03-20 12:16:15,406 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:15,406 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:15,406 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 12:16:15,406 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:15,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:15,406 INFO L85 PathProgramCache]: Analyzing trace with hash 2134209051, now seen corresponding path program 1 times [2022-03-20 12:16:15,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:15,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315474148] [2022-03-20 12:16:15,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:15,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:15,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:15,583 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:16:15,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:15,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315474148] [2022-03-20 12:16:15,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315474148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:15,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:15,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:15,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235322308] [2022-03-20 12:16:15,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:15,585 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:15,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:15,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:15,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:15,585 INFO L87 Difference]: Start difference. First operand 1058 states and 1525 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:17,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:18,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:18,036 INFO L93 Difference]: Finished difference Result 2401 states and 3466 transitions. [2022-03-20 12:16:18,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:18,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 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 204 [2022-03-20 12:16:18,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:18,040 INFO L225 Difference]: With dead ends: 2401 [2022-03-20 12:16:18,040 INFO L226 Difference]: Without dead ends: 1371 [2022-03-20 12:16:18,041 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:18,041 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 105 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:18,041 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 341 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 450 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:18,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2022-03-20 12:16:18,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1157. [2022-03-20 12:16:18,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4409722222222223) internal successors, (1660), 1152 states have internal predecessors, (1660), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:18,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1664 transitions. [2022-03-20 12:16:18,076 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1664 transitions. Word has length 204 [2022-03-20 12:16:18,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:18,078 INFO L478 AbstractCegarLoop]: Abstraction has 1157 states and 1664 transitions. [2022-03-20 12:16:18,078 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:18,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1664 transitions. [2022-03-20 12:16:18,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-03-20 12:16:18,080 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:18,081 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:18,081 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 12:16:18,081 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:18,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:18,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1181185262, now seen corresponding path program 1 times [2022-03-20 12:16:18,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:18,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579202492] [2022-03-20 12:16:18,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:18,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:18,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:18,223 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:16:18,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:18,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579202492] [2022-03-20 12:16:18,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579202492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:18,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:18,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:18,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383724184] [2022-03-20 12:16:18,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:18,224 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:18,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:18,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:18,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:18,226 INFO L87 Difference]: Start difference. First operand 1157 states and 1664 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:20,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:20,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:20,625 INFO L93 Difference]: Finished difference Result 2321 states and 3339 transitions. [2022-03-20 12:16:20,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:20,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2022-03-20 12:16:20,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:20,628 INFO L225 Difference]: With dead ends: 2321 [2022-03-20 12:16:20,628 INFO L226 Difference]: Without dead ends: 1192 [2022-03-20 12:16:20,630 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:20,630 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 40 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:20,631 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 577 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:20,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2022-03-20 12:16:20,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1157. [2022-03-20 12:16:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4392361111111112) internal successors, (1658), 1152 states have internal predecessors, (1658), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:20,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1662 transitions. [2022-03-20 12:16:20,658 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1662 transitions. Word has length 205 [2022-03-20 12:16:20,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:20,658 INFO L478 AbstractCegarLoop]: Abstraction has 1157 states and 1662 transitions. [2022-03-20 12:16:20,658 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:20,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1662 transitions. [2022-03-20 12:16:20,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-03-20 12:16:20,661 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:20,661 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:20,661 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 12:16:20,661 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:20,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:20,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1593326650, now seen corresponding path program 1 times [2022-03-20 12:16:20,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:20,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543252060] [2022-03-20 12:16:20,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:20,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:20,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:16:20,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:20,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543252060] [2022-03-20 12:16:20,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543252060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:20,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:20,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:20,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773828545] [2022-03-20 12:16:20,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:20,836 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:20,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:20,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:20,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:20,836 INFO L87 Difference]: Start difference. First operand 1157 states and 1662 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:22,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:23,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:23,247 INFO L93 Difference]: Finished difference Result 2321 states and 3335 transitions. [2022-03-20 12:16:23,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:23,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2022-03-20 12:16:23,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:23,250 INFO L225 Difference]: With dead ends: 2321 [2022-03-20 12:16:23,250 INFO L226 Difference]: Without dead ends: 1192 [2022-03-20 12:16:23,251 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:23,252 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 38 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:23,252 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 575 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:23,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2022-03-20 12:16:23,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1157. [2022-03-20 12:16:23,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4375) internal successors, (1656), 1152 states have internal predecessors, (1656), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:23,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1660 transitions. [2022-03-20 12:16:23,273 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1660 transitions. Word has length 205 [2022-03-20 12:16:23,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:23,273 INFO L478 AbstractCegarLoop]: Abstraction has 1157 states and 1660 transitions. [2022-03-20 12:16:23,273 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:23,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1660 transitions. [2022-03-20 12:16:23,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-03-20 12:16:23,275 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:23,275 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:23,275 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 12:16:23,275 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:23,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:23,275 INFO L85 PathProgramCache]: Analyzing trace with hash -2090111197, now seen corresponding path program 1 times [2022-03-20 12:16:23,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:23,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927644014] [2022-03-20 12:16:23,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:23,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:23,424 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:16:23,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:23,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927644014] [2022-03-20 12:16:23,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927644014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:23,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:23,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:23,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331822368] [2022-03-20 12:16:23,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:23,426 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:23,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:23,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:23,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:23,426 INFO L87 Difference]: Start difference. First operand 1157 states and 1660 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:25,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:25,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:25,832 INFO L93 Difference]: Finished difference Result 2317 states and 3327 transitions. [2022-03-20 12:16:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:25,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 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 206 [2022-03-20 12:16:25,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:25,835 INFO L225 Difference]: With dead ends: 2317 [2022-03-20 12:16:25,835 INFO L226 Difference]: Without dead ends: 1188 [2022-03-20 12:16:25,837 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:25,837 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 35 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:25,838 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 571 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:25,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2022-03-20 12:16:25,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1157. [2022-03-20 12:16:25,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4357638888888888) internal successors, (1654), 1152 states have internal predecessors, (1654), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1658 transitions. [2022-03-20 12:16:25,856 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1658 transitions. Word has length 206 [2022-03-20 12:16:25,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:25,856 INFO L478 AbstractCegarLoop]: Abstraction has 1157 states and 1658 transitions. [2022-03-20 12:16:25,856 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:25,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1658 transitions. [2022-03-20 12:16:25,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-03-20 12:16:25,858 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:25,858 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:25,858 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 12:16:25,858 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:25,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:25,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1497788414, now seen corresponding path program 1 times [2022-03-20 12:16:25,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:25,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539204693] [2022-03-20 12:16:25,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:25,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:26,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:26,013 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:16:26,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:26,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539204693] [2022-03-20 12:16:26,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539204693] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:26,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:26,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:26,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437642377] [2022-03-20 12:16:26,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:26,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:26,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:26,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:26,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:26,015 INFO L87 Difference]: Start difference. First operand 1157 states and 1658 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:28,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:30,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:32,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:33,238 INFO L93 Difference]: Finished difference Result 2317 states and 3323 transitions. [2022-03-20 12:16:33,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:33,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 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 207 [2022-03-20 12:16:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:33,241 INFO L225 Difference]: With dead ends: 2317 [2022-03-20 12:16:33,241 INFO L226 Difference]: Without dead ends: 1188 [2022-03-20 12:16:33,242 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:33,243 INFO L913 BasicCegarLoop]: 232 mSDtfsCounter, 33 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:33,243 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 569 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-03-20 12:16:33,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2022-03-20 12:16:33,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1157. [2022-03-20 12:16:33,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4340277777777777) internal successors, (1652), 1152 states have internal predecessors, (1652), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:33,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1656 transitions. [2022-03-20 12:16:33,263 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1656 transitions. Word has length 207 [2022-03-20 12:16:33,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:33,263 INFO L478 AbstractCegarLoop]: Abstraction has 1157 states and 1656 transitions. [2022-03-20 12:16:33,263 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:33,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1656 transitions. [2022-03-20 12:16:33,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-03-20 12:16:33,265 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:33,265 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:33,265 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 12:16:33,266 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:33,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:33,266 INFO L85 PathProgramCache]: Analyzing trace with hash -146447132, now seen corresponding path program 1 times [2022-03-20 12:16:33,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:33,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683149747] [2022-03-20 12:16:33,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:33,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:33,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:33,437 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 12:16:33,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:33,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683149747] [2022-03-20 12:16:33,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683149747] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:33,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:33,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:33,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144882418] [2022-03-20 12:16:33,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:33,439 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:33,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:33,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:33,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:33,440 INFO L87 Difference]: Start difference. First operand 1157 states and 1656 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:35,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:35,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:35,910 INFO L93 Difference]: Finished difference Result 2470 states and 3527 transitions. [2022-03-20 12:16:35,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:35,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 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 208 [2022-03-20 12:16:35,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:35,913 INFO L225 Difference]: With dead ends: 2470 [2022-03-20 12:16:35,913 INFO L226 Difference]: Without dead ends: 1341 [2022-03-20 12:16:35,915 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:35,915 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 100 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:35,915 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 341 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:35,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2022-03-20 12:16:35,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1157. [2022-03-20 12:16:35,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4270833333333333) internal successors, (1644), 1152 states have internal predecessors, (1644), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:35,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1648 transitions. [2022-03-20 12:16:35,937 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1648 transitions. Word has length 208 [2022-03-20 12:16:35,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:35,937 INFO L478 AbstractCegarLoop]: Abstraction has 1157 states and 1648 transitions. [2022-03-20 12:16:35,937 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:35,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1648 transitions. [2022-03-20 12:16:35,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-03-20 12:16:35,939 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:35,939 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:35,939 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 12:16:35,940 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:35,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:35,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1906799626, now seen corresponding path program 1 times [2022-03-20 12:16:35,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:35,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932554780] [2022-03-20 12:16:35,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:35,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:36,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:36,077 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-03-20 12:16:36,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:36,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932554780] [2022-03-20 12:16:36,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932554780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:36,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:36,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:36,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899676618] [2022-03-20 12:16:36,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:36,079 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:36,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:36,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:36,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:36,081 INFO L87 Difference]: Start difference. First operand 1157 states and 1648 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:38,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:38,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:38,484 INFO L93 Difference]: Finished difference Result 2313 states and 3299 transitions. [2022-03-20 12:16:38,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:38,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 212 [2022-03-20 12:16:38,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:38,486 INFO L225 Difference]: With dead ends: 2313 [2022-03-20 12:16:38,486 INFO L226 Difference]: Without dead ends: 1184 [2022-03-20 12:16:38,488 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:38,488 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 48 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:38,489 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 563 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:38,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2022-03-20 12:16:38,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1157. [2022-03-20 12:16:38,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4253472222222223) internal successors, (1642), 1152 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) [2022-03-20 12:16:38,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1646 transitions. [2022-03-20 12:16:38,508 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1646 transitions. Word has length 212 [2022-03-20 12:16:38,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:38,508 INFO L478 AbstractCegarLoop]: Abstraction has 1157 states and 1646 transitions. [2022-03-20 12:16:38,508 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:38,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1646 transitions. [2022-03-20 12:16:38,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-20 12:16:38,510 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:38,510 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:38,510 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 12:16:38,510 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:38,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:38,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1020190850, now seen corresponding path program 1 times [2022-03-20 12:16:38,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:38,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902644531] [2022-03-20 12:16:38,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:38,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:38,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:38,670 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-03-20 12:16:38,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:38,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902644531] [2022-03-20 12:16:38,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902644531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:38,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:38,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:38,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590738302] [2022-03-20 12:16:38,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:38,671 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:38,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:38,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:38,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:38,672 INFO L87 Difference]: Start difference. First operand 1157 states and 1646 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:39,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:41,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:43,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:46,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:46,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:46,395 INFO L93 Difference]: Finished difference Result 2313 states and 3295 transitions. [2022-03-20 12:16:46,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:46,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 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 213 [2022-03-20 12:16:46,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:46,397 INFO L225 Difference]: With dead ends: 2313 [2022-03-20 12:16:46,397 INFO L226 Difference]: Without dead ends: 1184 [2022-03-20 12:16:46,399 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:46,399 INFO L913 BasicCegarLoop]: 228 mSDtfsCounter, 46 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:46,399 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 561 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 460 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-03-20 12:16:46,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2022-03-20 12:16:46,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1157. [2022-03-20 12:16:46,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4236111111111112) internal successors, (1640), 1152 states have internal predecessors, (1640), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:46,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1644 transitions. [2022-03-20 12:16:46,419 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1644 transitions. Word has length 213 [2022-03-20 12:16:46,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:46,419 INFO L478 AbstractCegarLoop]: Abstraction has 1157 states and 1644 transitions. [2022-03-20 12:16:46,419 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:46,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1644 transitions. [2022-03-20 12:16:46,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-03-20 12:16:46,421 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:46,421 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:46,421 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 12:16:46,421 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:46,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:46,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1851891999, now seen corresponding path program 1 times [2022-03-20 12:16:46,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:46,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464705192] [2022-03-20 12:16:46,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:46,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:46,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:46,557 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-03-20 12:16:46,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:46,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464705192] [2022-03-20 12:16:46,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464705192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:46,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:46,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:46,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674122899] [2022-03-20 12:16:46,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:46,558 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:46,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:46,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:46,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:46,558 INFO L87 Difference]: Start difference. First operand 1157 states and 1644 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:48,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:49,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:49,007 INFO L93 Difference]: Finished difference Result 2599 states and 3698 transitions. [2022-03-20 12:16:49,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:49,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 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 214 [2022-03-20 12:16:49,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:49,010 INFO L225 Difference]: With dead ends: 2599 [2022-03-20 12:16:49,010 INFO L226 Difference]: Without dead ends: 1470 [2022-03-20 12:16:49,012 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:49,012 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 116 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:49,012 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 341 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 450 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:49,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2022-03-20 12:16:49,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1220. [2022-03-20 12:16:49,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1215 states have (on average 1.4065843621399177) internal successors, (1709), 1215 states have internal predecessors, (1709), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:49,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1713 transitions. [2022-03-20 12:16:49,064 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1713 transitions. Word has length 214 [2022-03-20 12:16:49,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:49,064 INFO L478 AbstractCegarLoop]: Abstraction has 1220 states and 1713 transitions. [2022-03-20 12:16:49,064 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:49,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1713 transitions. [2022-03-20 12:16:49,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-03-20 12:16:49,066 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:49,066 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:16:49,067 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 12:16:49,067 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:49,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:49,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1975990897, now seen corresponding path program 1 times [2022-03-20 12:16:49,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:49,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480667003] [2022-03-20 12:16:49,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:49,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:49,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:49,204 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-20 12:16:49,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:49,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480667003] [2022-03-20 12:16:49,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480667003] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:49,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:49,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:16:49,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082342885] [2022-03-20 12:16:49,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:49,205 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:16:49,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:49,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:16:49,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:16:49,206 INFO L87 Difference]: Start difference. First operand 1220 states and 1713 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 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) [2022-03-20 12:16:51,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:51,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:51,641 INFO L93 Difference]: Finished difference Result 2811 states and 3958 transitions. [2022-03-20 12:16:51,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:16:51,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 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 217 [2022-03-20 12:16:51,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:51,644 INFO L225 Difference]: With dead ends: 2811 [2022-03-20 12:16:51,644 INFO L226 Difference]: Without dead ends: 1619 [2022-03-20 12:16:51,645 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:16:51,646 INFO L913 BasicCegarLoop]: 376 mSDtfsCounter, 133 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:51,646 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 571 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:51,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2022-03-20 12:16:51,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1619. [2022-03-20 12:16:51,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1614 states have (on average 1.4052044609665428) internal successors, (2268), 1614 states have internal predecessors, (2268), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:51,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2272 transitions. [2022-03-20 12:16:51,670 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2272 transitions. Word has length 217 [2022-03-20 12:16:51,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:51,670 INFO L478 AbstractCegarLoop]: Abstraction has 1619 states and 2272 transitions. [2022-03-20 12:16:51,670 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 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) [2022-03-20 12:16:51,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2272 transitions. [2022-03-20 12:16:51,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-03-20 12:16:51,672 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:51,673 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:51,673 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-20 12:16:51,673 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:51,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:51,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1082074321, now seen corresponding path program 1 times [2022-03-20 12:16:51,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:51,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797251160] [2022-03-20 12:16:51,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:51,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:51,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-20 12:16:51,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:51,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797251160] [2022-03-20 12:16:51,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797251160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:51,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:51,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 12:16:51,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092852606] [2022-03-20 12:16:51,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:51,873 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 12:16:51,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:51,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 12:16:51,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:51,873 INFO L87 Difference]: Start difference. First operand 1619 states and 2272 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:53,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:54,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:54,664 INFO L93 Difference]: Finished difference Result 4168 states and 5894 transitions. [2022-03-20 12:16:54,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 12:16:54,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 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 261 [2022-03-20 12:16:54,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:54,669 INFO L225 Difference]: With dead ends: 4168 [2022-03-20 12:16:54,670 INFO L226 Difference]: Without dead ends: 2577 [2022-03-20 12:16:54,673 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-20 12:16:54,673 INFO L913 BasicCegarLoop]: 291 mSDtfsCounter, 102 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:54,673 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 884 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 863 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 12:16:54,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2022-03-20 12:16:54,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 2506. [2022-03-20 12:16:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2506 states, 2501 states have (on average 1.4234306277489004) internal successors, (3560), 2501 states have internal predecessors, (3560), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:54,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 3564 transitions. [2022-03-20 12:16:54,732 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 3564 transitions. Word has length 261 [2022-03-20 12:16:54,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:54,732 INFO L478 AbstractCegarLoop]: Abstraction has 2506 states and 3564 transitions. [2022-03-20 12:16:54,732 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:54,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 3564 transitions. [2022-03-20 12:16:54,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-03-20 12:16:54,736 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:54,736 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-20 12:16:54,736 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 12:16:54,736 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:54,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:54,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1512152496, now seen corresponding path program 1 times [2022-03-20 12:16:54,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:54,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104468965] [2022-03-20 12:16:54,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:54,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:54,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-03-20 12:16:54,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:54,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104468965] [2022-03-20 12:16:54,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104468965] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:54,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:54,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:54,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56800194] [2022-03-20 12:16:54,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:54,975 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:54,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:54,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:54,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:54,975 INFO L87 Difference]: Start difference. First operand 2506 states and 3564 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:56,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:57,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:57,510 INFO L93 Difference]: Finished difference Result 5555 states and 7884 transitions. [2022-03-20 12:16:57,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:57,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 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 261 [2022-03-20 12:16:57,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:57,516 INFO L225 Difference]: With dead ends: 5555 [2022-03-20 12:16:57,516 INFO L226 Difference]: Without dead ends: 3063 [2022-03-20 12:16:57,521 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:57,521 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 54 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:57,521 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 607 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 574 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:16:57,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2022-03-20 12:16:57,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 2791. [2022-03-20 12:16:57,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2786 states have (on average 1.429289303661163) internal successors, (3982), 2786 states have internal predecessors, (3982), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:57,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 3986 transitions. [2022-03-20 12:16:57,591 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 3986 transitions. Word has length 261 [2022-03-20 12:16:57,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:57,592 INFO L478 AbstractCegarLoop]: Abstraction has 2791 states and 3986 transitions. [2022-03-20 12:16:57,592 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:57,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 3986 transitions. [2022-03-20 12:16:57,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-03-20 12:16:57,596 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:57,596 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:57,596 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-20 12:16:57,597 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:57,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:57,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1842796416, now seen corresponding path program 1 times [2022-03-20 12:16:57,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:57,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677210287] [2022-03-20 12:16:57,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:57,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:57,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:57,805 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-03-20 12:16:57,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:57,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677210287] [2022-03-20 12:16:57,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677210287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:57,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:57,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:57,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316077242] [2022-03-20 12:16:57,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:57,806 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:57,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:57,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:57,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:57,806 INFO L87 Difference]: Start difference. First operand 2791 states and 3986 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:59,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:00,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:00,294 INFO L93 Difference]: Finished difference Result 5955 states and 8497 transitions. [2022-03-20 12:17:00,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:00,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 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 [2022-03-20 12:17:00,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:00,302 INFO L225 Difference]: With dead ends: 5955 [2022-03-20 12:17:00,302 INFO L226 Difference]: Without dead ends: 3192 [2022-03-20 12:17:00,307 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:00,307 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 37 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:00,307 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 572 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:17:00,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2022-03-20 12:17:00,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 3015. [2022-03-20 12:17:00,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 3010 states have (on average 1.4275747508305647) internal successors, (4297), 3010 states have internal predecessors, (4297), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:00,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 4301 transitions. [2022-03-20 12:17:00,379 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 4301 transitions. Word has length 274 [2022-03-20 12:17:00,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:00,379 INFO L478 AbstractCegarLoop]: Abstraction has 3015 states and 4301 transitions. [2022-03-20 12:17:00,379 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:00,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 4301 transitions. [2022-03-20 12:17:00,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-03-20 12:17:00,384 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:00,384 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-20 12:17:00,384 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-20 12:17:00,384 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:00,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:00,385 INFO L85 PathProgramCache]: Analyzing trace with hash -431060527, now seen corresponding path program 1 times [2022-03-20 12:17:00,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:00,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907937106] [2022-03-20 12:17:00,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:00,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:00,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:00,630 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2022-03-20 12:17:00,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:00,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907937106] [2022-03-20 12:17:00,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907937106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:00,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:00,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:00,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58017097] [2022-03-20 12:17:00,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:00,631 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:00,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:00,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:00,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:00,632 INFO L87 Difference]: Start difference. First operand 3015 states and 4301 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 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) [2022-03-20 12:17:02,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:03,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:03,045 INFO L93 Difference]: Finished difference Result 6263 states and 8924 transitions. [2022-03-20 12:17:03,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:03,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 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 283 [2022-03-20 12:17:03,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:03,052 INFO L225 Difference]: With dead ends: 6263 [2022-03-20 12:17:03,052 INFO L226 Difference]: Without dead ends: 3276 [2022-03-20 12:17:03,058 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:03,058 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 22 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:03,058 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 550 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 417 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:17:03,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states. [2022-03-20 12:17:03,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3197. [2022-03-20 12:17:03,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 3192 states have (on average 1.425125313283208) internal successors, (4549), 3192 states have internal predecessors, (4549), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:03,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 4553 transitions. [2022-03-20 12:17:03,135 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 4553 transitions. Word has length 283 [2022-03-20 12:17:03,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:03,135 INFO L478 AbstractCegarLoop]: Abstraction has 3197 states and 4553 transitions. [2022-03-20 12:17:03,135 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 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) [2022-03-20 12:17:03,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 4553 transitions. [2022-03-20 12:17:03,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-03-20 12:17:03,141 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:03,141 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:17:03,142 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-20 12:17:03,142 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:03,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:03,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1595238686, now seen corresponding path program 1 times [2022-03-20 12:17:03,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:03,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881185408] [2022-03-20 12:17:03,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:03,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:03,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:03,350 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-03-20 12:17:03,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:03,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881185408] [2022-03-20 12:17:03,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881185408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:03,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:03,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:03,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912820673] [2022-03-20 12:17:03,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:03,351 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:03,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:03,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:03,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:03,351 INFO L87 Difference]: Start difference. First operand 3197 states and 4553 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 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) [2022-03-20 12:17:05,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:05,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:05,832 INFO L93 Difference]: Finished difference Result 6451 states and 9188 transitions. [2022-03-20 12:17:05,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:05,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 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 286 [2022-03-20 12:17:05,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:05,836 INFO L225 Difference]: With dead ends: 6451 [2022-03-20 12:17:05,836 INFO L226 Difference]: Without dead ends: 3282 [2022-03-20 12:17:05,840 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:05,840 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 34 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:05,840 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 569 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:17:05,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3282 states. [2022-03-20 12:17:05,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3282 to 3197. [2022-03-20 12:17:05,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 3192 states have (on average 1.4238721804511278) internal successors, (4545), 3192 states have internal predecessors, (4545), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:05,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 4549 transitions. [2022-03-20 12:17:05,910 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 4549 transitions. Word has length 286 [2022-03-20 12:17:05,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:05,910 INFO L478 AbstractCegarLoop]: Abstraction has 3197 states and 4549 transitions. [2022-03-20 12:17:05,910 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 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) [2022-03-20 12:17:05,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 4549 transitions. [2022-03-20 12:17:05,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-03-20 12:17:05,915 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:05,915 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1] [2022-03-20 12:17:05,915 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-20 12:17:05,916 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:05,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:05,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1689725604, now seen corresponding path program 1 times [2022-03-20 12:17:05,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:05,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322887320] [2022-03-20 12:17:05,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:05,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:06,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:06,119 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-03-20 12:17:06,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:06,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322887320] [2022-03-20 12:17:06,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322887320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:06,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:06,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:06,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774458675] [2022-03-20 12:17:06,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:06,120 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:06,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:06,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:06,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:06,121 INFO L87 Difference]: Start difference. First operand 3197 states and 4549 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:07,921 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 [] [2022-03-20 12:17:09,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:11,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:14,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:14,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:14,452 INFO L93 Difference]: Finished difference Result 6697 states and 9532 transitions. [2022-03-20 12:17:14,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:14,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 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 289 [2022-03-20 12:17:14,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:14,456 INFO L225 Difference]: With dead ends: 6697 [2022-03-20 12:17:14,456 INFO L226 Difference]: Without dead ends: 3528 [2022-03-20 12:17:14,460 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:14,460 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 32 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:14,460 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 566 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 465 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-03-20 12:17:14,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2022-03-20 12:17:14,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3393. [2022-03-20 12:17:14,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3393 states, 3388 states have (on average 1.422077922077922) internal successors, (4818), 3388 states have internal predecessors, (4818), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:14,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3393 states to 3393 states and 4822 transitions. [2022-03-20 12:17:14,537 INFO L78 Accepts]: Start accepts. Automaton has 3393 states and 4822 transitions. Word has length 289 [2022-03-20 12:17:14,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:14,538 INFO L478 AbstractCegarLoop]: Abstraction has 3393 states and 4822 transitions. [2022-03-20 12:17:14,538 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:14,538 INFO L276 IsEmpty]: Start isEmpty. Operand 3393 states and 4822 transitions. [2022-03-20 12:17:14,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-03-20 12:17:14,543 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:14,544 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-20 12:17:14,544 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-20 12:17:14,544 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:14,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:14,544 INFO L85 PathProgramCache]: Analyzing trace with hash -294707517, now seen corresponding path program 1 times [2022-03-20 12:17:14,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:14,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001046603] [2022-03-20 12:17:14,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:14,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:14,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:14,744 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 443 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-03-20 12:17:14,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:14,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001046603] [2022-03-20 12:17:14,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001046603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:14,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:14,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:14,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125758999] [2022-03-20 12:17:14,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:14,745 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:14,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:14,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:14,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:14,745 INFO L87 Difference]: Start difference. First operand 3393 states and 4822 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:16,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:17,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:17,291 INFO L93 Difference]: Finished difference Result 6993 states and 9910 transitions. [2022-03-20 12:17:17,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:17,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 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 290 [2022-03-20 12:17:17,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:17,295 INFO L225 Difference]: With dead ends: 6993 [2022-03-20 12:17:17,295 INFO L226 Difference]: Without dead ends: 3628 [2022-03-20 12:17:17,299 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:17,300 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 60 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:17,300 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 600 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 556 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:17:17,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3628 states. [2022-03-20 12:17:17,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3628 to 3393. [2022-03-20 12:17:17,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3393 states, 3388 states have (on average 1.4200118063754428) internal successors, (4811), 3388 states have internal predecessors, (4811), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:17,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3393 states to 3393 states and 4815 transitions. [2022-03-20 12:17:17,360 INFO L78 Accepts]: Start accepts. Automaton has 3393 states and 4815 transitions. Word has length 290 [2022-03-20 12:17:17,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:17,360 INFO L478 AbstractCegarLoop]: Abstraction has 3393 states and 4815 transitions. [2022-03-20 12:17:17,360 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:17,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3393 states and 4815 transitions. [2022-03-20 12:17:17,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-03-20 12:17:17,365 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:17,365 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:17:17,365 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-20 12:17:17,365 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:17,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:17,366 INFO L85 PathProgramCache]: Analyzing trace with hash -769202205, now seen corresponding path program 1 times [2022-03-20 12:17:17,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:17,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412107857] [2022-03-20 12:17:17,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:17,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:17,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 442 proven. 19 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-03-20 12:17:17,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:17,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412107857] [2022-03-20 12:17:17,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412107857] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:17:17,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669187985] [2022-03-20 12:17:17,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:17,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:17:17,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:17:17,575 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:17:17,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 12:17:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:18,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 1523 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-20 12:17:18,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:17:18,807 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:17:18,808 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:17:18,872 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:17:18,872 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:17:18,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 12:17:19,058 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 12:17:19,088 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:17:19,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 12:17:19,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:17:19,273 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 437 proven. 83 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-03-20 12:17:19,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:17:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 443 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-03-20 12:17:19,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669187985] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 12:17:19,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 12:17:19,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-20 12:17:19,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970595956] [2022-03-20 12:17:19,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:19,694 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:17:19,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:19,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:17:19,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-20 12:17:19,694 INFO L87 Difference]: Start difference. First operand 3393 states and 4815 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:21,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:22,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:22,117 INFO L93 Difference]: Finished difference Result 7382 states and 10474 transitions. [2022-03-20 12:17:22,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:17:22,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 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 290 [2022-03-20 12:17:22,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:22,124 INFO L225 Difference]: With dead ends: 7382 [2022-03-20 12:17:22,125 INFO L226 Difference]: Without dead ends: 4017 [2022-03-20 12:17:22,130 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-20 12:17:22,131 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 103 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:22,131 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 381 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 238 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:17:22,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4017 states. [2022-03-20 12:17:22,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4017 to 3553. [2022-03-20 12:17:22,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 3548 states have (on average 1.4168545659526495) internal successors, (5027), 3548 states have internal predecessors, (5027), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:22,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 5031 transitions. [2022-03-20 12:17:22,225 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 5031 transitions. Word has length 290 [2022-03-20 12:17:22,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:22,225 INFO L478 AbstractCegarLoop]: Abstraction has 3553 states and 5031 transitions. [2022-03-20 12:17:22,225 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:22,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 5031 transitions. [2022-03-20 12:17:22,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-03-20 12:17:22,230 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:22,230 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1] [2022-03-20 12:17:22,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 12:17:22,431 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:17:22,432 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:22,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:22,432 INFO L85 PathProgramCache]: Analyzing trace with hash -714948911, now seen corresponding path program 1 times [2022-03-20 12:17:22,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:22,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280458923] [2022-03-20 12:17:22,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:22,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:22,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:22,681 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 423 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-03-20 12:17:22,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:22,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280458923] [2022-03-20 12:17:22,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280458923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:22,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:22,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:22,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45553502] [2022-03-20 12:17:22,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:22,683 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:22,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:22,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:22,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:22,683 INFO L87 Difference]: Start difference. First operand 3553 states and 5031 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:25,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:27,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:29,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:30,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:30,253 INFO L93 Difference]: Finished difference Result 7257 states and 10237 transitions. [2022-03-20 12:17:30,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:30,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 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 291 [2022-03-20 12:17:30,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:30,259 INFO L225 Difference]: With dead ends: 7257 [2022-03-20 12:17:30,259 INFO L226 Difference]: Without dead ends: 3732 [2022-03-20 12:17:30,264 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:30,264 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 54 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:30,265 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 590 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 521 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-03-20 12:17:30,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3732 states. [2022-03-20 12:17:30,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3732 to 3553. [2022-03-20 12:17:30,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 3548 states have (on average 1.414881623449831) internal successors, (5020), 3548 states have internal predecessors, (5020), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:30,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 5024 transitions. [2022-03-20 12:17:30,331 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 5024 transitions. Word has length 291 [2022-03-20 12:17:30,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:30,331 INFO L478 AbstractCegarLoop]: Abstraction has 3553 states and 5024 transitions. [2022-03-20 12:17:30,331 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:30,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 5024 transitions. [2022-03-20 12:17:30,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-03-20 12:17:30,337 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:30,337 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:17:30,337 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-20 12:17:30,338 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:30,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:30,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1238191763, now seen corresponding path program 1 times [2022-03-20 12:17:30,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:30,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120139766] [2022-03-20 12:17:30,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:30,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:30,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:30,583 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 428 proven. 69 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-03-20 12:17:30,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:30,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120139766] [2022-03-20 12:17:30,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120139766] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:17:30,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019480109] [2022-03-20 12:17:30,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:30,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:17:30,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:17:30,588 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:17:30,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 12:17:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:31,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1585 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-20 12:17:31,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:17:31,680 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:17:31,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:17:31,724 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:17:31,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:17:31,798 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 12:17:31,904 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 12:17:31,922 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:17:31,922 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 12:17:32,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:17:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 417 proven. 91 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-20 12:17:32,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:17:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 423 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-03-20 12:17:32,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019480109] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 12:17:32,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 12:17:32,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-20 12:17:32,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735437334] [2022-03-20 12:17:32,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:32,524 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:17:32,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:32,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:17:32,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-20 12:17:32,525 INFO L87 Difference]: Start difference. First operand 3553 states and 5024 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:34,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:34,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:34,857 INFO L93 Difference]: Finished difference Result 7432 states and 10475 transitions. [2022-03-20 12:17:34,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:17:34,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 1 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 291 [2022-03-20 12:17:34,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:34,863 INFO L225 Difference]: With dead ends: 7432 [2022-03-20 12:17:34,863 INFO L226 Difference]: Without dead ends: 3907 [2022-03-20 12:17:34,869 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-20 12:17:34,869 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 101 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:34,870 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 363 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 223 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:17:34,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3907 states. [2022-03-20 12:17:34,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3907 to 3553. [2022-03-20 12:17:34,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 3548 states have (on average 1.4044532130777903) internal successors, (4983), 3548 states have internal predecessors, (4983), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:34,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 4987 transitions. [2022-03-20 12:17:34,944 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 4987 transitions. Word has length 291 [2022-03-20 12:17:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:34,944 INFO L478 AbstractCegarLoop]: Abstraction has 3553 states and 4987 transitions. [2022-03-20 12:17:34,944 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 4987 transitions. [2022-03-20 12:17:34,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-03-20 12:17:34,949 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:34,949 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-20 12:17:34,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 12:17:35,150 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2022-03-20 12:17:35,150 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:35,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:35,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1789587530, now seen corresponding path program 1 times [2022-03-20 12:17:35,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:35,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990123715] [2022-03-20 12:17:35,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:35,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:35,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:35,341 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-03-20 12:17:35,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:35,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990123715] [2022-03-20 12:17:35,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990123715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:35,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:35,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:35,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977349084] [2022-03-20 12:17:35,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:35,342 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:35,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:35,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:35,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:35,343 INFO L87 Difference]: Start difference. First operand 3553 states and 4987 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:37,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:39,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:41,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:43,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:43,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:43,608 INFO L93 Difference]: Finished difference Result 7115 states and 9981 transitions. [2022-03-20 12:17:43,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:43,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 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 293 [2022-03-20 12:17:43,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:43,613 INFO L225 Difference]: With dead ends: 7115 [2022-03-20 12:17:43,614 INFO L226 Difference]: Without dead ends: 3590 [2022-03-20 12:17:43,619 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:43,619 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 15 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:43,619 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 545 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 383 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-03-20 12:17:43,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2022-03-20 12:17:43,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3553. [2022-03-20 12:17:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 3548 states have (on average 1.4024802705749717) internal successors, (4976), 3548 states have internal predecessors, (4976), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:43,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 4980 transitions. [2022-03-20 12:17:43,732 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 4980 transitions. Word has length 293 [2022-03-20 12:17:43,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:43,732 INFO L478 AbstractCegarLoop]: Abstraction has 3553 states and 4980 transitions. [2022-03-20 12:17:43,732 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 4980 transitions. [2022-03-20 12:17:43,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-03-20 12:17:43,736 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:43,737 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:17:43,737 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-20 12:17:43,737 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:43,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:43,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1826158570, now seen corresponding path program 1 times [2022-03-20 12:17:43,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:43,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362288429] [2022-03-20 12:17:43,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:43,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:43,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:43,907 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 372 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-03-20 12:17:43,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:43,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362288429] [2022-03-20 12:17:43,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362288429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:43,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:43,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:43,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028958384] [2022-03-20 12:17:43,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:43,908 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:43,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:43,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:43,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:43,909 INFO L87 Difference]: Start difference. First operand 3553 states and 4980 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:45,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:46,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:46,434 INFO L93 Difference]: Finished difference Result 7486 states and 10471 transitions. [2022-03-20 12:17:46,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:46,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 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 293 [2022-03-20 12:17:46,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:46,439 INFO L225 Difference]: With dead ends: 7486 [2022-03-20 12:17:46,439 INFO L226 Difference]: Without dead ends: 3961 [2022-03-20 12:17:46,442 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:46,442 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 33 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:46,442 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 578 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:17:46,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3961 states. [2022-03-20 12:17:46,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3961 to 3812. [2022-03-20 12:17:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3812 states, 3807 states have (on average 1.4026792750197006) internal successors, (5340), 3807 states have internal predecessors, (5340), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:46,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3812 states to 3812 states and 5344 transitions. [2022-03-20 12:17:46,516 INFO L78 Accepts]: Start accepts. Automaton has 3812 states and 5344 transitions. Word has length 293 [2022-03-20 12:17:46,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:46,516 INFO L478 AbstractCegarLoop]: Abstraction has 3812 states and 5344 transitions. [2022-03-20 12:17:46,517 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:46,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3812 states and 5344 transitions. [2022-03-20 12:17:46,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-03-20 12:17:46,522 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:46,522 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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, 1] [2022-03-20 12:17:46,522 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-20 12:17:46,522 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:46,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:46,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1939734552, now seen corresponding path program 1 times [2022-03-20 12:17:46,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:46,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531663371] [2022-03-20 12:17:46,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:46,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:46,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:46,706 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-03-20 12:17:46,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:46,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531663371] [2022-03-20 12:17:46,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531663371] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:46,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:46,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:46,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965051506] [2022-03-20 12:17:46,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:46,706 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:46,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:46,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:46,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:46,707 INFO L87 Difference]: Start difference. First operand 3812 states and 5344 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:48,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:49,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:49,185 INFO L93 Difference]: Finished difference Result 7976 states and 11157 transitions. [2022-03-20 12:17:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:49,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 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 294 [2022-03-20 12:17:49,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:49,189 INFO L225 Difference]: With dead ends: 7976 [2022-03-20 12:17:49,189 INFO L226 Difference]: Without dead ends: 4192 [2022-03-20 12:17:49,192 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:49,192 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 30 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:49,192 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 572 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:17:49,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2022-03-20 12:17:49,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 4057. [2022-03-20 12:17:49,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4057 states, 4052 states have (on average 1.4007897334649555) internal successors, (5676), 4052 states have internal predecessors, (5676), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:49,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4057 states to 4057 states and 5680 transitions. [2022-03-20 12:17:49,253 INFO L78 Accepts]: Start accepts. Automaton has 4057 states and 5680 transitions. Word has length 294 [2022-03-20 12:17:49,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:49,253 INFO L478 AbstractCegarLoop]: Abstraction has 4057 states and 5680 transitions. [2022-03-20 12:17:49,254 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:49,254 INFO L276 IsEmpty]: Start isEmpty. Operand 4057 states and 5680 transitions. [2022-03-20 12:17:49,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-03-20 12:17:49,257 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:49,257 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:17:49,257 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-20 12:17:49,258 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:49,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:49,258 INFO L85 PathProgramCache]: Analyzing trace with hash 158091750, now seen corresponding path program 1 times [2022-03-20 12:17:49,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:49,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594943660] [2022-03-20 12:17:49,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:49,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:49,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2022-03-20 12:17:49,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:49,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594943660] [2022-03-20 12:17:49,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594943660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:49,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:49,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:49,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183937105] [2022-03-20 12:17:49,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:49,419 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:49,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:49,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:49,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:49,420 INFO L87 Difference]: Start difference. First operand 4057 states and 5680 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:51,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:51,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:51,935 INFO L93 Difference]: Finished difference Result 8437 states and 11790 transitions. [2022-03-20 12:17:51,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:51,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 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 295 [2022-03-20 12:17:51,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:51,940 INFO L225 Difference]: With dead ends: 8437 [2022-03-20 12:17:51,940 INFO L226 Difference]: Without dead ends: 4408 [2022-03-20 12:17:51,943 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:51,943 INFO L913 BasicCegarLoop]: 240 mSDtfsCounter, 38 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:51,944 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 586 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:17:51,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4408 states. [2022-03-20 12:17:52,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4408 to 4233. [2022-03-20 12:17:52,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4228 states have (on average 1.402081362346263) internal successors, (5928), 4228 states have internal predecessors, (5928), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:52,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 5932 transitions. [2022-03-20 12:17:52,036 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 5932 transitions. Word has length 295 [2022-03-20 12:17:52,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:52,036 INFO L478 AbstractCegarLoop]: Abstraction has 4233 states and 5932 transitions. [2022-03-20 12:17:52,036 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 5932 transitions. [2022-03-20 12:17:52,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-03-20 12:17:52,042 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:52,042 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:17:52,042 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-20 12:17:52,042 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:52,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:52,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1616823882, now seen corresponding path program 1 times [2022-03-20 12:17:52,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:52,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764276002] [2022-03-20 12:17:52,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:52,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:52,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:52,215 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 491 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-03-20 12:17:52,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:52,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764276002] [2022-03-20 12:17:52,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764276002] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:52,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:52,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:52,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327633330] [2022-03-20 12:17:52,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:52,216 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:52,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:52,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:52,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:52,216 INFO L87 Difference]: Start difference. First operand 4233 states and 5932 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:54,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:54,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:54,767 INFO L93 Difference]: Finished difference Result 8617 states and 12039 transitions. [2022-03-20 12:17:54,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:54,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 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 301 [2022-03-20 12:17:54,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:54,772 INFO L225 Difference]: With dead ends: 8617 [2022-03-20 12:17:54,773 INFO L226 Difference]: Without dead ends: 4412 [2022-03-20 12:17:54,776 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:54,776 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 40 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:54,777 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 585 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:17:54,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4412 states. [2022-03-20 12:17:54,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4412 to 4233. [2022-03-20 12:17:54,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4228 states have (on average 1.401135288552507) internal successors, (5924), 4228 states have internal predecessors, (5924), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:54,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 5928 transitions. [2022-03-20 12:17:54,870 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 5928 transitions. Word has length 301 [2022-03-20 12:17:54,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:54,870 INFO L478 AbstractCegarLoop]: Abstraction has 4233 states and 5928 transitions. [2022-03-20 12:17:54,870 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:54,870 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 5928 transitions. [2022-03-20 12:17:54,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-03-20 12:17:54,874 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:54,875 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:17:54,875 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-20 12:17:54,875 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:54,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:54,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1142797899, now seen corresponding path program 1 times [2022-03-20 12:17:54,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:54,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78440242] [2022-03-20 12:17:54,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:54,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:55,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:55,257 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 515 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-03-20 12:17:55,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:55,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78440242] [2022-03-20 12:17:55,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78440242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:55,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:55,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 12:17:55,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986279677] [2022-03-20 12:17:55,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:55,258 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 12:17:55,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:55,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 12:17:55,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 12:17:55,259 INFO L87 Difference]: Start difference. First operand 4233 states and 5928 transitions. Second operand has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:57,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:58,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:58,579 INFO L93 Difference]: Finished difference Result 9567 states and 13285 transitions. [2022-03-20 12:17:58,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 12:17:58,579 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (3), 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 301 [2022-03-20 12:17:58,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:58,584 INFO L225 Difference]: With dead ends: 9567 [2022-03-20 12:17:58,584 INFO L226 Difference]: Without dead ends: 5362 [2022-03-20 12:17:58,588 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-03-20 12:17:58,588 INFO L913 BasicCegarLoop]: 287 mSDtfsCounter, 328 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:58,588 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 1010 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1179 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 12:17:58,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2022-03-20 12:17:58,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 4347. [2022-03-20 12:17:58,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4347 states, 4342 states have (on average 1.4007369875633349) internal successors, (6082), 4342 states have internal predecessors, (6082), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:58,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 6086 transitions. [2022-03-20 12:17:58,666 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 6086 transitions. Word has length 301 [2022-03-20 12:17:58,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:58,666 INFO L478 AbstractCegarLoop]: Abstraction has 4347 states and 6086 transitions. [2022-03-20 12:17:58,666 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:58,666 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 6086 transitions. [2022-03-20 12:17:58,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-03-20 12:17:58,683 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:58,683 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:17:58,683 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-20 12:17:58,683 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:58,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:58,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1487713644, now seen corresponding path program 1 times [2022-03-20 12:17:58,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:58,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140533810] [2022-03-20 12:17:58,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:58,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:58,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:58,942 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 515 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-03-20 12:17:58,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:58,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140533810] [2022-03-20 12:17:58,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140533810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:58,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:58,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 12:17:58,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483550382] [2022-03-20 12:17:58,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:58,943 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 12:17:58,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:58,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 12:17:58,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 12:17:58,944 INFO L87 Difference]: Start difference. First operand 4347 states and 6086 transitions. Second operand has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:00,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:02,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:02,324 INFO L93 Difference]: Finished difference Result 11886 states and 16668 transitions. [2022-03-20 12:18:02,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 12:18:02,325 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (3), 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 301 [2022-03-20 12:18:02,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:02,336 INFO L225 Difference]: With dead ends: 11886 [2022-03-20 12:18:02,337 INFO L226 Difference]: Without dead ends: 7567 [2022-03-20 12:18:02,344 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-20 12:18:02,344 INFO L913 BasicCegarLoop]: 312 mSDtfsCounter, 180 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:02,344 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 1207 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1328 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 12:18:02,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7567 states. [2022-03-20 12:18:02,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7567 to 4768. [2022-03-20 12:18:02,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4768 states, 4763 states have (on average 1.4031072853243753) internal successors, (6683), 4763 states have internal predecessors, (6683), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:02,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4768 states to 4768 states and 6687 transitions. [2022-03-20 12:18:02,528 INFO L78 Accepts]: Start accepts. Automaton has 4768 states and 6687 transitions. Word has length 301 [2022-03-20 12:18:02,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:02,528 INFO L478 AbstractCegarLoop]: Abstraction has 4768 states and 6687 transitions. [2022-03-20 12:18:02,528 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:02,528 INFO L276 IsEmpty]: Start isEmpty. Operand 4768 states and 6687 transitions. [2022-03-20 12:18:02,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-03-20 12:18:02,533 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:02,533 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:18:02,534 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-20 12:18:02,534 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:02,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:02,534 INFO L85 PathProgramCache]: Analyzing trace with hash -335033923, now seen corresponding path program 1 times [2022-03-20 12:18:02,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:02,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024537285] [2022-03-20 12:18:02,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:02,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:02,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:02,718 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-03-20 12:18:02,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:02,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024537285] [2022-03-20 12:18:02,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024537285] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:02,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:02,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:02,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325806494] [2022-03-20 12:18:02,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:02,719 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:02,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:02,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:02,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:02,719 INFO L87 Difference]: Start difference. First operand 4768 states and 6687 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:04,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:05,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:05,240 INFO L93 Difference]: Finished difference Result 9678 states and 13538 transitions. [2022-03-20 12:18:05,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:05,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 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 302 [2022-03-20 12:18:05,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:05,245 INFO L225 Difference]: With dead ends: 9678 [2022-03-20 12:18:05,245 INFO L226 Difference]: Without dead ends: 4918 [2022-03-20 12:18:05,249 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:05,249 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 34 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:05,249 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:18:05,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4918 states. [2022-03-20 12:18:05,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4918 to 4452. [2022-03-20 12:18:05,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4452 states, 4447 states have (on average 1.402968293231392) internal successors, (6239), 4447 states have internal predecessors, (6239), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:05,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4452 states to 4452 states and 6243 transitions. [2022-03-20 12:18:05,369 INFO L78 Accepts]: Start accepts. Automaton has 4452 states and 6243 transitions. Word has length 302 [2022-03-20 12:18:05,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:05,369 INFO L478 AbstractCegarLoop]: Abstraction has 4452 states and 6243 transitions. [2022-03-20 12:18:05,369 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:05,369 INFO L276 IsEmpty]: Start isEmpty. Operand 4452 states and 6243 transitions. [2022-03-20 12:18:05,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-03-20 12:18:05,373 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:05,374 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1] [2022-03-20 12:18:05,374 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-20 12:18:05,374 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:05,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:05,374 INFO L85 PathProgramCache]: Analyzing trace with hash 18002548, now seen corresponding path program 1 times [2022-03-20 12:18:05,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:05,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124983885] [2022-03-20 12:18:05,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:05,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:05,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:05,540 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-03-20 12:18:05,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:05,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124983885] [2022-03-20 12:18:05,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124983885] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:05,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:05,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:05,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663182286] [2022-03-20 12:18:05,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:05,541 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:05,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:05,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:05,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:05,542 INFO L87 Difference]: Start difference. First operand 4452 states and 6243 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:08,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:10,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:12,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:13,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:13,016 INFO L93 Difference]: Finished difference Result 9326 states and 13050 transitions. [2022-03-20 12:18:13,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:13,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 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 303 [2022-03-20 12:18:13,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:13,021 INFO L225 Difference]: With dead ends: 9326 [2022-03-20 12:18:13,021 INFO L226 Difference]: Without dead ends: 4902 [2022-03-20 12:18:13,025 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:13,025 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 53 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:13,025 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 576 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 478 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-03-20 12:18:13,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4902 states. [2022-03-20 12:18:13,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4902 to 4580. [2022-03-20 12:18:13,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 4575 states have (on average 1.4004371584699453) internal successors, (6407), 4575 states have internal predecessors, (6407), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:13,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 6411 transitions. [2022-03-20 12:18:13,156 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 6411 transitions. Word has length 303 [2022-03-20 12:18:13,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:13,157 INFO L478 AbstractCegarLoop]: Abstraction has 4580 states and 6411 transitions. [2022-03-20 12:18:13,157 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:13,157 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 6411 transitions. [2022-03-20 12:18:13,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-03-20 12:18:13,161 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:13,161 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1] [2022-03-20 12:18:13,161 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-20 12:18:13,161 INFO L403 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:13,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:13,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1324144570, now seen corresponding path program 1 times [2022-03-20 12:18:13,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:13,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238115079] [2022-03-20 12:18:13,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:13,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:13,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:13,363 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-03-20 12:18:13,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:13,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238115079] [2022-03-20 12:18:13,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238115079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:13,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:13,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:13,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322257506] [2022-03-20 12:18:13,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:13,364 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:13,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:13,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:13,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:13,364 INFO L87 Difference]: Start difference. First operand 4580 states and 6411 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:15,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:15,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:15,984 INFO L93 Difference]: Finished difference Result 9438 states and 13194 transitions. [2022-03-20 12:18:15,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:15,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 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 318 [2022-03-20 12:18:15,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:15,995 INFO L225 Difference]: With dead ends: 9438 [2022-03-20 12:18:15,995 INFO L226 Difference]: Without dead ends: 4886 [2022-03-20 12:18:16,002 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:16,002 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 36 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:16,003 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 572 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:18:16,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4886 states. [2022-03-20 12:18:16,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4886 to 4700. [2022-03-20 12:18:16,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 4695 states have (on average 1.3987220447284345) internal successors, (6567), 4695 states have internal predecessors, (6567), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:16,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 6571 transitions. [2022-03-20 12:18:16,192 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 6571 transitions. Word has length 318 [2022-03-20 12:18:16,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:16,192 INFO L478 AbstractCegarLoop]: Abstraction has 4700 states and 6571 transitions. [2022-03-20 12:18:16,192 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:16,193 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 6571 transitions. [2022-03-20 12:18:16,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-03-20 12:18:16,210 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:16,210 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:18:16,210 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-20 12:18:16,210 INFO L403 AbstractCegarLoop]: === Iteration 76 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:16,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:16,211 INFO L85 PathProgramCache]: Analyzing trace with hash 160378302, now seen corresponding path program 1 times [2022-03-20 12:18:16,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:16,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380997836] [2022-03-20 12:18:16,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:16,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:16,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:16,442 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 531 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-03-20 12:18:16,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:16,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380997836] [2022-03-20 12:18:16,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380997836] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:16,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:16,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:16,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110963272] [2022-03-20 12:18:16,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:16,443 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:16,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:16,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:16,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:16,444 INFO L87 Difference]: Start difference. First operand 4700 states and 6571 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:18,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:20,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:22,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:24,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:25,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:25,013 INFO L93 Difference]: Finished difference Result 9542 states and 13322 transitions. [2022-03-20 12:18:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:25,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 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 319 [2022-03-20 12:18:25,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:25,018 INFO L225 Difference]: With dead ends: 9542 [2022-03-20 12:18:25,019 INFO L226 Difference]: Without dead ends: 4870 [2022-03-20 12:18:25,022 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:25,023 INFO L913 BasicCegarLoop]: 232 mSDtfsCounter, 39 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:25,023 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 570 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 460 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-03-20 12:18:25,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4870 states. [2022-03-20 12:18:25,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4870 to 4700. [2022-03-20 12:18:25,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 4695 states have (on average 1.3970181043663472) internal successors, (6559), 4695 states have internal predecessors, (6559), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:25,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 6563 transitions. [2022-03-20 12:18:25,140 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 6563 transitions. Word has length 319 [2022-03-20 12:18:25,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:25,141 INFO L478 AbstractCegarLoop]: Abstraction has 4700 states and 6563 transitions. [2022-03-20 12:18:25,141 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:25,141 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 6563 transitions. [2022-03-20 12:18:25,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-03-20 12:18:25,146 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:25,146 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2022-03-20 12:18:25,146 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-20 12:18:25,146 INFO L403 AbstractCegarLoop]: === Iteration 77 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:25,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:25,147 INFO L85 PathProgramCache]: Analyzing trace with hash -133490187, now seen corresponding path program 1 times [2022-03-20 12:18:25,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:25,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421684043] [2022-03-20 12:18:25,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:25,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:25,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:25,314 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 594 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-03-20 12:18:25,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:25,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421684043] [2022-03-20 12:18:25,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421684043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:25,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:25,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:25,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43872089] [2022-03-20 12:18:25,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:25,315 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:25,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:25,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:25,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:25,315 INFO L87 Difference]: Start difference. First operand 4700 states and 6563 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:27,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:27,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:27,818 INFO L93 Difference]: Finished difference Result 9542 states and 13306 transitions. [2022-03-20 12:18:27,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:27,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 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 325 [2022-03-20 12:18:27,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:27,823 INFO L225 Difference]: With dead ends: 9542 [2022-03-20 12:18:27,823 INFO L226 Difference]: Without dead ends: 4870 [2022-03-20 12:18:27,829 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:27,830 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 40 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:27,831 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 568 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:18:27,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4870 states. [2022-03-20 12:18:27,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4870 to 4700. [2022-03-20 12:18:27,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 4695 states have (on average 1.39531416400426) internal successors, (6551), 4695 states have internal predecessors, (6551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:27,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 6555 transitions. [2022-03-20 12:18:27,955 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 6555 transitions. Word has length 325 [2022-03-20 12:18:27,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:27,955 INFO L478 AbstractCegarLoop]: Abstraction has 4700 states and 6555 transitions. [2022-03-20 12:18:27,955 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:27,955 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 6555 transitions. [2022-03-20 12:18:27,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-03-20 12:18:27,960 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:27,960 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2022-03-20 12:18:27,960 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-20 12:18:27,960 INFO L403 AbstractCegarLoop]: === Iteration 78 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:27,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:27,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2074915050, now seen corresponding path program 1 times [2022-03-20 12:18:27,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:27,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451843872] [2022-03-20 12:18:27,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:27,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:28,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:28,124 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 600 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-03-20 12:18:28,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:28,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451843872] [2022-03-20 12:18:28,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451843872] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:28,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:28,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:28,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734457125] [2022-03-20 12:18:28,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:28,125 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:28,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:28,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:28,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:28,126 INFO L87 Difference]: Start difference. First operand 4700 states and 6555 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:30,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:30,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:30,623 INFO L93 Difference]: Finished difference Result 9510 states and 13250 transitions. [2022-03-20 12:18:30,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:30,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 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 326 [2022-03-20 12:18:30,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:30,628 INFO L225 Difference]: With dead ends: 9510 [2022-03-20 12:18:30,628 INFO L226 Difference]: Without dead ends: 4838 [2022-03-20 12:18:30,632 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:30,633 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 34 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:30,633 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 560 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:18:30,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2022-03-20 12:18:30,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 4700. [2022-03-20 12:18:30,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 4695 states have (on average 1.3936102236421726) internal successors, (6543), 4695 states have internal predecessors, (6543), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:30,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 6547 transitions. [2022-03-20 12:18:30,746 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 6547 transitions. Word has length 326 [2022-03-20 12:18:30,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:30,746 INFO L478 AbstractCegarLoop]: Abstraction has 4700 states and 6547 transitions. [2022-03-20 12:18:30,746 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:30,747 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 6547 transitions. [2022-03-20 12:18:30,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-20 12:18:30,752 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:30,752 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-03-20 12:18:30,752 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-20 12:18:30,753 INFO L403 AbstractCegarLoop]: === Iteration 79 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:30,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:30,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1913334922, now seen corresponding path program 1 times [2022-03-20 12:18:30,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:30,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361693173] [2022-03-20 12:18:30,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:30,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:31,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2022-03-20 12:18:31,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:31,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361693173] [2022-03-20 12:18:31,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361693173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:31,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:31,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 12:18:31,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463569053] [2022-03-20 12:18:31,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:31,081 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 12:18:31,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:31,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 12:18:31,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 12:18:31,081 INFO L87 Difference]: Start difference. First operand 4700 states and 6547 transitions. Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 7 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:33,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:34,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:34,248 INFO L93 Difference]: Finished difference Result 10398 states and 14383 transitions. [2022-03-20 12:18:34,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 12:18:34,249 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 7 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 331 [2022-03-20 12:18:34,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:34,254 INFO L225 Difference]: With dead ends: 10398 [2022-03-20 12:18:34,254 INFO L226 Difference]: Without dead ends: 5720 [2022-03-20 12:18:34,257 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-03-20 12:18:34,258 INFO L913 BasicCegarLoop]: 274 mSDtfsCounter, 292 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:34,258 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 976 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1099 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 12:18:34,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5720 states. [2022-03-20 12:18:34,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 4709. [2022-03-20 12:18:34,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4709 states, 4704 states have (on average 1.3934948979591837) internal successors, (6555), 4704 states have internal predecessors, (6555), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:34,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4709 states to 4709 states and 6559 transitions. [2022-03-20 12:18:34,360 INFO L78 Accepts]: Start accepts. Automaton has 4709 states and 6559 transitions. Word has length 331 [2022-03-20 12:18:34,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:34,360 INFO L478 AbstractCegarLoop]: Abstraction has 4709 states and 6559 transitions. [2022-03-20 12:18:34,360 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 7 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:34,360 INFO L276 IsEmpty]: Start isEmpty. Operand 4709 states and 6559 transitions. [2022-03-20 12:18:34,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-20 12:18:34,364 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:34,365 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:18:34,365 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-20 12:18:34,365 INFO L403 AbstractCegarLoop]: === Iteration 80 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:34,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:34,365 INFO L85 PathProgramCache]: Analyzing trace with hash -680891895, now seen corresponding path program 1 times [2022-03-20 12:18:34,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:34,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922728950] [2022-03-20 12:18:34,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:34,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:34,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:34,626 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2022-03-20 12:18:34,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:34,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922728950] [2022-03-20 12:18:34,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922728950] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:34,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:34,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 12:18:34,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781430716] [2022-03-20 12:18:34,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:34,627 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 12:18:34,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:34,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 12:18:34,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 12:18:34,628 INFO L87 Difference]: Start difference. First operand 4709 states and 6559 transitions. Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 7 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:36,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:38,131 INFO L93 Difference]: Finished difference Result 11094 states and 15323 transitions. [2022-03-20 12:18:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 12:18:38,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 7 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 331 [2022-03-20 12:18:38,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:38,138 INFO L225 Difference]: With dead ends: 11094 [2022-03-20 12:18:38,139 INFO L226 Difference]: Without dead ends: 6413 [2022-03-20 12:18:38,142 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-03-20 12:18:38,142 INFO L913 BasicCegarLoop]: 334 mSDtfsCounter, 433 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:38,142 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [433 Valid, 1132 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1419 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 12:18:38,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6413 states. [2022-03-20 12:18:38,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6413 to 4706. [2022-03-20 12:18:38,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4706 states, 4701 states have (on average 1.3937460114869176) internal successors, (6552), 4701 states have internal predecessors, (6552), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:38,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4706 states to 4706 states and 6556 transitions. [2022-03-20 12:18:38,259 INFO L78 Accepts]: Start accepts. Automaton has 4706 states and 6556 transitions. Word has length 331 [2022-03-20 12:18:38,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:38,259 INFO L478 AbstractCegarLoop]: Abstraction has 4706 states and 6556 transitions. [2022-03-20 12:18:38,259 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 7 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:38,259 INFO L276 IsEmpty]: Start isEmpty. Operand 4706 states and 6556 transitions. [2022-03-20 12:18:38,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-03-20 12:18:38,264 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:38,264 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:18:38,264 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-20 12:18:38,264 INFO L403 AbstractCegarLoop]: === Iteration 81 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:38,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:38,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1596942315, now seen corresponding path program 1 times [2022-03-20 12:18:38,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:38,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296297131] [2022-03-20 12:18:38,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:38,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:38,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:38,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2022-03-20 12:18:38,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:38,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296297131] [2022-03-20 12:18:38,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296297131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:38,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:38,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 12:18:38,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178339227] [2022-03-20 12:18:38,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:38,743 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 12:18:38,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:38,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 12:18:38,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 12:18:38,744 INFO L87 Difference]: Start difference. First operand 4706 states and 6556 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:40,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:18:41,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:41,264 INFO L93 Difference]: Finished difference Result 9405 states and 13104 transitions. [2022-03-20 12:18:41,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 12:18:41,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 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 360 [2022-03-20 12:18:41,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:41,271 INFO L225 Difference]: With dead ends: 9405 [2022-03-20 12:18:41,272 INFO L226 Difference]: Without dead ends: 4706 [2022-03-20 12:18:41,276 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 12:18:41,276 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 7 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:41,276 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 807 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:18:41,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4706 states. [2022-03-20 12:18:41,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4706 to 4706. [2022-03-20 12:18:41,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4706 states, 4701 states have (on average 1.3935332907891937) internal successors, (6551), 4701 states have internal predecessors, (6551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:41,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4706 states to 4706 states and 6555 transitions. [2022-03-20 12:18:41,411 INFO L78 Accepts]: Start accepts. Automaton has 4706 states and 6555 transitions. Word has length 360 [2022-03-20 12:18:41,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:41,411 INFO L478 AbstractCegarLoop]: Abstraction has 4706 states and 6555 transitions. [2022-03-20 12:18:41,411 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:41,411 INFO L276 IsEmpty]: Start isEmpty. Operand 4706 states and 6555 transitions. [2022-03-20 12:18:41,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-03-20 12:18:41,415 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:41,416 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:18:41,416 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-20 12:18:41,416 INFO L403 AbstractCegarLoop]: === Iteration 82 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:41,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:41,416 INFO L85 PathProgramCache]: Analyzing trace with hash -870525942, now seen corresponding path program 1 times [2022-03-20 12:18:41,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:41,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941822021] [2022-03-20 12:18:41,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:41,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:42,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:42,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 639 proven. 297 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-03-20 12:18:42,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:42,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941822021] [2022-03-20 12:18:42,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941822021] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:18:42,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640974002] [2022-03-20 12:18:42,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:42,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:18:42,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:18:42,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:18:42,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 12:18:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:44,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 137 conjunts are in the unsatisfiable core [2022-03-20 12:18:44,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:18:44,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:18:44,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,477 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 12:18:44,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 12:18:44,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 12:18:44,521 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 12:18:44,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,528 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 12:18:44,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2022-03-20 12:18:44,755 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-20 12:18:44,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-03-20 12:18:44,778 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-20 12:18:44,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-03-20 12:18:44,800 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 12:18:44,801 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-03-20 12:18:44,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-03-20 12:18:44,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-03-20 12:18:44,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:44,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-03-20 12:18:45,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,440 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-03-20 12:18:45,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-03-20 12:18:45,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,451 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-03-20 12:18:45,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,565 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 12:18:45,565 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 110 [2022-03-20 12:18:45,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,605 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 12:18:45,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 107 [2022-03-20 12:18:45,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,646 INFO L356 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-03-20 12:18:45,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 54 [2022-03-20 12:18:45,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,897 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 183 [2022-03-20 12:18:45,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,904 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 183 [2022-03-20 12:18:45,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:45,938 INFO L356 Elim1Store]: treesize reduction 133, result has 24.4 percent of original size [2022-03-20 12:18:45,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 211 treesize of output 229 [2022-03-20 12:18:48,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:48,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:48,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:48,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 224 [2022-03-20 12:18:48,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:48,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:48,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:48,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:48,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:48,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:48,631 INFO L356 Elim1Store]: treesize reduction 156, result has 23.5 percent of original size [2022-03-20 12:18:48,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 260 treesize of output 258 [2022-03-20 12:18:48,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:48,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:48,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:48,640 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 292 treesize of output 240 [2022-03-20 12:18:51,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:51,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:51,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:51,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:51,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:51,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:51,779 INFO L356 Elim1Store]: treesize reduction 34, result has 69.9 percent of original size [2022-03-20 12:18:51,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 269 treesize of output 257 [2022-03-20 12:18:52,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:52,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:52,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:52,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 104 [2022-03-20 12:18:52,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:52,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:52,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:52,430 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 12:18:52,431 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 116 [2022-03-20 12:18:52,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:52,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:52,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:52,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 104 [2022-03-20 12:18:52,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:52,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:52,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:52,502 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 12:18:52,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 116 [2022-03-20 12:18:53,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,725 INFO L356 Elim1Store]: treesize reduction 92, result has 17.1 percent of original size [2022-03-20 12:18:53,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 175 treesize of output 144 [2022-03-20 12:18:53,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,742 INFO L356 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2022-03-20 12:18:53,742 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 113 [2022-03-20 12:18:53,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 113 [2022-03-20 12:18:53,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:53,884 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 12:18:53,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 125 [2022-03-20 12:18:55,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:55,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:55,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:55,801 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 116 [2022-03-20 12:18:55,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:55,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:55,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:55,809 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 12:18:55,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 104 [2022-03-20 12:18:55,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:55,959 INFO L356 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-03-20 12:18:55,959 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 206 treesize of output 179 [2022-03-20 12:18:55,964 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2022-03-20 12:18:55,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:55,988 INFO L356 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-03-20 12:18:55,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 157 [2022-03-20 12:18:56,176 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-20 12:18:56,176 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2022-03-20 12:18:56,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:56,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:56,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:56,184 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 153 [2022-03-20 12:18:56,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:56,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:56,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:56,192 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 12:18:56,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 165 [2022-03-20 12:18:57,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:57,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:57,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:57,983 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 180 [2022-03-20 12:18:58,002 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-20 12:18:58,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 37 [2022-03-20 12:18:58,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:58,010 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 12:18:58,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 207 treesize of output 147 [2022-03-20 12:18:58,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:58,281 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 12:18:58,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 77 [2022-03-20 12:19:03,667 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-03-20 12:19:03,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 10 [2022-03-20 12:19:03,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 221 proven. 883 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-20 12:19:03,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:19:03,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1402 treesize of output 1254