/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/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 18:59:15,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 18:59:15,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 18:59:15,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 18:59:15,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 18:59:15,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 18:59:15,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 18:59:15,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 18:59:15,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 18:59:15,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 18:59:15,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 18:59:15,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 18:59:15,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 18:59:15,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 18:59:15,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 18:59:15,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 18:59:15,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 18:59:15,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 18:59:15,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 18:59:15,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 18:59:15,471 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 18:59:15,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 18:59:15,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 18:59:15,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 18:59:15,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 18:59:15,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 18:59:15,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 18:59:15,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 18:59:15,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 18:59:15,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 18:59:15,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 18:59:15,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 18:59:15,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 18:59:15,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 18:59:15,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 18:59:15,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 18:59:15,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 18:59:15,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 18:59:15,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 18:59:15,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 18:59:15,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 18:59:15,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 18:59:15,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 18:59:15,500 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 18:59:15,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 18:59:15,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 18:59:15,503 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 18:59:15,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 18:59:15,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 18:59:15,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 18:59:15,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 18:59:15,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 18:59:15,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 18:59:15,504 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 18:59:15,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 18:59:15,504 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 18:59:15,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 18:59:15,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 18:59:15,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 18:59:15,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 18:59:15,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 18:59:15,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:59:15,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 18:59:15,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 18:59:15,505 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 18:59:15,505 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 18:59:15,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 18:59:15,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 18:59:15,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 18:59:15,768 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 18:59:15,769 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 18:59:15,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c [2022-03-17 18:59:15,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fe3fe9a3/1e5c2a2b671543a9b6b5c83fdec81aaa/FLAG3c8f5b611 [2022-03-17 18:59:16,278 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 18:59:16,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c [2022-03-17 18:59:16,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fe3fe9a3/1e5c2a2b671543a9b6b5c83fdec81aaa/FLAG3c8f5b611 [2022-03-17 18:59:16,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fe3fe9a3/1e5c2a2b671543a9b6b5c83fdec81aaa [2022-03-17 18:59:16,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 18:59:16,636 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 18:59:16,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 18:59:16,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 18:59:16,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 18:59:16,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:59:16" (1/1) ... [2022-03-17 18:59:16,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a88edd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:16, skipping insertion in model container [2022-03-17 18:59:16,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:59:16" (1/1) ... [2022-03-17 18:59:16,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 18:59:16,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 18:59:17,005 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.11.i.cil-2.c[74369,74382] [2022-03-17 18:59:17,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:59:17,021 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 18:59:17,088 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.11.i.cil-2.c[74369,74382] [2022-03-17 18:59:17,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:59:17,105 INFO L208 MainTranslator]: Completed translation [2022-03-17 18:59:17,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:17 WrapperNode [2022-03-17 18:59:17,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 18:59:17,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 18:59:17,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 18:59:17,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 18:59:17,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:17" (1/1) ... [2022-03-17 18:59:17,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:17" (1/1) ... [2022-03-17 18:59:17,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:17" (1/1) ... [2022-03-17 18:59:17,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:17" (1/1) ... [2022-03-17 18:59:17,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:17" (1/1) ... [2022-03-17 18:59:17,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:17" (1/1) ... [2022-03-17 18:59:17,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:17" (1/1) ... [2022-03-17 18:59:17,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 18:59:17,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 18:59:17,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 18:59:17,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 18:59:17,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:17" (1/1) ... [2022-03-17 18:59:17,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:59:17,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:59:17,289 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) [2022-03-17 18:59:17,359 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 [2022-03-17 18:59:17,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 18:59:17,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 18:59:17,394 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 18:59:17,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 18:59:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 18:59:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 18:59:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 18:59:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 18:59:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 18:59:17,396 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 18:59:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 18:59:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 18:59:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 18:59:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 18:59:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 18:59:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 18:59:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 18:59:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 18:59:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 18:59:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 18:59:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 18:59:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 18:59:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 18:59:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 18:59:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 18:59:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 18:59:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 18:59:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 18:59:17,534 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 18:59:17,536 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 18:59:18,255 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:59:18,552 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 18:59:18,553 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 18:59:18,561 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 18:59:18,566 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 18:59:18,567 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 18:59:18,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:59:18 BoogieIcfgContainer [2022-03-17 18:59:18,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 18:59:18,569 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 18:59:18,569 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 18:59:18,570 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 18:59:18,571 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:59:18" (1/1) ... [2022-03-17 18:59:18,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:59:18 BasicIcfg [2022-03-17 18:59:18,601 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 18:59:18,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 18:59:18,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 18:59:18,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 18:59:18,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:59:16" (1/4) ... [2022-03-17 18:59:18,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47189342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:59:18, skipping insertion in model container [2022-03-17 18:59:18,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:59:17" (2/4) ... [2022-03-17 18:59:18,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47189342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:59:18, skipping insertion in model container [2022-03-17 18:59:18,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:59:18" (3/4) ... [2022-03-17 18:59:18,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47189342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:59:18, skipping insertion in model container [2022-03-17 18:59:18,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:59:18" (4/4) ... [2022-03-17 18:59:18,608 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.11.i.cil-2.cJordan [2022-03-17 18:59:18,612 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 18:59:18,612 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 18:59:18,649 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 18:59:18,653 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2022-03-17 18:59:18,653 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 18:59:18,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 18:59:18,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-17 18:59:18,673 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:18,673 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:18,673 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:18,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:18,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1749012704, now seen corresponding path program 1 times [2022-03-17 18:59:18,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:18,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17411669] [2022-03-17 18:59:18,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:18,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:19,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:19,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:19,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:19,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17411669] [2022-03-17 18:59:19,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17411669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:19,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:19,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:19,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828005455] [2022-03-17 18:59:19,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:19,195 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:19,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:19,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:19,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:19,222 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:21,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:21,458 INFO L93 Difference]: Finished difference Result 191 states and 312 transitions. [2022-03-17 18:59:21,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:21,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-17 18:59:21,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:21,465 INFO L225 Difference]: With dead ends: 191 [2022-03-17 18:59:21,466 INFO L226 Difference]: Without dead ends: 170 [2022-03-17 18:59:21,467 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:21,471 INFO L912 BasicCegarLoop]: 229 mSDtfsCounter, 34 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:21,491 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 607 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:59:21,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-03-17 18:59:21,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 153. [2022-03-17 18:59:21,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.554054054054054) internal successors, (230), 148 states have internal predecessors, (230), 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) [2022-03-17 18:59:21,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 234 transitions. [2022-03-17 18:59:21,537 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 234 transitions. Word has length 42 [2022-03-17 18:59:21,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:21,538 INFO L478 AbstractCegarLoop]: Abstraction has 153 states and 234 transitions. [2022-03-17 18:59:21,538 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:21,538 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 234 transitions. [2022-03-17 18:59:21,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-17 18:59:21,539 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:21,539 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:21,540 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 18:59:21,540 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:21,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:21,540 INFO L85 PathProgramCache]: Analyzing trace with hash -31615949, now seen corresponding path program 1 times [2022-03-17 18:59:21,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:21,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027874894] [2022-03-17 18:59:21,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:21,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:21,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:21,655 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:21,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:21,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027874894] [2022-03-17 18:59:21,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027874894] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:21,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:21,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:21,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133308519] [2022-03-17 18:59:21,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:21,660 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:21,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:21,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:21,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:21,664 INFO L87 Difference]: Start difference. First operand 153 states and 234 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:24,581 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 [] [2022-03-17 18:59:26,598 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 [] [2022-03-17 18:59:27,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:27,231 INFO L93 Difference]: Finished difference Result 272 states and 418 transitions. [2022-03-17 18:59:27,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:27,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 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 55 [2022-03-17 18:59:27,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:27,233 INFO L225 Difference]: With dead ends: 272 [2022-03-17 18:59:27,234 INFO L226 Difference]: Without dead ends: 272 [2022-03-17 18:59:27,234 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:27,234 INFO L912 BasicCegarLoop]: 263 mSDtfsCounter, 147 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:27,235 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 634 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 624 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 18:59:27,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-03-17 18:59:27,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 169. [2022-03-17 18:59:27,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5548780487804879) internal successors, (255), 164 states have internal predecessors, (255), 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) [2022-03-17 18:59:27,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 259 transitions. [2022-03-17 18:59:27,243 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 259 transitions. Word has length 55 [2022-03-17 18:59:27,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:27,243 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 259 transitions. [2022-03-17 18:59:27,243 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 259 transitions. [2022-03-17 18:59:27,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-17 18:59:27,244 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:27,245 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:27,245 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 18:59:27,245 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:27,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:27,245 INFO L85 PathProgramCache]: Analyzing trace with hash 563568954, now seen corresponding path program 1 times [2022-03-17 18:59:27,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:27,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012068743] [2022-03-17 18:59:27,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:27,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:27,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:27,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:27,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:27,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012068743] [2022-03-17 18:59:27,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012068743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:27,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:27,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:27,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225256391] [2022-03-17 18:59:27,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:27,429 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:27,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:27,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:27,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:27,429 INFO L87 Difference]: Start difference. First operand 169 states and 259 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:28,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:31,260 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 [] [2022-03-17 18:59:32,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:32,496 INFO L93 Difference]: Finished difference Result 185 states and 278 transitions. [2022-03-17 18:59:32,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:32,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-03-17 18:59:32,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:32,497 INFO L225 Difference]: With dead ends: 185 [2022-03-17 18:59:32,497 INFO L226 Difference]: Without dead ends: 185 [2022-03-17 18:59:32,498 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:32,498 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:32,499 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 18:59:32,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-03-17 18:59:32,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-03-17 18:59:32,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.548780487804878) internal successors, (254), 164 states have internal predecessors, (254), 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) [2022-03-17 18:59:32,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 258 transitions. [2022-03-17 18:59:32,505 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 258 transitions. Word has length 56 [2022-03-17 18:59:32,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:32,505 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 258 transitions. [2022-03-17 18:59:32,505 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:32,505 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 258 transitions. [2022-03-17 18:59:32,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-17 18:59:32,506 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:32,506 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:32,507 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 18:59:32,507 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:32,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:32,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1102465370, now seen corresponding path program 1 times [2022-03-17 18:59:32,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:32,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727549079] [2022-03-17 18:59:32,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:32,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:32,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:32,625 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:32,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:32,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727549079] [2022-03-17 18:59:32,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727549079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:32,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:32,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:32,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707130977] [2022-03-17 18:59:32,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:32,629 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:32,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:32,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:32,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:32,630 INFO L87 Difference]: Start difference. First operand 169 states and 258 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:34,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:35,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:36,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:38,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:38,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:38,833 INFO L93 Difference]: Finished difference Result 185 states and 277 transitions. [2022-03-17 18:59:38,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:38,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-03-17 18:59:38,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:38,835 INFO L225 Difference]: With dead ends: 185 [2022-03-17 18:59:38,835 INFO L226 Difference]: Without dead ends: 185 [2022-03-17 18:59:38,835 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:38,836 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:38,836 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 18:59:38,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-03-17 18:59:38,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-03-17 18:59:38,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5426829268292683) internal successors, (253), 164 states have internal predecessors, (253), 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) [2022-03-17 18:59:38,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 257 transitions. [2022-03-17 18:59:38,841 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 257 transitions. Word has length 56 [2022-03-17 18:59:38,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:38,841 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 257 transitions. [2022-03-17 18:59:38,841 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:38,841 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 257 transitions. [2022-03-17 18:59:38,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-17 18:59:38,842 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:38,843 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:38,843 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 18:59:38,843 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:38,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:38,843 INFO L85 PathProgramCache]: Analyzing trace with hash 345212314, now seen corresponding path program 1 times [2022-03-17 18:59:38,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:38,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478816358] [2022-03-17 18:59:38,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:38,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:38,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:38,955 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:38,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:38,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478816358] [2022-03-17 18:59:38,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478816358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:38,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:38,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:38,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146344659] [2022-03-17 18:59:38,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:38,956 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:38,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:38,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:38,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:38,958 INFO L87 Difference]: Start difference. First operand 169 states and 257 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:40,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:42,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:44,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:44,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:44,469 INFO L93 Difference]: Finished difference Result 183 states and 274 transitions. [2022-03-17 18:59:44,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:44,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-03-17 18:59:44,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:44,470 INFO L225 Difference]: With dead ends: 183 [2022-03-17 18:59:44,470 INFO L226 Difference]: Without dead ends: 183 [2022-03-17 18:59:44,471 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:44,471 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:44,471 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 18:59:44,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-03-17 18:59:44,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 169. [2022-03-17 18:59:44,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5365853658536586) internal successors, (252), 164 states have internal predecessors, (252), 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) [2022-03-17 18:59:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 256 transitions. [2022-03-17 18:59:44,476 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 256 transitions. Word has length 56 [2022-03-17 18:59:44,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:44,477 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 256 transitions. [2022-03-17 18:59:44,477 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:44,477 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 256 transitions. [2022-03-17 18:59:44,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-17 18:59:44,478 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:44,478 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:44,478 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 18:59:44,478 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:44,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:44,479 INFO L85 PathProgramCache]: Analyzing trace with hash -3480390, now seen corresponding path program 1 times [2022-03-17 18:59:44,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:44,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560800498] [2022-03-17 18:59:44,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:44,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:44,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:44,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:44,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560800498] [2022-03-17 18:59:44,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560800498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:44,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:44,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:44,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073276185] [2022-03-17 18:59:44,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:44,573 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:44,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:44,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:44,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:44,574 INFO L87 Difference]: Start difference. First operand 169 states and 256 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:47,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:48,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:50,001 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 [] [2022-03-17 18:59:50,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:50,450 INFO L93 Difference]: Finished difference Result 287 states and 439 transitions. [2022-03-17 18:59:50,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:50,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-03-17 18:59:50,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:50,452 INFO L225 Difference]: With dead ends: 287 [2022-03-17 18:59:50,452 INFO L226 Difference]: Without dead ends: 287 [2022-03-17 18:59:50,452 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:50,453 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 145 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:50,453 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 18:59:50,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-17 18:59:50,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-03-17 18:59:50,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.543956043956044) internal successors, (281), 182 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 285 transitions. [2022-03-17 18:59:50,460 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 285 transitions. Word has length 56 [2022-03-17 18:59:50,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:50,460 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 285 transitions. [2022-03-17 18:59:50,460 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:50,460 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 285 transitions. [2022-03-17 18:59:50,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-03-17 18:59:50,461 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:50,461 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:50,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 18:59:50,461 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:50,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:50,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1719924627, now seen corresponding path program 1 times [2022-03-17 18:59:50,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:50,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287565325] [2022-03-17 18:59:50,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:50,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:50,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:50,548 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:50,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:50,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287565325] [2022-03-17 18:59:50,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287565325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:50,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:50,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:50,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344402118] [2022-03-17 18:59:50,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:50,549 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:50,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:50,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:50,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:50,550 INFO L87 Difference]: Start difference. First operand 187 states and 285 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:53,401 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 [] [2022-03-17 18:59:54,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:54,709 INFO L93 Difference]: Finished difference Result 287 states and 436 transitions. [2022-03-17 18:59:54,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:54,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 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 57 [2022-03-17 18:59:54,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:54,710 INFO L225 Difference]: With dead ends: 287 [2022-03-17 18:59:54,710 INFO L226 Difference]: Without dead ends: 287 [2022-03-17 18:59:54,711 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:54,711 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 149 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:54,711 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-17 18:59:54,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-17 18:59:54,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-03-17 18:59:54,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5274725274725274) internal successors, (278), 182 states have internal predecessors, (278), 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) [2022-03-17 18:59:54,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 282 transitions. [2022-03-17 18:59:54,717 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 282 transitions. Word has length 57 [2022-03-17 18:59:54,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:54,717 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 282 transitions. [2022-03-17 18:59:54,717 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:54,717 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 282 transitions. [2022-03-17 18:59:54,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-17 18:59:54,717 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:54,718 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:54,718 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 18:59:54,718 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:54,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:54,718 INFO L85 PathProgramCache]: Analyzing trace with hash -9441922, now seen corresponding path program 1 times [2022-03-17 18:59:54,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:54,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636206980] [2022-03-17 18:59:54,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:54,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:54,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:54,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:54,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636206980] [2022-03-17 18:59:54,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636206980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:54,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:54,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:54,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731394010] [2022-03-17 18:59:54,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:54,846 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:54,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:54,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:54,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:54,847 INFO L87 Difference]: Start difference. First operand 187 states and 282 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:56,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:57,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:58,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:59,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:59,242 INFO L93 Difference]: Finished difference Result 200 states and 298 transitions. [2022-03-17 18:59:59,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:59,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 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 58 [2022-03-17 18:59:59,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:59,244 INFO L225 Difference]: With dead ends: 200 [2022-03-17 18:59:59,244 INFO L226 Difference]: Without dead ends: 200 [2022-03-17 18:59:59,244 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:59,245 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 20 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:59,245 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 18:59:59,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-03-17 18:59:59,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-03-17 18:59:59,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.521978021978022) internal successors, (277), 182 states have internal predecessors, (277), 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) [2022-03-17 18:59:59,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2022-03-17 18:59:59,248 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 58 [2022-03-17 18:59:59,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:59,248 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2022-03-17 18:59:59,248 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:59,249 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2022-03-17 18:59:59,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-17 18:59:59,249 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:59,249 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:59,249 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 18:59:59,249 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:59,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:59,250 INFO L85 PathProgramCache]: Analyzing trace with hash -553280842, now seen corresponding path program 1 times [2022-03-17 18:59:59,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:59,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445472155] [2022-03-17 18:59:59,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:59,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:59,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:59,332 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:59:59,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:59,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445472155] [2022-03-17 18:59:59,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445472155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:59,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:59,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:59,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144302282] [2022-03-17 18:59:59,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:59,333 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:59,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:59,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:59,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:59,334 INFO L87 Difference]: Start difference. First operand 187 states and 281 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:00,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:02,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:04,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:05,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:05,643 INFO L93 Difference]: Finished difference Result 190 states and 284 transitions. [2022-03-17 19:00:05,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:05,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 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 59 [2022-03-17 19:00:05,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:05,645 INFO L225 Difference]: With dead ends: 190 [2022-03-17 19:00:05,645 INFO L226 Difference]: Without dead ends: 190 [2022-03-17 19:00:05,645 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:05,645 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:05,645 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 19:00:05,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-03-17 19:00:05,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2022-03-17 19:00:05,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5164835164835164) internal successors, (276), 182 states have internal predecessors, (276), 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) [2022-03-17 19:00:05,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 280 transitions. [2022-03-17 19:00:05,649 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 280 transitions. Word has length 59 [2022-03-17 19:00:05,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:05,649 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 280 transitions. [2022-03-17 19:00:05,649 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:05,649 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 280 transitions. [2022-03-17 19:00:05,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-17 19:00:05,650 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:05,650 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:05,650 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 19:00:05,650 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:05,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:05,650 INFO L85 PathProgramCache]: Analyzing trace with hash -186558363, now seen corresponding path program 1 times [2022-03-17 19:00:05,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:05,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900661240] [2022-03-17 19:00:05,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:05,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:05,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:00:05,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:05,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900661240] [2022-03-17 19:00:05,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900661240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:05,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:05,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:05,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347513724] [2022-03-17 19:00:05,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:05,733 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:05,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:05,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:05,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:05,733 INFO L87 Difference]: Start difference. First operand 187 states and 280 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:07,748 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 [] [2022-03-17 19:00:08,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:08,207 INFO L93 Difference]: Finished difference Result 305 states and 461 transitions. [2022-03-17 19:00:08,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:08,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 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 59 [2022-03-17 19:00:08,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:08,214 INFO L225 Difference]: With dead ends: 305 [2022-03-17 19:00:08,214 INFO L226 Difference]: Without dead ends: 305 [2022-03-17 19:00:08,214 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:08,216 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 134 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:08,217 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 344 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 19:00:08,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-03-17 19:00:08,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 215. [2022-03-17 19:00:08,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5380952380952382) internal successors, (323), 210 states have internal predecessors, (323), 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) [2022-03-17 19:00:08,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 327 transitions. [2022-03-17 19:00:08,226 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 327 transitions. Word has length 59 [2022-03-17 19:00:08,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:08,227 INFO L478 AbstractCegarLoop]: Abstraction has 215 states and 327 transitions. [2022-03-17 19:00:08,227 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:08,227 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 327 transitions. [2022-03-17 19:00:08,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-17 19:00:08,227 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:08,227 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:08,227 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 19:00:08,228 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:08,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:08,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1871719059, now seen corresponding path program 1 times [2022-03-17 19:00:08,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:08,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694463530] [2022-03-17 19:00:08,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:08,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:08,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:08,360 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:00:08,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:08,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694463530] [2022-03-17 19:00:08,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694463530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:08,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:08,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:08,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542766969] [2022-03-17 19:00:08,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:08,361 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:08,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:08,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:08,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:08,362 INFO L87 Difference]: Start difference. First operand 215 states and 327 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:09,604 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 [] [2022-03-17 19:00:11,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:14,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:14,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:14,534 INFO L93 Difference]: Finished difference Result 257 states and 388 transitions. [2022-03-17 19:00:14,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:14,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 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 60 [2022-03-17 19:00:14,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:14,535 INFO L225 Difference]: With dead ends: 257 [2022-03-17 19:00:14,535 INFO L226 Difference]: Without dead ends: 257 [2022-03-17 19:00:14,535 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:14,536 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 31 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:14,536 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 505 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 394 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 19:00:14,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-17 19:00:14,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 237. [2022-03-17 19:00:14,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.543103448275862) internal successors, (358), 232 states have internal predecessors, (358), 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) [2022-03-17 19:00:14,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 362 transitions. [2022-03-17 19:00:14,540 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 362 transitions. Word has length 60 [2022-03-17 19:00:14,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:14,540 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 362 transitions. [2022-03-17 19:00:14,540 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:14,540 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 362 transitions. [2022-03-17 19:00:14,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-17 19:00:14,540 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:14,541 INFO L500 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] [2022-03-17 19:00:14,541 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 19:00:14,541 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:14,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:14,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1940068921, now seen corresponding path program 1 times [2022-03-17 19:00:14,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:14,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618044461] [2022-03-17 19:00:14,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:14,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:14,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:14,723 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-17 19:00:14,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:14,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618044461] [2022-03-17 19:00:14,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618044461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:14,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:14,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:14,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595829699] [2022-03-17 19:00:14,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:14,724 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:14,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:14,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:14,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:14,725 INFO L87 Difference]: Start difference. First operand 237 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:16,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:18,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:19,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:19,687 INFO L93 Difference]: Finished difference Result 250 states and 377 transitions. [2022-03-17 19:00:19,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:19,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 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 74 [2022-03-17 19:00:19,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:19,689 INFO L225 Difference]: With dead ends: 250 [2022-03-17 19:00:19,689 INFO L226 Difference]: Without dead ends: 250 [2022-03-17 19:00:19,689 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:19,689 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:19,689 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 576 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 400 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 19:00:19,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-03-17 19:00:19,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 237. [2022-03-17 19:00:19,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5387931034482758) internal successors, (357), 232 states have internal predecessors, (357), 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) [2022-03-17 19:00:19,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 361 transitions. [2022-03-17 19:00:19,721 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 361 transitions. Word has length 74 [2022-03-17 19:00:19,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:19,721 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 361 transitions. [2022-03-17 19:00:19,721 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:19,721 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 361 transitions. [2022-03-17 19:00:19,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-17 19:00:19,722 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:19,722 INFO L500 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] [2022-03-17 19:00:19,722 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 19:00:19,722 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:19,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:19,722 INFO L85 PathProgramCache]: Analyzing trace with hash -534019623, now seen corresponding path program 1 times [2022-03-17 19:00:19,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:19,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513908528] [2022-03-17 19:00:19,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:19,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:19,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:19,882 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:00:19,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:19,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513908528] [2022-03-17 19:00:19,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513908528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:19,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:19,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:19,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582000491] [2022-03-17 19:00:19,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:19,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:19,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:19,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:19,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:19,884 INFO L87 Difference]: Start difference. First operand 237 states and 361 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:22,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:24,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:24,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:24,846 INFO L93 Difference]: Finished difference Result 255 states and 384 transitions. [2022-03-17 19:00:24,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:24,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 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 74 [2022-03-17 19:00:24,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:24,847 INFO L225 Difference]: With dead ends: 255 [2022-03-17 19:00:24,847 INFO L226 Difference]: Without dead ends: 255 [2022-03-17 19:00:24,847 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:24,848 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 35 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:24,848 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 19:00:24,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-17 19:00:24,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2022-03-17 19:00:24,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5344827586206897) internal successors, (356), 232 states have internal predecessors, (356), 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) [2022-03-17 19:00:24,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 360 transitions. [2022-03-17 19:00:24,851 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 360 transitions. Word has length 74 [2022-03-17 19:00:24,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:24,852 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 360 transitions. [2022-03-17 19:00:24,852 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:24,852 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 360 transitions. [2022-03-17 19:00:24,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-17 19:00:24,852 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:24,852 INFO L500 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] [2022-03-17 19:00:24,852 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 19:00:24,852 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:24,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:24,853 INFO L85 PathProgramCache]: Analyzing trace with hash -801809009, now seen corresponding path program 1 times [2022-03-17 19:00:24,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:24,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353925665] [2022-03-17 19:00:24,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:24,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:24,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:24,959 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-17 19:00:24,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:24,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353925665] [2022-03-17 19:00:24,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353925665] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:24,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:24,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 19:00:24,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990634555] [2022-03-17 19:00:24,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:24,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 19:00:24,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:24,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 19:00:24,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:24,960 INFO L87 Difference]: Start difference. First operand 237 states and 360 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:27,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:29,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:30,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:30,268 INFO L93 Difference]: Finished difference Result 246 states and 371 transitions. [2022-03-17 19:00:30,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 19:00:30,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 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 75 [2022-03-17 19:00:30,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:30,269 INFO L225 Difference]: With dead ends: 246 [2022-03-17 19:00:30,269 INFO L226 Difference]: Without dead ends: 246 [2022-03-17 19:00:30,269 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-17 19:00:30,270 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:30,270 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 633 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 19:00:30,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-03-17 19:00:30,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-03-17 19:00:30,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5228215767634854) internal successors, (367), 241 states have internal predecessors, (367), 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) [2022-03-17 19:00:30,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 371 transitions. [2022-03-17 19:00:30,273 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 371 transitions. Word has length 75 [2022-03-17 19:00:30,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:30,274 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 371 transitions. [2022-03-17 19:00:30,274 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:30,274 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 371 transitions. [2022-03-17 19:00:30,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-17 19:00:30,274 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:30,274 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:30,274 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 19:00:30,275 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:30,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:30,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1681571247, now seen corresponding path program 1 times [2022-03-17 19:00:30,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:30,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499549694] [2022-03-17 19:00:30,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:30,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:30,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:00:30,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:30,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499549694] [2022-03-17 19:00:30,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499549694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:30,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:30,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:30,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607650829] [2022-03-17 19:00:30,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:30,363 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:30,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:30,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:30,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:30,363 INFO L87 Difference]: Start difference. First operand 246 states and 371 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:33,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:35,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:36,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:36,192 INFO L93 Difference]: Finished difference Result 273 states and 405 transitions. [2022-03-17 19:00:36,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:36,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 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 75 [2022-03-17 19:00:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:36,194 INFO L225 Difference]: With dead ends: 273 [2022-03-17 19:00:36,194 INFO L226 Difference]: Without dead ends: 273 [2022-03-17 19:00:36,194 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:36,194 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:36,195 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 19:00:36,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-03-17 19:00:36,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 246. [2022-03-17 19:00:36,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5186721991701244) internal successors, (366), 241 states have internal predecessors, (366), 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) [2022-03-17 19:00:36,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 370 transitions. [2022-03-17 19:00:36,200 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 370 transitions. Word has length 75 [2022-03-17 19:00:36,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:36,200 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 370 transitions. [2022-03-17 19:00:36,200 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:36,200 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 370 transitions. [2022-03-17 19:00:36,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-17 19:00:36,201 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:36,201 INFO L500 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] [2022-03-17 19:00:36,201 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 19:00:36,201 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:36,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:36,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1399153773, now seen corresponding path program 1 times [2022-03-17 19:00:36,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:36,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698543367] [2022-03-17 19:00:36,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:36,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:36,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:36,307 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:00:36,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:36,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698543367] [2022-03-17 19:00:36,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698543367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:36,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:36,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:36,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136612313] [2022-03-17 19:00:36,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:36,308 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:36,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:36,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:36,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:36,309 INFO L87 Difference]: Start difference. First operand 246 states and 370 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:37,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:38,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:40,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:42,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:42,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:42,588 INFO L93 Difference]: Finished difference Result 355 states and 531 transitions. [2022-03-17 19:00:42,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:42,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-03-17 19:00:42,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:42,590 INFO L225 Difference]: With dead ends: 355 [2022-03-17 19:00:42,590 INFO L226 Difference]: Without dead ends: 355 [2022-03-17 19:00:42,590 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:42,591 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 148 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:42,591 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 19:00:42,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-03-17 19:00:42,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 246. [2022-03-17 19:00:42,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5020746887966805) internal successors, (362), 241 states have internal predecessors, (362), 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) [2022-03-17 19:00:42,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 366 transitions. [2022-03-17 19:00:42,595 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 366 transitions. Word has length 77 [2022-03-17 19:00:42,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:42,595 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 366 transitions. [2022-03-17 19:00:42,596 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:42,596 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 366 transitions. [2022-03-17 19:00:42,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-17 19:00:42,598 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:42,598 INFO L500 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] [2022-03-17 19:00:42,598 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 19:00:42,598 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:42,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:42,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1192836383, now seen corresponding path program 1 times [2022-03-17 19:00:42,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:42,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027411160] [2022-03-17 19:00:42,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:42,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:42,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:42,702 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 19:00:42,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:42,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027411160] [2022-03-17 19:00:42,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027411160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:42,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:42,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:42,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785252618] [2022-03-17 19:00:42,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:42,703 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:42,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:42,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:42,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:42,704 INFO L87 Difference]: Start difference. First operand 246 states and 366 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:45,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:47,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:48,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:48,354 INFO L93 Difference]: Finished difference Result 355 states and 527 transitions. [2022-03-17 19:00:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:48,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-17 19:00:48,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:48,356 INFO L225 Difference]: With dead ends: 355 [2022-03-17 19:00:48,356 INFO L226 Difference]: Without dead ends: 355 [2022-03-17 19:00:48,356 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:48,356 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 146 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:48,356 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 19:00:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-03-17 19:00:48,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 246. [2022-03-17 19:00:48,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.4854771784232366) internal successors, (358), 241 states have internal predecessors, (358), 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) [2022-03-17 19:00:48,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 362 transitions. [2022-03-17 19:00:48,360 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 362 transitions. Word has length 78 [2022-03-17 19:00:48,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:48,360 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 362 transitions. [2022-03-17 19:00:48,361 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:48,361 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 362 transitions. [2022-03-17 19:00:48,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-17 19:00:48,361 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:48,361 INFO L500 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] [2022-03-17 19:00:48,361 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 19:00:48,361 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:48,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:48,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1089053230, now seen corresponding path program 1 times [2022-03-17 19:00:48,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:48,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841160062] [2022-03-17 19:00:48,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:48,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:48,505 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:00:48,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:48,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841160062] [2022-03-17 19:00:48,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841160062] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:48,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:48,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:48,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671768400] [2022-03-17 19:00:48,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:48,507 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:48,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:48,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:48,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:48,507 INFO L87 Difference]: Start difference. First operand 246 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:50,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:51,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:53,129 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 [] [2022-03-17 19:00:53,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:53,577 INFO L93 Difference]: Finished difference Result 353 states and 517 transitions. [2022-03-17 19:00:53,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:53,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-17 19:00:53,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:53,579 INFO L225 Difference]: With dead ends: 353 [2022-03-17 19:00:53,579 INFO L226 Difference]: Without dead ends: 353 [2022-03-17 19:00:53,579 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:53,579 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 90 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:53,579 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 513 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 19:00:53,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-03-17 19:00:53,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 277. [2022-03-17 19:00:53,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.4926470588235294) internal successors, (406), 272 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:53,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 410 transitions. [2022-03-17 19:00:53,583 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 410 transitions. Word has length 82 [2022-03-17 19:00:53,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:53,584 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 410 transitions. [2022-03-17 19:00:53,584 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:53,584 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 410 transitions. [2022-03-17 19:00:53,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-17 19:00:53,584 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:53,584 INFO L500 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] [2022-03-17 19:00:53,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 19:00:53,585 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:53,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:53,585 INFO L85 PathProgramCache]: Analyzing trace with hash -63561231, now seen corresponding path program 1 times [2022-03-17 19:00:53,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:53,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841810454] [2022-03-17 19:00:53,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:53,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:53,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:53,683 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:00:53,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:53,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841810454] [2022-03-17 19:00:53,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841810454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:53,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:53,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:53,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211937868] [2022-03-17 19:00:53,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:53,684 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:53,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:53,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:53,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:53,685 INFO L87 Difference]: Start difference. First operand 277 states and 410 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:55,978 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 [] [2022-03-17 19:00:58,676 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 [] [2022-03-17 19:00:59,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:59,080 INFO L93 Difference]: Finished difference Result 335 states and 491 transitions. [2022-03-17 19:00:59,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:59,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-17 19:00:59,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:59,082 INFO L225 Difference]: With dead ends: 335 [2022-03-17 19:00:59,082 INFO L226 Difference]: Without dead ends: 335 [2022-03-17 19:00:59,082 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:59,082 INFO L912 BasicCegarLoop]: 246 mSDtfsCounter, 37 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:59,082 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 605 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 467 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 19:00:59,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-03-17 19:00:59,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 301. [2022-03-17 19:00:59,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4966216216216217) internal successors, (443), 296 states have internal predecessors, (443), 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) [2022-03-17 19:00:59,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 447 transitions. [2022-03-17 19:00:59,087 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 447 transitions. Word has length 82 [2022-03-17 19:00:59,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:59,087 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 447 transitions. [2022-03-17 19:00:59,087 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 447 transitions. [2022-03-17 19:00:59,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-17 19:00:59,088 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:59,088 INFO L500 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] [2022-03-17 19:00:59,088 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 19:00:59,088 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:59,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:59,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2130514276, now seen corresponding path program 1 times [2022-03-17 19:00:59,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:59,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997262821] [2022-03-17 19:00:59,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:59,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:59,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:59,213 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:00:59,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:59,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997262821] [2022-03-17 19:00:59,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997262821] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:59,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:59,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:59,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991133105] [2022-03-17 19:00:59,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:59,214 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:59,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:59,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:59,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:59,214 INFO L87 Difference]: Start difference. First operand 301 states and 447 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:01,548 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 [] [2022-03-17 19:01:02,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:04,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:05,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:05,192 INFO L93 Difference]: Finished difference Result 400 states and 594 transitions. [2022-03-17 19:01:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:05,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-17 19:01:05,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:05,194 INFO L225 Difference]: With dead ends: 400 [2022-03-17 19:01:05,194 INFO L226 Difference]: Without dead ends: 400 [2022-03-17 19:01:05,194 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:01:05,195 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 149 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:05,195 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 346 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 471 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 19:01:05,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-03-17 19:01:05,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 301. [2022-03-17 19:01:05,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4763513513513513) internal successors, (437), 296 states have internal predecessors, (437), 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) [2022-03-17 19:01:05,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 441 transitions. [2022-03-17 19:01:05,202 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 441 transitions. Word has length 87 [2022-03-17 19:01:05,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:05,202 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 441 transitions. [2022-03-17 19:01:05,202 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:05,203 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 441 transitions. [2022-03-17 19:01:05,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-17 19:01:05,203 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:05,204 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:05,204 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 19:01:05,204 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:05,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:05,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1881310108, now seen corresponding path program 1 times [2022-03-17 19:01:05,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:05,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565691109] [2022-03-17 19:01:05,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:05,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:05,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:01:05,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:05,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565691109] [2022-03-17 19:01:05,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565691109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:05,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:05,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:05,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079763696] [2022-03-17 19:01:05,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:05,319 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:05,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:05,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:05,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:05,323 INFO L87 Difference]: Start difference. First operand 301 states and 441 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:07,243 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 [] [2022-03-17 19:01:09,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:09,519 INFO L93 Difference]: Finished difference Result 429 states and 638 transitions. [2022-03-17 19:01:09,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:09,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-03-17 19:01:09,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:09,520 INFO L225 Difference]: With dead ends: 429 [2022-03-17 19:01:09,520 INFO L226 Difference]: Without dead ends: 429 [2022-03-17 19:01:09,521 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:01:09,521 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 120 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:09,521 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 19:01:09,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-17 19:01:09,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 351. [2022-03-17 19:01:09,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 346 states have (on average 1.5115606936416186) internal successors, (523), 346 states have internal predecessors, (523), 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) [2022-03-17 19:01:09,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 527 transitions. [2022-03-17 19:01:09,526 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 527 transitions. Word has length 88 [2022-03-17 19:01:09,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:09,526 INFO L478 AbstractCegarLoop]: Abstraction has 351 states and 527 transitions. [2022-03-17 19:01:09,526 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:09,526 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 527 transitions. [2022-03-17 19:01:09,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-17 19:01:09,527 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:09,528 INFO L500 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] [2022-03-17 19:01:09,528 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 19:01:09,528 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:09,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:09,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1779498248, now seen corresponding path program 1 times [2022-03-17 19:01:09,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:09,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588186130] [2022-03-17 19:01:09,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:09,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:09,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:01:09,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:09,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588186130] [2022-03-17 19:01:09,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588186130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:09,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:09,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:09,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388587202] [2022-03-17 19:01:09,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:09,639 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:09,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:09,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:09,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:09,640 INFO L87 Difference]: Start difference. First operand 351 states and 527 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:12,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:12,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:12,810 INFO L93 Difference]: Finished difference Result 409 states and 609 transitions. [2022-03-17 19:01:12,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:12,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-03-17 19:01:12,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:12,812 INFO L225 Difference]: With dead ends: 409 [2022-03-17 19:01:12,812 INFO L226 Difference]: Without dead ends: 409 [2022-03-17 19:01:12,812 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:01:12,812 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 67 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:12,812 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 483 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 19:01:12,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-03-17 19:01:12,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 362. [2022-03-17 19:01:12,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5210084033613445) internal successors, (543), 357 states have internal predecessors, (543), 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) [2022-03-17 19:01:12,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 547 transitions. [2022-03-17 19:01:12,817 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 547 transitions. Word has length 89 [2022-03-17 19:01:12,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:12,817 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 547 transitions. [2022-03-17 19:01:12,817 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:12,817 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 547 transitions. [2022-03-17 19:01:12,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-17 19:01:12,818 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:12,818 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 19:01:12,818 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 19:01:12,818 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:12,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:12,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1616616152, now seen corresponding path program 1 times [2022-03-17 19:01:12,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:12,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625435462] [2022-03-17 19:01:12,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:12,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:12,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:01:12,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:12,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625435462] [2022-03-17 19:01:12,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625435462] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:12,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:12,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:12,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137521595] [2022-03-17 19:01:12,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:12,958 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:12,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:12,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:12,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:12,959 INFO L87 Difference]: Start difference. First operand 362 states and 547 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:16,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:17,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:17,296 INFO L93 Difference]: Finished difference Result 451 states and 675 transitions. [2022-03-17 19:01:17,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:17,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-03-17 19:01:17,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:17,297 INFO L225 Difference]: With dead ends: 451 [2022-03-17 19:01:17,297 INFO L226 Difference]: Without dead ends: 451 [2022-03-17 19:01:17,298 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:01:17,298 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 142 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:17,298 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 19:01:17,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-03-17 19:01:17,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 362. [2022-03-17 19:01:17,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5070028011204482) internal successors, (538), 357 states have internal predecessors, (538), 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) [2022-03-17 19:01:17,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 542 transitions. [2022-03-17 19:01:17,303 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 542 transitions. Word has length 96 [2022-03-17 19:01:17,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:17,303 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 542 transitions. [2022-03-17 19:01:17,303 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:17,303 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 542 transitions. [2022-03-17 19:01:17,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-17 19:01:17,304 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:17,304 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:17,304 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 19:01:17,304 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:17,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:17,305 INFO L85 PathProgramCache]: Analyzing trace with hash -368196464, now seen corresponding path program 1 times [2022-03-17 19:01:17,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:17,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930030295] [2022-03-17 19:01:17,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:17,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:17,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:17,424 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:01:17,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:17,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930030295] [2022-03-17 19:01:17,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930030295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:17,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:17,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:17,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919825147] [2022-03-17 19:01:17,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:17,425 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:17,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:17,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:17,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:17,426 INFO L87 Difference]: Start difference. First operand 362 states and 542 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:20,465 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 [] [2022-03-17 19:01:22,484 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 [] [2022-03-17 19:01:22,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:22,894 INFO L93 Difference]: Finished difference Result 441 states and 656 transitions. [2022-03-17 19:01:22,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:22,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-17 19:01:22,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:22,895 INFO L225 Difference]: With dead ends: 441 [2022-03-17 19:01:22,895 INFO L226 Difference]: Without dead ends: 441 [2022-03-17 19:01:22,896 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:01:22,896 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 139 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:22,896 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 368 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 19:01:22,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-03-17 19:01:22,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 362. [2022-03-17 19:01:22,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4901960784313726) internal successors, (532), 357 states have internal predecessors, (532), 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) [2022-03-17 19:01:22,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 536 transitions. [2022-03-17 19:01:22,900 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 536 transitions. Word has length 97 [2022-03-17 19:01:22,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:22,901 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 536 transitions. [2022-03-17 19:01:22,901 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:22,901 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 536 transitions. [2022-03-17 19:01:22,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-17 19:01:22,902 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:22,902 INFO L500 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] [2022-03-17 19:01:22,902 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 19:01:22,902 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:22,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:22,902 INFO L85 PathProgramCache]: Analyzing trace with hash -102121424, now seen corresponding path program 1 times [2022-03-17 19:01:22,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:22,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26093231] [2022-03-17 19:01:22,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:22,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:22,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:23,002 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 19:01:23,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:23,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26093231] [2022-03-17 19:01:23,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26093231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:23,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:23,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:23,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001575590] [2022-03-17 19:01:23,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:23,002 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:23,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:23,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:23,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:23,003 INFO L87 Difference]: Start difference. First operand 362 states and 536 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:24,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:25,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:27,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:28,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:28,250 INFO L93 Difference]: Finished difference Result 397 states and 582 transitions. [2022-03-17 19:01:28,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:28,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 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 104 [2022-03-17 19:01:28,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:28,253 INFO L225 Difference]: With dead ends: 397 [2022-03-17 19:01:28,253 INFO L226 Difference]: Without dead ends: 397 [2022-03-17 19:01:28,253 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:01:28,253 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 73 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:28,253 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 515 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 19:01:28,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-03-17 19:01:28,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 362. [2022-03-17 19:01:28,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4873949579831933) internal successors, (531), 357 states have internal predecessors, (531), 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) [2022-03-17 19:01:28,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 535 transitions. [2022-03-17 19:01:28,257 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 535 transitions. Word has length 104 [2022-03-17 19:01:28,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:28,258 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 535 transitions. [2022-03-17 19:01:28,258 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:28,258 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 535 transitions. [2022-03-17 19:01:28,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-17 19:01:28,258 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:28,259 INFO L500 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] [2022-03-17 19:01:28,259 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 19:01:28,259 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:28,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:28,259 INFO L85 PathProgramCache]: Analyzing trace with hash -81784049, now seen corresponding path program 1 times [2022-03-17 19:01:28,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:28,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179582152] [2022-03-17 19:01:28,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:28,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:28,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-17 19:01:28,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:28,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179582152] [2022-03-17 19:01:28,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179582152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:28,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:28,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:01:28,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253421232] [2022-03-17 19:01:28,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:28,377 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:01:28,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:28,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:01:28,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:01:28,378 INFO L87 Difference]: Start difference. First operand 362 states and 535 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:30,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:32,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:32,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:32,861 INFO L93 Difference]: Finished difference Result 693 states and 1026 transitions. [2022-03-17 19:01:32,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:01:32,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 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 104 [2022-03-17 19:01:32,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:32,863 INFO L225 Difference]: With dead ends: 693 [2022-03-17 19:01:32,863 INFO L226 Difference]: Without dead ends: 693 [2022-03-17 19:01:32,863 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:01:32,864 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:32,864 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 435 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 19:01:32,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-03-17 19:01:32,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2022-03-17 19:01:32,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 688 states have (on average 1.4854651162790697) internal successors, (1022), 688 states have internal predecessors, (1022), 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) [2022-03-17 19:01:32,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1026 transitions. [2022-03-17 19:01:32,870 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1026 transitions. Word has length 104 [2022-03-17 19:01:32,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:32,871 INFO L478 AbstractCegarLoop]: Abstraction has 693 states and 1026 transitions. [2022-03-17 19:01:32,871 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:32,872 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1026 transitions. [2022-03-17 19:01:32,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-17 19:01:32,874 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:32,874 INFO L500 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] [2022-03-17 19:01:32,874 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 19:01:32,874 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:32,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:32,874 INFO L85 PathProgramCache]: Analyzing trace with hash -2012403154, now seen corresponding path program 1 times [2022-03-17 19:01:32,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:32,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540474390] [2022-03-17 19:01:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:32,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:32,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:32,997 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-17 19:01:32,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:32,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540474390] [2022-03-17 19:01:32,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540474390] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:32,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:32,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:01:32,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738805178] [2022-03-17 19:01:32,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:32,998 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:01:32,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:32,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:01:32,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:01:32,998 INFO L87 Difference]: Start difference. First operand 693 states and 1026 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:34,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:37,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:37,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:37,255 INFO L93 Difference]: Finished difference Result 720 states and 1061 transitions. [2022-03-17 19:01:37,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:01:37,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-17 19:01:37,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:37,257 INFO L225 Difference]: With dead ends: 720 [2022-03-17 19:01:37,257 INFO L226 Difference]: Without dead ends: 720 [2022-03-17 19:01:37,257 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:01:37,257 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:37,258 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 19:01:37,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-03-17 19:01:37,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2022-03-17 19:01:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.4783216783216784) internal successors, (1057), 715 states have internal predecessors, (1057), 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) [2022-03-17 19:01:37,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1061 transitions. [2022-03-17 19:01:37,267 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1061 transitions. Word has length 104 [2022-03-17 19:01:37,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:37,267 INFO L478 AbstractCegarLoop]: Abstraction has 720 states and 1061 transitions. [2022-03-17 19:01:37,267 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:37,267 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1061 transitions. [2022-03-17 19:01:37,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-17 19:01:37,268 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:37,269 INFO L500 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] [2022-03-17 19:01:37,269 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 19:01:37,269 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:37,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:37,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1592886323, now seen corresponding path program 1 times [2022-03-17 19:01:37,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:37,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969348082] [2022-03-17 19:01:37,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:37,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:37,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:37,345 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-03-17 19:01:37,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:37,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969348082] [2022-03-17 19:01:37,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969348082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:37,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:37,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:01:37,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087053028] [2022-03-17 19:01:37,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:37,346 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:01:37,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:37,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:01:37,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:01:37,347 INFO L87 Difference]: Start difference. First operand 720 states and 1061 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 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) [2022-03-17 19:01:39,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:41,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:42,873 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 [] [2022-03-17 19:01:43,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:43,098 INFO L93 Difference]: Finished difference Result 722 states and 1063 transitions. [2022-03-17 19:01:43,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:01:43,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 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 104 [2022-03-17 19:01:43,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:43,100 INFO L225 Difference]: With dead ends: 722 [2022-03-17 19:01:43,100 INFO L226 Difference]: Without dead ends: 722 [2022-03-17 19:01:43,100 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:01:43,101 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:43,101 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 19:01:43,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-03-17 19:01:43,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2022-03-17 19:01:43,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 717 states have (on average 1.4769874476987448) internal successors, (1059), 717 states have internal predecessors, (1059), 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) [2022-03-17 19:01:43,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1063 transitions. [2022-03-17 19:01:43,131 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1063 transitions. Word has length 104 [2022-03-17 19:01:43,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:43,132 INFO L478 AbstractCegarLoop]: Abstraction has 722 states and 1063 transitions. [2022-03-17 19:01:43,132 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 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) [2022-03-17 19:01:43,132 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1063 transitions. [2022-03-17 19:01:43,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-03-17 19:01:43,133 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:43,133 INFO L500 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] [2022-03-17 19:01:43,133 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 19:01:43,133 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:43,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:43,134 INFO L85 PathProgramCache]: Analyzing trace with hash -276398424, now seen corresponding path program 1 times [2022-03-17 19:01:43,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:43,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051045395] [2022-03-17 19:01:43,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:43,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:43,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:43,227 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 19:01:43,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:43,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051045395] [2022-03-17 19:01:43,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051045395] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:43,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:43,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:01:43,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061557358] [2022-03-17 19:01:43,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:43,228 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:01:43,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:43,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:01:43,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:01:43,229 INFO L87 Difference]: Start difference. First operand 722 states and 1063 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:44,438 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 [] [2022-03-17 19:01:46,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:47,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:47,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:47,821 INFO L93 Difference]: Finished difference Result 1058 states and 1566 transitions. [2022-03-17 19:01:47,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:01:47,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-03-17 19:01:47,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:47,823 INFO L225 Difference]: With dead ends: 1058 [2022-03-17 19:01:47,824 INFO L226 Difference]: Without dead ends: 1058 [2022-03-17 19:01:47,824 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:01:47,824 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:47,824 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 379 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 19:01:47,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-03-17 19:01:47,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1056. [2022-03-17 19:01:47,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1051 states have (on average 1.4852521408182684) internal successors, (1561), 1051 states have internal predecessors, (1561), 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) [2022-03-17 19:01:47,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1565 transitions. [2022-03-17 19:01:47,840 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1565 transitions. Word has length 106 [2022-03-17 19:01:47,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:47,840 INFO L478 AbstractCegarLoop]: Abstraction has 1056 states and 1565 transitions. [2022-03-17 19:01:47,840 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:47,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1565 transitions. [2022-03-17 19:01:47,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-17 19:01:47,841 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:47,841 INFO L500 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] [2022-03-17 19:01:47,842 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 19:01:47,842 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:47,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:47,842 INFO L85 PathProgramCache]: Analyzing trace with hash 55993698, now seen corresponding path program 1 times [2022-03-17 19:01:47,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:47,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725655800] [2022-03-17 19:01:47,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:47,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:47,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:47,931 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 19:01:47,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:47,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725655800] [2022-03-17 19:01:47,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725655800] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:47,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:47,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:01:47,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156211044] [2022-03-17 19:01:47,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:47,932 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:01:47,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:47,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:01:47,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:01:47,933 INFO L87 Difference]: Start difference. First operand 1056 states and 1565 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) [2022-03-17 19:01:49,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:51,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:51,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:51,594 INFO L93 Difference]: Finished difference Result 1392 states and 2054 transitions. [2022-03-17 19:01:51,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:01:51,594 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 113 [2022-03-17 19:01:51,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:51,597 INFO L225 Difference]: With dead ends: 1392 [2022-03-17 19:01:51,597 INFO L226 Difference]: Without dead ends: 1392 [2022-03-17 19:01:51,598 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:01:51,598 INFO L912 BasicCegarLoop]: 382 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:51,598 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 576 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-17 19:01:51,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-03-17 19:01:51,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1390. [2022-03-17 19:01:51,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1385 states have (on average 1.47942238267148) internal successors, (2049), 1385 states have internal predecessors, (2049), 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) [2022-03-17 19:01:51,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2053 transitions. [2022-03-17 19:01:51,640 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2053 transitions. Word has length 113 [2022-03-17 19:01:51,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:51,640 INFO L478 AbstractCegarLoop]: Abstraction has 1390 states and 2053 transitions. [2022-03-17 19:01:51,640 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) [2022-03-17 19:01:51,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2053 transitions. [2022-03-17 19:01:51,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-17 19:01:51,642 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:51,642 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 19:01:51,642 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 19:01:51,642 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:51,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:51,643 INFO L85 PathProgramCache]: Analyzing trace with hash -141195902, now seen corresponding path program 1 times [2022-03-17 19:01:51,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:51,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219161839] [2022-03-17 19:01:51,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:51,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 19:01:51,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:51,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219161839] [2022-03-17 19:01:51,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219161839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:51,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:51,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:51,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928262819] [2022-03-17 19:01:51,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:51,738 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:51,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:51,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:51,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:51,738 INFO L87 Difference]: Start difference. First operand 1390 states and 2053 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:52,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:54,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:54,905 INFO L93 Difference]: Finished difference Result 1700 states and 2501 transitions. [2022-03-17 19:01:54,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:54,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-17 19:01:54,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:54,909 INFO L225 Difference]: With dead ends: 1700 [2022-03-17 19:01:54,909 INFO L226 Difference]: Without dead ends: 1700 [2022-03-17 19:01:54,910 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:01:54,910 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 109 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:54,910 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 388 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-17 19:01:54,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2022-03-17 19:01:54,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1394. [2022-03-17 19:01:54,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1389 states have (on average 1.4838012958963283) internal successors, (2061), 1389 states have internal predecessors, (2061), 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) [2022-03-17 19:01:54,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2065 transitions. [2022-03-17 19:01:54,925 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2065 transitions. Word has length 130 [2022-03-17 19:01:54,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:54,926 INFO L478 AbstractCegarLoop]: Abstraction has 1394 states and 2065 transitions. [2022-03-17 19:01:54,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:54,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2065 transitions. [2022-03-17 19:01:54,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-17 19:01:54,928 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:54,928 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:54,928 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 19:01:54,928 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:54,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:54,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1588802902, now seen corresponding path program 1 times [2022-03-17 19:01:54,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:54,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279229820] [2022-03-17 19:01:54,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:54,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:55,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:55,028 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-17 19:01:55,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:55,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279229820] [2022-03-17 19:01:55,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279229820] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:55,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:55,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:01:55,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133368306] [2022-03-17 19:01:55,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:55,029 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:01:55,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:55,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:01:55,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:01:55,029 INFO L87 Difference]: Start difference. First operand 1394 states and 2065 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:57,421 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 [] [2022-03-17 19:01:59,441 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 [] [2022-03-17 19:01:59,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:59,714 INFO L93 Difference]: Finished difference Result 1731 states and 2565 transitions. [2022-03-17 19:01:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:01:59,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-17 19:01:59,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:59,718 INFO L225 Difference]: With dead ends: 1731 [2022-03-17 19:01:59,718 INFO L226 Difference]: Without dead ends: 1731 [2022-03-17 19:01:59,719 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:01:59,719 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:59,719 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 244 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 19:01:59,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2022-03-17 19:01:59,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1729. [2022-03-17 19:01:59,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1729 states, 1724 states have (on average 1.4849187935034802) internal successors, (2560), 1724 states have internal predecessors, (2560), 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) [2022-03-17 19:01:59,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2564 transitions. [2022-03-17 19:01:59,737 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2564 transitions. Word has length 134 [2022-03-17 19:01:59,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:59,737 INFO L478 AbstractCegarLoop]: Abstraction has 1729 states and 2564 transitions. [2022-03-17 19:01:59,737 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:59,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2564 transitions. [2022-03-17 19:01:59,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-17 19:01:59,739 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:59,740 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:59,740 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 19:01:59,740 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:59,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:59,740 INFO L85 PathProgramCache]: Analyzing trace with hash 942182169, now seen corresponding path program 1 times [2022-03-17 19:01:59,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:59,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452344839] [2022-03-17 19:01:59,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:59,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:59,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 19:01:59,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:59,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452344839] [2022-03-17 19:01:59,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452344839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:59,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:59,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:59,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174340257] [2022-03-17 19:01:59,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:59,833 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:59,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:59,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:59,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:59,833 INFO L87 Difference]: Start difference. First operand 1729 states and 2564 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:01,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:02,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:02,453 INFO L93 Difference]: Finished difference Result 2436 states and 3618 transitions. [2022-03-17 19:02:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:02,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-17 19:02:02,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:02,459 INFO L225 Difference]: With dead ends: 2436 [2022-03-17 19:02:02,459 INFO L226 Difference]: Without dead ends: 2436 [2022-03-17 19:02:02,459 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:02:02,459 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 115 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:02,460 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 378 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-17 19:02:02,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2022-03-17 19:02:02,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2049. [2022-03-17 19:02:02,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 2044 states have (on average 1.4921722113502935) internal successors, (3050), 2044 states have internal predecessors, (3050), 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) [2022-03-17 19:02:02,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 3054 transitions. [2022-03-17 19:02:02,480 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 3054 transitions. Word has length 158 [2022-03-17 19:02:02,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:02,480 INFO L478 AbstractCegarLoop]: Abstraction has 2049 states and 3054 transitions. [2022-03-17 19:02:02,480 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:02,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 3054 transitions. [2022-03-17 19:02:02,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-17 19:02:02,482 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:02,483 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-17 19:02:02,483 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 19:02:02,483 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:02,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:02,483 INFO L85 PathProgramCache]: Analyzing trace with hash -558884997, now seen corresponding path program 1 times [2022-03-17 19:02:02,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:02,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364031436] [2022-03-17 19:02:02,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:02,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:02,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:02,642 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 19:02:02,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:02,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364031436] [2022-03-17 19:02:02,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364031436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:02,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:02,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:02,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993106189] [2022-03-17 19:02:02,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:02,643 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:02,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:02,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:02,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:02,643 INFO L87 Difference]: Start difference. First operand 2049 states and 3054 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) [2022-03-17 19:02:04,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:06,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:06,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:06,812 INFO L93 Difference]: Finished difference Result 2372 states and 3518 transitions. [2022-03-17 19:02:06,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:06,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-03-17 19:02:06,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:06,818 INFO L225 Difference]: With dead ends: 2372 [2022-03-17 19:02:06,818 INFO L226 Difference]: Without dead ends: 2372 [2022-03-17 19:02:06,819 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:02:06,819 INFO L912 BasicCegarLoop]: 265 mSDtfsCounter, 68 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:06,819 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 642 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-17 19:02:06,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2372 states. [2022-03-17 19:02:06,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2372 to 2197. [2022-03-17 19:02:06,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 2192 states have (on average 1.4972627737226278) internal successors, (3282), 2192 states have internal predecessors, (3282), 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) [2022-03-17 19:02:06,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3286 transitions. [2022-03-17 19:02:06,847 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3286 transitions. Word has length 163 [2022-03-17 19:02:06,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:06,847 INFO L478 AbstractCegarLoop]: Abstraction has 2197 states and 3286 transitions. [2022-03-17 19:02:06,847 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) [2022-03-17 19:02:06,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3286 transitions. [2022-03-17 19:02:06,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-17 19:02:06,851 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:06,851 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-17 19:02:06,851 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 19:02:06,851 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:06,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:06,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1368588268, now seen corresponding path program 1 times [2022-03-17 19:02:06,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:06,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14892008] [2022-03-17 19:02:06,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:06,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:06,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:06,956 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 19:02:06,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:06,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14892008] [2022-03-17 19:02:06,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14892008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:06,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:06,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:06,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421973233] [2022-03-17 19:02:06,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:06,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:06,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:06,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:06,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:06,957 INFO L87 Difference]: Start difference. First operand 2197 states and 3286 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) [2022-03-17 19:02:09,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:11,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:11,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:11,483 INFO L93 Difference]: Finished difference Result 2524 states and 3720 transitions. [2022-03-17 19:02:11,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:11,483 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 164 [2022-03-17 19:02:11,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:11,489 INFO L225 Difference]: With dead ends: 2524 [2022-03-17 19:02:11,489 INFO L226 Difference]: Without dead ends: 2524 [2022-03-17 19:02:11,489 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:02:11,490 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 110 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:11,490 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 366 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 19:02:11,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2022-03-17 19:02:11,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 2197. [2022-03-17 19:02:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 2192 states have (on average 1.4927007299270072) internal successors, (3272), 2192 states have internal predecessors, (3272), 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) [2022-03-17 19:02:11,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3276 transitions. [2022-03-17 19:02:11,509 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3276 transitions. Word has length 164 [2022-03-17 19:02:11,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:11,509 INFO L478 AbstractCegarLoop]: Abstraction has 2197 states and 3276 transitions. [2022-03-17 19:02:11,509 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) [2022-03-17 19:02:11,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3276 transitions. [2022-03-17 19:02:11,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-17 19:02:11,512 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:11,512 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:11,512 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 19:02:11,513 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:11,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:11,513 INFO L85 PathProgramCache]: Analyzing trace with hash 45595843, now seen corresponding path program 1 times [2022-03-17 19:02:11,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:11,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838512317] [2022-03-17 19:02:11,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:11,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:11,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:11,606 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-17 19:02:11,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:11,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838512317] [2022-03-17 19:02:11,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838512317] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:11,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:11,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:02:11,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610934147] [2022-03-17 19:02:11,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:11,607 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:02:11,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:11,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:02:11,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:02:11,607 INFO L87 Difference]: Start difference. First operand 2197 states and 3276 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:14,694 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 [] [2022-03-17 19:02:15,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:15,116 INFO L93 Difference]: Finished difference Result 2627 states and 3920 transitions. [2022-03-17 19:02:15,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:02:15,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-17 19:02:15,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:15,122 INFO L225 Difference]: With dead ends: 2627 [2022-03-17 19:02:15,123 INFO L226 Difference]: Without dead ends: 2627 [2022-03-17 19:02:15,123 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:02:15,123 INFO L912 BasicCegarLoop]: 382 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:15,123 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 576 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 420 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-03-17 19:02:15,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2022-03-17 19:02:15,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2627. [2022-03-17 19:02:15,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2622 states have (on average 1.4935163996948895) internal successors, (3916), 2622 states have internal predecessors, (3916), 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) [2022-03-17 19:02:15,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3920 transitions. [2022-03-17 19:02:15,147 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3920 transitions. Word has length 172 [2022-03-17 19:02:15,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:15,147 INFO L478 AbstractCegarLoop]: Abstraction has 2627 states and 3920 transitions. [2022-03-17 19:02:15,147 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:15,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3920 transitions. [2022-03-17 19:02:15,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-17 19:02:15,150 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:15,151 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:15,151 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 19:02:15,151 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:15,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:15,152 INFO L85 PathProgramCache]: Analyzing trace with hash 169669090, now seen corresponding path program 1 times [2022-03-17 19:02:15,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:15,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078115502] [2022-03-17 19:02:15,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:15,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:15,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:15,255 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 19:02:15,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:15,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078115502] [2022-03-17 19:02:15,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078115502] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:15,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:15,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:02:15,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88362769] [2022-03-17 19:02:15,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:15,257 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:02:15,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:15,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:02:15,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:02:15,258 INFO L87 Difference]: Start difference. First operand 2627 states and 3920 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:17,268 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 [] [2022-03-17 19:02:17,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:17,664 INFO L93 Difference]: Finished difference Result 3027 states and 4516 transitions. [2022-03-17 19:02:17,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:02:17,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-17 19:02:17,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:17,675 INFO L225 Difference]: With dead ends: 3027 [2022-03-17 19:02:17,675 INFO L226 Difference]: Without dead ends: 3027 [2022-03-17 19:02:17,676 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:02:17,676 INFO L912 BasicCegarLoop]: 380 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:17,676 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 574 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 420 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:02:17,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2022-03-17 19:02:17,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 3027. [2022-03-17 19:02:17,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3027 states, 3022 states have (on average 1.4930509596293846) internal successors, (4512), 3022 states have internal predecessors, (4512), 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) [2022-03-17 19:02:17,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3027 states to 3027 states and 4516 transitions. [2022-03-17 19:02:17,706 INFO L78 Accepts]: Start accepts. Automaton has 3027 states and 4516 transitions. Word has length 172 [2022-03-17 19:02:17,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:17,706 INFO L478 AbstractCegarLoop]: Abstraction has 3027 states and 4516 transitions. [2022-03-17 19:02:17,707 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:17,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3027 states and 4516 transitions. [2022-03-17 19:02:17,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-17 19:02:17,710 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:17,710 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 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, 1, 1, 1, 1] [2022-03-17 19:02:17,710 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 19:02:17,711 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:17,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:17,711 INFO L85 PathProgramCache]: Analyzing trace with hash -157505020, now seen corresponding path program 1 times [2022-03-17 19:02:17,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:17,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349093453] [2022-03-17 19:02:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:17,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:17,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:17,862 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-17 19:02:17,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:17,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349093453] [2022-03-17 19:02:17,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349093453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:17,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:17,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:17,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474494748] [2022-03-17 19:02:17,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:17,864 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:17,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:17,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:17,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:17,865 INFO L87 Difference]: Start difference. First operand 3027 states and 4516 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) [2022-03-17 19:02:19,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:20,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:21,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:23,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:24,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:24,283 INFO L93 Difference]: Finished difference Result 3745 states and 5532 transitions. [2022-03-17 19:02:24,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:24,283 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 210 [2022-03-17 19:02:24,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:24,289 INFO L225 Difference]: With dead ends: 3745 [2022-03-17 19:02:24,289 INFO L226 Difference]: Without dead ends: 3745 [2022-03-17 19:02:24,289 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:02:24,290 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 110 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:24,290 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 368 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 19:02:24,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3745 states. [2022-03-17 19:02:24,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3745 to 3064. [2022-03-17 19:02:24,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 3059 states have (on average 1.491663942464858) internal successors, (4563), 3059 states have internal predecessors, (4563), 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) [2022-03-17 19:02:24,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 4567 transitions. [2022-03-17 19:02:24,320 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 4567 transitions. Word has length 210 [2022-03-17 19:02:24,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:24,320 INFO L478 AbstractCegarLoop]: Abstraction has 3064 states and 4567 transitions. [2022-03-17 19:02:24,320 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) [2022-03-17 19:02:24,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 4567 transitions. [2022-03-17 19:02:24,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-03-17 19:02:24,324 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:24,324 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:24,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 19:02:24,325 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:24,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:24,325 INFO L85 PathProgramCache]: Analyzing trace with hash 918566897, now seen corresponding path program 1 times [2022-03-17 19:02:24,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:24,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625423625] [2022-03-17 19:02:24,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:24,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:24,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:24,442 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-17 19:02:24,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:24,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625423625] [2022-03-17 19:02:24,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625423625] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:24,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:24,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:24,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018425048] [2022-03-17 19:02:24,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:24,443 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:24,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:24,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:24,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:24,443 INFO L87 Difference]: Start difference. First operand 3064 states and 4567 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) [2022-03-17 19:02:25,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:28,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:29,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:29,308 INFO L93 Difference]: Finished difference Result 3756 states and 5536 transitions. [2022-03-17 19:02:29,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:29,309 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 219 [2022-03-17 19:02:29,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:29,314 INFO L225 Difference]: With dead ends: 3756 [2022-03-17 19:02:29,314 INFO L226 Difference]: Without dead ends: 3756 [2022-03-17 19:02:29,314 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:02:29,315 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 104 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:29,315 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 369 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 19:02:29,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3756 states. [2022-03-17 19:02:29,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3756 to 3325. [2022-03-17 19:02:29,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3325 states, 3320 states have (on average 1.4951807228915663) internal successors, (4964), 3320 states have internal predecessors, (4964), 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) [2022-03-17 19:02:29,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3325 states to 3325 states and 4968 transitions. [2022-03-17 19:02:29,389 INFO L78 Accepts]: Start accepts. Automaton has 3325 states and 4968 transitions. Word has length 219 [2022-03-17 19:02:29,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:29,389 INFO L478 AbstractCegarLoop]: Abstraction has 3325 states and 4968 transitions. [2022-03-17 19:02:29,389 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) [2022-03-17 19:02:29,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3325 states and 4968 transitions. [2022-03-17 19:02:29,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-03-17 19:02:29,410 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:29,410 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:29,410 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 19:02:29,410 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:29,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:29,410 INFO L85 PathProgramCache]: Analyzing trace with hash 665229166, now seen corresponding path program 1 times [2022-03-17 19:02:29,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:29,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074891802] [2022-03-17 19:02:29,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:29,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:29,524 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-17 19:02:29,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:29,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074891802] [2022-03-17 19:02:29,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074891802] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:29,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:29,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:29,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376096314] [2022-03-17 19:02:29,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:29,525 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:29,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:29,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:29,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:29,526 INFO L87 Difference]: Start difference. First operand 3325 states and 4968 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:31,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:34,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:35,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:35,027 INFO L93 Difference]: Finished difference Result 3771 states and 5562 transitions. [2022-03-17 19:02:35,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:35,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 220 [2022-03-17 19:02:35,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:35,032 INFO L225 Difference]: With dead ends: 3771 [2022-03-17 19:02:35,032 INFO L226 Difference]: Without dead ends: 3757 [2022-03-17 19:02:35,032 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:02:35,033 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 105 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:35,033 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 388 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 19:02:35,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2022-03-17 19:02:35,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3336. [2022-03-17 19:02:35,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3331 states have (on average 1.495046532572801) internal successors, (4980), 3331 states have internal predecessors, (4980), 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) [2022-03-17 19:02:35,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4984 transitions. [2022-03-17 19:02:35,080 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4984 transitions. Word has length 220 [2022-03-17 19:02:35,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:35,081 INFO L478 AbstractCegarLoop]: Abstraction has 3336 states and 4984 transitions. [2022-03-17 19:02:35,081 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:35,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4984 transitions. [2022-03-17 19:02:35,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-03-17 19:02:35,084 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:35,085 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:35,085 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 19:02:35,085 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:35,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:35,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1032687453, now seen corresponding path program 1 times [2022-03-17 19:02:35,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:35,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844843496] [2022-03-17 19:02:35,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:35,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:35,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:35,204 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-03-17 19:02:35,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:35,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844843496] [2022-03-17 19:02:35,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844843496] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:35,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:35,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:35,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825144237] [2022-03-17 19:02:35,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:35,205 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:35,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:35,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:35,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:35,206 INFO L87 Difference]: Start difference. First operand 3336 states and 4984 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) [2022-03-17 19:02:36,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:38,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:40,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:41,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:41,310 INFO L93 Difference]: Finished difference Result 4051 states and 5950 transitions. [2022-03-17 19:02:41,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:41,311 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 232 [2022-03-17 19:02:41,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:41,317 INFO L225 Difference]: With dead ends: 4051 [2022-03-17 19:02:41,317 INFO L226 Difference]: Without dead ends: 4051 [2022-03-17 19:02:41,317 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:02:41,318 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 116 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:41,318 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 390 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 19:02:41,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4051 states. [2022-03-17 19:02:41,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4051 to 3546. [2022-03-17 19:02:41,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3546 states, 3541 states have (on average 1.4860208980513978) internal successors, (5262), 3541 states have internal predecessors, (5262), 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) [2022-03-17 19:02:41,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 5266 transitions. [2022-03-17 19:02:41,402 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 5266 transitions. Word has length 232 [2022-03-17 19:02:41,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:41,402 INFO L478 AbstractCegarLoop]: Abstraction has 3546 states and 5266 transitions. [2022-03-17 19:02:41,402 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) [2022-03-17 19:02:41,402 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 5266 transitions. [2022-03-17 19:02:41,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-03-17 19:02:41,406 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:41,406 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:41,406 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 19:02:41,406 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:41,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:41,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1456164143, now seen corresponding path program 1 times [2022-03-17 19:02:41,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:41,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476183271] [2022-03-17 19:02:41,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:41,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:41,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:41,543 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-03-17 19:02:41,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:41,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476183271] [2022-03-17 19:02:41,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476183271] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:41,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:41,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:41,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228783436] [2022-03-17 19:02:41,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:41,544 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:41,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:41,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:41,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:41,544 INFO L87 Difference]: Start difference. First operand 3546 states and 5266 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) [2022-03-17 19:02:43,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:45,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:47,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:47,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:47,972 INFO L93 Difference]: Finished difference Result 3700 states and 5472 transitions. [2022-03-17 19:02:47,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:47,973 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 233 [2022-03-17 19:02:47,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:47,978 INFO L225 Difference]: With dead ends: 3700 [2022-03-17 19:02:47,978 INFO L226 Difference]: Without dead ends: 3700 [2022-03-17 19:02:47,978 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:02:47,978 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 41 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:47,979 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 602 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 19:02:47,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3700 states. [2022-03-17 19:02:48,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3700 to 3546. [2022-03-17 19:02:48,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3546 states, 3541 states have (on average 1.4840440553515957) internal successors, (5255), 3541 states have internal predecessors, (5255), 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) [2022-03-17 19:02:48,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 5259 transitions. [2022-03-17 19:02:48,010 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 5259 transitions. Word has length 233 [2022-03-17 19:02:48,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:48,010 INFO L478 AbstractCegarLoop]: Abstraction has 3546 states and 5259 transitions. [2022-03-17 19:02:48,010 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) [2022-03-17 19:02:48,010 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 5259 transitions. [2022-03-17 19:02:48,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-03-17 19:02:48,014 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:48,014 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:48,014 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 19:02:48,014 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:48,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1695521844, now seen corresponding path program 1 times [2022-03-17 19:02:48,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:48,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242339734] [2022-03-17 19:02:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:48,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:48,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:48,184 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:02:48,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:48,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242339734] [2022-03-17 19:02:48,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242339734] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:48,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:48,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:48,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964002928] [2022-03-17 19:02:48,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:48,186 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:48,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:48,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:48,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:48,186 INFO L87 Difference]: Start difference. First operand 3546 states and 5259 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:50,199 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 [] [2022-03-17 19:02:50,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:50,623 INFO L93 Difference]: Finished difference Result 4001 states and 5885 transitions. [2022-03-17 19:02:50,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:50,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 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 236 [2022-03-17 19:02:50,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:50,629 INFO L225 Difference]: With dead ends: 4001 [2022-03-17 19:02:50,629 INFO L226 Difference]: Without dead ends: 4001 [2022-03-17 19:02:50,629 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:02:50,629 INFO L912 BasicCegarLoop]: 252 mSDtfsCounter, 56 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:50,630 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 617 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:02:50,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4001 states. [2022-03-17 19:02:50,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4001 to 3714. [2022-03-17 19:02:50,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3714 states, 3709 states have (on average 1.4828794823402534) internal successors, (5500), 3709 states have internal predecessors, (5500), 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) [2022-03-17 19:02:50,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3714 states to 3714 states and 5504 transitions. [2022-03-17 19:02:50,664 INFO L78 Accepts]: Start accepts. Automaton has 3714 states and 5504 transitions. Word has length 236 [2022-03-17 19:02:50,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:50,665 INFO L478 AbstractCegarLoop]: Abstraction has 3714 states and 5504 transitions. [2022-03-17 19:02:50,665 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:50,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3714 states and 5504 transitions. [2022-03-17 19:02:50,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-03-17 19:02:50,670 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:50,670 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:50,670 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 19:02:50,671 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:50,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:50,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1497180434, now seen corresponding path program 1 times [2022-03-17 19:02:50,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:50,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648788137] [2022-03-17 19:02:50,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:50,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:50,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:50,836 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-03-17 19:02:50,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:50,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648788137] [2022-03-17 19:02:50,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648788137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:50,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:50,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:50,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238931849] [2022-03-17 19:02:50,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:50,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:50,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:50,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:50,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:50,838 INFO L87 Difference]: Start difference. First operand 3714 states and 5504 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:52,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:54,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:56,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:57,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:57,420 INFO L93 Difference]: Finished difference Result 3994 states and 5892 transitions. [2022-03-17 19:02:57,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:57,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 258 [2022-03-17 19:02:57,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:57,426 INFO L225 Difference]: With dead ends: 3994 [2022-03-17 19:02:57,426 INFO L226 Difference]: Without dead ends: 3994 [2022-03-17 19:02:57,426 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:02:57,426 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 30 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:57,426 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 589 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 441 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 19:02:57,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2022-03-17 19:02:57,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 3896. [2022-03-17 19:02:57,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3891 states have (on average 1.4818812644564379) internal successors, (5766), 3891 states have internal predecessors, (5766), 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) [2022-03-17 19:02:57,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 5770 transitions. [2022-03-17 19:02:57,460 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 5770 transitions. Word has length 258 [2022-03-17 19:02:57,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:57,461 INFO L478 AbstractCegarLoop]: Abstraction has 3896 states and 5770 transitions. [2022-03-17 19:02:57,461 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:57,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 5770 transitions. [2022-03-17 19:02:57,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-17 19:02:57,466 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:57,466 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:57,466 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 19:02:57,466 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:57,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:57,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1888058611, now seen corresponding path program 1 times [2022-03-17 19:02:57,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:57,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698953937] [2022-03-17 19:02:57,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:57,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:57,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:57,660 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:02:57,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:57,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698953937] [2022-03-17 19:02:57,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698953937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:57,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:57,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:02:57,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390915295] [2022-03-17 19:02:57,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:57,661 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:02:57,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:57,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:02:57,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:02:57,661 INFO L87 Difference]: Start difference. First operand 3896 states and 5770 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:59,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:01,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:02,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:02,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:02,786 INFO L93 Difference]: Finished difference Result 4183 states and 6144 transitions. [2022-03-17 19:03:02,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:02,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 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 263 [2022-03-17 19:03:02,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:02,791 INFO L225 Difference]: With dead ends: 4183 [2022-03-17 19:03:02,792 INFO L226 Difference]: Without dead ends: 4183 [2022-03-17 19:03:02,792 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:03:02,792 INFO L912 BasicCegarLoop]: 251 mSDtfsCounter, 58 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:02,792 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 615 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 19:03:02,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4183 states. [2022-03-17 19:03:02,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4183 to 3910. [2022-03-17 19:03:02,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.4819462227912932) internal successors, (5787), 3905 states have internal predecessors, (5787), 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) [2022-03-17 19:03:02,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5791 transitions. [2022-03-17 19:03:02,825 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5791 transitions. Word has length 263 [2022-03-17 19:03:02,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:02,825 INFO L478 AbstractCegarLoop]: Abstraction has 3910 states and 5791 transitions. [2022-03-17 19:03:02,825 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:02,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5791 transitions. [2022-03-17 19:03:02,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-03-17 19:03:02,830 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:02,831 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:02,831 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 19:03:02,831 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:02,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:02,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1240212366, now seen corresponding path program 1 times [2022-03-17 19:03:02,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:02,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470058853] [2022-03-17 19:03:02,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:02,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:03,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:03,003 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:03:03,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:03,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470058853] [2022-03-17 19:03:03,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470058853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:03,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:03,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:03,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124328456] [2022-03-17 19:03:03,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:03,004 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:03,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:03,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:03,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:03,005 INFO L87 Difference]: Start difference. First operand 3910 states and 5791 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:04,050 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 [] [2022-03-17 19:03:06,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:08,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:09,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:09,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:09,985 INFO L93 Difference]: Finished difference Result 4331 states and 6288 transitions. [2022-03-17 19:03:09,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:09,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 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 263 [2022-03-17 19:03:09,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:09,990 INFO L225 Difference]: With dead ends: 4331 [2022-03-17 19:03:09,990 INFO L226 Difference]: Without dead ends: 4331 [2022-03-17 19:03:09,990 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:03:09,990 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 120 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:09,990 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 394 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 19:03:09,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4331 states. [2022-03-17 19:03:10,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4331 to 3896. [2022-03-17 19:03:10,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3891 states have (on average 1.4662040606527884) internal successors, (5705), 3891 states have internal predecessors, (5705), 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) [2022-03-17 19:03:10,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 5709 transitions. [2022-03-17 19:03:10,024 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 5709 transitions. Word has length 263 [2022-03-17 19:03:10,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:10,024 INFO L478 AbstractCegarLoop]: Abstraction has 3896 states and 5709 transitions. [2022-03-17 19:03:10,025 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:10,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 5709 transitions. [2022-03-17 19:03:10,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-03-17 19:03:10,029 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:10,029 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:10,030 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 19:03:10,030 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:10,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:10,030 INFO L85 PathProgramCache]: Analyzing trace with hash -60118933, now seen corresponding path program 1 times [2022-03-17 19:03:10,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:10,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758102004] [2022-03-17 19:03:10,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:10,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:10,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:10,189 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:03:10,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:10,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758102004] [2022-03-17 19:03:10,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758102004] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:10,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:10,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:10,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030164830] [2022-03-17 19:03:10,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:10,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:10,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:10,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:10,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:10,190 INFO L87 Difference]: Start difference. First operand 3896 states and 5709 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) [2022-03-17 19:03:12,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:14,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:15,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:15,214 INFO L93 Difference]: Finished difference Result 4169 states and 6062 transitions. [2022-03-17 19:03:15,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:15,215 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 264 [2022-03-17 19:03:15,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:15,223 INFO L225 Difference]: With dead ends: 4169 [2022-03-17 19:03:15,224 INFO L226 Difference]: Without dead ends: 4169 [2022-03-17 19:03:15,224 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:03:15,231 INFO L912 BasicCegarLoop]: 249 mSDtfsCounter, 51 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:15,231 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 611 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 19:03:15,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4169 states. [2022-03-17 19:03:15,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4169 to 3945. [2022-03-17 19:03:15,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3945 states, 3940 states have (on average 1.4639593908629442) internal successors, (5768), 3940 states have internal predecessors, (5768), 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) [2022-03-17 19:03:15,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 5772 transitions. [2022-03-17 19:03:15,314 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 5772 transitions. Word has length 264 [2022-03-17 19:03:15,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:15,314 INFO L478 AbstractCegarLoop]: Abstraction has 3945 states and 5772 transitions. [2022-03-17 19:03:15,314 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) [2022-03-17 19:03:15,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 5772 transitions. [2022-03-17 19:03:15,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-03-17 19:03:15,319 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:15,319 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:15,319 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 19:03:15,319 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:15,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:15,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2107997919, now seen corresponding path program 1 times [2022-03-17 19:03:15,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:15,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682529899] [2022-03-17 19:03:15,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:15,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:15,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:15,491 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:03:15,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:15,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682529899] [2022-03-17 19:03:15,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682529899] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:15,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:15,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:15,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005337890] [2022-03-17 19:03:15,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:15,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:15,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:15,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:15,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:15,492 INFO L87 Difference]: Start difference. First operand 3945 states and 5772 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) [2022-03-17 19:03:16,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:18,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:20,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:21,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:22,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:22,169 INFO L93 Difference]: Finished difference Result 4155 states and 6034 transitions. [2022-03-17 19:03:22,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:22,170 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 264 [2022-03-17 19:03:22,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:22,174 INFO L225 Difference]: With dead ends: 4155 [2022-03-17 19:03:22,174 INFO L226 Difference]: Without dead ends: 4155 [2022-03-17 19:03:22,175 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:03:22,175 INFO L912 BasicCegarLoop]: 248 mSDtfsCounter, 53 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:22,175 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 609 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 503 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-17 19:03:22,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2022-03-17 19:03:22,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 3945. [2022-03-17 19:03:22,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3945 states, 3940 states have (on average 1.4621827411167512) internal successors, (5761), 3940 states have internal predecessors, (5761), 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) [2022-03-17 19:03:22,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 5765 transitions. [2022-03-17 19:03:22,206 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 5765 transitions. Word has length 264 [2022-03-17 19:03:22,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:22,206 INFO L478 AbstractCegarLoop]: Abstraction has 3945 states and 5765 transitions. [2022-03-17 19:03:22,207 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) [2022-03-17 19:03:22,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 5765 transitions. [2022-03-17 19:03:22,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-03-17 19:03:22,212 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:22,212 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:22,212 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 19:03:22,212 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:22,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:22,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1867966454, now seen corresponding path program 1 times [2022-03-17 19:03:22,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:22,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094154483] [2022-03-17 19:03:22,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:22,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:22,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:03:22,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:22,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094154483] [2022-03-17 19:03:22,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094154483] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:22,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:22,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:22,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930383916] [2022-03-17 19:03:22,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:22,395 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:22,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:22,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:22,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:22,396 INFO L87 Difference]: Start difference. First operand 3945 states and 5765 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) [2022-03-17 19:03:24,705 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 [] [2022-03-17 19:03:26,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:28,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:28,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:28,619 INFO L93 Difference]: Finished difference Result 4366 states and 6283 transitions. [2022-03-17 19:03:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:28,619 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 264 [2022-03-17 19:03:28,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:28,625 INFO L225 Difference]: With dead ends: 4366 [2022-03-17 19:03:28,625 INFO L226 Difference]: Without dead ends: 4366 [2022-03-17 19:03:28,625 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:03:28,626 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 115 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:28,627 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 370 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 459 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 19:03:28,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4366 states. [2022-03-17 19:03:28,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4366 to 3917. [2022-03-17 19:03:28,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3917 states, 3912 states have (on average 1.4552658486707566) internal successors, (5693), 3912 states have internal predecessors, (5693), 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) [2022-03-17 19:03:28,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3917 states to 3917 states and 5697 transitions. [2022-03-17 19:03:28,701 INFO L78 Accepts]: Start accepts. Automaton has 3917 states and 5697 transitions. Word has length 264 [2022-03-17 19:03:28,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:28,701 INFO L478 AbstractCegarLoop]: Abstraction has 3917 states and 5697 transitions. [2022-03-17 19:03:28,701 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) [2022-03-17 19:03:28,701 INFO L276 IsEmpty]: Start isEmpty. Operand 3917 states and 5697 transitions. [2022-03-17 19:03:28,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-03-17 19:03:28,716 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:28,716 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:28,716 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 19:03:28,716 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:28,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:28,716 INFO L85 PathProgramCache]: Analyzing trace with hash 300150398, now seen corresponding path program 1 times [2022-03-17 19:03:28,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:28,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113528267] [2022-03-17 19:03:28,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:28,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:28,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:28,911 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:03:28,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:28,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113528267] [2022-03-17 19:03:28,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113528267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:28,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:28,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:28,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118029453] [2022-03-17 19:03:28,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:28,911 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:28,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:28,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:28,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:28,912 INFO L87 Difference]: Start difference. First operand 3917 states and 5697 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) [2022-03-17 19:03:32,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:32,088 INFO L93 Difference]: Finished difference Result 4338 states and 6194 transitions. [2022-03-17 19:03:32,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:32,088 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 264 [2022-03-17 19:03:32,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:32,093 INFO L225 Difference]: With dead ends: 4338 [2022-03-17 19:03:32,094 INFO L226 Difference]: Without dead ends: 4338 [2022-03-17 19:03:32,094 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:03:32,094 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 118 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:32,094 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 370 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 19:03:32,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4338 states. [2022-03-17 19:03:32,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4338 to 3896. [2022-03-17 19:03:32,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3891 states have (on average 1.4402467232074017) internal successors, (5604), 3891 states have internal predecessors, (5604), 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) [2022-03-17 19:03:32,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 5608 transitions. [2022-03-17 19:03:32,127 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 5608 transitions. Word has length 264 [2022-03-17 19:03:32,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:32,127 INFO L478 AbstractCegarLoop]: Abstraction has 3896 states and 5608 transitions. [2022-03-17 19:03:32,128 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) [2022-03-17 19:03:32,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 5608 transitions. [2022-03-17 19:03:32,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-03-17 19:03:32,132 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:32,132 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:32,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-17 19:03:32,132 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:32,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:32,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1570176339, now seen corresponding path program 1 times [2022-03-17 19:03:32,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:32,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643086457] [2022-03-17 19:03:32,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:32,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:32,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:32,287 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:03:32,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:32,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643086457] [2022-03-17 19:03:32,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643086457] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:32,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:32,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:32,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249239349] [2022-03-17 19:03:32,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:32,288 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:32,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:32,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:32,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:32,289 INFO L87 Difference]: Start difference. First operand 3896 states and 5608 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) [2022-03-17 19:03:34,295 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 [] [2022-03-17 19:03:34,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:34,666 INFO L93 Difference]: Finished difference Result 4155 states and 5926 transitions. [2022-03-17 19:03:34,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:34,666 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 267 [2022-03-17 19:03:34,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:34,670 INFO L225 Difference]: With dead ends: 4155 [2022-03-17 19:03:34,670 INFO L226 Difference]: Without dead ends: 4155 [2022-03-17 19:03:34,671 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:03:34,676 INFO L912 BasicCegarLoop]: 247 mSDtfsCounter, 46 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:34,678 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 607 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:03:34,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2022-03-17 19:03:34,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 3959. [2022-03-17 19:03:34,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3959 states, 3954 states have (on average 1.4350025290844715) internal successors, (5674), 3954 states have internal predecessors, (5674), 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) [2022-03-17 19:03:34,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3959 states to 3959 states and 5678 transitions. [2022-03-17 19:03:34,725 INFO L78 Accepts]: Start accepts. Automaton has 3959 states and 5678 transitions. Word has length 267 [2022-03-17 19:03:34,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:34,725 INFO L478 AbstractCegarLoop]: Abstraction has 3959 states and 5678 transitions. [2022-03-17 19:03:34,725 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) [2022-03-17 19:03:34,725 INFO L276 IsEmpty]: Start isEmpty. Operand 3959 states and 5678 transitions. [2022-03-17 19:03:34,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-03-17 19:03:34,729 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:34,729 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:34,729 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-17 19:03:34,729 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:34,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:34,730 INFO L85 PathProgramCache]: Analyzing trace with hash -265782610, now seen corresponding path program 1 times [2022-03-17 19:03:34,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:34,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816804699] [2022-03-17 19:03:34,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:34,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:34,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:34,893 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:03:34,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:34,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816804699] [2022-03-17 19:03:34,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816804699] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:34,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:34,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:34,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520014895] [2022-03-17 19:03:34,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:34,893 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:34,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:34,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:34,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:34,894 INFO L87 Difference]: Start difference. First operand 3959 states and 5678 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) [2022-03-17 19:03:36,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:39,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:40,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:40,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:40,472 INFO L93 Difference]: Finished difference Result 4183 states and 5954 transitions. [2022-03-17 19:03:40,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:40,473 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 267 [2022-03-17 19:03:40,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:40,477 INFO L225 Difference]: With dead ends: 4183 [2022-03-17 19:03:40,477 INFO L226 Difference]: Without dead ends: 4183 [2022-03-17 19:03:40,477 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:03:40,477 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 45 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:40,478 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 535 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 19:03:40,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4183 states. [2022-03-17 19:03:40,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4183 to 3924. [2022-03-17 19:03:40,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3924 states, 3919 states have (on average 1.437101301352386) internal successors, (5632), 3919 states have internal predecessors, (5632), 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) [2022-03-17 19:03:40,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 5636 transitions. [2022-03-17 19:03:40,507 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 5636 transitions. Word has length 267 [2022-03-17 19:03:40,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:40,507 INFO L478 AbstractCegarLoop]: Abstraction has 3924 states and 5636 transitions. [2022-03-17 19:03:40,508 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) [2022-03-17 19:03:40,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 5636 transitions. [2022-03-17 19:03:40,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-17 19:03:40,511 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:40,511 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:40,511 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-17 19:03:40,511 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:40,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:40,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1564953844, now seen corresponding path program 1 times [2022-03-17 19:03:40,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:40,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937884960] [2022-03-17 19:03:40,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:40,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:40,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:40,684 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:03:40,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:40,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937884960] [2022-03-17 19:03:40,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937884960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:40,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:40,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:40,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246797817] [2022-03-17 19:03:40,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:40,685 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:40,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:40,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:40,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:40,686 INFO L87 Difference]: Start difference. First operand 3924 states and 5636 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:42,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:44,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:46,117 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 [] [2022-03-17 19:03:47,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:47,418 INFO L93 Difference]: Finished difference Result 4155 states and 5912 transitions. [2022-03-17 19:03:47,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:47,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 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 268 [2022-03-17 19:03:47,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:47,423 INFO L225 Difference]: With dead ends: 4155 [2022-03-17 19:03:47,423 INFO L226 Difference]: Without dead ends: 4155 [2022-03-17 19:03:47,423 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:03:47,424 INFO L912 BasicCegarLoop]: 243 mSDtfsCounter, 41 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:47,424 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 599 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-17 19:03:47,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2022-03-17 19:03:47,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 3994. [2022-03-17 19:03:47,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3994 states, 3989 states have (on average 1.4311857608423164) internal successors, (5709), 3989 states have internal predecessors, (5709), 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) [2022-03-17 19:03:47,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3994 states to 3994 states and 5713 transitions. [2022-03-17 19:03:47,456 INFO L78 Accepts]: Start accepts. Automaton has 3994 states and 5713 transitions. Word has length 268 [2022-03-17 19:03:47,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:47,456 INFO L478 AbstractCegarLoop]: Abstraction has 3994 states and 5713 transitions. [2022-03-17 19:03:47,456 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:47,456 INFO L276 IsEmpty]: Start isEmpty. Operand 3994 states and 5713 transitions. [2022-03-17 19:03:47,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-17 19:03:47,460 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:47,460 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:47,460 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-17 19:03:47,460 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:47,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:47,461 INFO L85 PathProgramCache]: Analyzing trace with hash -29323143, now seen corresponding path program 1 times [2022-03-17 19:03:47,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:47,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463846356] [2022-03-17 19:03:47,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:47,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:47,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:47,654 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:03:47,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:47,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463846356] [2022-03-17 19:03:47,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463846356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:47,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:47,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:47,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260289430] [2022-03-17 19:03:47,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:47,656 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:47,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:47,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:47,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:47,656 INFO L87 Difference]: Start difference. First operand 3994 states and 5713 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:50,319 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 [] [2022-03-17 19:03:51,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:52,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:52,483 INFO L93 Difference]: Finished difference Result 4155 states and 5905 transitions. [2022-03-17 19:03:52,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:52,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 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 268 [2022-03-17 19:03:52,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:52,488 INFO L225 Difference]: With dead ends: 4155 [2022-03-17 19:03:52,488 INFO L226 Difference]: Without dead ends: 4155 [2022-03-17 19:03:52,488 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:03:52,499 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 39 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:52,499 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 597 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 19:03:52,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2022-03-17 19:03:52,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 4001. [2022-03-17 19:03:52,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 3996 states have (on average 1.4304304304304305) internal successors, (5716), 3996 states have internal predecessors, (5716), 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) [2022-03-17 19:03:52,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 5720 transitions. [2022-03-17 19:03:52,532 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 5720 transitions. Word has length 268 [2022-03-17 19:03:52,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:52,532 INFO L478 AbstractCegarLoop]: Abstraction has 4001 states and 5720 transitions. [2022-03-17 19:03:52,533 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:52,533 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 5720 transitions. [2022-03-17 19:03:52,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-17 19:03:52,537 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:52,537 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:52,537 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-17 19:03:52,537 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:52,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:52,537 INFO L85 PathProgramCache]: Analyzing trace with hash -948513517, now seen corresponding path program 1 times [2022-03-17 19:03:52,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:52,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470908014] [2022-03-17 19:03:52,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:52,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:03:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:52,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:03:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:03:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:03:52,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:03:52,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470908014] [2022-03-17 19:03:52,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470908014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:03:52,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:03:52,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:03:52,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924755911] [2022-03-17 19:03:52,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:03:52,726 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:03:52,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:03:52,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:03:52,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:03:52,726 INFO L87 Difference]: Start difference. First operand 4001 states and 5720 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:54,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:55,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:57,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:59,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:03:59,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:03:59,917 INFO L93 Difference]: Finished difference Result 4422 states and 6251 transitions. [2022-03-17 19:03:59,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:03:59,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 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 268 [2022-03-17 19:03:59,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:03:59,921 INFO L225 Difference]: With dead ends: 4422 [2022-03-17 19:03:59,922 INFO L226 Difference]: Without dead ends: 4422 [2022-03-17 19:03:59,922 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:03:59,922 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 110 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:03:59,922 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 370 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-03-17 19:03:59,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4422 states. [2022-03-17 19:03:59,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4422 to 4001. [2022-03-17 19:03:59,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 3996 states have (on average 1.4236736736736737) internal successors, (5689), 3996 states have internal predecessors, (5689), 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) [2022-03-17 19:03:59,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 5693 transitions. [2022-03-17 19:03:59,953 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 5693 transitions. Word has length 268 [2022-03-17 19:03:59,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:03:59,953 INFO L478 AbstractCegarLoop]: Abstraction has 4001 states and 5693 transitions. [2022-03-17 19:03:59,953 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:03:59,954 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 5693 transitions. [2022-03-17 19:03:59,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-17 19:03:59,957 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:03:59,957 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:03:59,957 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-17 19:03:59,957 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:03:59,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:03:59,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1752176792, now seen corresponding path program 1 times [2022-03-17 19:03:59,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:03:59,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173666502] [2022-03-17 19:03:59,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:03:59,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:00,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:00,118 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:04:00,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:00,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173666502] [2022-03-17 19:04:00,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173666502] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:00,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:00,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:00,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614273787] [2022-03-17 19:04:00,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:00,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:00,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:00,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:00,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:00,119 INFO L87 Difference]: Start difference. First operand 4001 states and 5693 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:03,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:03,338 INFO L93 Difference]: Finished difference Result 4716 states and 6637 transitions. [2022-03-17 19:04:03,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:03,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 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 268 [2022-03-17 19:04:03,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:03,343 INFO L225 Difference]: With dead ends: 4716 [2022-03-17 19:04:03,344 INFO L226 Difference]: Without dead ends: 4716 [2022-03-17 19:04:03,344 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:04:03,344 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 108 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:03,344 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 370 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 19:04:03,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4716 states. [2022-03-17 19:04:03,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4716 to 4169. [2022-03-17 19:04:03,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4169 states, 4164 states have (on average 1.4236311239193085) internal successors, (5928), 4164 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) [2022-03-17 19:04:03,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4169 states to 4169 states and 5932 transitions. [2022-03-17 19:04:03,377 INFO L78 Accepts]: Start accepts. Automaton has 4169 states and 5932 transitions. Word has length 268 [2022-03-17 19:04:03,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:03,378 INFO L478 AbstractCegarLoop]: Abstraction has 4169 states and 5932 transitions. [2022-03-17 19:04:03,378 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:03,378 INFO L276 IsEmpty]: Start isEmpty. Operand 4169 states and 5932 transitions. [2022-03-17 19:04:03,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-03-17 19:04:03,382 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:03,382 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:03,382 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-17 19:04:03,382 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:03,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:03,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1401581739, now seen corresponding path program 1 times [2022-03-17 19:04:03,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:03,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453460776] [2022-03-17 19:04:03,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:03,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:03,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:04:03,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:03,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453460776] [2022-03-17 19:04:03,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453460776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:03,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:03,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:03,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323163988] [2022-03-17 19:04:03,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:03,542 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:03,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:03,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:03,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:03,543 INFO L87 Difference]: Start difference. First operand 4169 states and 5932 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) [2022-03-17 19:04:06,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:06,050 INFO L93 Difference]: Finished difference Result 4386 states and 6180 transitions. [2022-03-17 19:04:06,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:06,050 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 269 [2022-03-17 19:04:06,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:06,055 INFO L225 Difference]: With dead ends: 4386 [2022-03-17 19:04:06,055 INFO L226 Difference]: Without dead ends: 4386 [2022-03-17 19:04:06,055 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:04:06,055 INFO L912 BasicCegarLoop]: 240 mSDtfsCounter, 36 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:06,055 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 593 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 19:04:06,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4386 states. [2022-03-17 19:04:06,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4386 to 4253. [2022-03-17 19:04:06,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4253 states, 4248 states have (on average 1.4169020715630884) internal successors, (6019), 4248 states have internal predecessors, (6019), 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) [2022-03-17 19:04:06,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 6023 transitions. [2022-03-17 19:04:06,087 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 6023 transitions. Word has length 269 [2022-03-17 19:04:06,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:06,087 INFO L478 AbstractCegarLoop]: Abstraction has 4253 states and 6023 transitions. [2022-03-17 19:04:06,089 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) [2022-03-17 19:04:06,089 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 6023 transitions. [2022-03-17 19:04:06,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-03-17 19:04:06,093 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:06,093 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:06,093 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-17 19:04:06,093 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:06,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:06,093 INFO L85 PathProgramCache]: Analyzing trace with hash -2009658602, now seen corresponding path program 1 times [2022-03-17 19:04:06,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:06,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061131212] [2022-03-17 19:04:06,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:06,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:06,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:06,255 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:04:06,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:06,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061131212] [2022-03-17 19:04:06,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061131212] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:06,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:06,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:06,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493096922] [2022-03-17 19:04:06,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:06,256 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:06,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:06,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:06,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:06,257 INFO L87 Difference]: Start difference. First operand 4253 states and 6023 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) [2022-03-17 19:04:07,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:08,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:10,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:12,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:12,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:12,544 INFO L93 Difference]: Finished difference Result 4407 states and 6201 transitions. [2022-03-17 19:04:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:12,544 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 269 [2022-03-17 19:04:12,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:12,548 INFO L225 Difference]: With dead ends: 4407 [2022-03-17 19:04:12,548 INFO L226 Difference]: Without dead ends: 4407 [2022-03-17 19:04:12,549 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:04:12,549 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 35 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:12,549 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 541 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 19:04:12,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4407 states. [2022-03-17 19:04:12,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4407 to 4190. [2022-03-17 19:04:12,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 4185 states have (on average 1.421505376344086) internal successors, (5949), 4185 states have internal predecessors, (5949), 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) [2022-03-17 19:04:12,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 5953 transitions. [2022-03-17 19:04:12,581 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 5953 transitions. Word has length 269 [2022-03-17 19:04:12,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:12,581 INFO L478 AbstractCegarLoop]: Abstraction has 4190 states and 5953 transitions. [2022-03-17 19:04:12,581 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) [2022-03-17 19:04:12,581 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 5953 transitions. [2022-03-17 19:04:12,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-03-17 19:04:12,585 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:12,585 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:12,585 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-17 19:04:12,585 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:12,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:12,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1588012505, now seen corresponding path program 1 times [2022-03-17 19:04:12,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:12,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820292147] [2022-03-17 19:04:12,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:12,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:12,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 19:04:12,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:12,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820292147] [2022-03-17 19:04:12,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820292147] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:12,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:12,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:12,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893001900] [2022-03-17 19:04:12,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:12,736 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:12,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:12,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:12,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:12,736 INFO L87 Difference]: Start difference. First operand 4190 states and 5953 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:14,751 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 [] [2022-03-17 19:04:15,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:15,136 INFO L93 Difference]: Finished difference Result 4407 states and 6194 transitions. [2022-03-17 19:04:15,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:15,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 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 277 [2022-03-17 19:04:15,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:15,141 INFO L225 Difference]: With dead ends: 4407 [2022-03-17 19:04:15,141 INFO L226 Difference]: Without dead ends: 4407 [2022-03-17 19:04:15,141 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:04:15,141 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 30 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:15,141 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 591 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 19:04:15,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4407 states. [2022-03-17 19:04:15,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4407 to 4309. [2022-03-17 19:04:15,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4304 states have (on average 1.4114776951672863) internal successors, (6075), 4304 states have internal predecessors, (6075), 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) [2022-03-17 19:04:15,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 6079 transitions. [2022-03-17 19:04:15,173 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 6079 transitions. Word has length 277 [2022-03-17 19:04:15,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:15,173 INFO L478 AbstractCegarLoop]: Abstraction has 4309 states and 6079 transitions. [2022-03-17 19:04:15,173 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:15,173 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 6079 transitions. [2022-03-17 19:04:15,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-03-17 19:04:15,177 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:15,177 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:15,177 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-17 19:04:15,177 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:15,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:15,178 INFO L85 PathProgramCache]: Analyzing trace with hash -720960280, now seen corresponding path program 1 times [2022-03-17 19:04:15,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:15,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218054939] [2022-03-17 19:04:15,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:15,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:15,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:15,351 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-03-17 19:04:15,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:15,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218054939] [2022-03-17 19:04:15,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218054939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:15,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:15,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:15,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336949853] [2022-03-17 19:04:15,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:15,352 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:15,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:15,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:15,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:15,353 INFO L87 Difference]: Start difference. First operand 4309 states and 6079 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:18,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:19,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:19,123 INFO L93 Difference]: Finished difference Result 4443 states and 6230 transitions. [2022-03-17 19:04:19,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:19,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-03-17 19:04:19,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:19,128 INFO L225 Difference]: With dead ends: 4443 [2022-03-17 19:04:19,128 INFO L226 Difference]: Without dead ends: 4443 [2022-03-17 19:04:19,128 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:04:19,128 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 54 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:19,128 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 584 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-17 19:04:19,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4443 states. [2022-03-17 19:04:19,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4443 to 4309. [2022-03-17 19:04:19,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4304 states have (on average 1.4100836431226766) internal successors, (6069), 4304 states have internal predecessors, (6069), 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) [2022-03-17 19:04:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 6073 transitions. [2022-03-17 19:04:19,160 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 6073 transitions. Word has length 277 [2022-03-17 19:04:19,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:19,160 INFO L478 AbstractCegarLoop]: Abstraction has 4309 states and 6073 transitions. [2022-03-17 19:04:19,160 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:19,160 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 6073 transitions. [2022-03-17 19:04:19,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-03-17 19:04:19,164 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:19,164 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:19,164 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-17 19:04:19,164 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:19,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:19,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1938433169, now seen corresponding path program 1 times [2022-03-17 19:04:19,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:19,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367061273] [2022-03-17 19:04:19,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:19,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:19,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:19,364 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 444 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-03-17 19:04:19,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:19,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367061273] [2022-03-17 19:04:19,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367061273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:19,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:19,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:19,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566759956] [2022-03-17 19:04:19,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:19,365 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:19,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:19,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:19,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:19,366 INFO L87 Difference]: Start difference. First operand 4309 states and 6073 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:20,472 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 [] [2022-03-17 19:04:23,300 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 [] [2022-03-17 19:04:24,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:24,135 INFO L93 Difference]: Finished difference Result 4407 states and 6181 transitions. [2022-03-17 19:04:24,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:24,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 285 [2022-03-17 19:04:24,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:24,140 INFO L225 Difference]: With dead ends: 4407 [2022-03-17 19:04:24,140 INFO L226 Difference]: Without dead ends: 4407 [2022-03-17 19:04:24,140 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:04:24,140 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 46 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:24,140 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 589 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 19:04:24,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4407 states. [2022-03-17 19:04:24,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4407 to 4309. [2022-03-17 19:04:24,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4304 states have (on average 1.408457249070632) internal successors, (6062), 4304 states have internal predecessors, (6062), 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) [2022-03-17 19:04:24,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 6066 transitions. [2022-03-17 19:04:24,172 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 6066 transitions. Word has length 285 [2022-03-17 19:04:24,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:24,172 INFO L478 AbstractCegarLoop]: Abstraction has 4309 states and 6066 transitions. [2022-03-17 19:04:24,172 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:24,172 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 6066 transitions. [2022-03-17 19:04:24,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-03-17 19:04:24,176 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:24,176 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:24,176 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-17 19:04:24,177 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:24,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:24,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1869106304, now seen corresponding path program 1 times [2022-03-17 19:04:24,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:24,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183880343] [2022-03-17 19:04:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:24,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:24,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:24,333 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-03-17 19:04:24,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:24,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183880343] [2022-03-17 19:04:24,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183880343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:24,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:24,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:24,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186192937] [2022-03-17 19:04:24,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:24,334 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:24,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:24,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:24,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:24,334 INFO L87 Difference]: Start difference. First operand 4309 states and 6066 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:26,822 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 [] [2022-03-17 19:04:28,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:28,351 INFO L93 Difference]: Finished difference Result 4373 states and 6132 transitions. [2022-03-17 19:04:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:28,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 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 [2022-03-17 19:04:28,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:28,356 INFO L225 Difference]: With dead ends: 4373 [2022-03-17 19:04:28,356 INFO L226 Difference]: Without dead ends: 4373 [2022-03-17 19:04:28,356 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:04:28,356 INFO L912 BasicCegarLoop]: 232 mSDtfsCounter, 38 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:28,356 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 577 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-17 19:04:28,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4373 states. [2022-03-17 19:04:28,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4373 to 4309. [2022-03-17 19:04:28,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4304 states have (on average 1.4068308550185873) internal successors, (6055), 4304 states have internal predecessors, (6055), 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) [2022-03-17 19:04:28,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 6059 transitions. [2022-03-17 19:04:28,388 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 6059 transitions. Word has length 286 [2022-03-17 19:04:28,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:28,388 INFO L478 AbstractCegarLoop]: Abstraction has 4309 states and 6059 transitions. [2022-03-17 19:04:28,388 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:28,389 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 6059 transitions. [2022-03-17 19:04:28,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-03-17 19:04:28,392 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:28,392 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:28,392 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-17 19:04:28,392 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:28,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:28,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1217942817, now seen corresponding path program 1 times [2022-03-17 19:04:28,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:28,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718541425] [2022-03-17 19:04:28,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:28,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:28,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:28,553 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-03-17 19:04:28,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:28,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718541425] [2022-03-17 19:04:28,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718541425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:28,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:28,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:28,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640359718] [2022-03-17 19:04:28,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:28,554 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:28,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:28,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:28,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:28,554 INFO L87 Difference]: Start difference. First operand 4309 states and 6059 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:31,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:33,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:34,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:34,959 INFO L93 Difference]: Finished difference Result 4730 states and 6542 transitions. [2022-03-17 19:04:34,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:34,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 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 [2022-03-17 19:04:34,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:34,963 INFO L225 Difference]: With dead ends: 4730 [2022-03-17 19:04:34,963 INFO L226 Difference]: Without dead ends: 4730 [2022-03-17 19:04:34,964 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:04:34,964 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 118 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:34,964 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 370 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 459 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 19:04:34,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4730 states. [2022-03-17 19:04:34,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4730 to 4309. [2022-03-17 19:04:34,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4304 states have (on average 1.3894052044609666) internal successors, (5980), 4304 states have internal predecessors, (5980), 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) [2022-03-17 19:04:34,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 5984 transitions. [2022-03-17 19:04:34,992 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 5984 transitions. Word has length 286 [2022-03-17 19:04:34,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:34,992 INFO L478 AbstractCegarLoop]: Abstraction has 4309 states and 5984 transitions. [2022-03-17 19:04:34,993 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:04:34,993 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 5984 transitions. [2022-03-17 19:04:34,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-03-17 19:04:34,996 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:34,997 INFO L500 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, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:34,997 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-17 19:04:34,997 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:34,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:34,997 INFO L85 PathProgramCache]: Analyzing trace with hash -746756437, now seen corresponding path program 1 times [2022-03-17 19:04:34,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:34,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583498951] [2022-03-17 19:04:34,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:34,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:35,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:35,287 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-03-17 19:04:35,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:35,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583498951] [2022-03-17 19:04:35,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583498951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:35,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:35,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 19:04:35,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261892769] [2022-03-17 19:04:35,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:35,289 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 19:04:35,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:35,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 19:04:35,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-17 19:04:35,291 INFO L87 Difference]: Start difference. First operand 4309 states and 5984 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 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) [2022-03-17 19:04:37,682 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 [] [2022-03-17 19:04:38,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:41,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:43,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:43,265 INFO L93 Difference]: Finished difference Result 8159 states and 11348 transitions. [2022-03-17 19:04:43,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 19:04:43,266 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 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 295 [2022-03-17 19:04:43,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:43,272 INFO L225 Difference]: With dead ends: 8159 [2022-03-17 19:04:43,272 INFO L226 Difference]: Without dead ends: 8159 [2022-03-17 19:04:43,272 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-17 19:04:43,272 INFO L912 BasicCegarLoop]: 301 mSDtfsCounter, 199 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 45 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:43,273 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 1217 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1175 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-03-17 19:04:43,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8159 states. [2022-03-17 19:04:43,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8159 to 7590. [2022-03-17 19:04:43,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7590 states, 7585 states have (on average 1.4073829927488464) internal successors, (10675), 7585 states have internal predecessors, (10675), 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) [2022-03-17 19:04:43,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7590 states to 7590 states and 10679 transitions. [2022-03-17 19:04:43,331 INFO L78 Accepts]: Start accepts. Automaton has 7590 states and 10679 transitions. Word has length 295 [2022-03-17 19:04:43,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:43,332 INFO L478 AbstractCegarLoop]: Abstraction has 7590 states and 10679 transitions. [2022-03-17 19:04:43,332 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 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) [2022-03-17 19:04:43,332 INFO L276 IsEmpty]: Start isEmpty. Operand 7590 states and 10679 transitions. [2022-03-17 19:04:43,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-03-17 19:04:43,339 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:43,339 INFO L500 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, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:43,339 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-17 19:04:43,339 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:43,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:43,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1814109237, now seen corresponding path program 1 times [2022-03-17 19:04:43,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:43,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119449949] [2022-03-17 19:04:43,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:43,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:43,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-03-17 19:04:43,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:43,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119449949] [2022-03-17 19:04:43,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119449949] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:43,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:43,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:43,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100278807] [2022-03-17 19:04:43,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:43,566 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:43,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:43,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:43,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:43,567 INFO L87 Difference]: Start difference. First operand 7590 states and 10679 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) [2022-03-17 19:04:45,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:47,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:48,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:48,071 INFO L93 Difference]: Finished difference Result 7697 states and 10797 transitions. [2022-03-17 19:04:48,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:04:48,072 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 296 [2022-03-17 19:04:48,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:48,079 INFO L225 Difference]: With dead ends: 7697 [2022-03-17 19:04:48,079 INFO L226 Difference]: Without dead ends: 7564 [2022-03-17 19:04:48,079 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:04:48,080 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:48,080 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 575 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 19:04:48,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7564 states. [2022-03-17 19:04:48,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7564 to 7464. [2022-03-17 19:04:48,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7464 states, 7459 states have (on average 1.4123877195334495) internal successors, (10535), 7459 states have internal predecessors, (10535), 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) [2022-03-17 19:04:48,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7464 states to 7464 states and 10539 transitions. [2022-03-17 19:04:48,139 INFO L78 Accepts]: Start accepts. Automaton has 7464 states and 10539 transitions. Word has length 296 [2022-03-17 19:04:48,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:48,140 INFO L478 AbstractCegarLoop]: Abstraction has 7464 states and 10539 transitions. [2022-03-17 19:04:48,140 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) [2022-03-17 19:04:48,140 INFO L276 IsEmpty]: Start isEmpty. Operand 7464 states and 10539 transitions. [2022-03-17 19:04:48,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-03-17 19:04:48,146 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:48,146 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:48,146 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-17 19:04:48,147 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:48,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:48,147 INFO L85 PathProgramCache]: Analyzing trace with hash -738379758, now seen corresponding path program 1 times [2022-03-17 19:04:48,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:48,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406466689] [2022-03-17 19:04:48,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:48,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:48,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:48,313 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-03-17 19:04:48,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:48,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406466689] [2022-03-17 19:04:48,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406466689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:48,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:48,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 19:04:48,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970387886] [2022-03-17 19:04:48,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:48,313 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 19:04:48,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:48,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 19:04:48,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:04:48,314 INFO L87 Difference]: Start difference. First operand 7464 states and 10539 transitions. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 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) [2022-03-17 19:04:51,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:54,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:54,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:04:54,891 INFO L93 Difference]: Finished difference Result 8550 states and 11975 transitions. [2022-03-17 19:04:54,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 19:04:54,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 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 307 [2022-03-17 19:04:54,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:04:54,900 INFO L225 Difference]: With dead ends: 8550 [2022-03-17 19:04:54,901 INFO L226 Difference]: Without dead ends: 8550 [2022-03-17 19:04:54,901 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-17 19:04:54,901 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 39 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:04:54,901 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 711 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 614 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-17 19:04:54,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8550 states. [2022-03-17 19:04:54,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8550 to 7941. [2022-03-17 19:04:54,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7941 states, 7936 states have (on average 1.409274193548387) internal successors, (11184), 7936 states have internal predecessors, (11184), 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) [2022-03-17 19:04:55,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7941 states to 7941 states and 11188 transitions. [2022-03-17 19:04:55,005 INFO L78 Accepts]: Start accepts. Automaton has 7941 states and 11188 transitions. Word has length 307 [2022-03-17 19:04:55,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:04:55,005 INFO L478 AbstractCegarLoop]: Abstraction has 7941 states and 11188 transitions. [2022-03-17 19:04:55,006 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 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) [2022-03-17 19:04:55,006 INFO L276 IsEmpty]: Start isEmpty. Operand 7941 states and 11188 transitions. [2022-03-17 19:04:55,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-03-17 19:04:55,012 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:04:55,013 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:04:55,013 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-17 19:04:55,013 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:04:55,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:04:55,013 INFO L85 PathProgramCache]: Analyzing trace with hash -679159021, now seen corresponding path program 1 times [2022-03-17 19:04:55,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:04:55,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048283530] [2022-03-17 19:04:55,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:04:55,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:04:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:55,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:04:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:04:55,192 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-03-17 19:04:55,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:04:55,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048283530] [2022-03-17 19:04:55,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048283530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:04:55,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:04:55,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:04:55,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405159285] [2022-03-17 19:04:55,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:04:55,193 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:04:55,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:04:55,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:04:55,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:04:55,193 INFO L87 Difference]: Start difference. First operand 7941 states and 11188 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) [2022-03-17 19:04:56,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:57,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:04:59,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:00,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:01,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:01,443 INFO L93 Difference]: Finished difference Result 8772 states and 12111 transitions. [2022-03-17 19:05:01,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:01,444 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 307 [2022-03-17 19:05:01,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:01,453 INFO L225 Difference]: With dead ends: 8772 [2022-03-17 19:05:01,453 INFO L226 Difference]: Without dead ends: 8772 [2022-03-17 19:05:01,453 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:01,454 INFO L912 BasicCegarLoop]: 155 mSDtfsCounter, 120 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:01,454 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 417 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 19:05:01,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8772 states. [2022-03-17 19:05:01,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8772 to 7941. [2022-03-17 19:05:01,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7941 states, 7936 states have (on average 1.3868447580645162) internal successors, (11006), 7936 states have internal predecessors, (11006), 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) [2022-03-17 19:05:01,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7941 states to 7941 states and 11010 transitions. [2022-03-17 19:05:01,539 INFO L78 Accepts]: Start accepts. Automaton has 7941 states and 11010 transitions. Word has length 307 [2022-03-17 19:05:01,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:01,539 INFO L478 AbstractCegarLoop]: Abstraction has 7941 states and 11010 transitions. [2022-03-17 19:05:01,539 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) [2022-03-17 19:05:01,540 INFO L276 IsEmpty]: Start isEmpty. Operand 7941 states and 11010 transitions. [2022-03-17 19:05:01,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-03-17 19:05:01,546 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:01,547 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 8, 6, 6, 4, 4, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:01,547 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-17 19:05:01,547 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:01,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:01,547 INFO L85 PathProgramCache]: Analyzing trace with hash 459743299, now seen corresponding path program 1 times [2022-03-17 19:05:01,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:01,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288559812] [2022-03-17 19:05:01,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:01,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:01,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:01,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 583 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-03-17 19:05:01,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:01,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288559812] [2022-03-17 19:05:01,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288559812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:01,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:01,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:01,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970060612] [2022-03-17 19:05:01,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:01,715 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:01,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:01,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:01,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:01,716 INFO L87 Difference]: Start difference. First operand 7941 states and 11010 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) [2022-03-17 19:05:03,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:05,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:07,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:07,019 INFO L93 Difference]: Finished difference Result 8053 states and 11112 transitions. [2022-03-17 19:05:07,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:07,019 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 308 [2022-03-17 19:05:07,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:07,029 INFO L225 Difference]: With dead ends: 8053 [2022-03-17 19:05:07,029 INFO L226 Difference]: Without dead ends: 8053 [2022-03-17 19:05:07,029 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:07,030 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 35 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:07,030 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 525 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 432 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 19:05:07,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8053 states. [2022-03-17 19:05:07,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8053 to 7915. [2022-03-17 19:05:07,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7915 states, 7910 states have (on average 1.3855878634639696) internal successors, (10960), 7910 states have internal predecessors, (10960), 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) [2022-03-17 19:05:07,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7915 states to 7915 states and 10964 transitions. [2022-03-17 19:05:07,114 INFO L78 Accepts]: Start accepts. Automaton has 7915 states and 10964 transitions. Word has length 308 [2022-03-17 19:05:07,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:07,114 INFO L478 AbstractCegarLoop]: Abstraction has 7915 states and 10964 transitions. [2022-03-17 19:05:07,114 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) [2022-03-17 19:05:07,114 INFO L276 IsEmpty]: Start isEmpty. Operand 7915 states and 10964 transitions. [2022-03-17 19:05:07,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-03-17 19:05:07,122 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:07,123 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:07,123 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-17 19:05:07,123 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:07,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:07,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1332839289, now seen corresponding path program 1 times [2022-03-17 19:05:07,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:07,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57202937] [2022-03-17 19:05:07,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:07,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:07,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:07,538 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-03-17 19:05:07,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:07,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57202937] [2022-03-17 19:05:07,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57202937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:07,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:07,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:07,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443765895] [2022-03-17 19:05:07,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:07,538 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:07,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:07,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:07,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:07,539 INFO L87 Difference]: Start difference. First operand 7915 states and 10964 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) [2022-03-17 19:05:09,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:11,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:12,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:12,153 INFO L93 Difference]: Finished difference Result 8029 states and 11101 transitions. [2022-03-17 19:05:12,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:12,153 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 308 [2022-03-17 19:05:12,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:12,162 INFO L225 Difference]: With dead ends: 8029 [2022-03-17 19:05:12,162 INFO L226 Difference]: Without dead ends: 8029 [2022-03-17 19:05:12,162 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:12,162 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 14 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:12,162 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 565 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 19:05:12,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8029 states. [2022-03-17 19:05:12,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8029 to 7985. [2022-03-17 19:05:12,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7985 states, 7980 states have (on average 1.3848370927318296) internal successors, (11051), 7980 states have internal predecessors, (11051), 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) [2022-03-17 19:05:12,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 11055 transitions. [2022-03-17 19:05:12,244 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 11055 transitions. Word has length 308 [2022-03-17 19:05:12,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:12,244 INFO L478 AbstractCegarLoop]: Abstraction has 7985 states and 11055 transitions. [2022-03-17 19:05:12,244 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) [2022-03-17 19:05:12,244 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 11055 transitions. [2022-03-17 19:05:12,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-03-17 19:05:12,251 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:12,252 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:12,252 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-17 19:05:12,252 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:12,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:12,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1450830092, now seen corresponding path program 1 times [2022-03-17 19:05:12,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:12,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483018338] [2022-03-17 19:05:12,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:12,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:12,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:12,468 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-03-17 19:05:12,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:12,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483018338] [2022-03-17 19:05:12,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483018338] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:12,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:12,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:12,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011419521] [2022-03-17 19:05:12,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:12,468 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:12,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:12,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:12,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:12,469 INFO L87 Difference]: Start difference. First operand 7985 states and 11055 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) [2022-03-17 19:05:14,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:16,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:18,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:18,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:18,795 INFO L93 Difference]: Finished difference Result 8300 states and 11425 transitions. [2022-03-17 19:05:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:18,796 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 309 [2022-03-17 19:05:18,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:18,805 INFO L225 Difference]: With dead ends: 8300 [2022-03-17 19:05:18,805 INFO L226 Difference]: Without dead ends: 8300 [2022-03-17 19:05:18,805 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:18,805 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 48 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:18,805 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 603 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 19:05:18,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8300 states. [2022-03-17 19:05:18,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8300 to 7985. [2022-03-17 19:05:18,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7985 states, 7980 states have (on average 1.3830827067669174) internal successors, (11037), 7980 states have internal predecessors, (11037), 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) [2022-03-17 19:05:18,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 11041 transitions. [2022-03-17 19:05:18,892 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 11041 transitions. Word has length 309 [2022-03-17 19:05:18,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:18,892 INFO L478 AbstractCegarLoop]: Abstraction has 7985 states and 11041 transitions. [2022-03-17 19:05:18,892 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) [2022-03-17 19:05:18,892 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 11041 transitions. [2022-03-17 19:05:18,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-03-17 19:05:18,899 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:18,899 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:18,899 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-17 19:05:18,899 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:18,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:18,900 INFO L85 PathProgramCache]: Analyzing trace with hash 962661665, now seen corresponding path program 1 times [2022-03-17 19:05:18,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:18,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870844622] [2022-03-17 19:05:18,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:18,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:19,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:19,169 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-03-17 19:05:19,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:19,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870844622] [2022-03-17 19:05:19,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870844622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:19,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:19,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:19,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281385259] [2022-03-17 19:05:19,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:19,170 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:19,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:19,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:19,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:19,170 INFO L87 Difference]: Start difference. First operand 7985 states and 11041 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:20,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:22,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:22,110 INFO L93 Difference]: Finished difference Result 8773 states and 12049 transitions. [2022-03-17 19:05:22,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:22,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 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 310 [2022-03-17 19:05:22,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:22,119 INFO L225 Difference]: With dead ends: 8773 [2022-03-17 19:05:22,120 INFO L226 Difference]: Without dead ends: 8773 [2022-03-17 19:05:22,120 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:22,120 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 105 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:22,120 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 378 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-17 19:05:22,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8773 states. [2022-03-17 19:05:22,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8773 to 7943. [2022-03-17 19:05:22,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7943 states, 7938 states have (on average 1.3790627362055934) internal successors, (10947), 7938 states have internal predecessors, (10947), 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) [2022-03-17 19:05:22,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7943 states to 7943 states and 10951 transitions. [2022-03-17 19:05:22,210 INFO L78 Accepts]: Start accepts. Automaton has 7943 states and 10951 transitions. Word has length 310 [2022-03-17 19:05:22,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:22,210 INFO L478 AbstractCegarLoop]: Abstraction has 7943 states and 10951 transitions. [2022-03-17 19:05:22,210 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:22,210 INFO L276 IsEmpty]: Start isEmpty. Operand 7943 states and 10951 transitions. [2022-03-17 19:05:22,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-03-17 19:05:22,217 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:22,218 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-17 19:05:22,218 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-17 19:05:22,218 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:22,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:22,218 INFO L85 PathProgramCache]: Analyzing trace with hash -531049626, now seen corresponding path program 1 times [2022-03-17 19:05:22,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:22,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304833827] [2022-03-17 19:05:22,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:22,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:22,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:22,406 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-03-17 19:05:22,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:22,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304833827] [2022-03-17 19:05:22,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304833827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:22,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:22,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:05:22,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045792071] [2022-03-17 19:05:22,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:22,407 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:22,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:22,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:22,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:05:22,408 INFO L87 Difference]: Start difference. First operand 7943 states and 10951 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:24,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:26,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:28,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:29,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:29,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:29,644 INFO L93 Difference]: Finished difference Result 8006 states and 10997 transitions. [2022-03-17 19:05:29,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:29,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 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 [2022-03-17 19:05:29,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:29,652 INFO L225 Difference]: With dead ends: 8006 [2022-03-17 19:05:29,653 INFO L226 Difference]: Without dead ends: 7966 [2022-03-17 19:05:29,653 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:05:29,653 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 15 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:29,653 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 565 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 390 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-17 19:05:29,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7966 states. [2022-03-17 19:05:29,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7966 to 7609. [2022-03-17 19:05:29,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7609 states, 7604 states have (on average 1.3801946344029459) internal successors, (10495), 7604 states have internal predecessors, (10495), 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) [2022-03-17 19:05:29,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7609 states to 7609 states and 10499 transitions. [2022-03-17 19:05:29,753 INFO L78 Accepts]: Start accepts. Automaton has 7609 states and 10499 transitions. Word has length 318 [2022-03-17 19:05:29,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:29,753 INFO L478 AbstractCegarLoop]: Abstraction has 7609 states and 10499 transitions. [2022-03-17 19:05:29,753 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:05:29,753 INFO L276 IsEmpty]: Start isEmpty. Operand 7609 states and 10499 transitions. [2022-03-17 19:05:29,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-03-17 19:05:29,759 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:29,759 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:29,759 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-17 19:05:29,759 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:29,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:29,760 INFO L85 PathProgramCache]: Analyzing trace with hash -57476552, now seen corresponding path program 1 times [2022-03-17 19:05:29,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:29,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992592993] [2022-03-17 19:05:29,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:29,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:29,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:29,999 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 192 proven. 33 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2022-03-17 19:05:29,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:29,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992592993] [2022-03-17 19:05:29,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992592993] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:05:29,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517454622] [2022-03-17 19:05:29,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:29,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:05:29,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:05:30,001 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) [2022-03-17 19:05:30,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 19:05:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:31,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1729 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-17 19:05:31,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:05:31,444 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:05:31,445 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 [2022-03-17 19:05:31,482 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:05:31,483 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 [2022-03-17 19:05:31,597 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 [2022-03-17 19:05:31,720 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 [2022-03-17 19:05:31,735 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 31 treesize of output 19 [2022-03-17 19:05:31,739 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 13 [2022-03-17 19:05:31,751 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 19:05:31,751 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 32 [2022-03-17 19:05:31,808 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-17 19:05:31,808 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-17 19:05:31,934 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 29 treesize of output 11 [2022-03-17 19:05:31,958 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 188 proven. 141 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2022-03-17 19:05:31,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:05:32,028 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 38 treesize of output 26 [2022-03-17 19:05:32,030 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 26 treesize of output 20 [2022-03-17 19:05:34,035 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_10 Int) (v_arrayElimCell_11 Int)) (not (= 8545 (select (select (store |c_#memory_int| v_arrayElimCell_10 (store (select |c_#memory_int| v_arrayElimCell_10) (+ 844 v_arrayElimCell_11) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-03-17 19:05:34,294 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-03-17 19:05:34,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517454622] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 19:05:34,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 19:05:34,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 10] total 14 [2022-03-17 19:05:34,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246654493] [2022-03-17 19:05:34,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:34,295 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:34,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:34,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:34,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=128, Unknown=1, NotChecked=22, Total=182 [2022-03-17 19:05:34,296 INFO L87 Difference]: Start difference. First operand 7609 states and 10499 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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) [2022-03-17 19:05:36,064 WARN L833 $PredicateComparison]: unable to prove that (and (not (= 8545 (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))) (forall ((v_arrayElimCell_10 Int) (v_arrayElimCell_11 Int)) (not (= 8545 (select (select (store |c_#memory_int| v_arrayElimCell_10 (store (select |c_#memory_int| v_arrayElimCell_10) (+ 844 v_arrayElimCell_11) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))))) is different from false [2022-03-17 19:05:36,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:36,241 INFO L93 Difference]: Finished difference Result 8649 states and 11822 transitions. [2022-03-17 19:05:36,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:36,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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 320 [2022-03-17 19:05:36,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:36,251 INFO L225 Difference]: With dead ends: 8649 [2022-03-17 19:05:36,252 INFO L226 Difference]: Without dead ends: 8649 [2022-03-17 19:05:36,252 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=37, Invalid=151, Unknown=2, NotChecked=50, Total=240 [2022-03-17 19:05:36,253 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 112 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 257 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:36,253 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 493 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 238 Invalid, 0 Unknown, 257 Unchecked, 1.1s Time] [2022-03-17 19:05:36,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8649 states. [2022-03-17 19:05:36,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8649 to 7783. [2022-03-17 19:05:36,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7783 states, 7778 states have (on average 1.3713036770377989) internal successors, (10666), 7778 states have internal predecessors, (10666), 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) [2022-03-17 19:05:36,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7783 states to 7783 states and 10670 transitions. [2022-03-17 19:05:36,325 INFO L78 Accepts]: Start accepts. Automaton has 7783 states and 10670 transitions. Word has length 320 [2022-03-17 19:05:36,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:36,325 INFO L478 AbstractCegarLoop]: Abstraction has 7783 states and 10670 transitions. [2022-03-17 19:05:36,325 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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) [2022-03-17 19:05:36,325 INFO L276 IsEmpty]: Start isEmpty. Operand 7783 states and 10670 transitions. [2022-03-17 19:05:36,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-03-17 19:05:36,332 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:36,333 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:36,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-17 19:05:36,546 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:05:36,547 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:36,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:36,547 INFO L85 PathProgramCache]: Analyzing trace with hash 968015447, now seen corresponding path program 1 times [2022-03-17 19:05:36,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:36,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378963920] [2022-03-17 19:05:36,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:36,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:36,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:36,877 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 193 proven. 13 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2022-03-17 19:05:36,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:36,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378963920] [2022-03-17 19:05:36,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378963920] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:05:36,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253025358] [2022-03-17 19:05:36,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:36,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:05:36,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:05:36,879 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) [2022-03-17 19:05:36,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 19:05:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:38,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-17 19:05:38,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:05:38,242 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:05:38,242 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 [2022-03-17 19:05:38,281 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:05:38,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2022-03-17 19:05:38,410 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 [2022-03-17 19:05:38,530 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 [2022-03-17 19:05:38,545 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 31 treesize of output 19 [2022-03-17 19:05:38,547 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 13 [2022-03-17 19:05:38,559 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 19:05:38,560 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 32 [2022-03-17 19:05:38,618 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-17 19:05:38,618 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-17 19:05:38,771 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 29 treesize of output 11 [2022-03-17 19:05:38,795 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 188 proven. 141 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2022-03-17 19:05:38,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:05:38,866 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 38 treesize of output 26 [2022-03-17 19:05:38,868 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 26 treesize of output 20 [2022-03-17 19:05:39,644 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_21 Int) (v_arrayElimCell_22 Int)) (not (= 8545 (select (select (store |c_#memory_int| v_arrayElimCell_21 (store (select |c_#memory_int| v_arrayElimCell_21) (+ 844 v_arrayElimCell_22) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-03-17 19:05:39,886 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-03-17 19:05:39,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253025358] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 19:05:39,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 19:05:39,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 10] total 14 [2022-03-17 19:05:39,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477867060] [2022-03-17 19:05:39,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:39,887 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:05:39,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:39,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:05:39,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=124, Unknown=1, NotChecked=22, Total=182 [2022-03-17 19:05:39,888 INFO L87 Difference]: Start difference. First operand 7783 states and 10670 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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) [2022-03-17 19:05:41,407 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 [] [2022-03-17 19:05:42,338 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_21 Int) (v_arrayElimCell_22 Int)) (not (= 8545 (select (select (store |c_#memory_int| v_arrayElimCell_21 (store (select |c_#memory_int| v_arrayElimCell_21) (+ 844 v_arrayElimCell_22) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) (not (= 8545 (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-03-17 19:05:42,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:42,463 INFO L93 Difference]: Finished difference Result 8631 states and 11798 transitions. [2022-03-17 19:05:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:05:42,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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 320 [2022-03-17 19:05:42,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:42,473 INFO L225 Difference]: With dead ends: 8631 [2022-03-17 19:05:42,473 INFO L226 Difference]: Without dead ends: 8631 [2022-03-17 19:05:42,473 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 640 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=42, Invalid=146, Unknown=2, NotChecked=50, Total=240 [2022-03-17 19:05:42,474 INFO L912 BasicCegarLoop]: 146 mSDtfsCounter, 112 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 254 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:42,474 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 505 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 238 Invalid, 0 Unknown, 254 Unchecked, 1.8s Time] [2022-03-17 19:05:42,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8631 states. [2022-03-17 19:05:42,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8631 to 7609. [2022-03-17 19:05:42,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7609 states, 7604 states have (on average 1.3711204629142557) internal successors, (10426), 7604 states have internal predecessors, (10426), 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) [2022-03-17 19:05:42,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7609 states to 7609 states and 10430 transitions. [2022-03-17 19:05:42,567 INFO L78 Accepts]: Start accepts. Automaton has 7609 states and 10430 transitions. Word has length 320 [2022-03-17 19:05:42,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:42,567 INFO L478 AbstractCegarLoop]: Abstraction has 7609 states and 10430 transitions. [2022-03-17 19:05:42,568 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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) [2022-03-17 19:05:42,568 INFO L276 IsEmpty]: Start isEmpty. Operand 7609 states and 10430 transitions. [2022-03-17 19:05:42,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-03-17 19:05:42,575 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:42,575 INFO L500 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, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:42,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-17 19:05:42,776 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,SelfDestructingSolverStorable73 [2022-03-17 19:05:42,777 INFO L403 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:42,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:42,777 INFO L85 PathProgramCache]: Analyzing trace with hash 67046501, now seen corresponding path program 1 times [2022-03-17 19:05:42,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:42,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384310088] [2022-03-17 19:05:42,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:42,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:43,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:43,233 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 905 trivial. 0 not checked. [2022-03-17 19:05:43,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:43,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384310088] [2022-03-17 19:05:43,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384310088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:05:43,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:05:43,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 19:05:43,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935105309] [2022-03-17 19:05:43,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:05:43,234 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 19:05:43,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:05:43,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 19:05:43,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-17 19:05:43,234 INFO L87 Difference]: Start difference. First operand 7609 states and 10430 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) [2022-03-17 19:05:44,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:46,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:48,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:51,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:53,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:05:53,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:05:53,878 INFO L93 Difference]: Finished difference Result 7617 states and 10440 transitions. [2022-03-17 19:05:53,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 19:05:53,878 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 324 [2022-03-17 19:05:53,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:05:53,886 INFO L225 Difference]: With dead ends: 7617 [2022-03-17 19:05:53,886 INFO L226 Difference]: Without dead ends: 7609 [2022-03-17 19:05:53,886 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-17 19:05:53,886 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:05:53,886 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 441 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2022-03-17 19:05:53,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7609 states. [2022-03-17 19:05:53,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7609 to 7609. [2022-03-17 19:05:53,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7609 states, 7604 states have (on average 1.3709889531825354) internal successors, (10425), 7604 states have internal predecessors, (10425), 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) [2022-03-17 19:05:53,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7609 states to 7609 states and 10429 transitions. [2022-03-17 19:05:53,962 INFO L78 Accepts]: Start accepts. Automaton has 7609 states and 10429 transitions. Word has length 324 [2022-03-17 19:05:53,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:05:53,963 INFO L478 AbstractCegarLoop]: Abstraction has 7609 states and 10429 transitions. [2022-03-17 19:05:53,963 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) [2022-03-17 19:05:53,963 INFO L276 IsEmpty]: Start isEmpty. Operand 7609 states and 10429 transitions. [2022-03-17 19:05:53,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-03-17 19:05:53,970 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:05:53,970 INFO L500 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, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:05:53,970 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-17 19:05:53,970 INFO L403 AbstractCegarLoop]: === Iteration 76 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:05:53,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:05:53,971 INFO L85 PathProgramCache]: Analyzing trace with hash -762602492, now seen corresponding path program 1 times [2022-03-17 19:05:53,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:05:53,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261620419] [2022-03-17 19:05:53,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:53,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:05:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:55,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:05:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:55,012 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 399 proven. 413 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-17 19:05:55,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:05:55,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261620419] [2022-03-17 19:05:55,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261620419] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:05:55,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33180863] [2022-03-17 19:05:55,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:05:55,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:05:55,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:05:55,014 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) [2022-03-17 19:05:55,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-17 19:05:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:05:56,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 101 conjunts are in the unsatisfiable core [2022-03-17 19:05:56,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:05:56,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:56,569 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 [2022-03-17 19:05:56,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:56,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:56,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:56,725 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 19:05:56,726 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-17 19:05:56,862 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 9 treesize of output 3 [2022-03-17 19:05:56,871 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 6 treesize of output 5 [2022-03-17 19:05:56,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:56,975 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 45 treesize of output 44 [2022-03-17 19:05:56,995 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-17 19:05:56,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-17 19:05:56,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:57,000 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 73 treesize of output 66 [2022-03-17 19:05:57,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:57,644 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 64 treesize of output 57 [2022-03-17 19:05:57,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:57,661 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-17 19:05:57,662 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-17 19:05:57,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:57,666 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 58 treesize of output 51 [2022-03-17 19:05:57,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:57,721 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 58 treesize of output 51 [2022-03-17 19:05:57,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:57,741 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 19:05:57,742 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-17 19:05:57,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:57,746 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 80 treesize of output 67 [2022-03-17 19:05:58,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:58,558 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 19:05:58,559 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 160 treesize of output 155 [2022-03-17 19:05:58,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:05:58,594 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 19:05:58,595 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 137 treesize of output 132 [2022-03-17 19:05:58,637 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-03-17 19:05:58,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-03-17 19:06:01,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,921 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 289 treesize of output 247 [2022-03-17 19:06:01,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,930 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 289 treesize of output 247 [2022-03-17 19:06:01,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:01,958 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-03-17 19:06:01,958 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 2 case distinctions, treesize of input 289 treesize of output 293 [2022-03-17 19:06:55,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:55,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:55,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:55,258 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 284 treesize of output 238 [2022-03-17 19:06:55,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:55,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:55,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:55,268 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 284 treesize of output 238 [2022-03-17 19:06:55,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:55,290 INFO L356 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2022-03-17 19:06:55,291 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 284 treesize of output 274 [2022-03-17 19:06:56,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:56,847 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 0 case distinctions, treesize of input 150 treesize of output 114 [2022-03-17 19:06:56,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:56,851 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 0 case distinctions, treesize of input 114 treesize of output 72 [2022-03-17 19:06:56,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:56,874 INFO L356 Elim1Store]: treesize reduction 143, result has 11.7 percent of original size [2022-03-17 19:06:56,875 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 91 treesize of output 87 [2022-03-17 19:06:56,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:56,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:56,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:06:56,928 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 19:06:56,928 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 [2022-03-17 19:06:57,099 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 19:06:57,100 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 23 treesize of output 11 [2022-03-17 19:06:57,129 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 453 proven. 331 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-17 19:06:57,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:07:00,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:07:00,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:07:00,287 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 0 case distinctions, treesize of input 268 treesize of output 214 [2022-03-17 19:07:00,981 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-17 19:07:00,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33180863] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 19:07:00,981 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 19:07:00,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 13] total 46 [2022-03-17 19:07:00,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388434158] [2022-03-17 19:07:00,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 19:07:00,982 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-03-17 19:07:00,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:00,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-03-17 19:07:00,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=1791, Unknown=0, NotChecked=0, Total=2070 [2022-03-17 19:07:00,983 INFO L87 Difference]: Start difference. First operand 7609 states and 10429 transitions. Second operand has 46 states, 46 states have (on average 13.065217391304348) internal successors, (601), 44 states have internal predecessors, (601), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:02,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:04,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:06,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:08,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:10,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:12,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:13,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:16,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:31,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:31,217 INFO L93 Difference]: Finished difference Result 28677 states and 38461 transitions. [2022-03-17 19:07:31,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-03-17 19:07:31,218 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 13.065217391304348) internal successors, (601), 44 states have internal predecessors, (601), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 324 [2022-03-17 19:07:31,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:31,240 INFO L225 Difference]: With dead ends: 28677 [2022-03-17 19:07:31,240 INFO L226 Difference]: Without dead ends: 28677 [2022-03-17 19:07:31,242 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 925 GetRequests, 731 SyntacticMatches, 5 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12710 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=4159, Invalid=32131, Unknown=0, NotChecked=0, Total=36290 [2022-03-17 19:07:31,242 INFO L912 BasicCegarLoop]: 632 mSDtfsCounter, 3224 mSDsluCounter, 9443 mSDsCounter, 0 mSdLazyCounter, 9606 mSolverCounterSat, 508 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 10075 SdHoareTripleChecker+Invalid, 12656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 9606 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 2539 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:31,242 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3224 Valid, 10075 Invalid, 12656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 9606 Invalid, 3 Unknown, 2539 Unchecked, 23.1s Time] [2022-03-17 19:07:31,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28677 states. [2022-03-17 19:07:31,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28677 to 16886. [2022-03-17 19:07:31,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16886 states, 16881 states have (on average 1.366625199928914) internal successors, (23070), 16881 states have internal predecessors, (23070), 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) [2022-03-17 19:07:31,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16886 states to 16886 states and 23074 transitions. [2022-03-17 19:07:31,416 INFO L78 Accepts]: Start accepts. Automaton has 16886 states and 23074 transitions. Word has length 324 [2022-03-17 19:07:31,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:31,416 INFO L478 AbstractCegarLoop]: Abstraction has 16886 states and 23074 transitions. [2022-03-17 19:07:31,416 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 13.065217391304348) internal successors, (601), 44 states have internal predecessors, (601), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:31,416 INFO L276 IsEmpty]: Start isEmpty. Operand 16886 states and 23074 transitions. [2022-03-17 19:07:31,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-03-17 19:07:31,427 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:31,427 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:31,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-17 19:07:31,643 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:07:31,643 INFO L403 AbstractCegarLoop]: === Iteration 77 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:31,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:31,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1527275854, now seen corresponding path program 1 times [2022-03-17 19:07:31,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:31,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236185764] [2022-03-17 19:07:31,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:31,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:31,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:31,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-03-17 19:07:31,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:31,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236185764] [2022-03-17 19:07:31,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236185764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:31,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:31,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:07:31,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698646603] [2022-03-17 19:07:31,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:31,832 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:07:31,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:31,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:07:31,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:07:31,833 INFO L87 Difference]: Start difference. First operand 16886 states and 23074 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) [2022-03-17 19:07:33,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:35,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:37,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:38,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:38,376 INFO L93 Difference]: Finished difference Result 17849 states and 23884 transitions. [2022-03-17 19:07:38,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:07:38,376 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 324 [2022-03-17 19:07:38,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:38,392 INFO L225 Difference]: With dead ends: 17849 [2022-03-17 19:07:38,392 INFO L226 Difference]: Without dead ends: 17849 [2022-03-17 19:07:38,392 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:07:38,393 INFO L912 BasicCegarLoop]: 150 mSDtfsCounter, 113 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:38,393 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 413 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-17 19:07:38,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17849 states. [2022-03-17 19:07:38,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17849 to 16886. [2022-03-17 19:07:38,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16886 states, 16881 states have (on average 1.3402642023576803) internal successors, (22625), 16881 states have internal predecessors, (22625), 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) [2022-03-17 19:07:38,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16886 states to 16886 states and 22629 transitions. [2022-03-17 19:07:38,563 INFO L78 Accepts]: Start accepts. Automaton has 16886 states and 22629 transitions. Word has length 324 [2022-03-17 19:07:38,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:38,563 INFO L478 AbstractCegarLoop]: Abstraction has 16886 states and 22629 transitions. [2022-03-17 19:07:38,563 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) [2022-03-17 19:07:38,563 INFO L276 IsEmpty]: Start isEmpty. Operand 16886 states and 22629 transitions. [2022-03-17 19:07:38,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-03-17 19:07:38,576 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:38,576 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:38,576 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-17 19:07:38,576 INFO L403 AbstractCegarLoop]: === Iteration 78 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:38,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:38,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1144040136, now seen corresponding path program 1 times [2022-03-17 19:07:38,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:38,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499908370] [2022-03-17 19:07:38,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:38,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:38,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 688 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-03-17 19:07:38,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:38,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499908370] [2022-03-17 19:07:38,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499908370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:38,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:38,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:07:38,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707353820] [2022-03-17 19:07:38,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:38,829 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:07:38,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:38,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:07:38,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:07:38,830 INFO L87 Difference]: Start difference. First operand 16886 states and 22629 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:41,110 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 [] [2022-03-17 19:07:42,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:44,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:44,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:44,891 INFO L93 Difference]: Finished difference Result 17081 states and 22793 transitions. [2022-03-17 19:07:44,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:07:44,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 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 [2022-03-17 19:07:44,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:44,909 INFO L225 Difference]: With dead ends: 17081 [2022-03-17 19:07:44,909 INFO L226 Difference]: Without dead ends: 17081 [2022-03-17 19:07:44,909 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:07:44,909 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 36 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:44,909 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 517 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 428 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 19:07:44,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17081 states. [2022-03-17 19:07:45,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17081 to 16886. [2022-03-17 19:07:45,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16886 states, 16881 states have (on average 1.3376577216989516) internal successors, (22581), 16881 states have internal predecessors, (22581), 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) [2022-03-17 19:07:45,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16886 states to 16886 states and 22585 transitions. [2022-03-17 19:07:45,072 INFO L78 Accepts]: Start accepts. Automaton has 16886 states and 22585 transitions. Word has length 325 [2022-03-17 19:07:45,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:45,073 INFO L478 AbstractCegarLoop]: Abstraction has 16886 states and 22585 transitions. [2022-03-17 19:07:45,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:07:45,073 INFO L276 IsEmpty]: Start isEmpty. Operand 16886 states and 22585 transitions. [2022-03-17 19:07:45,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-03-17 19:07:45,085 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:45,086 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:45,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-17 19:07:45,086 INFO L403 AbstractCegarLoop]: === Iteration 79 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:45,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:45,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1094574037, now seen corresponding path program 1 times [2022-03-17 19:07:45,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:45,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405371795] [2022-03-17 19:07:45,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:45,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:45,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 698 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-03-17 19:07:45,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:45,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405371795] [2022-03-17 19:07:45,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405371795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:45,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:45,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:07:45,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519797749] [2022-03-17 19:07:45,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:45,336 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:07:45,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:45,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:07:45,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:07:45,336 INFO L87 Difference]: Start difference. First operand 16886 states and 22585 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) [2022-03-17 19:07:46,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:48,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:50,909 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 [] [2022-03-17 19:07:52,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:52,386 INFO L93 Difference]: Finished difference Result 17368 states and 22792 transitions. [2022-03-17 19:07:52,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:07:52,386 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 326 [2022-03-17 19:07:52,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:52,402 INFO L225 Difference]: With dead ends: 17368 [2022-03-17 19:07:52,402 INFO L226 Difference]: Without dead ends: 17349 [2022-03-17 19:07:52,402 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:07:52,402 INFO L912 BasicCegarLoop]: 134 mSDtfsCounter, 119 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:52,403 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 376 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 462 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 19:07:52,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17349 states. [2022-03-17 19:07:52,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17349 to 11844. [2022-03-17 19:07:52,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11844 states, 11839 states have (on average 1.3242672523017147) internal successors, (15678), 11839 states have internal predecessors, (15678), 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) [2022-03-17 19:07:52,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11844 states to 11844 states and 15682 transitions. [2022-03-17 19:07:52,522 INFO L78 Accepts]: Start accepts. Automaton has 11844 states and 15682 transitions. Word has length 326 [2022-03-17 19:07:52,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:52,522 INFO L478 AbstractCegarLoop]: Abstraction has 11844 states and 15682 transitions. [2022-03-17 19:07:52,522 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) [2022-03-17 19:07:52,522 INFO L276 IsEmpty]: Start isEmpty. Operand 11844 states and 15682 transitions. [2022-03-17 19:07:52,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-03-17 19:07:52,530 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:52,530 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:07:52,530 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-17 19:07:52,530 INFO L403 AbstractCegarLoop]: === Iteration 80 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:52,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:52,531 INFO L85 PathProgramCache]: Analyzing trace with hash 2043372826, now seen corresponding path program 1 times [2022-03-17 19:07:52,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:52,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063606086] [2022-03-17 19:07:52,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:52,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:52,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:52,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 516 proven. 114 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-03-17 19:07:52,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:52,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063606086] [2022-03-17 19:07:52,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063606086] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:07:52,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024943402] [2022-03-17 19:07:52,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:52,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:07:52,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:07:52,802 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:07:52,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-17 19:07:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:54,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-17 19:07:54,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:07:54,361 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:07:54,362 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 [2022-03-17 19:07:54,405 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:07:54,405 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 [2022-03-17 19:07:54,665 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:07:54,665 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 [2022-03-17 19:07:54,710 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 [2022-03-17 19:07:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 502 proven. 112 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2022-03-17 19:07:54,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:07:55,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 507 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2022-03-17 19:07:55,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024943402] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 19:07:55,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 19:07:55,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 12 [2022-03-17 19:07:55,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857211466] [2022-03-17 19:07:55,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:55,124 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:07:55,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:55,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:07:55,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-17 19:07:55,125 INFO L87 Difference]: Start difference. First operand 11844 states and 15682 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2022-03-17 19:07:55,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:07:55,738 INFO L93 Difference]: Finished difference Result 12371 states and 16194 transitions. [2022-03-17 19:07:55,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:07:55,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 326 [2022-03-17 19:07:55,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:07:55,748 INFO L225 Difference]: With dead ends: 12371 [2022-03-17 19:07:55,749 INFO L226 Difference]: Without dead ends: 12371 [2022-03-17 19:07:55,749 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 651 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-03-17 19:07:55,749 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 74 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-17 19:07:55,749 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 510 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-17 19:07:55,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12371 states. [2022-03-17 19:07:55,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12371 to 11693. [2022-03-17 19:07:55,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11693 states, 11688 states have (on average 1.3129705681040382) internal successors, (15346), 11688 states have internal predecessors, (15346), 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) [2022-03-17 19:07:55,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11693 states to 11693 states and 15350 transitions. [2022-03-17 19:07:55,856 INFO L78 Accepts]: Start accepts. Automaton has 11693 states and 15350 transitions. Word has length 326 [2022-03-17 19:07:55,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:07:55,856 INFO L478 AbstractCegarLoop]: Abstraction has 11693 states and 15350 transitions. [2022-03-17 19:07:55,856 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2022-03-17 19:07:55,856 INFO L276 IsEmpty]: Start isEmpty. Operand 11693 states and 15350 transitions. [2022-03-17 19:07:55,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-03-17 19:07:55,864 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:07:55,864 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 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] [2022-03-17 19:07:55,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-17 19:07:56,083 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:07:56,083 INFO L403 AbstractCegarLoop]: === Iteration 81 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:07:56,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:07:56,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1139404425, now seen corresponding path program 1 times [2022-03-17 19:07:56,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:07:56,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42362288] [2022-03-17 19:07:56,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:07:56,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:07:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:56,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:07:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:07:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-17 19:07:56,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:07:56,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42362288] [2022-03-17 19:07:56,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42362288] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:07:56,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:07:56,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:07:56,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461144540] [2022-03-17 19:07:56,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:07:56,214 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:07:56,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:07:56,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:07:56,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:07:56,214 INFO L87 Difference]: Start difference. First operand 11693 states and 15350 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) [2022-03-17 19:07:57,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:07:59,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:01,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:08:03,143 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 [] [2022-03-17 19:08:03,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:08:03,461 INFO L93 Difference]: Finished difference Result 11510 states and 15105 transitions. [2022-03-17 19:08:03,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:08:03,462 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 335 [2022-03-17 19:08:03,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:08:03,470 INFO L225 Difference]: With dead ends: 11510 [2022-03-17 19:08:03,470 INFO L226 Difference]: Without dead ends: 11082 [2022-03-17 19:08:03,470 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:08:03,470 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 10 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:08:03,470 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 553 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 367 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-17 19:08:03,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11082 states. [2022-03-17 19:08:03,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11082 to 10919. [2022-03-17 19:08:03,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10919 states, 10914 states have (on average 1.3120762323621038) internal successors, (14320), 10914 states have internal predecessors, (14320), 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) [2022-03-17 19:08:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10919 states to 10919 states and 14324 transitions. [2022-03-17 19:08:03,544 INFO L78 Accepts]: Start accepts. Automaton has 10919 states and 14324 transitions. Word has length 335 [2022-03-17 19:08:03,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:08:03,613 INFO L478 AbstractCegarLoop]: Abstraction has 10919 states and 14324 transitions. [2022-03-17 19:08:03,613 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) [2022-03-17 19:08:03,613 INFO L276 IsEmpty]: Start isEmpty. Operand 10919 states and 14324 transitions. [2022-03-17 19:08:03,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-03-17 19:08:03,620 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:08:03,620 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:08:03,620 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-17 19:08:03,620 INFO L403 AbstractCegarLoop]: === Iteration 82 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:08:03,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:08:03,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1477891400, now seen corresponding path program 1 times [2022-03-17 19:08:03,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:08:03,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403697766] [2022-03-17 19:08:03,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:03,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:08:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:05,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:08:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:05,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1117 backedges. 391 proven. 643 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-03-17 19:08:05,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:08:05,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403697766] [2022-03-17 19:08:05,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403697766] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:08:05,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601101856] [2022-03-17 19:08:05,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:08:05,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:08:05,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:08:05,685 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:08:05,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-17 19:08:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:08:07,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 1845 conjuncts, 124 conjunts are in the unsatisfiable core [2022-03-17 19:08:07,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:08:07,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:08:07,524 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 19:08:07,524 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 19 treesize of output 7 [2022-03-17 19:08:07,743 INFO L356 Elim1Store]: treesize reduction 73, result has 37.1 percent of original size [2022-03-17 19:08:07,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 232 [2022-03-17 19:08:07,810 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-03-17 19:08:07,812 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-17 19:08:07,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-17 19:08:08,012 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:08:08,013 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_#memory_$Pointer$.base_1145| input size 99 context size 99 output size 99 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:184) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:166) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:154) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:110) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:95) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:90) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:904) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:865) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:783) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:425) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:596) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-17 19:08:08,016 INFO L158 Benchmark]: Toolchain (without parser) took 531381.11ms. Allocated memory was 191.9MB in the beginning and 588.3MB in the end (delta: 396.4MB). Free memory was 167.3MB in the beginning and 351.1MB in the end (delta: -183.8MB). Peak memory consumption was 211.8MB. Max. memory is 8.0GB. [2022-03-17 19:08:08,017 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 156.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-17 19:08:08,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.86ms. Allocated memory was 191.9MB in the beginning and 235.9MB in the end (delta: 44.0MB). Free memory was 167.1MB in the beginning and 190.6MB in the end (delta: -23.5MB). Peak memory consumption was 24.9MB. Max. memory is 8.0GB. [2022-03-17 19:08:08,017 INFO L158 Benchmark]: Boogie Preprocessor took 111.37ms. Allocated memory is still 235.9MB. Free memory was 190.6MB in the beginning and 182.9MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-17 19:08:08,017 INFO L158 Benchmark]: RCFGBuilder took 1349.69ms. Allocated memory is still 235.9MB. Free memory was 182.9MB in the beginning and 175.2MB in the end (delta: 7.7MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2022-03-17 19:08:08,017 INFO L158 Benchmark]: IcfgTransformer took 32.55ms. Allocated memory is still 235.9MB. Free memory was 175.2MB in the beginning and 169.4MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-03-17 19:08:08,017 INFO L158 Benchmark]: TraceAbstraction took 529414.13ms. Allocated memory was 235.9MB in the beginning and 588.3MB in the end (delta: 352.3MB). Free memory was 168.9MB in the beginning and 351.1MB in the end (delta: -182.2MB). Peak memory consumption was 169.6MB. Max. memory is 8.0GB. [2022-03-17 19:08:08,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 156.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 469.86ms. Allocated memory was 191.9MB in the beginning and 235.9MB in the end (delta: 44.0MB). Free memory was 167.1MB in the beginning and 190.6MB in the end (delta: -23.5MB). Peak memory consumption was 24.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 111.37ms. Allocated memory is still 235.9MB. Free memory was 190.6MB in the beginning and 182.9MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1349.69ms. Allocated memory is still 235.9MB. Free memory was 182.9MB in the beginning and 175.2MB in the end (delta: 7.7MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. * IcfgTransformer took 32.55ms. Allocated memory is still 235.9MB. Free memory was 175.2MB in the beginning and 169.4MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * TraceAbstraction took 529414.13ms. Allocated memory was 235.9MB in the beginning and 588.3MB in the end (delta: 352.3MB). Free memory was 168.9MB in the beginning and 351.1MB in the end (delta: -182.2MB). Peak memory consumption was 169.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_#memory_$Pointer$.base_1145| input size 99 context size 99 output size 99 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#memory_$Pointer$.base_1145| input size 99 context size 99 output size 99: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-17 19:08:08,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...