/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 23:39:27,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 23:39:27,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 23:39:27,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 23:39:27,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 23:39:27,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 23:39:27,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 23:39:27,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 23:39:27,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 23:39:27,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 23:39:27,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 23:39:27,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 23:39:27,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 23:39:27,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 23:39:27,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 23:39:27,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 23:39:27,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 23:39:27,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 23:39:27,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 23:39:27,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 23:39:27,553 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 23:39:27,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 23:39:27,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 23:39:27,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 23:39:27,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 23:39:27,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 23:39:27,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 23:39:27,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 23:39:27,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 23:39:27,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 23:39:27,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 23:39:27,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 23:39:27,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 23:39:27,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 23:39:27,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 23:39:27,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 23:39:27,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 23:39:27,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 23:39:27,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 23:39:27,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 23:39:27,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 23:39:27,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 23:39:27,573 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-17 23:39:27,602 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 23:39:27,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 23:39:27,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 23:39:27,605 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 23:39:27,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 23:39:27,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 23:39:27,606 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 23:39:27,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 23:39:27,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 23:39:27,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 23:39:27,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 23:39:27,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 23:39:27,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 23:39:27,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 23:39:27,607 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 23:39:27,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 23:39:27,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 23:39:27,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 23:39:27,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 23:39:27,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:39:27,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 23:39:27,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 23:39:27,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 23:39:27,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 23:39:27,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 23:39:27,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 23:39:27,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 23:39:27,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 23:39:27,610 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 23:39:27,610 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 23:39:27,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 23:39:27,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 23:39:27,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 23:39:27,852 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 23:39:27,853 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 23:39:27,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-03-17 23:39:27,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed6002b21/3f452ec35cbf4ff68669713a37eea605/FLAG4260dcad4 [2022-03-17 23:39:28,401 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 23:39:28,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-03-17 23:39:28,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed6002b21/3f452ec35cbf4ff68669713a37eea605/FLAG4260dcad4 [2022-03-17 23:39:28,715 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed6002b21/3f452ec35cbf4ff68669713a37eea605 [2022-03-17 23:39:28,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 23:39:28,718 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 23:39:28,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 23:39:28,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 23:39:28,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 23:39:28,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:39:28" (1/1) ... [2022-03-17 23:39:28,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c50f127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:28, skipping insertion in model container [2022-03-17 23:39:28,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:39:28" (1/1) ... [2022-03-17 23:39:28,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 23:39:28,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 23:39:29,095 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.14.i.cil-2.c[76259,76272] [2022-03-17 23:39:29,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:39:29,113 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 23:39:29,231 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.14.i.cil-2.c[76259,76272] [2022-03-17 23:39:29,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:39:29,258 INFO L208 MainTranslator]: Completed translation [2022-03-17 23:39:29,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:29 WrapperNode [2022-03-17 23:39:29,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 23:39:29,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 23:39:29,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 23:39:29,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 23:39:29,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:29" (1/1) ... [2022-03-17 23:39:29,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:29" (1/1) ... [2022-03-17 23:39:29,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:29" (1/1) ... [2022-03-17 23:39:29,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:29" (1/1) ... [2022-03-17 23:39:29,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:29" (1/1) ... [2022-03-17 23:39:29,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:29" (1/1) ... [2022-03-17 23:39:29,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:29" (1/1) ... [2022-03-17 23:39:29,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 23:39:29,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 23:39:29,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 23:39:29,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 23:39:29,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:29" (1/1) ... [2022-03-17 23:39:29,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:39:29,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:39:29,425 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 23:39:29,449 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 23:39:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 23:39:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 23:39:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 23:39:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 23:39:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 23:39:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 23:39:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 23:39:29,466 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 23:39:29,467 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 23:39:29,467 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 23:39:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 23:39:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 23:39:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 23:39:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 23:39:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 23:39:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 23:39:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 23:39:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 23:39:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 23:39:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 23:39:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 23:39:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 23:39:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 23:39:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 23:39:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 23:39:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 23:39:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 23:39:29,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 23:39:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 23:39:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 23:39:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 23:39:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 23:39:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 23:39:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 23:39:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 23:39:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 23:39:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 23:39:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 23:39:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 23:39:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 23:39:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 23:39:29,603 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 23:39:29,604 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 23:39:30,565 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:39:31,047 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 23:39:31,047 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 23:39:31,060 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 23:39:31,070 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 23:39:31,070 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 23:39:31,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:39:31 BoogieIcfgContainer [2022-03-17 23:39:31,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 23:39:31,073 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 23:39:31,073 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 23:39:31,074 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 23:39:31,076 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:39:31" (1/1) ... [2022-03-17 23:39:31,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:39:31 BasicIcfg [2022-03-17 23:39:31,138 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 23:39:31,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 23:39:31,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 23:39:31,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 23:39:31,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:39:28" (1/4) ... [2022-03-17 23:39:31,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcec4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:39:31, skipping insertion in model container [2022-03-17 23:39:31,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:39:29" (2/4) ... [2022-03-17 23:39:31,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcec4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:39:31, skipping insertion in model container [2022-03-17 23:39:31,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:39:31" (3/4) ... [2022-03-17 23:39:31,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcec4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:39:31, skipping insertion in model container [2022-03-17 23:39:31,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:39:31" (4/4) ... [2022-03-17 23:39:31,146 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-2.cqvasr [2022-03-17 23:39:31,151 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 23:39:31,151 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 23:39:31,193 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 23:39:31,197 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-17 23:39:31,197 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 23:39:31,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 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 23:39:31,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-17 23:39:31,233 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:31,234 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:31,234 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:31,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:31,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1842589219, now seen corresponding path program 1 times [2022-03-17 23:39:31,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:31,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005026913] [2022-03-17 23:39:31,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:31,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:31,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:31,796 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 23:39:31,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:31,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005026913] [2022-03-17 23:39:31,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005026913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:31,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:31,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:31,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377007920] [2022-03-17 23:39:31,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:31,807 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:31,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:31,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:31,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:31,841 INFO L87 Difference]: Start difference. First operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:33,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:33,758 INFO L93 Difference]: Finished difference Result 344 states and 580 transitions. [2022-03-17 23:39:33,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:33,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-17 23:39:33,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:33,772 INFO L225 Difference]: With dead ends: 344 [2022-03-17 23:39:33,772 INFO L226 Difference]: Without dead ends: 175 [2022-03-17 23:39:33,777 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 23:39:33,780 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 34 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:33,783 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 637 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-17 23:39:33,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-03-17 23:39:33,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 158. [2022-03-17 23:39:33,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 153 states have (on average 1.5686274509803921) internal successors, (240), 153 states have internal predecessors, (240), 3 states have call successors, (3), 3 states 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 23:39:33,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 244 transitions. [2022-03-17 23:39:33,826 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 244 transitions. Word has length 49 [2022-03-17 23:39:33,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:33,827 INFO L478 AbstractCegarLoop]: Abstraction has 158 states and 244 transitions. [2022-03-17 23:39:33,827 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:33,827 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 244 transitions. [2022-03-17 23:39:33,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-17 23:39:33,829 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:33,829 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:33,830 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 23:39:33,830 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:33,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:33,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1221390176, now seen corresponding path program 1 times [2022-03-17 23:39:33,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:33,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970328812] [2022-03-17 23:39:33,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:33,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:33,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:33,990 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 23:39:33,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:33,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970328812] [2022-03-17 23:39:33,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970328812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:33,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:33,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:33,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666844801] [2022-03-17 23:39:33,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:33,997 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:33,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:33,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:33,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:33,998 INFO L87 Difference]: Start difference. First operand 158 states and 244 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:36,430 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 23:39:38,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:40,098 WARN L534 Checker$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 23:39:40,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:40,886 INFO L93 Difference]: Finished difference Result 413 states and 644 transitions. [2022-03-17 23:39:40,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:40,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-03-17 23:39:40,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:40,889 INFO L225 Difference]: With dead ends: 413 [2022-03-17 23:39:40,889 INFO L226 Difference]: Without dead ends: 281 [2022-03-17 23:39:40,890 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 23:39:40,891 INFO L912 BasicCegarLoop]: 281 mSDtfsCounter, 155 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:40,892 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 680 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 642 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 23:39:40,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-03-17 23:39:40,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 174. [2022-03-17 23:39:40,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 169 states have (on average 1.5680473372781065) internal successors, (265), 169 states have internal predecessors, (265), 3 states have call successors, (3), 3 states 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 23:39:40,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 269 transitions. [2022-03-17 23:39:40,907 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 269 transitions. Word has length 62 [2022-03-17 23:39:40,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:40,907 INFO L478 AbstractCegarLoop]: Abstraction has 174 states and 269 transitions. [2022-03-17 23:39:40,908 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:40,908 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 269 transitions. [2022-03-17 23:39:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:39:40,910 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:40,910 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:40,910 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 23:39:40,910 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:40,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:40,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1316073597, now seen corresponding path program 1 times [2022-03-17 23:39:40,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:40,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164249770] [2022-03-17 23:39:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:40,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:41,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:41,125 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 23:39:41,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:41,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164249770] [2022-03-17 23:39:41,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164249770] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:41,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:41,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:41,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660084960] [2022-03-17 23:39:41,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:41,127 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:41,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:41,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:41,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:41,128 INFO L87 Difference]: Start difference. First operand 174 states and 269 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:42,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:44,207 WARN L534 Checker$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 23:39:46,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:48,256 WARN L534 Checker$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 23:39:48,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:48,684 INFO L93 Difference]: Finished difference Result 338 states and 521 transitions. [2022-03-17 23:39:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:48,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-17 23:39:48,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:48,687 INFO L225 Difference]: With dead ends: 338 [2022-03-17 23:39:48,687 INFO L226 Difference]: Without dead ends: 190 [2022-03-17 23:39:48,688 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 23:39:48,689 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 28 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:48,689 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 515 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 369 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-03-17 23:39:48,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-03-17 23:39:48,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 174. [2022-03-17 23:39:48,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 169 states have (on average 1.5621301775147929) internal successors, (264), 169 states have internal predecessors, (264), 3 states have call successors, (3), 3 states 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 23:39:48,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 268 transitions. [2022-03-17 23:39:48,708 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 268 transitions. Word has length 63 [2022-03-17 23:39:48,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:48,708 INFO L478 AbstractCegarLoop]: Abstraction has 174 states and 268 transitions. [2022-03-17 23:39:48,708 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:48,708 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 268 transitions. [2022-03-17 23:39:48,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:39:48,715 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:48,715 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:48,715 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 23:39:48,716 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:48,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:48,716 INFO L85 PathProgramCache]: Analyzing trace with hash -528481437, now seen corresponding path program 1 times [2022-03-17 23:39:48,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:48,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150779752] [2022-03-17 23:39:48,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:48,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:48,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:48,879 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 23:39:48,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:48,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150779752] [2022-03-17 23:39:48,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150779752] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:48,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:48,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:48,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820279640] [2022-03-17 23:39:48,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:48,881 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:48,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:48,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:48,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:48,882 INFO L87 Difference]: Start difference. First operand 174 states and 268 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:50,054 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 23:39:52,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:52,532 INFO L93 Difference]: Finished difference Result 338 states and 520 transitions. [2022-03-17 23:39:52,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:52,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-17 23:39:52,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:52,534 INFO L225 Difference]: With dead ends: 338 [2022-03-17 23:39:52,534 INFO L226 Difference]: Without dead ends: 190 [2022-03-17 23:39:52,535 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 23:39:52,536 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 26 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:52,536 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 515 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-17 23:39:52,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-03-17 23:39:52,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 174. [2022-03-17 23:39:52,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 169 states have (on average 1.5562130177514792) internal successors, (263), 169 states have internal predecessors, (263), 3 states have call successors, (3), 3 states 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 23:39:52,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 267 transitions. [2022-03-17 23:39:52,544 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 267 transitions. Word has length 63 [2022-03-17 23:39:52,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:52,545 INFO L478 AbstractCegarLoop]: Abstraction has 174 states and 267 transitions. [2022-03-17 23:39:52,545 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 267 transitions. [2022-03-17 23:39:52,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:39:52,546 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:52,546 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:52,546 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 23:39:52,546 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:52,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:52,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1238531875, now seen corresponding path program 1 times [2022-03-17 23:39:52,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:52,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050971195] [2022-03-17 23:39:52,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:52,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:52,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:52,672 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 23:39:52,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:52,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050971195] [2022-03-17 23:39:52,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050971195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:52,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:52,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:52,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220324299] [2022-03-17 23:39:52,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:52,674 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:52,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:52,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:52,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:52,675 INFO L87 Difference]: Start difference. First operand 174 states and 267 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:54,685 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 23:39:55,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:55,288 INFO L93 Difference]: Finished difference Result 445 states and 693 transitions. [2022-03-17 23:39:55,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:55,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-17 23:39:55,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:55,291 INFO L225 Difference]: With dead ends: 445 [2022-03-17 23:39:55,291 INFO L226 Difference]: Without dead ends: 297 [2022-03-17 23:39:55,292 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 23:39:55,292 INFO L912 BasicCegarLoop]: 127 mSDtfsCounter, 154 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:55,293 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 372 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-17 23:39:55,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-03-17 23:39:55,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 191. [2022-03-17 23:39:55,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.5591397849462365) internal successors, (290), 186 states have internal predecessors, (290), 3 states have call successors, (3), 3 states 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 23:39:55,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 294 transitions. [2022-03-17 23:39:55,301 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 294 transitions. Word has length 63 [2022-03-17 23:39:55,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:55,302 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 294 transitions. [2022-03-17 23:39:55,302 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:55,302 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 294 transitions. [2022-03-17 23:39:55,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:39:55,303 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:55,303 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:55,303 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 23:39:55,304 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:55,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:55,304 INFO L85 PathProgramCache]: Analyzing trace with hash 780655619, now seen corresponding path program 1 times [2022-03-17 23:39:55,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:55,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412177979] [2022-03-17 23:39:55,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:55,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:55,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:55,433 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 23:39:55,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:55,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412177979] [2022-03-17 23:39:55,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412177979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:55,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:55,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:55,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665239452] [2022-03-17 23:39:55,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:55,439 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:55,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:55,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:55,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:55,441 INFO L87 Difference]: Start difference. First operand 191 states and 294 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:57,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:59,803 WARN L534 Checker$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 23:40:00,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:00,655 INFO L93 Difference]: Finished difference Result 369 states and 571 transitions. [2022-03-17 23:40:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:00,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-17 23:40:00,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:00,657 INFO L225 Difference]: With dead ends: 369 [2022-03-17 23:40:00,657 INFO L226 Difference]: Without dead ends: 204 [2022-03-17 23:40:00,658 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 23:40:00,659 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 18 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:00,659 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 521 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 23:40:00,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-03-17 23:40:00,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 191. [2022-03-17 23:40:00,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.553763440860215) internal successors, (289), 186 states have internal predecessors, (289), 3 states have call successors, (3), 3 states 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 23:40:00,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 293 transitions. [2022-03-17 23:40:00,665 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 293 transitions. Word has length 63 [2022-03-17 23:40:00,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:00,666 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 293 transitions. [2022-03-17 23:40:00,666 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:00,666 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 293 transitions. [2022-03-17 23:40:00,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:40:00,667 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:00,667 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:00,667 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 23:40:00,667 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:00,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:00,668 INFO L85 PathProgramCache]: Analyzing trace with hash 881220224, now seen corresponding path program 1 times [2022-03-17 23:40:00,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:00,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366869238] [2022-03-17 23:40:00,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:00,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:00,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:00,775 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 23:40:00,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:00,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366869238] [2022-03-17 23:40:00,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366869238] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:00,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:00,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:00,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090903249] [2022-03-17 23:40:00,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:00,776 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:00,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:00,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:00,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:00,777 INFO L87 Difference]: Start difference. First operand 191 states and 293 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:02,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:03,887 WARN L534 Checker$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 23:40:05,916 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 23:40:06,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:06,294 INFO L93 Difference]: Finished difference Result 369 states and 570 transitions. [2022-03-17 23:40:06,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:06,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 23:40:06,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:06,296 INFO L225 Difference]: With dead ends: 369 [2022-03-17 23:40:06,296 INFO L226 Difference]: Without dead ends: 204 [2022-03-17 23:40:06,296 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 23:40:06,297 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 22 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:06,297 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 521 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:40:06,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-03-17 23:40:06,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 191. [2022-03-17 23:40:06,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.5483870967741935) internal successors, (288), 186 states have internal predecessors, (288), 3 states have call successors, (3), 3 states 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 23:40:06,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 292 transitions. [2022-03-17 23:40:06,303 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 292 transitions. Word has length 64 [2022-03-17 23:40:06,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:06,303 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 292 transitions. [2022-03-17 23:40:06,303 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:06,303 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 292 transitions. [2022-03-17 23:40:06,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 23:40:06,304 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:06,304 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:06,304 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 23:40:06,304 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:06,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:06,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1193876863, now seen corresponding path program 1 times [2022-03-17 23:40:06,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:06,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729790597] [2022-03-17 23:40:06,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:06,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:06,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:06,436 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 23:40:06,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:06,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729790597] [2022-03-17 23:40:06,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729790597] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:06,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:06,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:06,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059121753] [2022-03-17 23:40:06,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:06,437 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:06,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:06,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:06,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:06,437 INFO L87 Difference]: Start difference. First operand 191 states and 292 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:09,264 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 23:40:11,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:12,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:13,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:13,088 INFO L93 Difference]: Finished difference Result 462 states and 717 transitions. [2022-03-17 23:40:13,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:13,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-17 23:40:13,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:13,090 INFO L225 Difference]: With dead ends: 462 [2022-03-17 23:40:13,090 INFO L226 Difference]: Without dead ends: 297 [2022-03-17 23:40:13,090 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 23:40:13,091 INFO L912 BasicCegarLoop]: 127 mSDtfsCounter, 156 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:13,091 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 372 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 485 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 23:40:13,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-03-17 23:40:13,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 191. [2022-03-17 23:40:13,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.532258064516129) internal successors, (285), 186 states have internal predecessors, (285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:13,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 289 transitions. [2022-03-17 23:40:13,098 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 289 transitions. Word has length 65 [2022-03-17 23:40:13,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:13,098 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 289 transitions. [2022-03-17 23:40:13,098 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:13,099 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 289 transitions. [2022-03-17 23:40:13,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:40:13,099 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:13,099 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:13,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 23:40:13,100 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:13,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:13,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1253743811, now seen corresponding path program 1 times [2022-03-17 23:40:13,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:13,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883535902] [2022-03-17 23:40:13,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:13,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:13,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:13,205 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 23:40:13,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:13,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883535902] [2022-03-17 23:40:13,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883535902] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:13,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:13,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:13,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985928544] [2022-03-17 23:40:13,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:13,206 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:13,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:13,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:13,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:13,207 INFO L87 Difference]: Start difference. First operand 191 states and 289 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:15,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:18,064 WARN L534 Checker$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 23:40:18,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:18,432 INFO L93 Difference]: Finished difference Result 359 states and 551 transitions. [2022-03-17 23:40:18,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:18,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-17 23:40:18,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:18,434 INFO L225 Difference]: With dead ends: 359 [2022-03-17 23:40:18,434 INFO L226 Difference]: Without dead ends: 194 [2022-03-17 23:40:18,435 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 23:40:18,435 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 11 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:18,436 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 535 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 23:40:18,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-03-17 23:40:18,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2022-03-17 23:40:18,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.5268817204301075) internal successors, (284), 186 states have internal predecessors, (284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:18,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 288 transitions. [2022-03-17 23:40:18,441 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 288 transitions. Word has length 66 [2022-03-17 23:40:18,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:18,441 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 288 transitions. [2022-03-17 23:40:18,442 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:18,442 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 288 transitions. [2022-03-17 23:40:18,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:40:18,442 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:18,442 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:18,443 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 23:40:18,443 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:18,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:18,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1541885266, now seen corresponding path program 1 times [2022-03-17 23:40:18,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:18,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498229675] [2022-03-17 23:40:18,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:18,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:18,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:18,569 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 23:40:18,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:18,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498229675] [2022-03-17 23:40:18,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498229675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:18,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:18,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:18,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757973218] [2022-03-17 23:40:18,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:18,570 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:18,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:18,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:18,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:18,571 INFO L87 Difference]: Start difference. First operand 191 states and 288 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:20,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:22,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:23,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:23,366 INFO L93 Difference]: Finished difference Result 480 states and 738 transitions. [2022-03-17 23:40:23,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:23,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-17 23:40:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:23,368 INFO L225 Difference]: With dead ends: 480 [2022-03-17 23:40:23,368 INFO L226 Difference]: Without dead ends: 315 [2022-03-17 23:40:23,369 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 23:40:23,369 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 131 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:23,369 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 23:40:23,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-03-17 23:40:23,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 231. [2022-03-17 23:40:23,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.5663716814159292) internal successors, (354), 226 states have internal predecessors, (354), 3 states have call successors, (3), 3 states 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 23:40:23,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 358 transitions. [2022-03-17 23:40:23,376 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 358 transitions. Word has length 66 [2022-03-17 23:40:23,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:23,377 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 358 transitions. [2022-03-17 23:40:23,377 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:23,377 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 358 transitions. [2022-03-17 23:40:23,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 23:40:23,378 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:23,378 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:23,378 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 23:40:23,378 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:23,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:23,378 INFO L85 PathProgramCache]: Analyzing trace with hash -524374476, now seen corresponding path program 1 times [2022-03-17 23:40:23,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:23,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787395881] [2022-03-17 23:40:23,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:23,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:23,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:23,500 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 23:40:23,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:23,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787395881] [2022-03-17 23:40:23,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787395881] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:23,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:23,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:23,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232523401] [2022-03-17 23:40:23,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:23,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:23,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:23,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:23,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:23,501 INFO L87 Difference]: Start difference. First operand 231 states and 358 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:25,511 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 23:40:26,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:26,088 INFO L93 Difference]: Finished difference Result 542 states and 851 transitions. [2022-03-17 23:40:26,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:26,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-17 23:40:26,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:26,090 INFO L225 Difference]: With dead ends: 542 [2022-03-17 23:40:26,090 INFO L226 Difference]: Without dead ends: 337 [2022-03-17 23:40:26,091 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 23:40:26,092 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 130 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:26,092 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 392 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-17 23:40:26,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-03-17 23:40:26,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 254. [2022-03-17 23:40:26,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 249 states have (on average 1.6024096385542168) internal successors, (399), 249 states have internal predecessors, (399), 3 states have call successors, (3), 3 states 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 23:40:26,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 403 transitions. [2022-03-17 23:40:26,099 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 403 transitions. Word has length 67 [2022-03-17 23:40:26,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:26,100 INFO L478 AbstractCegarLoop]: Abstraction has 254 states and 403 transitions. [2022-03-17 23:40:26,100 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:26,101 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 403 transitions. [2022-03-17 23:40:26,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-17 23:40:26,101 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:26,102 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:26,102 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 23:40:26,102 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:26,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:26,102 INFO L85 PathProgramCache]: Analyzing trace with hash -268597879, now seen corresponding path program 1 times [2022-03-17 23:40:26,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:26,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195647417] [2022-03-17 23:40:26,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:26,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-17 23:40:26,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:26,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195647417] [2022-03-17 23:40:26,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195647417] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:26,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:26,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:26,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679115041] [2022-03-17 23:40:26,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:26,226 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:26,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:26,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:26,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:26,227 INFO L87 Difference]: Start difference. First operand 254 states and 403 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 23:40:28,764 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 23:40:29,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:29,645 INFO L93 Difference]: Finished difference Result 523 states and 837 transitions. [2022-03-17 23:40:29,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:29,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-03-17 23:40:29,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:29,647 INFO L225 Difference]: With dead ends: 523 [2022-03-17 23:40:29,647 INFO L226 Difference]: Without dead ends: 295 [2022-03-17 23:40:29,647 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 23:40:29,648 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 31 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:29,648 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 537 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 23:40:29,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-03-17 23:40:29,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 276. [2022-03-17 23:40:29,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.6014760147601477) internal successors, (434), 271 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:29,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 438 transitions. [2022-03-17 23:40:29,654 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 438 transitions. Word has length 95 [2022-03-17 23:40:29,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:29,655 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 438 transitions. [2022-03-17 23:40:29,655 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 23:40:29,655 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 438 transitions. [2022-03-17 23:40:29,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-17 23:40:29,656 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:29,656 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:29,656 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 23:40:29,656 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:29,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:29,657 INFO L85 PathProgramCache]: Analyzing trace with hash 2013387619, now seen corresponding path program 1 times [2022-03-17 23:40:29,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:29,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054608646] [2022-03-17 23:40:29,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:29,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:29,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:29,776 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-17 23:40:29,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:29,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054608646] [2022-03-17 23:40:29,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054608646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:29,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:29,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:29,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765514740] [2022-03-17 23:40:29,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:29,777 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:29,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:29,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:29,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:29,778 INFO L87 Difference]: Start difference. First operand 276 states and 438 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:31,787 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 23:40:32,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:32,206 INFO L93 Difference]: Finished difference Result 539 states and 862 transitions. [2022-03-17 23:40:32,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:32,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-17 23:40:32,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:32,208 INFO L225 Difference]: With dead ends: 539 [2022-03-17 23:40:32,208 INFO L226 Difference]: Without dead ends: 289 [2022-03-17 23:40:32,209 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 23:40:32,209 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 21 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:32,210 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 602 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 404 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:40:32,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-03-17 23:40:32,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 276. [2022-03-17 23:40:32,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5977859778597785) internal successors, (433), 271 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:32,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 437 transitions. [2022-03-17 23:40:32,216 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 437 transitions. Word has length 109 [2022-03-17 23:40:32,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:32,217 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 437 transitions. [2022-03-17 23:40:32,217 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:32,217 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 437 transitions. [2022-03-17 23:40:32,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-17 23:40:32,218 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:32,218 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:32,218 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 23:40:32,218 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:32,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:32,219 INFO L85 PathProgramCache]: Analyzing trace with hash 769236707, now seen corresponding path program 1 times [2022-03-17 23:40:32,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:32,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739051966] [2022-03-17 23:40:32,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:32,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:32,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:32,341 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 23:40:32,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:32,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739051966] [2022-03-17 23:40:32,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739051966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:32,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:32,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:32,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618860553] [2022-03-17 23:40:32,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:32,342 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:32,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:32,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:32,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:32,343 INFO L87 Difference]: Start difference. First operand 276 states and 437 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:34,384 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 23:40:34,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:34,788 INFO L93 Difference]: Finished difference Result 544 states and 868 transitions. [2022-03-17 23:40:34,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:34,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-17 23:40:34,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:34,790 INFO L225 Difference]: With dead ends: 544 [2022-03-17 23:40:34,790 INFO L226 Difference]: Without dead ends: 294 [2022-03-17 23:40:34,792 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 23:40:34,792 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 34 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:34,793 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 539 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:40:34,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-03-17 23:40:34,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2022-03-17 23:40:34,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5940959409594095) internal successors, (432), 271 states have internal predecessors, (432), 3 states have call successors, (3), 3 states 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 23:40:34,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 436 transitions. [2022-03-17 23:40:34,800 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 436 transitions. Word has length 109 [2022-03-17 23:40:34,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:34,800 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 436 transitions. [2022-03-17 23:40:34,800 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:34,800 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 436 transitions. [2022-03-17 23:40:34,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-17 23:40:34,801 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:34,801 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:34,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 23:40:34,801 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:34,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:34,802 INFO L85 PathProgramCache]: Analyzing trace with hash 621269315, now seen corresponding path program 1 times [2022-03-17 23:40:34,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:34,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453565172] [2022-03-17 23:40:34,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:34,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:34,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:34,938 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-17 23:40:34,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:34,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453565172] [2022-03-17 23:40:34,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453565172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:34,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:34,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:40:34,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302041066] [2022-03-17 23:40:34,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:34,939 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:40:34,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:34,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:40:34,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:40:34,940 INFO L87 Difference]: Start difference. First operand 276 states and 436 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:36,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:38,339 WARN L534 Checker$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 23:40:39,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:41,856 WARN L534 Checker$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 23:40:43,088 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 23:40:43,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:43,467 INFO L93 Difference]: Finished difference Result 535 states and 854 transitions. [2022-03-17 23:40:43,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 23:40:43,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-17 23:40:43,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:43,469 INFO L225 Difference]: With dead ends: 535 [2022-03-17 23:40:43,469 INFO L226 Difference]: Without dead ends: 285 [2022-03-17 23:40:43,469 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 23:40:43,470 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 3 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:43,470 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 673 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2022-03-17 23:40:43,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-03-17 23:40:43,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-03-17 23:40:43,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.582142857142857) internal successors, (443), 280 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 23:40:43,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 447 transitions. [2022-03-17 23:40:43,476 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 447 transitions. Word has length 110 [2022-03-17 23:40:43,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:43,476 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 447 transitions. [2022-03-17 23:40:43,477 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:43,477 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 447 transitions. [2022-03-17 23:40:43,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-17 23:40:43,478 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:43,478 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:43,478 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 23:40:43,478 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:43,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:43,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1743617315, now seen corresponding path program 1 times [2022-03-17 23:40:43,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:43,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829269904] [2022-03-17 23:40:43,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:43,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:43,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:43,588 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 23:40:43,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:43,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829269904] [2022-03-17 23:40:43,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829269904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:43,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:43,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:43,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010117373] [2022-03-17 23:40:43,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:43,589 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:43,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:43,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:43,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:43,590 INFO L87 Difference]: Start difference. First operand 285 states and 447 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:44,611 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 23:40:46,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:48,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:50,547 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 23:40:50,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:50,925 INFO L93 Difference]: Finished difference Result 571 states and 899 transitions. [2022-03-17 23:40:50,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:50,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-17 23:40:50,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:50,926 INFO L225 Difference]: With dead ends: 571 [2022-03-17 23:40:50,927 INFO L226 Difference]: Without dead ends: 312 [2022-03-17 23:40:50,927 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 23:40:50,927 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 39 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:50,928 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 539 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:40:50,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-03-17 23:40:50,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 285. [2022-03-17 23:40:50,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5785714285714285) internal successors, (442), 280 states have internal predecessors, (442), 3 states have call successors, (3), 3 states 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 23:40:50,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 446 transitions. [2022-03-17 23:40:50,935 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 446 transitions. Word has length 110 [2022-03-17 23:40:50,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:50,935 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 446 transitions. [2022-03-17 23:40:50,935 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:50,936 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 446 transitions. [2022-03-17 23:40:50,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-17 23:40:50,937 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:50,937 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:50,937 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 23:40:50,937 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:50,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:50,937 INFO L85 PathProgramCache]: Analyzing trace with hash -552642818, now seen corresponding path program 1 times [2022-03-17 23:40:50,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:50,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462624031] [2022-03-17 23:40:50,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:50,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:51,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:51,107 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 23:40:51,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:51,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462624031] [2022-03-17 23:40:51,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462624031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:51,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:51,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:51,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350591389] [2022-03-17 23:40:51,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:51,108 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:51,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:51,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:51,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:51,109 INFO L87 Difference]: Start difference. First operand 285 states and 446 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:53,127 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 23:40:53,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:53,603 INFO L93 Difference]: Finished difference Result 636 states and 992 transitions. [2022-03-17 23:40:53,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:53,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-03-17 23:40:53,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:53,608 INFO L225 Difference]: With dead ends: 636 [2022-03-17 23:40:53,608 INFO L226 Difference]: Without dead ends: 377 [2022-03-17 23:40:53,609 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 23:40:53,610 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 156 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:53,611 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 392 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 23:40:53,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-03-17 23:40:53,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 285. [2022-03-17 23:40:53,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5642857142857143) internal successors, (438), 280 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:53,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 442 transitions. [2022-03-17 23:40:53,626 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 442 transitions. Word has length 111 [2022-03-17 23:40:53,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:53,626 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 442 transitions. [2022-03-17 23:40:53,626 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:53,626 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 442 transitions. [2022-03-17 23:40:53,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-17 23:40:53,627 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:53,627 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:53,627 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 23:40:53,628 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:53,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:53,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1410842427, now seen corresponding path program 1 times [2022-03-17 23:40:53,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:53,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532218586] [2022-03-17 23:40:53,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:53,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:53,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:53,810 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 23:40:53,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:53,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532218586] [2022-03-17 23:40:53,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532218586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:53,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:53,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:53,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677439245] [2022-03-17 23:40:53,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:53,811 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:53,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:53,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:53,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:53,812 INFO L87 Difference]: Start difference. First operand 285 states and 442 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 23:40:56,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:59,017 WARN L534 Checker$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 23:40:59,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:59,384 INFO L93 Difference]: Finished difference Result 561 states and 876 transitions. [2022-03-17 23:40:59,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:59,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-03-17 23:40:59,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:59,386 INFO L225 Difference]: With dead ends: 561 [2022-03-17 23:40:59,386 INFO L226 Difference]: Without dead ends: 302 [2022-03-17 23:40:59,386 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 23:40:59,387 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 33 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:59,387 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 541 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 23:40:59,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-03-17 23:40:59,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 285. [2022-03-17 23:40:59,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5607142857142857) internal successors, (437), 280 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 23:40:59,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 441 transitions. [2022-03-17 23:40:59,394 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 441 transitions. Word has length 113 [2022-03-17 23:40:59,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:59,394 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 441 transitions. [2022-03-17 23:40:59,394 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 23:40:59,394 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 441 transitions. [2022-03-17 23:40:59,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-17 23:40:59,395 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:59,396 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:59,396 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 23:40:59,396 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:59,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:59,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1137654742, now seen corresponding path program 1 times [2022-03-17 23:40:59,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:59,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033700291] [2022-03-17 23:40:59,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:59,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:59,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:40:59,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:59,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033700291] [2022-03-17 23:40:59,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033700291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:59,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:59,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:59,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944552699] [2022-03-17 23:40:59,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:59,515 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:59,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:59,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:59,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:59,516 INFO L87 Difference]: Start difference. First operand 285 states and 441 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:00,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:02,895 WARN L534 Checker$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 23:41:04,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:05,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:05,428 INFO L93 Difference]: Finished difference Result 652 states and 1015 transitions. [2022-03-17 23:41:05,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:05,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-17 23:41:05,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:05,430 INFO L225 Difference]: With dead ends: 652 [2022-03-17 23:41:05,430 INFO L226 Difference]: Without dead ends: 393 [2022-03-17 23:41:05,431 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 23:41:05,431 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 96 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:05,431 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 535 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 536 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 23:41:05,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-03-17 23:41:05,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 319. [2022-03-17 23:41:05,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 314 states have (on average 1.570063694267516) internal successors, (493), 314 states have internal predecessors, (493), 3 states have call successors, (3), 3 states 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 23:41:05,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 497 transitions. [2022-03-17 23:41:05,439 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 497 transitions. Word has length 117 [2022-03-17 23:41:05,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:05,439 INFO L478 AbstractCegarLoop]: Abstraction has 319 states and 497 transitions. [2022-03-17 23:41:05,439 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:05,439 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 497 transitions. [2022-03-17 23:41:05,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-17 23:41:05,441 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:05,441 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:41:05,441 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 23:41:05,441 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:05,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1383967829, now seen corresponding path program 1 times [2022-03-17 23:41:05,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:05,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104886850] [2022-03-17 23:41:05,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:05,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:05,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-17 23:41:05,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:05,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104886850] [2022-03-17 23:41:05,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104886850] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:05,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:05,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:05,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088318901] [2022-03-17 23:41:05,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:05,566 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:05,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:05,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:05,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:05,567 INFO L87 Difference]: Start difference. First operand 319 states and 497 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:07,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:08,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:08,018 INFO L93 Difference]: Finished difference Result 669 states and 1046 transitions. [2022-03-17 23:41:08,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:08,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-17 23:41:08,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:08,019 INFO L225 Difference]: With dead ends: 669 [2022-03-17 23:41:08,019 INFO L226 Difference]: Without dead ends: 376 [2022-03-17 23:41:08,020 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:41:08,021 INFO L912 BasicCegarLoop]: 257 mSDtfsCounter, 38 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:08,021 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 637 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:41:08,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-03-17 23:41:08,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 343. [2022-03-17 23:41:08,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 338 states have (on average 1.5710059171597632) internal successors, (531), 338 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 23:41:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 535 transitions. [2022-03-17 23:41:08,029 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 535 transitions. Word has length 117 [2022-03-17 23:41:08,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:08,029 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 535 transitions. [2022-03-17 23:41:08,029 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:08,030 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 535 transitions. [2022-03-17 23:41:08,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 23:41:08,030 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:08,031 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:08,031 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 23:41:08,031 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:08,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:08,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1058943794, now seen corresponding path program 1 times [2022-03-17 23:41:08,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:08,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716139876] [2022-03-17 23:41:08,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:08,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:08,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:08,163 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-17 23:41:08,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:08,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716139876] [2022-03-17 23:41:08,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716139876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:08,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:08,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:08,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115025205] [2022-03-17 23:41:08,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:08,165 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:08,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:08,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:08,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:08,166 INFO L87 Difference]: Start difference. First operand 343 states and 535 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 23:41:09,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:11,771 WARN L534 Checker$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 23:41:13,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:14,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:14,687 INFO L93 Difference]: Finished difference Result 742 states and 1158 transitions. [2022-03-17 23:41:14,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:14,687 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 122 [2022-03-17 23:41:14,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:14,688 INFO L225 Difference]: With dead ends: 742 [2022-03-17 23:41:14,688 INFO L226 Difference]: Without dead ends: 425 [2022-03-17 23:41:14,689 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 23:41:14,690 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 157 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:14,690 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 374 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-17 23:41:14,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-03-17 23:41:14,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 343. [2022-03-17 23:41:14,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 338 states have (on average 1.5532544378698225) internal successors, (525), 338 states have internal predecessors, (525), 3 states have call successors, (3), 3 states 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 23:41:14,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 529 transitions. [2022-03-17 23:41:14,698 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 529 transitions. Word has length 122 [2022-03-17 23:41:14,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:14,698 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 529 transitions. [2022-03-17 23:41:14,699 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 23:41:14,699 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 529 transitions. [2022-03-17 23:41:14,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 23:41:14,700 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:14,700 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:14,700 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 23:41:14,700 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:14,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:14,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1303023360, now seen corresponding path program 1 times [2022-03-17 23:41:14,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:14,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124277023] [2022-03-17 23:41:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:14,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:14,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:14,865 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:14,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:14,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124277023] [2022-03-17 23:41:14,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124277023] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:14,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:14,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:14,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920979888] [2022-03-17 23:41:14,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:14,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:14,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:14,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:14,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:14,867 INFO L87 Difference]: Start difference. First operand 343 states and 529 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:16,318 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 23:41:19,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:19,283 INFO L93 Difference]: Finished difference Result 782 states and 1214 transitions. [2022-03-17 23:41:19,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:19,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 23:41:19,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:19,285 INFO L225 Difference]: With dead ends: 782 [2022-03-17 23:41:19,285 INFO L226 Difference]: Without dead ends: 465 [2022-03-17 23:41:19,286 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 23:41:19,287 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 130 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:19,287 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 374 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 23:41:19,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-03-17 23:41:19,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 380. [2022-03-17 23:41:19,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 375 states have (on average 1.5653333333333332) internal successors, (587), 375 states have internal predecessors, (587), 3 states have call successors, (3), 3 states 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 23:41:19,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 591 transitions. [2022-03-17 23:41:19,295 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 591 transitions. Word has length 123 [2022-03-17 23:41:19,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:19,295 INFO L478 AbstractCegarLoop]: Abstraction has 380 states and 591 transitions. [2022-03-17 23:41:19,295 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:19,295 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 591 transitions. [2022-03-17 23:41:19,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-17 23:41:19,296 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:19,297 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:19,297 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 23:41:19,297 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:19,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:19,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1648642121, now seen corresponding path program 1 times [2022-03-17 23:41:19,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:19,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098768946] [2022-03-17 23:41:19,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:19,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:19,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:19,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098768946] [2022-03-17 23:41:19,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098768946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:19,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:19,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:19,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057499213] [2022-03-17 23:41:19,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:19,412 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:19,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:19,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:19,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:19,412 INFO L87 Difference]: Start difference. First operand 380 states and 591 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:21,422 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 23:41:21,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:21,854 INFO L93 Difference]: Finished difference Result 795 states and 1241 transitions. [2022-03-17 23:41:21,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:21,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-17 23:41:21,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:21,856 INFO L225 Difference]: With dead ends: 795 [2022-03-17 23:41:21,856 INFO L226 Difference]: Without dead ends: 441 [2022-03-17 23:41:21,857 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 23:41:21,857 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 84 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:21,857 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 505 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 511 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:41:21,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-03-17 23:41:21,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 386. [2022-03-17 23:41:21,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5669291338582678) internal successors, (597), 381 states have internal predecessors, (597), 3 states have call successors, (3), 3 states 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 23:41:21,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 601 transitions. [2022-03-17 23:41:21,867 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 601 transitions. Word has length 124 [2022-03-17 23:41:21,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:21,867 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 601 transitions. [2022-03-17 23:41:21,867 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:21,867 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 601 transitions. [2022-03-17 23:41:21,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:41:21,868 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:21,868 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:21,869 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 23:41:21,869 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:21,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:21,869 INFO L85 PathProgramCache]: Analyzing trace with hash -880398396, now seen corresponding path program 1 times [2022-03-17 23:41:21,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:21,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596618079] [2022-03-17 23:41:21,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:21,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:21,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:41:21,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:21,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596618079] [2022-03-17 23:41:21,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596618079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:21,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:21,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:21,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974683157] [2022-03-17 23:41:22,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:22,020 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:22,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:22,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:22,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:22,021 INFO L87 Difference]: Start difference. First operand 386 states and 601 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:23,088 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 23:41:25,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:25,978 INFO L93 Difference]: Finished difference Result 827 states and 1289 transitions. [2022-03-17 23:41:25,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:25,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 23:41:25,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:25,980 INFO L225 Difference]: With dead ends: 827 [2022-03-17 23:41:25,980 INFO L226 Difference]: Without dead ends: 467 [2022-03-17 23:41:25,980 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 23:41:25,981 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 149 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:25,981 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 376 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 23:41:25,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-03-17 23:41:25,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 386. [2022-03-17 23:41:25,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5538057742782152) internal successors, (592), 381 states have internal predecessors, (592), 3 states have call successors, (3), 3 states 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 23:41:25,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 596 transitions. [2022-03-17 23:41:25,989 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 596 transitions. Word has length 131 [2022-03-17 23:41:25,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:25,990 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 596 transitions. [2022-03-17 23:41:25,990 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:25,990 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 596 transitions. [2022-03-17 23:41:25,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:41:25,991 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:25,991 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:25,991 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 23:41:25,991 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:25,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:25,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1831808920, now seen corresponding path program 1 times [2022-03-17 23:41:25,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:25,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552515147] [2022-03-17 23:41:25,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:25,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:26,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:26,107 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:26,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:26,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552515147] [2022-03-17 23:41:26,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552515147] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:26,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:26,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:26,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272139553] [2022-03-17 23:41:26,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:26,108 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:26,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:26,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:26,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:26,109 INFO L87 Difference]: Start difference. First operand 386 states and 596 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:27,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:29,390 WARN L534 Checker$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 23:41:30,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:30,186 INFO L93 Difference]: Finished difference Result 867 states and 1345 transitions. [2022-03-17 23:41:30,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:30,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 23:41:30,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:30,188 INFO L225 Difference]: With dead ends: 867 [2022-03-17 23:41:30,188 INFO L226 Difference]: Without dead ends: 507 [2022-03-17 23:41:30,189 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 23:41:30,190 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 122 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:30,190 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 397 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-17 23:41:30,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-03-17 23:41:30,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 429. [2022-03-17 23:41:30,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.5636792452830188) internal successors, (663), 424 states have internal predecessors, (663), 3 states have call successors, (3), 3 states 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 23:41:30,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 667 transitions. [2022-03-17 23:41:30,199 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 667 transitions. Word has length 131 [2022-03-17 23:41:30,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:30,199 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 667 transitions. [2022-03-17 23:41:30,200 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:30,200 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 667 transitions. [2022-03-17 23:41:30,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 23:41:30,201 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:30,201 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:30,201 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 23:41:30,201 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:30,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:30,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2144536674, now seen corresponding path program 1 times [2022-03-17 23:41:30,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:30,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609605926] [2022-03-17 23:41:30,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:30,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:30,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:30,319 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:41:30,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:30,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609605926] [2022-03-17 23:41:30,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609605926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:30,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:30,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:30,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872766787] [2022-03-17 23:41:30,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:30,320 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:30,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:30,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:30,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:30,321 INFO L87 Difference]: Start difference. First operand 429 states and 667 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:32,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:34,478 WARN L534 Checker$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 23:41:36,498 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 23:41:36,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:36,958 INFO L93 Difference]: Finished difference Result 913 states and 1421 transitions. [2022-03-17 23:41:36,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:36,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-17 23:41:36,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:36,960 INFO L225 Difference]: With dead ends: 913 [2022-03-17 23:41:36,960 INFO L226 Difference]: Without dead ends: 510 [2022-03-17 23:41:36,961 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 23:41:36,961 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 154 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:36,961 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 376 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 23:41:36,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-03-17 23:41:36,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 429. [2022-03-17 23:41:36,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.5471698113207548) internal successors, (656), 424 states have internal predecessors, (656), 3 states have call successors, (3), 3 states 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 23:41:36,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 660 transitions. [2022-03-17 23:41:36,970 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 660 transitions. Word has length 132 [2022-03-17 23:41:36,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:36,971 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 660 transitions. [2022-03-17 23:41:36,971 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:36,971 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 660 transitions. [2022-03-17 23:41:36,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 23:41:36,972 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:36,972 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:36,972 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 23:41:36,972 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:36,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:36,973 INFO L85 PathProgramCache]: Analyzing trace with hash 930118479, now seen corresponding path program 1 times [2022-03-17 23:41:36,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:36,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475340226] [2022-03-17 23:41:36,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:36,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:37,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:37,104 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:37,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:37,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475340226] [2022-03-17 23:41:37,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475340226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:37,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:37,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:37,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158792632] [2022-03-17 23:41:37,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:37,105 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:37,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:37,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:37,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:37,106 INFO L87 Difference]: Start difference. First operand 429 states and 660 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:38,217 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 23:41:40,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:42,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:44,073 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 23:41:44,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:44,536 INFO L93 Difference]: Finished difference Result 913 states and 1407 transitions. [2022-03-17 23:41:44,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:44,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-17 23:41:44,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:44,538 INFO L225 Difference]: With dead ends: 913 [2022-03-17 23:41:44,538 INFO L226 Difference]: Without dead ends: 508 [2022-03-17 23:41:44,539 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 23:41:44,540 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 122 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:44,540 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 396 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-03-17 23:41:44,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-03-17 23:41:44,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 431. [2022-03-17 23:41:44,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 426 states have (on average 1.5469483568075117) internal successors, (659), 426 states have internal predecessors, (659), 3 states have call successors, (3), 3 states 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 23:41:44,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 663 transitions. [2022-03-17 23:41:44,549 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 663 transitions. Word has length 132 [2022-03-17 23:41:44,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:44,550 INFO L478 AbstractCegarLoop]: Abstraction has 431 states and 663 transitions. [2022-03-17 23:41:44,550 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:44,550 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 663 transitions. [2022-03-17 23:41:44,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-17 23:41:44,551 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:44,551 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:44,551 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 23:41:44,551 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:44,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:44,552 INFO L85 PathProgramCache]: Analyzing trace with hash 895416220, now seen corresponding path program 1 times [2022-03-17 23:41:44,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:44,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783061569] [2022-03-17 23:41:44,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:44,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:44,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:44,666 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:41:44,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:44,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783061569] [2022-03-17 23:41:44,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783061569] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:44,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:44,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:44,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662460680] [2022-03-17 23:41:44,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:44,667 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:44,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:44,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:44,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:44,668 INFO L87 Difference]: Start difference. First operand 431 states and 663 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:46,156 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 23:41:47,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:49,522 WARN L534 Checker$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 23:41:50,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:51,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:51,107 INFO L93 Difference]: Finished difference Result 874 states and 1350 transitions. [2022-03-17 23:41:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:51,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-03-17 23:41:51,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:51,109 INFO L225 Difference]: With dead ends: 874 [2022-03-17 23:41:51,109 INFO L226 Difference]: Without dead ends: 469 [2022-03-17 23:41:51,110 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 23:41:51,110 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 88 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:51,110 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 525 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:41:51,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-03-17 23:41:51,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 431. [2022-03-17 23:41:51,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 426 states have (on average 1.5446009389671362) internal successors, (658), 426 states have internal predecessors, (658), 3 states have call successors, (3), 3 states 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 23:41:51,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 662 transitions. [2022-03-17 23:41:51,119 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 662 transitions. Word has length 135 [2022-03-17 23:41:51,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:51,119 INFO L478 AbstractCegarLoop]: Abstraction has 431 states and 662 transitions. [2022-03-17 23:41:51,119 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:51,119 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 662 transitions. [2022-03-17 23:41:51,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-17 23:41:51,120 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:51,121 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:51,121 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 23:41:51,121 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:51,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:51,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1545205539, now seen corresponding path program 1 times [2022-03-17 23:41:51,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:51,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231636677] [2022-03-17 23:41:51,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:51,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:51,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:41:51,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:51,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231636677] [2022-03-17 23:41:51,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231636677] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:51,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:51,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:51,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242138915] [2022-03-17 23:41:51,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:51,243 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:51,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:51,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:51,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:51,244 INFO L87 Difference]: Start difference. First operand 431 states and 662 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:52,599 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 23:41:54,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:56,646 WARN L534 Checker$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 23:41:58,670 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 23:41:59,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:59,030 INFO L93 Difference]: Finished difference Result 848 states and 1311 transitions. [2022-03-17 23:41:59,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:59,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-03-17 23:41:59,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:59,031 INFO L225 Difference]: With dead ends: 848 [2022-03-17 23:41:59,031 INFO L226 Difference]: Without dead ends: 443 [2022-03-17 23:41:59,032 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 23:41:59,032 INFO L912 BasicCegarLoop]: 248 mSDtfsCounter, 36 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:59,033 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 619 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 432 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-03-17 23:41:59,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-03-17 23:41:59,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 431. [2022-03-17 23:41:59,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 426 states have (on average 1.5422535211267605) internal successors, (657), 426 states have internal predecessors, (657), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:59,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 661 transitions. [2022-03-17 23:41:59,044 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 661 transitions. Word has length 135 [2022-03-17 23:41:59,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:59,044 INFO L478 AbstractCegarLoop]: Abstraction has 431 states and 661 transitions. [2022-03-17 23:41:59,044 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:59,045 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 661 transitions. [2022-03-17 23:41:59,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-17 23:41:59,046 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:59,046 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:59,046 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 23:41:59,046 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:59,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:59,046 INFO L85 PathProgramCache]: Analyzing trace with hash 106764108, now seen corresponding path program 1 times [2022-03-17 23:41:59,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:59,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005875825] [2022-03-17 23:41:59,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:59,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:59,162 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:41:59,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:59,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005875825] [2022-03-17 23:41:59,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005875825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:59,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:59,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:59,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891546729] [2022-03-17 23:41:59,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:59,164 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:59,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:59,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:59,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:59,164 INFO L87 Difference]: Start difference. First operand 431 states and 661 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:00,531 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 23:42:02,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:04,486 WARN L534 Checker$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 23:42:05,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:05,515 INFO L93 Difference]: Finished difference Result 874 states and 1346 transitions. [2022-03-17 23:42:05,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:05,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-03-17 23:42:05,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:05,517 INFO L225 Difference]: With dead ends: 874 [2022-03-17 23:42:05,517 INFO L226 Difference]: Without dead ends: 469 [2022-03-17 23:42:05,517 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 23:42:05,518 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 78 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:05,518 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 541 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 23:42:05,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-03-17 23:42:05,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 431. [2022-03-17 23:42:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 426 states have (on average 1.539906103286385) internal successors, (656), 426 states have internal predecessors, (656), 3 states have call successors, (3), 3 states 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 23:42:05,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 660 transitions. [2022-03-17 23:42:05,527 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 660 transitions. Word has length 139 [2022-03-17 23:42:05,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:05,527 INFO L478 AbstractCegarLoop]: Abstraction has 431 states and 660 transitions. [2022-03-17 23:42:05,527 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:05,527 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 660 transitions. [2022-03-17 23:42:05,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-17 23:42:05,528 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:05,529 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:05,529 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 23:42:05,529 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:05,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:05,529 INFO L85 PathProgramCache]: Analyzing trace with hash -863526899, now seen corresponding path program 1 times [2022-03-17 23:42:05,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:05,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003564150] [2022-03-17 23:42:05,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:05,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:05,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:42:05,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:05,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003564150] [2022-03-17 23:42:05,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003564150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:05,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:05,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:05,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587163330] [2022-03-17 23:42:05,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:05,670 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:05,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:05,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:05,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:05,671 INFO L87 Difference]: Start difference. First operand 431 states and 660 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:06,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:08,763 WARN L534 Checker$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 23:42:10,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:11,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:11,549 INFO L93 Difference]: Finished difference Result 991 states and 1529 transitions. [2022-03-17 23:42:11,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:11,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-03-17 23:42:11,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:11,551 INFO L225 Difference]: With dead ends: 991 [2022-03-17 23:42:11,551 INFO L226 Difference]: Without dead ends: 586 [2022-03-17 23:42:11,552 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 23:42:11,552 INFO L912 BasicCegarLoop]: 146 mSDtfsCounter, 130 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:11,552 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 410 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 23:42:11,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-03-17 23:42:11,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 495. [2022-03-17 23:42:11,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.542857142857143) internal successors, (756), 490 states have internal predecessors, (756), 3 states have call successors, (3), 3 states 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 23:42:11,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 760 transitions. [2022-03-17 23:42:11,563 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 760 transitions. Word has length 139 [2022-03-17 23:42:11,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:11,563 INFO L478 AbstractCegarLoop]: Abstraction has 495 states and 760 transitions. [2022-03-17 23:42:11,563 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:11,563 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 760 transitions. [2022-03-17 23:42:11,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-17 23:42:11,565 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:11,565 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:11,565 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 23:42:11,565 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:11,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:11,565 INFO L85 PathProgramCache]: Analyzing trace with hash -353743273, now seen corresponding path program 1 times [2022-03-17 23:42:11,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:11,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572048822] [2022-03-17 23:42:11,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:11,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:11,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:11,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:11,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572048822] [2022-03-17 23:42:11,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572048822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:11,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:11,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:11,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286492645] [2022-03-17 23:42:11,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:11,686 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:11,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:11,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:11,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:11,687 INFO L87 Difference]: Start difference. First operand 495 states and 760 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:14,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:14,399 INFO L93 Difference]: Finished difference Result 1002 states and 1544 transitions. [2022-03-17 23:42:14,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:14,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-17 23:42:14,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:14,401 INFO L225 Difference]: With dead ends: 1002 [2022-03-17 23:42:14,401 INFO L226 Difference]: Without dead ends: 533 [2022-03-17 23:42:14,402 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 23:42:14,402 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 71 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:14,402 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 541 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-17 23:42:14,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-03-17 23:42:14,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 495. [2022-03-17 23:42:14,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.5408163265306123) internal successors, (755), 490 states have internal predecessors, (755), 3 states have call successors, (3), 3 states 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 23:42:14,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 759 transitions. [2022-03-17 23:42:14,412 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 759 transitions. Word has length 144 [2022-03-17 23:42:14,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:14,412 INFO L478 AbstractCegarLoop]: Abstraction has 495 states and 759 transitions. [2022-03-17 23:42:14,413 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:14,413 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 759 transitions. [2022-03-17 23:42:14,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 23:42:14,414 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:14,414 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:14,414 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 23:42:14,414 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:14,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:14,415 INFO L85 PathProgramCache]: Analyzing trace with hash -649786349, now seen corresponding path program 1 times [2022-03-17 23:42:14,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:14,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301366517] [2022-03-17 23:42:14,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:14,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:14,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:14,584 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:14,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:14,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301366517] [2022-03-17 23:42:14,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301366517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:14,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:14,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:14,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960449773] [2022-03-17 23:42:14,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:14,585 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:14,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:14,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:14,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:14,586 INFO L87 Difference]: Start difference. First operand 495 states and 759 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:16,780 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 23:42:17,852 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 23:42:18,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:18,946 INFO L93 Difference]: Finished difference Result 1041 states and 1598 transitions. [2022-03-17 23:42:18,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:18,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-17 23:42:18,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:18,948 INFO L225 Difference]: With dead ends: 1041 [2022-03-17 23:42:18,948 INFO L226 Difference]: Without dead ends: 572 [2022-03-17 23:42:18,949 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 23:42:18,949 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 132 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:18,949 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 378 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 23:42:18,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-03-17 23:42:18,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 495. [2022-03-17 23:42:18,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 490 states have (on average 1.526530612244898) internal successors, (748), 490 states have internal predecessors, (748), 3 states have call successors, (3), 3 states 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 23:42:18,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 752 transitions. [2022-03-17 23:42:18,958 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 752 transitions. Word has length 145 [2022-03-17 23:42:18,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:18,959 INFO L478 AbstractCegarLoop]: Abstraction has 495 states and 752 transitions. [2022-03-17 23:42:18,959 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:18,959 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 752 transitions. [2022-03-17 23:42:18,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 23:42:18,960 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:18,960 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:42:18,960 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 23:42:18,960 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:18,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:18,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1588807284, now seen corresponding path program 1 times [2022-03-17 23:42:18,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:18,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805274846] [2022-03-17 23:42:18,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:18,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:19,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:19,074 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-17 23:42:19,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:19,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805274846] [2022-03-17 23:42:19,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805274846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:19,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:19,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:42:19,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405723895] [2022-03-17 23:42:19,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:19,075 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:42:19,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:19,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:42:19,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:42:19,075 INFO L87 Difference]: Start difference. First operand 495 states and 752 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:21,866 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 23:42:23,015 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 23:42:23,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:23,320 INFO L93 Difference]: Finished difference Result 1428 states and 2190 transitions. [2022-03-17 23:42:23,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:42:23,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 23:42:23,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:23,323 INFO L225 Difference]: With dead ends: 1428 [2022-03-17 23:42:23,323 INFO L226 Difference]: Without dead ends: 959 [2022-03-17 23:42:23,324 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 23:42:23,324 INFO L912 BasicCegarLoop]: 253 mSDtfsCounter, 144 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:23,324 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 447 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 23:42:23,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-03-17 23:42:23,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 957. [2022-03-17 23:42:23,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 952 states have (on average 1.5210084033613445) internal successors, (1448), 952 states have internal predecessors, (1448), 3 states have call successors, (3), 3 states 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 23:42:23,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1452 transitions. [2022-03-17 23:42:23,342 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1452 transitions. Word has length 146 [2022-03-17 23:42:23,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:23,343 INFO L478 AbstractCegarLoop]: Abstraction has 957 states and 1452 transitions. [2022-03-17 23:42:23,343 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:23,343 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1452 transitions. [2022-03-17 23:42:23,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 23:42:23,345 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:23,345 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:42:23,345 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 23:42:23,345 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:23,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:23,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1244580013, now seen corresponding path program 1 times [2022-03-17 23:42:23,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:23,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119124427] [2022-03-17 23:42:23,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:23,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:23,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:23,486 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-17 23:42:23,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:23,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119124427] [2022-03-17 23:42:23,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119124427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:23,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:23,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:23,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94281387] [2022-03-17 23:42:23,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:23,487 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:23,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:23,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:23,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:23,488 INFO L87 Difference]: Start difference. First operand 957 states and 1452 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:25,321 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 23:42:28,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:29,925 WARN L534 Checker$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 23:42:30,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:30,317 INFO L93 Difference]: Finished difference Result 1987 states and 3016 transitions. [2022-03-17 23:42:30,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:30,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 23:42:30,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:30,321 INFO L225 Difference]: With dead ends: 1987 [2022-03-17 23:42:30,322 INFO L226 Difference]: Without dead ends: 1056 [2022-03-17 23:42:30,323 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 23:42:30,324 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 38 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:30,324 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 607 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 23:42:30,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2022-03-17 23:42:30,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1009. [2022-03-17 23:42:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1004 states have (on average 1.5199203187250996) internal successors, (1526), 1004 states have internal predecessors, (1526), 3 states have call successors, (3), 3 states 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 23:42:30,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1530 transitions. [2022-03-17 23:42:30,343 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1530 transitions. Word has length 146 [2022-03-17 23:42:30,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:30,343 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1530 transitions. [2022-03-17 23:42:30,343 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:30,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1530 transitions. [2022-03-17 23:42:30,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-17 23:42:30,345 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:30,346 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:30,346 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 23:42:30,346 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:30,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:30,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1093415464, now seen corresponding path program 1 times [2022-03-17 23:42:30,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:30,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850623057] [2022-03-17 23:42:30,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:30,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:30,466 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:30,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:30,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850623057] [2022-03-17 23:42:30,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850623057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:30,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:30,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:30,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992273711] [2022-03-17 23:42:30,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:30,467 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:30,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:30,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:30,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:30,467 INFO L87 Difference]: Start difference. First operand 1009 states and 1530 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:32,475 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 23:42:32,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:32,867 INFO L93 Difference]: Finished difference Result 2063 states and 3127 transitions. [2022-03-17 23:42:32,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:32,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-17 23:42:32,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:32,870 INFO L225 Difference]: With dead ends: 2063 [2022-03-17 23:42:32,871 INFO L226 Difference]: Without dead ends: 1080 [2022-03-17 23:42:32,872 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 23:42:32,872 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 70 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:32,872 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 543 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:42:32,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-03-17 23:42:32,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1009. [2022-03-17 23:42:32,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1004 states have (on average 1.5179282868525896) internal successors, (1524), 1004 states have internal predecessors, (1524), 3 states have call successors, (3), 3 states 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 23:42:32,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1528 transitions. [2022-03-17 23:42:32,889 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1528 transitions. Word has length 148 [2022-03-17 23:42:32,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:32,889 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1528 transitions. [2022-03-17 23:42:32,889 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:32,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1528 transitions. [2022-03-17 23:42:32,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-17 23:42:32,891 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:32,892 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:32,892 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 23:42:32,892 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:32,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:32,892 INFO L85 PathProgramCache]: Analyzing trace with hash -627251098, now seen corresponding path program 1 times [2022-03-17 23:42:32,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:32,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296716067] [2022-03-17 23:42:32,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:32,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:33,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:33,046 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:33,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:33,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296716067] [2022-03-17 23:42:33,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296716067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:33,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:33,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:33,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198378011] [2022-03-17 23:42:33,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:33,047 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:33,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:33,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:33,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:33,047 INFO L87 Difference]: Start difference. First operand 1009 states and 1528 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:34,601 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 23:42:36,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:38,648 WARN L534 Checker$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 23:42:39,870 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 23:42:40,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:40,301 INFO L93 Difference]: Finished difference Result 2141 states and 3228 transitions. [2022-03-17 23:42:40,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:40,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-17 23:42:40,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:40,305 INFO L225 Difference]: With dead ends: 2141 [2022-03-17 23:42:40,305 INFO L226 Difference]: Without dead ends: 1158 [2022-03-17 23:42:40,306 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 23:42:40,306 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 133 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:40,306 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 378 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 479 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-17 23:42:40,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-03-17 23:42:40,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1009. [2022-03-17 23:42:40,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1004 states have (on average 1.50398406374502) internal successors, (1510), 1004 states have internal predecessors, (1510), 3 states have call successors, (3), 3 states 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 23:42:40,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1514 transitions. [2022-03-17 23:42:40,323 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1514 transitions. Word has length 149 [2022-03-17 23:42:40,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:40,324 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1514 transitions. [2022-03-17 23:42:40,324 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:40,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1514 transitions. [2022-03-17 23:42:40,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 23:42:40,326 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:40,326 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:40,326 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 23:42:40,326 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:40,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:40,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1463851763, now seen corresponding path program 1 times [2022-03-17 23:42:40,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:40,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367408488] [2022-03-17 23:42:40,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:40,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:40,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-17 23:42:40,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:40,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367408488] [2022-03-17 23:42:40,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367408488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:40,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:40,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:40,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687286062] [2022-03-17 23:42:40,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:40,444 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:40,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:40,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:40,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:40,445 INFO L87 Difference]: Start difference. First operand 1009 states and 1514 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:44,040 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 23:42:46,069 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 23:42:46,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:46,442 INFO L93 Difference]: Finished difference Result 2047 states and 3069 transitions. [2022-03-17 23:42:46,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:46,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-03-17 23:42:46,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:46,445 INFO L225 Difference]: With dead ends: 2047 [2022-03-17 23:42:46,445 INFO L226 Difference]: Without dead ends: 1064 [2022-03-17 23:42:46,446 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:42:46,446 INFO L912 BasicCegarLoop]: 218 mSDtfsCounter, 61 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:46,446 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 561 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 479 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 23:42:46,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-03-17 23:42:46,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1009. [2022-03-17 23:42:46,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1004 states have (on average 1.50199203187251) internal successors, (1508), 1004 states have internal predecessors, (1508), 3 states have call successors, (3), 3 states 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 23:42:46,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1512 transitions. [2022-03-17 23:42:46,462 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1512 transitions. Word has length 152 [2022-03-17 23:42:46,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:46,462 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1512 transitions. [2022-03-17 23:42:46,463 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:46,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1512 transitions. [2022-03-17 23:42:46,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-17 23:42:46,465 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:46,465 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:46,465 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 23:42:46,465 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:46,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:46,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1470705865, now seen corresponding path program 1 times [2022-03-17 23:42:46,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:46,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129563278] [2022-03-17 23:42:46,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:46,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:46,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:46,588 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-17 23:42:46,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:46,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129563278] [2022-03-17 23:42:46,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129563278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:46,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:46,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:46,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307297035] [2022-03-17 23:42:46,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:46,589 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:46,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:46,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:46,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:46,590 INFO L87 Difference]: Start difference. First operand 1009 states and 1512 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:47,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:48,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:49,959 WARN L534 Checker$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 23:42:51,976 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 23:42:52,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:52,430 INFO L93 Difference]: Finished difference Result 2141 states and 3196 transitions. [2022-03-17 23:42:52,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:52,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-17 23:42:52,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:52,433 INFO L225 Difference]: With dead ends: 2141 [2022-03-17 23:42:52,433 INFO L226 Difference]: Without dead ends: 1158 [2022-03-17 23:42:52,434 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 23:42:52,434 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 134 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:52,435 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 378 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 23:42:52,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-03-17 23:42:52,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1009. [2022-03-17 23:42:52,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1004 states have (on average 1.4880478087649402) internal successors, (1494), 1004 states have internal predecessors, (1494), 3 states have call successors, (3), 3 states 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 23:42:52,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1498 transitions. [2022-03-17 23:42:52,454 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1498 transitions. Word has length 153 [2022-03-17 23:42:52,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:52,454 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1498 transitions. [2022-03-17 23:42:52,455 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:52,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1498 transitions. [2022-03-17 23:42:52,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-17 23:42:52,457 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:52,457 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, 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 23:42:52,457 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 23:42:52,457 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:52,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:52,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1804153017, now seen corresponding path program 1 times [2022-03-17 23:42:52,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:52,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899621465] [2022-03-17 23:42:52,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:52,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:52,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:52,579 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-17 23:42:52,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:52,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899621465] [2022-03-17 23:42:52,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899621465] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:52,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:52,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:52,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131777478] [2022-03-17 23:42:52,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:52,580 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:52,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:52,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:52,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:52,581 INFO L87 Difference]: Start difference. First operand 1009 states and 1498 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:53,825 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 23:42:56,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:58,512 WARN L534 Checker$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 23:42:58,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:58,935 INFO L93 Difference]: Finished difference Result 2043 states and 3031 transitions. [2022-03-17 23:42:58,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:58,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-17 23:42:58,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:58,939 INFO L225 Difference]: With dead ends: 2043 [2022-03-17 23:42:58,939 INFO L226 Difference]: Without dead ends: 1060 [2022-03-17 23:42:58,940 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 23:42:58,941 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 51 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:58,941 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 567 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 23:42:58,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-03-17 23:42:58,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1009. [2022-03-17 23:42:58,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1004 states have (on average 1.4860557768924303) internal successors, (1492), 1004 states have internal predecessors, (1492), 3 states have call successors, (3), 3 states 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 23:42:58,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1496 transitions. [2022-03-17 23:42:58,958 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1496 transitions. Word has length 156 [2022-03-17 23:42:58,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:58,959 INFO L478 AbstractCegarLoop]: Abstraction has 1009 states and 1496 transitions. [2022-03-17 23:42:58,959 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:58,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1496 transitions. [2022-03-17 23:42:58,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-17 23:42:58,961 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:58,961 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:42:58,961 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 23:42:58,961 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:58,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:58,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1187930418, now seen corresponding path program 1 times [2022-03-17 23:42:58,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:58,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448086077] [2022-03-17 23:42:58,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:58,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:59,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 23:42:59,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:59,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448086077] [2022-03-17 23:42:59,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448086077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:59,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:59,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:59,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579526935] [2022-03-17 23:42:59,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:59,095 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:59,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:59,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:59,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:59,096 INFO L87 Difference]: Start difference. First operand 1009 states and 1496 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:01,106 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 23:43:01,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:01,551 INFO L93 Difference]: Finished difference Result 2225 states and 3292 transitions. [2022-03-17 23:43:01,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:01,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-17 23:43:01,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:01,555 INFO L225 Difference]: With dead ends: 2225 [2022-03-17 23:43:01,555 INFO L226 Difference]: Without dead ends: 1242 [2022-03-17 23:43:01,556 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 23:43:01,556 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 125 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:01,556 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 378 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:43:01,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2022-03-17 23:43:01,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1079. [2022-03-17 23:43:01,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.4804469273743017) internal successors, (1590), 1074 states have internal predecessors, (1590), 3 states have call successors, (3), 3 states 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 23:43:01,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1594 transitions. [2022-03-17 23:43:01,571 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1594 transitions. Word has length 156 [2022-03-17 23:43:01,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:01,571 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1594 transitions. [2022-03-17 23:43:01,571 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:01,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1594 transitions. [2022-03-17 23:43:01,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-17 23:43:01,573 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:01,574 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, 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 23:43:01,574 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 23:43:01,574 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:01,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:01,574 INFO L85 PathProgramCache]: Analyzing trace with hash 72810464, now seen corresponding path program 1 times [2022-03-17 23:43:01,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:01,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532022509] [2022-03-17 23:43:01,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:01,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:01,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:01,689 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-17 23:43:01,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:01,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532022509] [2022-03-17 23:43:01,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532022509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:01,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:01,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:01,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644200457] [2022-03-17 23:43:01,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:01,691 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:01,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:01,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:01,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:01,691 INFO L87 Difference]: Start difference. First operand 1079 states and 1594 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:03,206 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 23:43:05,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:07,257 WARN L534 Checker$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 23:43:09,284 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 23:43:09,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:09,670 INFO L93 Difference]: Finished difference Result 2171 states and 3207 transitions. [2022-03-17 23:43:09,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:09,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-17 23:43:09,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:09,673 INFO L225 Difference]: With dead ends: 2171 [2022-03-17 23:43:09,673 INFO L226 Difference]: Without dead ends: 1118 [2022-03-17 23:43:09,674 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 23:43:09,675 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 41 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:09,675 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 571 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-03-17 23:43:09,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-03-17 23:43:09,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1079. [2022-03-17 23:43:09,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.4785847299813781) internal successors, (1588), 1074 states have internal predecessors, (1588), 3 states have call successors, (3), 3 states 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 23:43:09,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1592 transitions. [2022-03-17 23:43:09,703 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1592 transitions. Word has length 157 [2022-03-17 23:43:09,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:09,703 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1592 transitions. [2022-03-17 23:43:09,707 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:09,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1592 transitions. [2022-03-17 23:43:09,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-17 23:43:09,709 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:09,709 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:43:09,709 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 23:43:09,709 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:09,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:09,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1360449574, now seen corresponding path program 1 times [2022-03-17 23:43:09,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:09,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446933336] [2022-03-17 23:43:09,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:09,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:09,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:09,825 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 23:43:09,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:09,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446933336] [2022-03-17 23:43:09,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446933336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:09,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:09,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:09,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940868422] [2022-03-17 23:43:09,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:09,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:09,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:09,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:09,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:09,826 INFO L87 Difference]: Start difference. First operand 1079 states and 1592 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states 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 23:43:12,529 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 23:43:14,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:14,251 INFO L93 Difference]: Finished difference Result 2165 states and 3196 transitions. [2022-03-17 23:43:14,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:14,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-17 23:43:14,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:14,255 INFO L225 Difference]: With dead ends: 2165 [2022-03-17 23:43:14,255 INFO L226 Difference]: Without dead ends: 1112 [2022-03-17 23:43:14,257 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 23:43:14,257 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 35 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:14,257 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 573 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 23:43:14,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-03-17 23:43:14,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1079. [2022-03-17 23:43:14,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.4767225325884543) internal successors, (1586), 1074 states have internal predecessors, (1586), 3 states have call successors, (3), 3 states 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 23:43:14,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1590 transitions. [2022-03-17 23:43:14,276 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1590 transitions. Word has length 157 [2022-03-17 23:43:14,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:14,276 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1590 transitions. [2022-03-17 23:43:14,276 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states 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 23:43:14,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1590 transitions. [2022-03-17 23:43:14,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-17 23:43:14,278 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:14,279 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:14,279 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 23:43:14,279 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:14,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:14,279 INFO L85 PathProgramCache]: Analyzing trace with hash -195278239, now seen corresponding path program 1 times [2022-03-17 23:43:14,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:14,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039955744] [2022-03-17 23:43:14,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:14,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:14,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:14,396 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-17 23:43:14,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:14,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039955744] [2022-03-17 23:43:14,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039955744] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:14,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:14,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:14,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448885743] [2022-03-17 23:43:14,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:14,397 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:14,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:14,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:14,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:14,398 INFO L87 Difference]: Start difference. First operand 1079 states and 1590 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:16,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:18,997 WARN L534 Checker$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 23:43:19,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:19,979 INFO L93 Difference]: Finished difference Result 2159 states and 3186 transitions. [2022-03-17 23:43:19,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:19,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-17 23:43:19,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:19,983 INFO L225 Difference]: With dead ends: 2159 [2022-03-17 23:43:19,983 INFO L226 Difference]: Without dead ends: 1106 [2022-03-17 23:43:19,984 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 23:43:19,984 INFO L912 BasicCegarLoop]: 246 mSDtfsCounter, 41 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:19,984 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 615 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 443 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:43:19,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-03-17 23:43:19,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1079. [2022-03-17 23:43:19,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1074 states have (on average 1.4748603351955307) internal successors, (1584), 1074 states have internal predecessors, (1584), 3 states have call successors, (3), 3 states 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 23:43:19,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1588 transitions. [2022-03-17 23:43:19,997 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1588 transitions. Word has length 164 [2022-03-17 23:43:19,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:19,997 INFO L478 AbstractCegarLoop]: Abstraction has 1079 states and 1588 transitions. [2022-03-17 23:43:19,997 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:19,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1588 transitions. [2022-03-17 23:43:19,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-17 23:43:19,999 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:19,999 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, 1] [2022-03-17 23:43:19,999 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 23:43:20,000 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:20,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:20,000 INFO L85 PathProgramCache]: Analyzing trace with hash -170870402, now seen corresponding path program 1 times [2022-03-17 23:43:20,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:20,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168085087] [2022-03-17 23:43:20,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:20,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:20,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:20,098 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-17 23:43:20,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:20,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168085087] [2022-03-17 23:43:20,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168085087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:20,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:20,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:43:20,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138785674] [2022-03-17 23:43:20,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:20,099 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:43:20,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:20,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:43:20,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:43:20,100 INFO L87 Difference]: Start difference. First operand 1079 states and 1588 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:21,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:22,686 WARN L534 Checker$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 23:43:24,701 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 23:43:24,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:24,955 INFO L93 Difference]: Finished difference Result 2159 states and 3183 transitions. [2022-03-17 23:43:24,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:43:24,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-03-17 23:43:24,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:24,959 INFO L225 Difference]: With dead ends: 2159 [2022-03-17 23:43:24,959 INFO L226 Difference]: Without dead ends: 1106 [2022-03-17 23:43:24,960 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 23:43:24,961 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:24,961 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 427 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 23:43:24,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-03-17 23:43:24,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1106. [2022-03-17 23:43:24,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1101 states have (on average 1.4704813805631245) internal successors, (1619), 1101 states have internal predecessors, (1619), 3 states have call successors, (3), 3 states 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 23:43:24,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1623 transitions. [2022-03-17 23:43:24,978 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1623 transitions. Word has length 165 [2022-03-17 23:43:24,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:24,978 INFO L478 AbstractCegarLoop]: Abstraction has 1106 states and 1623 transitions. [2022-03-17 23:43:24,978 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:24,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1623 transitions. [2022-03-17 23:43:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-17 23:43:24,980 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:24,981 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, 1] [2022-03-17 23:43:24,981 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 23:43:24,981 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:24,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:24,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1064805313, now seen corresponding path program 1 times [2022-03-17 23:43:24,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:24,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12477474] [2022-03-17 23:43:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:24,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:25,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-03-17 23:43:25,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:25,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12477474] [2022-03-17 23:43:25,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12477474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:25,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:25,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:43:25,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439961187] [2022-03-17 23:43:25,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:25,077 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:43:25,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:25,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:43:25,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:43:25,078 INFO L87 Difference]: Start difference. First operand 1106 states and 1623 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:27,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:27,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:27,349 INFO L93 Difference]: Finished difference Result 2188 states and 3219 transitions. [2022-03-17 23:43:27,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:43:27,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-03-17 23:43:27,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:27,353 INFO L225 Difference]: With dead ends: 2188 [2022-03-17 23:43:27,353 INFO L226 Difference]: Without dead ends: 1108 [2022-03-17 23:43:27,355 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 23:43:27,355 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:27,355 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 406 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:43:27,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2022-03-17 23:43:27,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1108. [2022-03-17 23:43:27,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1103 states have (on average 1.4696282864913872) internal successors, (1621), 1103 states have internal predecessors, (1621), 3 states have call successors, (3), 3 states 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 23:43:27,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1625 transitions. [2022-03-17 23:43:27,371 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1625 transitions. Word has length 165 [2022-03-17 23:43:27,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:27,371 INFO L478 AbstractCegarLoop]: Abstraction has 1108 states and 1625 transitions. [2022-03-17 23:43:27,371 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:27,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1625 transitions. [2022-03-17 23:43:27,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-17 23:43:27,373 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:27,373 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, 1, 1] [2022-03-17 23:43:27,373 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 23:43:27,373 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:27,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:27,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1588960868, now seen corresponding path program 1 times [2022-03-17 23:43:27,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:27,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486399793] [2022-03-17 23:43:27,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:27,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:27,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:27,494 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 23:43:27,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:27,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486399793] [2022-03-17 23:43:27,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486399793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:27,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:27,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:27,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522255437] [2022-03-17 23:43:27,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:27,495 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:27,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:27,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:27,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:27,496 INFO L87 Difference]: Start difference. First operand 1108 states and 1625 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:28,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:30,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:32,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:34,642 WARN L534 Checker$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 23:43:35,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:35,083 INFO L93 Difference]: Finished difference Result 2284 states and 3346 transitions. [2022-03-17 23:43:35,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:35,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-03-17 23:43:35,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:35,087 INFO L225 Difference]: With dead ends: 2284 [2022-03-17 23:43:35,087 INFO L226 Difference]: Without dead ends: 1204 [2022-03-17 23:43:35,088 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:43:35,089 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 76 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:35,089 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 588 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 551 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-03-17 23:43:35,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2022-03-17 23:43:35,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1108. [2022-03-17 23:43:35,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1103 states have (on average 1.4678150498640072) internal successors, (1619), 1103 states have internal predecessors, (1619), 3 states have call successors, (3), 3 states 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 23:43:35,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1623 transitions. [2022-03-17 23:43:35,108 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1623 transitions. Word has length 166 [2022-03-17 23:43:35,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:35,108 INFO L478 AbstractCegarLoop]: Abstraction has 1108 states and 1623 transitions. [2022-03-17 23:43:35,108 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:35,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1623 transitions. [2022-03-17 23:43:35,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-17 23:43:35,110 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:35,110 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, 1, 1] [2022-03-17 23:43:35,111 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 23:43:35,111 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:35,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:35,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1891628692, now seen corresponding path program 1 times [2022-03-17 23:43:35,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:35,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224838776] [2022-03-17 23:43:35,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:35,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:35,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:35,491 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-17 23:43:35,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:35,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224838776] [2022-03-17 23:43:35,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224838776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:35,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:35,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 23:43:35,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283313311] [2022-03-17 23:43:35,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:35,493 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 23:43:35,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:35,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 23:43:35,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-17 23:43:35,493 INFO L87 Difference]: Start difference. First operand 1108 states and 1623 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 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 23:43:36,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:39,230 WARN L534 Checker$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 23:43:41,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:43,275 WARN L534 Checker$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 23:43:45,297 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 23:43:45,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:45,780 INFO L93 Difference]: Finished difference Result 2209 states and 3238 transitions. [2022-03-17 23:43:45,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 23:43:45,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 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 174 [2022-03-17 23:43:45,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:45,784 INFO L225 Difference]: With dead ends: 2209 [2022-03-17 23:43:45,784 INFO L226 Difference]: Without dead ends: 1108 [2022-03-17 23:43:45,786 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 23:43:45,786 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 7 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:45,786 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 892 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 450 Invalid, 4 Unknown, 0 Unchecked, 10.2s Time] [2022-03-17 23:43:45,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2022-03-17 23:43:45,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1108. [2022-03-17 23:43:45,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1103 states have (on average 1.4669084315503174) internal successors, (1618), 1103 states have internal predecessors, (1618), 3 states have call successors, (3), 3 states 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 23:43:45,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1622 transitions. [2022-03-17 23:43:45,806 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1622 transitions. Word has length 174 [2022-03-17 23:43:45,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:45,806 INFO L478 AbstractCegarLoop]: Abstraction has 1108 states and 1622 transitions. [2022-03-17 23:43:45,806 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 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 23:43:45,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1622 transitions. [2022-03-17 23:43:45,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-17 23:43:45,808 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:45,808 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, 1, 1] [2022-03-17 23:43:45,808 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 23:43:45,808 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:45,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:45,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1546712947, now seen corresponding path program 1 times [2022-03-17 23:43:45,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:45,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525550770] [2022-03-17 23:43:45,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:45,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:46,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 169 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-17 23:43:46,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:46,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525550770] [2022-03-17 23:43:46,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525550770] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:43:46,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216279020] [2022-03-17 23:43:46,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:46,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:43:46,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:43:46,700 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 23:43:46,734 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 23:43:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:47,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 189 conjunts are in the unsatisfiable core [2022-03-17 23:43:47,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:43:47,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:47,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:47,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:47,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:47,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:47,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:48,042 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 19 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10547 treesize of output 1500