/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 00:43:48,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 00:43:48,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 00:43:48,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 00:43:48,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 00:43:48,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 00:43:48,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 00:43:48,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 00:43:48,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 00:43:48,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 00:43:48,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 00:43:48,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 00:43:48,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 00:43:48,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 00:43:48,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 00:43:48,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 00:43:48,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 00:43:48,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 00:43:48,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 00:43:48,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 00:43:48,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 00:43:48,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 00:43:48,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 00:43:48,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 00:43:48,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 00:43:48,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 00:43:48,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 00:43:48,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 00:43:48,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 00:43:48,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 00:43:48,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 00:43:48,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 00:43:48,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 00:43:48,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 00:43:48,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 00:43:48,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 00:43:48,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 00:43:48,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 00:43:48,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 00:43:48,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 00:43:48,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 00:43:48,364 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-15 00:43:48,370 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 00:43:48,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 00:43:48,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 00:43:48,371 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 00:43:48,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 00:43:48,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 00:43:48,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 00:43:48,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 00:43:48,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 00:43:48,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 00:43:48,372 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 00:43:48,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 00:43:48,372 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 00:43:48,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 00:43:48,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 00:43:48,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 00:43:48,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 00:43:48,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 00:43:48,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:43:48,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 00:43:48,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 00:43:48,374 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-15 00:43:48,374 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 00:43:48,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 00:43:48,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 00:43:48,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 00:43:48,566 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 00:43:48,567 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 00:43:48,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-02-15 00:43:48,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0437f30bc/ec96a79713784460be1c0cb52204baf6/FLAG0b2c5f701 [2022-02-15 00:43:49,051 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 00:43:49,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-02-15 00:43:49,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0437f30bc/ec96a79713784460be1c0cb52204baf6/FLAG0b2c5f701 [2022-02-15 00:43:49,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0437f30bc/ec96a79713784460be1c0cb52204baf6 [2022-02-15 00:43:49,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 00:43:49,099 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 00:43:49,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 00:43:49,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 00:43:49,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 00:43:49,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:43:49" (1/1) ... [2022-02-15 00:43:49,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1c1124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:49, skipping insertion in model container [2022-02-15 00:43:49,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:43:49" (1/1) ... [2022-02-15 00:43:49,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 00:43:49,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 00:43:49,502 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.08.i.cil-1.c[74696,74709] [2022-02-15 00:43:49,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:43:49,524 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 00:43:49,585 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.08.i.cil-1.c[74696,74709] [2022-02-15 00:43:49,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:43:49,606 INFO L208 MainTranslator]: Completed translation [2022-02-15 00:43:49,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:49 WrapperNode [2022-02-15 00:43:49,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 00:43:49,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 00:43:49,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 00:43:49,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 00:43:49,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:49" (1/1) ... [2022-02-15 00:43:49,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:49" (1/1) ... [2022-02-15 00:43:49,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:49" (1/1) ... [2022-02-15 00:43:49,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:49" (1/1) ... [2022-02-15 00:43:49,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:49" (1/1) ... [2022-02-15 00:43:49,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:49" (1/1) ... [2022-02-15 00:43:49,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:49" (1/1) ... [2022-02-15 00:43:49,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 00:43:49,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 00:43:49,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 00:43:49,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 00:43:49,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:49" (1/1) ... [2022-02-15 00:43:49,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:43:49,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:43:49,776 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) [2022-02-15 00:43:49,803 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 [2022-02-15 00:43:49,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 00:43:49,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 00:43:49,821 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 00:43:49,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-15 00:43:49,821 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-15 00:43:49,821 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 00:43:49,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 00:43:49,822 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 00:43:49,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 00:43:49,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 00:43:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 00:43:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 00:43:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 00:43:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 00:43:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 00:43:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 00:43:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 00:43:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 00:43:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 00:43:49,822 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 00:43:49,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 00:43:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 00:43:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 00:43:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 00:43:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 00:43:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 00:43:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 00:43:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 00:43:49,958 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 00:43:49,960 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 00:43:50,726 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 00:43:51,074 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-15 00:43:51,075 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-15 00:43:51,083 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 00:43:51,089 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 00:43:51,089 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 00:43:51,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:43:51 BoogieIcfgContainer [2022-02-15 00:43:51,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 00:43:51,092 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-15 00:43:51,092 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-15 00:43:51,093 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-15 00:43:51,095 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:43:51" (1/1) ... [2022-02-15 00:43:51,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:43:51 BasicIcfg [2022-02-15 00:43:51,124 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-15 00:43:51,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 00:43:51,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 00:43:51,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 00:43:51,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:43:49" (1/4) ... [2022-02-15 00:43:51,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d713228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:43:51, skipping insertion in model container [2022-02-15 00:43:51,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:43:49" (2/4) ... [2022-02-15 00:43:51,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d713228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:43:51, skipping insertion in model container [2022-02-15 00:43:51,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:43:51" (3/4) ... [2022-02-15 00:43:51,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d713228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:43:51, skipping insertion in model container [2022-02-15 00:43:51,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:43:51" (4/4) ... [2022-02-15 00:43:51,129 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.08.i.cil-1.cJordan [2022-02-15 00:43:51,132 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-15 00:43:51,132 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 00:43:51,165 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 00:43:51,170 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-15 00:43:51,170 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 00:43:51,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 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) [2022-02-15 00:43:51,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-15 00:43:51,208 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:51,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:51,209 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:51,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:51,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1946519082, now seen corresponding path program 1 times [2022-02-15 00:43:51,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:51,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568149656] [2022-02-15 00:43:51,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:51,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:51,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:51,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:43:51,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:51,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568149656] [2022-02-15 00:43:51,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568149656] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:51,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:51,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:51,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425899604] [2022-02-15 00:43:51,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:51,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:51,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:51,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:51,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:51,597 INFO L87 Difference]: Start difference. First operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 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 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:53,273 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 [] [2022-02-15 00:43:55,292 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 [] [2022-02-15 00:43:56,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:43:56,845 INFO L93 Difference]: Finished difference Result 192 states and 314 transitions. [2022-02-15 00:43:56,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:43:56,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-02-15 00:43:56,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:43:56,854 INFO L225 Difference]: With dead ends: 192 [2022-02-15 00:43:56,854 INFO L226 Difference]: Without dead ends: 171 [2022-02-15 00:43:56,855 INFO L932 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 [2022-02-15 00:43:56,857 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 34 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:43:56,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 613 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:43:56,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-02-15 00:43:56,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 154. [2022-02-15 00:43:56,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 1.5570469798657718) internal successors, (232), 149 states have internal predecessors, (232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:56,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 236 transitions. [2022-02-15 00:43:56,887 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 236 transitions. Word has length 50 [2022-02-15 00:43:56,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:43:56,887 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 236 transitions. [2022-02-15 00:43:56,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:43:56,887 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 236 transitions. [2022-02-15 00:43:56,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-15 00:43:56,889 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:43:56,889 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:43:56,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 00:43:56,889 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:43:56,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:43:56,890 INFO L85 PathProgramCache]: Analyzing trace with hash 888216424, now seen corresponding path program 1 times [2022-02-15 00:43:56,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:43:56,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298364059] [2022-02-15 00:43:56,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:43:56,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:43:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:57,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:43:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:43:57,094 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:43:57,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:43:57,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298364059] [2022-02-15 00:43:57,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298364059] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:43:57,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:43:57,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:43:57,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250069613] [2022-02-15 00:43:57,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:43:57,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:43:57,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:43:57,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:43:57,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:43:57,106 INFO L87 Difference]: Start difference. First operand 154 states and 236 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) [2022-02-15 00:43:58,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:43:59,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:01,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:02,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:03,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:03,346 INFO L93 Difference]: Finished difference Result 272 states and 418 transitions. [2022-02-15 00:44:03,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:03,346 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 [2022-02-15 00:44:03,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:03,348 INFO L225 Difference]: With dead ends: 272 [2022-02-15 00:44:03,348 INFO L226 Difference]: Without dead ends: 272 [2022-02-15 00:44:03,349 INFO L932 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 [2022-02-15 00:44:03,349 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 145 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:03,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 636 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 625 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 00:44:03,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-02-15 00:44:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 170. [2022-02-15 00:44:03,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5575757575757576) internal successors, (257), 165 states have internal predecessors, (257), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:03,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 261 transitions. [2022-02-15 00:44:03,357 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 261 transitions. Word has length 63 [2022-02-15 00:44:03,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:03,358 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 261 transitions. [2022-02-15 00:44:03,358 INFO L471 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) [2022-02-15 00:44:03,358 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 261 transitions. [2022-02-15 00:44:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 00:44:03,359 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:03,359 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:03,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 00:44:03,359 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:03,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:03,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1909217456, now seen corresponding path program 1 times [2022-02-15 00:44:03,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:03,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926757817] [2022-02-15 00:44:03,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:03,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:03,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:03,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:44:03,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:03,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926757817] [2022-02-15 00:44:03,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926757817] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:03,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:03,477 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:03,477 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558367865] [2022-02-15 00:44:03,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:03,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:03,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:03,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:03,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:03,478 INFO L87 Difference]: Start difference. First operand 170 states and 261 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) [2022-02-15 00:44:05,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:08,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:10,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:10,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:10,592 INFO L93 Difference]: Finished difference Result 287 states and 441 transitions. [2022-02-15 00:44:10,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:10,592 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 [2022-02-15 00:44:10,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:10,594 INFO L225 Difference]: With dead ends: 287 [2022-02-15 00:44:10,594 INFO L226 Difference]: Without dead ends: 287 [2022-02-15 00:44:10,594 INFO L932 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 [2022-02-15 00:44:10,595 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 150 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:10,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2022-02-15 00:44:10,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-15 00:44:10,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 181. [2022-02-15 00:44:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5397727272727273) internal successors, (271), 176 states have internal predecessors, (271), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:10,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 275 transitions. [2022-02-15 00:44:10,602 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 275 transitions. Word has length 64 [2022-02-15 00:44:10,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:10,602 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 275 transitions. [2022-02-15 00:44:10,602 INFO L471 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) [2022-02-15 00:44:10,602 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 275 transitions. [2022-02-15 00:44:10,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 00:44:10,603 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:10,603 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:10,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 00:44:10,604 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:10,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:10,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1031303024, now seen corresponding path program 1 times [2022-02-15 00:44:10,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:10,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961535295] [2022-02-15 00:44:10,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:10,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:10,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:10,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:44:10,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:10,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961535295] [2022-02-15 00:44:10,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961535295] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:10,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:10,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:10,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008419844] [2022-02-15 00:44:10,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:10,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:10,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:10,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:10,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:10,752 INFO L87 Difference]: Start difference. First operand 181 states and 275 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) [2022-02-15 00:44:12,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:14,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:16,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:17,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:17,033 INFO L93 Difference]: Finished difference Result 287 states and 438 transitions. [2022-02-15 00:44:17,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:17,033 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 [2022-02-15 00:44:17,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:17,034 INFO L225 Difference]: With dead ends: 287 [2022-02-15 00:44:17,034 INFO L226 Difference]: Without dead ends: 287 [2022-02-15 00:44:17,034 INFO L932 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 [2022-02-15 00:44:17,035 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 148 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:17,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 00:44:17,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-15 00:44:17,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 182. [2022-02-15 00:44:17,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.5254237288135593) internal successors, (270), 177 states have internal predecessors, (270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:17,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 274 transitions. [2022-02-15 00:44:17,041 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 274 transitions. Word has length 64 [2022-02-15 00:44:17,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:17,041 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 274 transitions. [2022-02-15 00:44:17,041 INFO L471 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) [2022-02-15 00:44:17,041 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 274 transitions. [2022-02-15 00:44:17,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 00:44:17,042 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:17,042 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:17,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 00:44:17,043 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:17,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:17,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1335121200, now seen corresponding path program 1 times [2022-02-15 00:44:17,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:17,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957274356] [2022-02-15 00:44:17,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:17,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:17,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:17,191 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:44:17,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:17,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957274356] [2022-02-15 00:44:17,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957274356] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:17,192 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:17,192 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:17,192 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885723304] [2022-02-15 00:44:17,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:17,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:17,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:17,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:17,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:17,194 INFO L87 Difference]: Start difference. First operand 182 states and 274 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) [2022-02-15 00:44:18,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:20,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:22,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:24,345 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 [] [2022-02-15 00:44:24,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:24,708 INFO L93 Difference]: Finished difference Result 197 states and 292 transitions. [2022-02-15 00:44:24,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:24,709 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 [2022-02-15 00:44:24,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:24,710 INFO L225 Difference]: With dead ends: 197 [2022-02-15 00:44:24,710 INFO L226 Difference]: Without dead ends: 197 [2022-02-15 00:44:24,710 INFO L932 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 [2022-02-15 00:44:24,710 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 19 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:24,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 493 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 360 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-02-15 00:44:24,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-02-15 00:44:24,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 182. [2022-02-15 00:44:24,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.5197740112994351) internal successors, (269), 177 states have internal predecessors, (269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:24,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 273 transitions. [2022-02-15 00:44:24,715 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 273 transitions. Word has length 64 [2022-02-15 00:44:24,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:24,715 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 273 transitions. [2022-02-15 00:44:24,715 INFO L471 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) [2022-02-15 00:44:24,715 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 273 transitions. [2022-02-15 00:44:24,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 00:44:24,716 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:24,716 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:24,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 00:44:24,716 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:24,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:24,716 INFO L85 PathProgramCache]: Analyzing trace with hash -25859152, now seen corresponding path program 1 times [2022-02-15 00:44:24,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:24,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802072025] [2022-02-15 00:44:24,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:24,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:24,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:24,874 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:44:24,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:24,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802072025] [2022-02-15 00:44:24,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802072025] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:24,875 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:24,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:24,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580761579] [2022-02-15 00:44:24,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:24,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:24,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:24,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:24,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:24,877 INFO L87 Difference]: Start difference. First operand 182 states and 273 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) [2022-02-15 00:44:27,568 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 [] [2022-02-15 00:44:30,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:30,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:30,610 INFO L93 Difference]: Finished difference Result 195 states and 289 transitions. [2022-02-15 00:44:30,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:30,610 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 [2022-02-15 00:44:30,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:30,611 INFO L225 Difference]: With dead ends: 195 [2022-02-15 00:44:30,611 INFO L226 Difference]: Without dead ends: 195 [2022-02-15 00:44:30,611 INFO L932 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 [2022-02-15 00:44:30,612 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 19 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:30,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 497 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-15 00:44:30,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-02-15 00:44:30,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 182. [2022-02-15 00:44:30,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.5141242937853108) internal successors, (268), 177 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:30,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 272 transitions. [2022-02-15 00:44:30,617 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 272 transitions. Word has length 64 [2022-02-15 00:44:30,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:30,617 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 272 transitions. [2022-02-15 00:44:30,618 INFO L471 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) [2022-02-15 00:44:30,618 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 272 transitions. [2022-02-15 00:44:30,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-15 00:44:30,618 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:30,618 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:30,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 00:44:30,619 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:30,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:30,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1757731560, now seen corresponding path program 1 times [2022-02-15 00:44:30,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:30,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159236121] [2022-02-15 00:44:30,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:30,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:30,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:30,764 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:44:30,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:30,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159236121] [2022-02-15 00:44:30,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159236121] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:30,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:30,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:30,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045733924] [2022-02-15 00:44:30,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:30,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:30,766 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:30,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:30,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:30,767 INFO L87 Difference]: Start difference. First operand 182 states and 272 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) [2022-02-15 00:44:32,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:33,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:35,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:37,986 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 [] [2022-02-15 00:44:38,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:38,340 INFO L93 Difference]: Finished difference Result 195 states and 288 transitions. [2022-02-15 00:44:38,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:38,341 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 [2022-02-15 00:44:38,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:38,342 INFO L225 Difference]: With dead ends: 195 [2022-02-15 00:44:38,342 INFO L226 Difference]: Without dead ends: 195 [2022-02-15 00:44:38,342 INFO L932 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 [2022-02-15 00:44:38,342 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 22 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:38,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 497 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 356 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-02-15 00:44:38,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-02-15 00:44:38,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 182. [2022-02-15 00:44:38,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.5084745762711864) internal successors, (267), 177 states have internal predecessors, (267), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:38,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 271 transitions. [2022-02-15 00:44:38,346 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 271 transitions. Word has length 65 [2022-02-15 00:44:38,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:38,346 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 271 transitions. [2022-02-15 00:44:38,347 INFO L471 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) [2022-02-15 00:44:38,347 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 271 transitions. [2022-02-15 00:44:38,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 00:44:38,347 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:38,347 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:38,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 00:44:38,347 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:38,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:38,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2096002932, now seen corresponding path program 1 times [2022-02-15 00:44:38,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:38,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940585795] [2022-02-15 00:44:38,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:38,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:38,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:38,434 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:44:38,434 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:38,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940585795] [2022-02-15 00:44:38,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940585795] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:38,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:38,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:38,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255493916] [2022-02-15 00:44:38,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:38,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:38,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:38,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:38,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:38,435 INFO L87 Difference]: Start difference. First operand 182 states and 271 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) [2022-02-15 00:44:42,369 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 [] [2022-02-15 00:44:43,612 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 [] [2022-02-15 00:44:44,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:44,051 INFO L93 Difference]: Finished difference Result 287 states and 432 transitions. [2022-02-15 00:44:44,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:44,051 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 [2022-02-15 00:44:44,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:44,052 INFO L225 Difference]: With dead ends: 287 [2022-02-15 00:44:44,052 INFO L226 Difference]: Without dead ends: 287 [2022-02-15 00:44:44,052 INFO L932 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 [2022-02-15 00:44:44,053 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 145 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:44,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-15 00:44:44,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-15 00:44:44,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 184. [2022-02-15 00:44:44,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 179 states have (on average 1.4972067039106145) internal successors, (268), 179 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:44,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 272 transitions. [2022-02-15 00:44:44,057 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 272 transitions. Word has length 66 [2022-02-15 00:44:44,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:44,063 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 272 transitions. [2022-02-15 00:44:44,064 INFO L471 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) [2022-02-15 00:44:44,064 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 272 transitions. [2022-02-15 00:44:44,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 00:44:44,066 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:44,066 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:44,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 00:44:44,066 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:44,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:44,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1315364651, now seen corresponding path program 1 times [2022-02-15 00:44:44,067 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:44,067 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948025520] [2022-02-15 00:44:44,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:44,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:44,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:44,198 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:44:44,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:44,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948025520] [2022-02-15 00:44:44,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948025520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:44,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:44,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:44,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532676951] [2022-02-15 00:44:44,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:44,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:44,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:44,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:44,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:44,200 INFO L87 Difference]: Start difference. First operand 184 states and 272 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) [2022-02-15 00:44:46,601 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 [] [2022-02-15 00:44:48,627 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 [] [2022-02-15 00:44:48,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:48,937 INFO L93 Difference]: Finished difference Result 187 states and 275 transitions. [2022-02-15 00:44:48,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:48,937 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 [2022-02-15 00:44:48,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:48,938 INFO L225 Difference]: With dead ends: 187 [2022-02-15 00:44:48,938 INFO L226 Difference]: Without dead ends: 187 [2022-02-15 00:44:48,939 INFO L932 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 [2022-02-15 00:44:48,939 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 11 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:48,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 511 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-02-15 00:44:48,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-02-15 00:44:48,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 184. [2022-02-15 00:44:48,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 179 states have (on average 1.4916201117318435) internal successors, (267), 179 states have internal predecessors, (267), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:48,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 271 transitions. [2022-02-15 00:44:48,945 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 271 transitions. Word has length 67 [2022-02-15 00:44:48,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:48,945 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 271 transitions. [2022-02-15 00:44:48,946 INFO L471 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) [2022-02-15 00:44:48,946 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 271 transitions. [2022-02-15 00:44:48,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 00:44:48,947 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:48,947 INFO L514 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] [2022-02-15 00:44:48,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 00:44:48,947 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:48,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:48,948 INFO L85 PathProgramCache]: Analyzing trace with hash 972914138, now seen corresponding path program 1 times [2022-02-15 00:44:48,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:48,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485205858] [2022-02-15 00:44:48,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:48,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:49,072 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:44:49,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:49,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485205858] [2022-02-15 00:44:49,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485205858] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:49,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:49,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:49,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852132203] [2022-02-15 00:44:49,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:49,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:49,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:49,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:49,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:49,074 INFO L87 Difference]: Start difference. First operand 184 states and 271 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) [2022-02-15 00:44:50,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:51,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:53,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:54,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:44:54,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:44:54,998 INFO L93 Difference]: Finished difference Result 226 states and 331 transitions. [2022-02-15 00:44:54,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:44:54,999 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 [2022-02-15 00:44:54,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:44:54,999 INFO L225 Difference]: With dead ends: 226 [2022-02-15 00:44:55,000 INFO L226 Difference]: Without dead ends: 226 [2022-02-15 00:44:55,000 INFO L932 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 [2022-02-15 00:44:55,000 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 30 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:44:55,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 511 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-02-15 00:44:55,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-02-15 00:44:55,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 206. [2022-02-15 00:44:55,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.4975124378109452) internal successors, (301), 201 states have internal predecessors, (301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:55,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 305 transitions. [2022-02-15 00:44:55,004 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 305 transitions. Word has length 67 [2022-02-15 00:44:55,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:44:55,005 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 305 transitions. [2022-02-15 00:44:55,005 INFO L471 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) [2022-02-15 00:44:55,005 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 305 transitions. [2022-02-15 00:44:55,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-02-15 00:44:55,005 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:44:55,005 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:44:55,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 00:44:55,006 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:44:55,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:44:55,006 INFO L85 PathProgramCache]: Analyzing trace with hash -230336556, now seen corresponding path program 1 times [2022-02-15 00:44:55,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:44:55,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428689400] [2022-02-15 00:44:55,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:44:55,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:44:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:55,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:44:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:44:55,119 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:44:55,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:44:55,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428689400] [2022-02-15 00:44:55,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428689400] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:44:55,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:44:55,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:44:55,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588268691] [2022-02-15 00:44:55,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:44:55,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:44:55,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:44:55,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:44:55,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:44:55,121 INFO L87 Difference]: Start difference. First operand 206 states and 305 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:44:56,297 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 [] [2022-02-15 00:44:59,875 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 [] [2022-02-15 00:45:00,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:00,205 INFO L93 Difference]: Finished difference Result 225 states and 329 transitions. [2022-02-15 00:45:00,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:00,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-02-15 00:45:00,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:00,207 INFO L225 Difference]: With dead ends: 225 [2022-02-15 00:45:00,207 INFO L226 Difference]: Without dead ends: 225 [2022-02-15 00:45:00,208 INFO L932 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 [2022-02-15 00:45:00,208 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 33 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:00,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 513 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-15 00:45:00,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-02-15 00:45:00,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 206. [2022-02-15 00:45:00,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.492537313432836) internal successors, (300), 201 states have internal predecessors, (300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:00,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 304 transitions. [2022-02-15 00:45:00,212 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 304 transitions. Word has length 81 [2022-02-15 00:45:00,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:00,212 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 304 transitions. [2022-02-15 00:45:00,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:00,212 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 304 transitions. [2022-02-15 00:45:00,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-02-15 00:45:00,213 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:00,213 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:00,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 00:45:00,213 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:00,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:00,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1078925492, now seen corresponding path program 1 times [2022-02-15 00:45:00,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:00,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972695810] [2022-02-15 00:45:00,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:00,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:00,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:00,332 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:45:00,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:00,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972695810] [2022-02-15 00:45:00,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972695810] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:00,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:00,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:00,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573025299] [2022-02-15 00:45:00,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:00,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:00,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:00,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:00,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:00,333 INFO L87 Difference]: Start difference. First operand 206 states and 304 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:02,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:05,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:07,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:07,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:07,380 INFO L93 Difference]: Finished difference Result 223 states and 326 transitions. [2022-02-15 00:45:07,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:07,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-02-15 00:45:07,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:07,381 INFO L225 Difference]: With dead ends: 223 [2022-02-15 00:45:07,381 INFO L226 Difference]: Without dead ends: 223 [2022-02-15 00:45:07,381 INFO L932 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 [2022-02-15 00:45:07,382 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 33 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:07,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 517 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-02-15 00:45:07,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-02-15 00:45:07,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 206. [2022-02-15 00:45:07,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 201 states have (on average 1.4875621890547264) internal successors, (299), 201 states have internal predecessors, (299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:07,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 303 transitions. [2022-02-15 00:45:07,385 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 303 transitions. Word has length 81 [2022-02-15 00:45:07,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:07,386 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 303 transitions. [2022-02-15 00:45:07,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:07,386 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 303 transitions. [2022-02-15 00:45:07,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-02-15 00:45:07,386 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:07,386 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:07,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 00:45:07,386 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:07,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:07,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1646317156, now seen corresponding path program 1 times [2022-02-15 00:45:07,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:07,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707483598] [2022-02-15 00:45:07,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:07,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:07,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:07,489 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-15 00:45:07,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:07,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707483598] [2022-02-15 00:45:07,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707483598] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:07,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:07,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:07,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992696605] [2022-02-15 00:45:07,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:07,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:07,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:07,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:07,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:07,491 INFO L87 Difference]: Start difference. First operand 206 states and 303 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:09,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:11,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:13,660 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 [] [2022-02-15 00:45:14,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:14,032 INFO L93 Difference]: Finished difference Result 220 states and 321 transitions. [2022-02-15 00:45:14,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:14,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-02-15 00:45:14,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:14,034 INFO L225 Difference]: With dead ends: 220 [2022-02-15 00:45:14,034 INFO L226 Difference]: Without dead ends: 220 [2022-02-15 00:45:14,034 INFO L932 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 [2022-02-15 00:45:14,034 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 19 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:14,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 574 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 393 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-02-15 00:45:14,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-02-15 00:45:14,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 208. [2022-02-15 00:45:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.4876847290640394) internal successors, (302), 203 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 306 transitions. [2022-02-15 00:45:14,038 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 306 transitions. Word has length 82 [2022-02-15 00:45:14,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:14,038 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 306 transitions. [2022-02-15 00:45:14,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:14,038 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 306 transitions. [2022-02-15 00:45:14,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-15 00:45:14,039 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:14,039 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:14,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 00:45:14,039 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:14,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:14,039 INFO L85 PathProgramCache]: Analyzing trace with hash 2019421135, now seen corresponding path program 1 times [2022-02-15 00:45:14,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:14,039 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104398006] [2022-02-15 00:45:14,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:14,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:14,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:45:14,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:14,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104398006] [2022-02-15 00:45:14,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104398006] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:14,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:14,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:14,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896042548] [2022-02-15 00:45:14,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:14,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:14,139 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:14,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:14,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:14,140 INFO L87 Difference]: Start difference. First operand 208 states and 306 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) [2022-02-15 00:45:15,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:17,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:20,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:21,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:21,135 INFO L93 Difference]: Finished difference Result 309 states and 459 transitions. [2022-02-15 00:45:21,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:21,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-02-15 00:45:21,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:21,136 INFO L225 Difference]: With dead ends: 309 [2022-02-15 00:45:21,136 INFO L226 Difference]: Without dead ends: 309 [2022-02-15 00:45:21,137 INFO L932 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 [2022-02-15 00:45:21,137 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 146 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:21,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-02-15 00:45:21,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-02-15 00:45:21,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 208. [2022-02-15 00:45:21,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.4729064039408868) internal successors, (299), 203 states have internal predecessors, (299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:21,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 303 transitions. [2022-02-15 00:45:21,169 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 303 transitions. Word has length 83 [2022-02-15 00:45:21,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:21,169 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 303 transitions. [2022-02-15 00:45:21,169 INFO L471 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) [2022-02-15 00:45:21,169 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 303 transitions. [2022-02-15 00:45:21,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-15 00:45:21,169 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:21,169 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:21,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 00:45:21,170 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:21,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:21,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1213038316, now seen corresponding path program 1 times [2022-02-15 00:45:21,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:21,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428698665] [2022-02-15 00:45:21,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:21,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:21,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:21,259 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:45:21,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:21,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428698665] [2022-02-15 00:45:21,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428698665] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:21,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:21,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:21,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881496505] [2022-02-15 00:45:21,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:21,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:21,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:21,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:21,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:21,260 INFO L87 Difference]: Start difference. First operand 208 states and 303 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) [2022-02-15 00:45:24,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:26,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:26,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:26,754 INFO L93 Difference]: Finished difference Result 299 states and 443 transitions. [2022-02-15 00:45:26,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:26,755 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 85 [2022-02-15 00:45:26,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:26,756 INFO L225 Difference]: With dead ends: 299 [2022-02-15 00:45:26,756 INFO L226 Difference]: Without dead ends: 299 [2022-02-15 00:45:26,756 INFO L932 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 [2022-02-15 00:45:26,756 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 136 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:26,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 366 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 00:45:26,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-02-15 00:45:26,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 208. [2022-02-15 00:45:26,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.458128078817734) internal successors, (296), 203 states have internal predecessors, (296), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:26,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 300 transitions. [2022-02-15 00:45:26,760 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 300 transitions. Word has length 85 [2022-02-15 00:45:26,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:26,760 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 300 transitions. [2022-02-15 00:45:26,760 INFO L471 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) [2022-02-15 00:45:26,760 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 300 transitions. [2022-02-15 00:45:26,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-15 00:45:26,761 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:26,761 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:26,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 00:45:26,761 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:26,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:26,761 INFO L85 PathProgramCache]: Analyzing trace with hash 733553435, now seen corresponding path program 1 times [2022-02-15 00:45:26,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:26,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61323175] [2022-02-15 00:45:26,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:26,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:26,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:26,879 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:45:26,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:26,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61323175] [2022-02-15 00:45:26,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61323175] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:26,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:26,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:26,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96150129] [2022-02-15 00:45:26,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:26,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:26,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:26,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:26,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:26,880 INFO L87 Difference]: Start difference. First operand 208 states and 300 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:30,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:32,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:32,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:32,878 INFO L93 Difference]: Finished difference Result 305 states and 446 transitions. [2022-02-15 00:45:32,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:32,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-02-15 00:45:32,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:32,879 INFO L225 Difference]: With dead ends: 305 [2022-02-15 00:45:32,879 INFO L226 Difference]: Without dead ends: 305 [2022-02-15 00:45:32,879 INFO L932 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 [2022-02-15 00:45:32,880 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 84 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:32,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 499 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 00:45:32,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-02-15 00:45:32,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 249. [2022-02-15 00:45:32,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 244 states have (on average 1.4918032786885247) internal successors, (364), 244 states have internal predecessors, (364), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:32,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 368 transitions. [2022-02-15 00:45:32,884 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 368 transitions. Word has length 89 [2022-02-15 00:45:32,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:32,884 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 368 transitions. [2022-02-15 00:45:32,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:32,884 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 368 transitions. [2022-02-15 00:45:32,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-15 00:45:32,885 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:32,885 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:32,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 00:45:32,885 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:32,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:32,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1202106852, now seen corresponding path program 1 times [2022-02-15 00:45:32,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:32,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368615925] [2022-02-15 00:45:32,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:32,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:32,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:32,997 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:45:32,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:32,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368615925] [2022-02-15 00:45:32,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368615925] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:32,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:32,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:32,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514732001] [2022-02-15 00:45:32,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:32,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:32,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:32,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:32,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:32,999 INFO L87 Difference]: Start difference. First operand 249 states and 368 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:34,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:36,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:38,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:39,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:40,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:40,253 INFO L93 Difference]: Finished difference Result 357 states and 532 transitions. [2022-02-15 00:45:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:40,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-02-15 00:45:40,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:40,255 INFO L225 Difference]: With dead ends: 357 [2022-02-15 00:45:40,255 INFO L226 Difference]: Without dead ends: 357 [2022-02-15 00:45:40,255 INFO L932 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 [2022-02-15 00:45:40,256 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 111 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:40,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 368 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-02-15 00:45:40,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-02-15 00:45:40,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 248. [2022-02-15 00:45:40,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.4938271604938271) internal successors, (363), 243 states have internal predecessors, (363), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:40,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 367 transitions. [2022-02-15 00:45:40,260 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 367 transitions. Word has length 89 [2022-02-15 00:45:40,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:40,260 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 367 transitions. [2022-02-15 00:45:40,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:40,260 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 367 transitions. [2022-02-15 00:45:40,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 00:45:40,261 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:40,261 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:40,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 00:45:40,261 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:40,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:40,261 INFO L85 PathProgramCache]: Analyzing trace with hash -2117392348, now seen corresponding path program 1 times [2022-02-15 00:45:40,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:40,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299654239] [2022-02-15 00:45:40,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:40,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:40,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:45:40,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:40,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299654239] [2022-02-15 00:45:40,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299654239] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:40,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:40,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:40,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609839847] [2022-02-15 00:45:40,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:40,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:40,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:40,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:40,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:40,369 INFO L87 Difference]: Start difference. First operand 248 states and 367 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:42,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:44,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:46,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:47,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:47,147 INFO L93 Difference]: Finished difference Result 337 states and 501 transitions. [2022-02-15 00:45:47,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:47,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-02-15 00:45:47,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:47,149 INFO L225 Difference]: With dead ends: 337 [2022-02-15 00:45:47,149 INFO L226 Difference]: Without dead ends: 337 [2022-02-15 00:45:47,149 INFO L932 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 [2022-02-15 00:45:47,149 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 73 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:47,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 483 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 503 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-02-15 00:45:47,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-02-15 00:45:47,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 290. [2022-02-15 00:45:47,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 285 states have (on average 1.5157894736842106) internal successors, (432), 285 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) [2022-02-15 00:45:47,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 436 transitions. [2022-02-15 00:45:47,153 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 436 transitions. Word has length 90 [2022-02-15 00:45:47,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:47,153 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 436 transitions. [2022-02-15 00:45:47,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:47,154 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 436 transitions. [2022-02-15 00:45:47,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-02-15 00:45:47,154 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:47,154 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:47,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 00:45:47,154 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:47,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:47,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1993319101, now seen corresponding path program 1 times [2022-02-15 00:45:47,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:47,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674236942] [2022-02-15 00:45:47,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:47,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:47,242 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:45:47,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:47,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674236942] [2022-02-15 00:45:47,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674236942] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:47,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:47,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:47,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140052154] [2022-02-15 00:45:47,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:47,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:47,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:47,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:47,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:47,243 INFO L87 Difference]: Start difference. First operand 290 states and 436 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:49,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:51,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:53,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:54,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:54,237 INFO L93 Difference]: Finished difference Result 328 states and 490 transitions. [2022-02-15 00:45:54,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:54,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-02-15 00:45:54,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:54,239 INFO L225 Difference]: With dead ends: 328 [2022-02-15 00:45:54,239 INFO L226 Difference]: Without dead ends: 328 [2022-02-15 00:45:54,239 INFO L932 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 [2022-02-15 00:45:54,239 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 27 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:54,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 593 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 438 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-02-15 00:45:54,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-02-15 00:45:54,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 314. [2022-02-15 00:45:54,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5145631067961165) internal successors, (468), 309 states have internal predecessors, (468), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:54,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 472 transitions. [2022-02-15 00:45:54,243 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 472 transitions. Word has length 90 [2022-02-15 00:45:54,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:54,244 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 472 transitions. [2022-02-15 00:45:54,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:54,244 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 472 transitions. [2022-02-15 00:45:54,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-15 00:45:54,244 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:54,245 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:54,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 00:45:54,245 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:54,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:54,245 INFO L85 PathProgramCache]: Analyzing trace with hash -676029654, now seen corresponding path program 1 times [2022-02-15 00:45:54,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:54,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204771230] [2022-02-15 00:45:54,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:54,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:54,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:54,337 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:45:54,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:54,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204771230] [2022-02-15 00:45:54,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204771230] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:54,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:54,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:54,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542063728] [2022-02-15 00:45:54,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:54,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:54,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:54,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:54,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:54,338 INFO L87 Difference]: Start difference. First operand 314 states and 472 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:56,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:58,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:00,827 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 [] [2022-02-15 00:46:01,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:01,219 INFO L93 Difference]: Finished difference Result 404 states and 610 transitions. [2022-02-15 00:46:01,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:01,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-02-15 00:46:01,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:01,220 INFO L225 Difference]: With dead ends: 404 [2022-02-15 00:46:01,220 INFO L226 Difference]: Without dead ends: 404 [2022-02-15 00:46:01,221 INFO L932 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 [2022-02-15 00:46:01,221 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 132 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 55 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:01,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 370 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 461 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-15 00:46:01,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-02-15 00:46:01,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 316. [2022-02-15 00:46:01,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.504823151125402) internal successors, (468), 311 states have internal predecessors, (468), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:01,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 472 transitions. [2022-02-15 00:46:01,225 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 472 transitions. Word has length 104 [2022-02-15 00:46:01,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:01,225 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 472 transitions. [2022-02-15 00:46:01,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:01,226 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 472 transitions. [2022-02-15 00:46:01,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-15 00:46:01,226 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:01,226 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:01,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 00:46:01,226 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:01,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:01,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1256388170, now seen corresponding path program 1 times [2022-02-15 00:46:01,229 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:01,229 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563024136] [2022-02-15 00:46:01,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:01,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:01,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:46:01,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:01,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563024136] [2022-02-15 00:46:01,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563024136] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:01,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:01,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:01,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724857881] [2022-02-15 00:46:01,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:01,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:01,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:01,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:01,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:01,325 INFO L87 Difference]: Start difference. First operand 316 states and 472 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:02,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:04,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:06,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:07,206 INFO L93 Difference]: Finished difference Result 404 states and 606 transitions. [2022-02-15 00:46:07,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:07,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-02-15 00:46:07,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:07,207 INFO L225 Difference]: With dead ends: 404 [2022-02-15 00:46:07,207 INFO L226 Difference]: Without dead ends: 404 [2022-02-15 00:46:07,207 INFO L932 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 [2022-02-15 00:46:07,208 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 132 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:07,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 374 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-02-15 00:46:07,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-02-15 00:46:07,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 316. [2022-02-15 00:46:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.4919614147909968) internal successors, (464), 311 states have internal predecessors, (464), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:07,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 468 transitions. [2022-02-15 00:46:07,214 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 468 transitions. Word has length 104 [2022-02-15 00:46:07,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:07,214 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 468 transitions. [2022-02-15 00:46:07,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:07,214 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 468 transitions. [2022-02-15 00:46:07,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-02-15 00:46:07,215 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:07,215 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:07,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 00:46:07,215 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:07,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:07,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1066855646, now seen corresponding path program 1 times [2022-02-15 00:46:07,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:07,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483775822] [2022-02-15 00:46:07,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:07,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:07,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:07,350 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:46:07,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:07,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483775822] [2022-02-15 00:46:07,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483775822] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:07,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:07,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:07,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570549551] [2022-02-15 00:46:07,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:07,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:07,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:07,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:07,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:07,352 INFO L87 Difference]: Start difference. First operand 316 states and 468 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:09,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:11,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:12,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:12,509 INFO L93 Difference]: Finished difference Result 404 states and 603 transitions. [2022-02-15 00:46:12,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:12,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-02-15 00:46:12,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:12,512 INFO L225 Difference]: With dead ends: 404 [2022-02-15 00:46:12,512 INFO L226 Difference]: Without dead ends: 404 [2022-02-15 00:46:12,512 INFO L932 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 [2022-02-15 00:46:12,513 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 124 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:12,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 384 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-02-15 00:46:12,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-02-15 00:46:12,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 322. [2022-02-15 00:46:12,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 317 states have (on average 1.4921135646687698) internal successors, (473), 317 states have internal predecessors, (473), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:12,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 477 transitions. [2022-02-15 00:46:12,517 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 477 transitions. Word has length 112 [2022-02-15 00:46:12,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:12,517 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 477 transitions. [2022-02-15 00:46:12,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:12,517 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 477 transitions. [2022-02-15 00:46:12,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-02-15 00:46:12,518 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:12,518 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:12,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 00:46:12,518 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:12,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:12,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1053431553, now seen corresponding path program 1 times [2022-02-15 00:46:12,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:12,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692053698] [2022-02-15 00:46:12,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:12,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:12,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:12,642 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-15 00:46:12,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:12,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692053698] [2022-02-15 00:46:12,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692053698] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:12,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:12,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:46:12,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221270862] [2022-02-15 00:46:12,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:12,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:46:12,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:12,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:46:12,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:46:12,643 INFO L87 Difference]: Start difference. First operand 322 states and 477 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) [2022-02-15 00:46:13,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:15,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:17,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:18,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:18,082 INFO L93 Difference]: Finished difference Result 612 states and 908 transitions. [2022-02-15 00:46:18,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:46:18,082 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 112 [2022-02-15 00:46:18,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:18,084 INFO L225 Difference]: With dead ends: 612 [2022-02-15 00:46:18,084 INFO L226 Difference]: Without dead ends: 612 [2022-02-15 00:46:18,084 INFO L932 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 [2022-02-15 00:46:18,084 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:18,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 442 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-15 00:46:18,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2022-02-15 00:46:18,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2022-02-15 00:46:18,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 607 states have (on average 1.4892915980230643) internal successors, (904), 607 states have internal predecessors, (904), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 908 transitions. [2022-02-15 00:46:18,091 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 908 transitions. Word has length 112 [2022-02-15 00:46:18,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:18,094 INFO L470 AbstractCegarLoop]: Abstraction has 612 states and 908 transitions. [2022-02-15 00:46:18,094 INFO L471 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) [2022-02-15 00:46:18,094 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 908 transitions. [2022-02-15 00:46:18,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-02-15 00:46:18,095 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:18,095 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:18,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 00:46:18,095 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:18,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:18,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1460035808, now seen corresponding path program 1 times [2022-02-15 00:46:18,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:18,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480693427] [2022-02-15 00:46:18,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:18,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:18,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:18,180 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-15 00:46:18,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:18,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480693427] [2022-02-15 00:46:18,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480693427] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:18,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:18,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:46:18,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218506538] [2022-02-15 00:46:18,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:18,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:46:18,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:18,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:46:18,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:46:18,181 INFO L87 Difference]: Start difference. First operand 612 states and 908 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:19,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:21,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:23,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:23,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:23,721 INFO L93 Difference]: Finished difference Result 639 states and 943 transitions. [2022-02-15 00:46:23,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:46:23,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-02-15 00:46:23,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:23,723 INFO L225 Difference]: With dead ends: 639 [2022-02-15 00:46:23,723 INFO L226 Difference]: Without dead ends: 639 [2022-02-15 00:46:23,723 INFO L932 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 [2022-02-15 00:46:23,723 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:23,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 419 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 00:46:23,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2022-02-15 00:46:23,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 639. [2022-02-15 00:46:23,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 634 states have (on average 1.4810725552050472) internal successors, (939), 634 states have internal predecessors, (939), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:23,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 943 transitions. [2022-02-15 00:46:23,730 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 943 transitions. Word has length 112 [2022-02-15 00:46:23,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:23,730 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 943 transitions. [2022-02-15 00:46:23,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:23,730 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 943 transitions. [2022-02-15 00:46:23,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-02-15 00:46:23,732 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:23,732 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:23,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 00:46:23,732 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:23,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:23,733 INFO L85 PathProgramCache]: Analyzing trace with hash -291839553, now seen corresponding path program 1 times [2022-02-15 00:46:23,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:23,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057064983] [2022-02-15 00:46:23,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:23,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:23,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:23,806 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-02-15 00:46:23,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:23,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057064983] [2022-02-15 00:46:23,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057064983] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:23,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:23,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:46:23,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629961479] [2022-02-15 00:46:23,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:23,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:46:23,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:23,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:46:23,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:46:23,807 INFO L87 Difference]: Start difference. First operand 639 states and 943 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:26,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:28,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:29,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:29,054 INFO L93 Difference]: Finished difference Result 641 states and 945 transitions. [2022-02-15 00:46:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:46:29,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-02-15 00:46:29,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:29,056 INFO L225 Difference]: With dead ends: 641 [2022-02-15 00:46:29,057 INFO L226 Difference]: Without dead ends: 641 [2022-02-15 00:46:29,057 INFO L932 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 [2022-02-15 00:46:29,057 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:29,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 398 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 238 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:46:29,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-02-15 00:46:29,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2022-02-15 00:46:29,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 636 states have (on average 1.479559748427673) internal successors, (941), 636 states have internal predecessors, (941), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:29,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 945 transitions. [2022-02-15 00:46:29,080 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 945 transitions. Word has length 112 [2022-02-15 00:46:29,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:29,080 INFO L470 AbstractCegarLoop]: Abstraction has 641 states and 945 transitions. [2022-02-15 00:46:29,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:29,080 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 945 transitions. [2022-02-15 00:46:29,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-15 00:46:29,081 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:29,081 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:29,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 00:46:29,082 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:29,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:29,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1637338007, now seen corresponding path program 1 times [2022-02-15 00:46:29,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:29,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989221837] [2022-02-15 00:46:29,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:29,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:29,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:29,178 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:46:29,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:29,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989221837] [2022-02-15 00:46:29,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989221837] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:29,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:29,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:29,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212355406] [2022-02-15 00:46:29,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:29,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:29,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:29,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:29,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:29,184 INFO L87 Difference]: Start difference. First operand 641 states and 945 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:31,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:33,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:34,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:34,145 INFO L93 Difference]: Finished difference Result 728 states and 1075 transitions. [2022-02-15 00:46:34,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:34,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-15 00:46:34,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:34,148 INFO L225 Difference]: With dead ends: 728 [2022-02-15 00:46:34,148 INFO L226 Difference]: Without dead ends: 728 [2022-02-15 00:46:34,148 INFO L932 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 [2022-02-15 00:46:34,149 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 70 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:34,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 654 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 594 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-15 00:46:34,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-02-15 00:46:34,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 641. [2022-02-15 00:46:34,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 636 states have (on average 1.479559748427673) internal successors, (941), 636 states have internal predecessors, (941), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:34,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 945 transitions. [2022-02-15 00:46:34,155 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 945 transitions. Word has length 131 [2022-02-15 00:46:34,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:34,156 INFO L470 AbstractCegarLoop]: Abstraction has 641 states and 945 transitions. [2022-02-15 00:46:34,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:34,156 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 945 transitions. [2022-02-15 00:46:34,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-15 00:46:34,157 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:34,157 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-02-15 00:46:34,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 00:46:34,157 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:34,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:34,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1649191585, now seen corresponding path program 1 times [2022-02-15 00:46:34,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:34,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364799769] [2022-02-15 00:46:34,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:34,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:34,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:34,286 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:46:34,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:34,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364799769] [2022-02-15 00:46:34,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364799769] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:34,286 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:34,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:34,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414297974] [2022-02-15 00:46:34,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:34,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:34,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:34,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:34,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:34,287 INFO L87 Difference]: Start difference. First operand 641 states and 945 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:35,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:38,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:40,329 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 [] [2022-02-15 00:46:40,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:40,744 INFO L93 Difference]: Finished difference Result 804 states and 1183 transitions. [2022-02-15 00:46:40,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:40,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-02-15 00:46:40,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:40,747 INFO L225 Difference]: With dead ends: 804 [2022-02-15 00:46:40,747 INFO L226 Difference]: Without dead ends: 804 [2022-02-15 00:46:40,747 INFO L932 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 [2022-02-15 00:46:40,747 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 122 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:40,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 374 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-02-15 00:46:40,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2022-02-15 00:46:40,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 643. [2022-02-15 00:46:40,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 638 states have (on average 1.4717868338557993) internal successors, (939), 638 states have internal predecessors, (939), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 943 transitions. [2022-02-15 00:46:40,755 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 943 transitions. Word has length 154 [2022-02-15 00:46:40,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:40,756 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 943 transitions. [2022-02-15 00:46:40,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:40,756 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 943 transitions. [2022-02-15 00:46:40,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-15 00:46:40,757 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:40,757 INFO L514 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, 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] [2022-02-15 00:46:40,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 00:46:40,757 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:40,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:40,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1016371692, now seen corresponding path program 1 times [2022-02-15 00:46:40,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:40,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829826638] [2022-02-15 00:46:40,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:40,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:40,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:40,848 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:46:40,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:40,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829826638] [2022-02-15 00:46:40,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829826638] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:40,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:40,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:40,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940544988] [2022-02-15 00:46:40,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:40,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:40,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:40,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:40,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:40,849 INFO L87 Difference]: Start difference. First operand 643 states and 943 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:42,073 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 [] [2022-02-15 00:46:44,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:46,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:47,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:47,220 INFO L93 Difference]: Finished difference Result 726 states and 1066 transitions. [2022-02-15 00:46:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:47,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-02-15 00:46:47,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:47,222 INFO L225 Difference]: With dead ends: 726 [2022-02-15 00:46:47,222 INFO L226 Difference]: Without dead ends: 726 [2022-02-15 00:46:47,222 INFO L932 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 [2022-02-15 00:46:47,222 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 76 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:47,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 644 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 581 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-02-15 00:46:47,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-02-15 00:46:47,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 671. [2022-02-15 00:46:47,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 666 states have (on average 1.46996996996997) internal successors, (979), 666 states have internal predecessors, (979), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:47,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 983 transitions. [2022-02-15 00:46:47,229 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 983 transitions. Word has length 156 [2022-02-15 00:46:47,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:47,229 INFO L470 AbstractCegarLoop]: Abstraction has 671 states and 983 transitions. [2022-02-15 00:46:47,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:47,230 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 983 transitions. [2022-02-15 00:46:47,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-15 00:46:47,231 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:47,231 INFO L514 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, 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] [2022-02-15 00:46:47,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 00:46:47,231 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:47,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:47,231 INFO L85 PathProgramCache]: Analyzing trace with hash 844647905, now seen corresponding path program 1 times [2022-02-15 00:46:47,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:47,231 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177825414] [2022-02-15 00:46:47,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:47,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:47,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:47,365 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:46:47,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:47,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177825414] [2022-02-15 00:46:47,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177825414] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:47,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:47,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:47,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395359511] [2022-02-15 00:46:47,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:47,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:47,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:47,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:47,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:47,366 INFO L87 Difference]: Start difference. First operand 671 states and 983 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:50,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:51,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:52,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:52,655 INFO L93 Difference]: Finished difference Result 832 states and 1217 transitions. [2022-02-15 00:46:52,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:52,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-02-15 00:46:52,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:52,657 INFO L225 Difference]: With dead ends: 832 [2022-02-15 00:46:52,657 INFO L226 Difference]: Without dead ends: 832 [2022-02-15 00:46:52,657 INFO L932 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 [2022-02-15 00:46:52,658 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 117 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:52,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 374 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-15 00:46:52,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-02-15 00:46:52,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 679. [2022-02-15 00:46:52,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 674 states have (on average 1.467359050445104) internal successors, (989), 674 states have internal predecessors, (989), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 993 transitions. [2022-02-15 00:46:52,681 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 993 transitions. Word has length 157 [2022-02-15 00:46:52,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:52,681 INFO L470 AbstractCegarLoop]: Abstraction has 679 states and 993 transitions. [2022-02-15 00:46:52,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:52,681 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 993 transitions. [2022-02-15 00:46:52,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-15 00:46:52,682 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:52,682 INFO L514 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, 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] [2022-02-15 00:46:52,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 00:46:52,682 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:52,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:52,683 INFO L85 PathProgramCache]: Analyzing trace with hash 738183639, now seen corresponding path program 1 times [2022-02-15 00:46:52,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:52,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411104583] [2022-02-15 00:46:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:52,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:52,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:46:52,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:52,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411104583] [2022-02-15 00:46:52,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411104583] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:52,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:52,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:52,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265415807] [2022-02-15 00:46:52,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:52,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:52,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:52,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:52,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:52,787 INFO L87 Difference]: Start difference. First operand 679 states and 993 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:54,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:57,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:57,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:57,615 INFO L93 Difference]: Finished difference Result 726 states and 1061 transitions. [2022-02-15 00:46:57,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:57,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-02-15 00:46:57,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:57,618 INFO L225 Difference]: With dead ends: 726 [2022-02-15 00:46:57,618 INFO L226 Difference]: Without dead ends: 726 [2022-02-15 00:46:57,618 INFO L932 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 [2022-02-15 00:46:57,619 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 63 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:57,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 632 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-02-15 00:46:57,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-02-15 00:46:57,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 681. [2022-02-15 00:46:57,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 676 states have (on average 1.4659763313609468) internal successors, (991), 676 states have internal predecessors, (991), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:57,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 995 transitions. [2022-02-15 00:46:57,625 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 995 transitions. Word has length 158 [2022-02-15 00:46:57,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:57,625 INFO L470 AbstractCegarLoop]: Abstraction has 681 states and 995 transitions. [2022-02-15 00:46:57,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:57,626 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 995 transitions. [2022-02-15 00:46:57,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-02-15 00:46:57,627 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:57,627 INFO L514 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:57,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 00:46:57,627 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:57,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:57,627 INFO L85 PathProgramCache]: Analyzing trace with hash -276622805, now seen corresponding path program 1 times [2022-02-15 00:46:57,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:57,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106892219] [2022-02-15 00:46:57,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:57,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:57,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:57,758 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:46:57,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:57,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106892219] [2022-02-15 00:46:57,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106892219] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:57,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:57,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:57,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306438652] [2022-02-15 00:46:57,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:57,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:57,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:57,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:57,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:57,759 INFO L87 Difference]: Start difference. First operand 681 states and 995 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:00,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:02,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:03,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:03,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:03,550 INFO L93 Difference]: Finished difference Result 726 states and 1060 transitions. [2022-02-15 00:47:03,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:03,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-02-15 00:47:03,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:03,552 INFO L225 Difference]: With dead ends: 726 [2022-02-15 00:47:03,552 INFO L226 Difference]: Without dead ends: 726 [2022-02-15 00:47:03,552 INFO L932 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 [2022-02-15 00:47:03,553 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 66 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:03,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 630 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 543 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-02-15 00:47:03,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-02-15 00:47:03,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 681. [2022-02-15 00:47:03,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 676 states have (on average 1.4644970414201184) internal successors, (990), 676 states have internal predecessors, (990), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:03,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 994 transitions. [2022-02-15 00:47:03,559 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 994 transitions. Word has length 159 [2022-02-15 00:47:03,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:03,559 INFO L470 AbstractCegarLoop]: Abstraction has 681 states and 994 transitions. [2022-02-15 00:47:03,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:03,559 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 994 transitions. [2022-02-15 00:47:03,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-02-15 00:47:03,560 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:03,560 INFO L514 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, 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] [2022-02-15 00:47:03,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 00:47:03,561 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:03,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:03,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2067546830, now seen corresponding path program 1 times [2022-02-15 00:47:03,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:03,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669716583] [2022-02-15 00:47:03,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:03,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:03,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:03,659 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:47:03,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:03,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669716583] [2022-02-15 00:47:03,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669716583] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:03,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:03,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:03,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022521541] [2022-02-15 00:47:03,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:03,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:03,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:03,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:03,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:03,660 INFO L87 Difference]: Start difference. First operand 681 states and 994 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:06,083 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 [] [2022-02-15 00:47:08,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:09,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:09,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:09,631 INFO L93 Difference]: Finished difference Result 724 states and 1057 transitions. [2022-02-15 00:47:09,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:09,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-02-15 00:47:09,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:09,633 INFO L225 Difference]: With dead ends: 724 [2022-02-15 00:47:09,633 INFO L226 Difference]: Without dead ends: 724 [2022-02-15 00:47:09,633 INFO L932 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 [2022-02-15 00:47:09,633 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 59 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:09,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 626 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 537 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 00:47:09,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2022-02-15 00:47:09,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 682. [2022-02-15 00:47:09,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 677 states have (on average 1.463810930576071) internal successors, (991), 677 states have internal predecessors, (991), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:09,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 995 transitions. [2022-02-15 00:47:09,640 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 995 transitions. Word has length 159 [2022-02-15 00:47:09,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:09,640 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 995 transitions. [2022-02-15 00:47:09,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:09,641 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 995 transitions. [2022-02-15 00:47:09,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-02-15 00:47:09,642 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:09,642 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:09,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 00:47:09,642 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:09,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:09,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1209469214, now seen corresponding path program 1 times [2022-02-15 00:47:09,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:09,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402733558] [2022-02-15 00:47:09,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:09,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:09,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:09,776 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:47:09,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:09,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402733558] [2022-02-15 00:47:09,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402733558] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:09,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:09,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:09,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301384039] [2022-02-15 00:47:09,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:09,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:09,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:09,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:09,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:09,777 INFO L87 Difference]: Start difference. First operand 682 states and 995 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:11,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:13,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:14,606 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 [] [2022-02-15 00:47:15,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:15,042 INFO L93 Difference]: Finished difference Result 965 states and 1411 transitions. [2022-02-15 00:47:15,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:15,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-02-15 00:47:15,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:15,045 INFO L225 Difference]: With dead ends: 965 [2022-02-15 00:47:15,045 INFO L226 Difference]: Without dead ends: 965 [2022-02-15 00:47:15,045 INFO L932 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 [2022-02-15 00:47:15,046 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 112 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:15,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 384 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:47:15,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2022-02-15 00:47:15,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 810. [2022-02-15 00:47:15,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 805 states have (on average 1.462111801242236) internal successors, (1177), 805 states have internal predecessors, (1177), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:15,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1181 transitions. [2022-02-15 00:47:15,071 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1181 transitions. Word has length 159 [2022-02-15 00:47:15,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:15,071 INFO L470 AbstractCegarLoop]: Abstraction has 810 states and 1181 transitions. [2022-02-15 00:47:15,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:15,072 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1181 transitions. [2022-02-15 00:47:15,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-02-15 00:47:15,073 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:15,073 INFO L514 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:15,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 00:47:15,073 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:15,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:15,073 INFO L85 PathProgramCache]: Analyzing trace with hash 350686870, now seen corresponding path program 1 times [2022-02-15 00:47:15,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:15,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383516471] [2022-02-15 00:47:15,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:15,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:15,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:15,174 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:47:15,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:15,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383516471] [2022-02-15 00:47:15,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383516471] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:15,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:15,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:15,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878103955] [2022-02-15 00:47:15,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:15,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:15,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:15,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:15,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:15,176 INFO L87 Difference]: Start difference. First operand 810 states and 1181 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:16,249 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 [] [2022-02-15 00:47:17,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:19,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:20,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:20,187 INFO L93 Difference]: Finished difference Result 963 states and 1394 transitions. [2022-02-15 00:47:20,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:20,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-02-15 00:47:20,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:20,189 INFO L225 Difference]: With dead ends: 963 [2022-02-15 00:47:20,189 INFO L226 Difference]: Without dead ends: 963 [2022-02-15 00:47:20,190 INFO L932 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 [2022-02-15 00:47:20,190 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 118 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:20,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 372 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-02-15 00:47:20,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-02-15 00:47:20,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 810. [2022-02-15 00:47:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 805 states have (on average 1.448447204968944) internal successors, (1166), 805 states have internal predecessors, (1166), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1170 transitions. [2022-02-15 00:47:20,198 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1170 transitions. Word has length 160 [2022-02-15 00:47:20,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:20,198 INFO L470 AbstractCegarLoop]: Abstraction has 810 states and 1170 transitions. [2022-02-15 00:47:20,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:20,198 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1170 transitions. [2022-02-15 00:47:20,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-02-15 00:47:20,200 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:20,200 INFO L514 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:20,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 00:47:20,200 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:20,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:20,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1895720281, now seen corresponding path program 1 times [2022-02-15 00:47:20,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:20,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334533112] [2022-02-15 00:47:20,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:20,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:20,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:20,322 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:47:20,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:20,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334533112] [2022-02-15 00:47:20,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334533112] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:20,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:20,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:20,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618684746] [2022-02-15 00:47:20,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:20,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:20,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:20,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:20,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:20,323 INFO L87 Difference]: Start difference. First operand 810 states and 1170 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:22,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:24,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:26,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:26,082 INFO L93 Difference]: Finished difference Result 1041 states and 1508 transitions. [2022-02-15 00:47:26,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:26,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-02-15 00:47:26,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:26,085 INFO L225 Difference]: With dead ends: 1041 [2022-02-15 00:47:26,085 INFO L226 Difference]: Without dead ends: 1041 [2022-02-15 00:47:26,085 INFO L932 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 [2022-02-15 00:47:26,085 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 111 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:26,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 372 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-15 00:47:26,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2022-02-15 00:47:26,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 884. [2022-02-15 00:47:26,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 879 states have (on average 1.4493742889647327) internal successors, (1274), 879 states have internal predecessors, (1274), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:26,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1278 transitions. [2022-02-15 00:47:26,100 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1278 transitions. Word has length 162 [2022-02-15 00:47:26,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:26,100 INFO L470 AbstractCegarLoop]: Abstraction has 884 states and 1278 transitions. [2022-02-15 00:47:26,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:26,101 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1278 transitions. [2022-02-15 00:47:26,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-02-15 00:47:26,102 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:26,102 INFO L514 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:26,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 00:47:26,102 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:26,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:26,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1355625361, now seen corresponding path program 1 times [2022-02-15 00:47:26,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:26,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979584869] [2022-02-15 00:47:26,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:26,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:26,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:26,226 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:47:26,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:26,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979584869] [2022-02-15 00:47:26,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979584869] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:26,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:26,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:26,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731255051] [2022-02-15 00:47:26,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:26,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:26,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:26,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:26,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:26,228 INFO L87 Difference]: Start difference. First operand 884 states and 1278 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:28,236 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 [] [2022-02-15 00:47:28,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:28,685 INFO L93 Difference]: Finished difference Result 1029 states and 1480 transitions. [2022-02-15 00:47:28,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:28,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-02-15 00:47:28,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:28,688 INFO L225 Difference]: With dead ends: 1029 [2022-02-15 00:47:28,688 INFO L226 Difference]: Without dead ends: 1029 [2022-02-15 00:47:28,688 INFO L932 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 [2022-02-15 00:47:28,688 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 110 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:28,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 372 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:47:28,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-02-15 00:47:28,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 886. [2022-02-15 00:47:28,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 881 states have (on average 1.4438138479001135) internal successors, (1272), 881 states have internal predecessors, (1272), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:28,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1276 transitions. [2022-02-15 00:47:28,710 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1276 transitions. Word has length 163 [2022-02-15 00:47:28,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:28,710 INFO L470 AbstractCegarLoop]: Abstraction has 886 states and 1276 transitions. [2022-02-15 00:47:28,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:28,711 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1276 transitions. [2022-02-15 00:47:28,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-02-15 00:47:28,712 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:28,712 INFO L514 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:28,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 00:47:28,712 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:28,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:28,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1144238694, now seen corresponding path program 1 times [2022-02-15 00:47:28,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:28,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765426829] [2022-02-15 00:47:28,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:28,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:28,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:28,856 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:47:28,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:28,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765426829] [2022-02-15 00:47:28,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765426829] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:28,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:28,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:28,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762968280] [2022-02-15 00:47:28,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:28,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:28,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:28,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:28,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:28,857 INFO L87 Difference]: Start difference. First operand 886 states and 1276 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:31,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:33,097 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 [] [2022-02-15 00:47:34,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:34,178 INFO L93 Difference]: Finished difference Result 1107 states and 1588 transitions. [2022-02-15 00:47:34,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:34,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-02-15 00:47:34,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:34,181 INFO L225 Difference]: With dead ends: 1107 [2022-02-15 00:47:34,181 INFO L226 Difference]: Without dead ends: 1107 [2022-02-15 00:47:34,181 INFO L932 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 [2022-02-15 00:47:34,182 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 108 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:34,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 372 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-15 00:47:34,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2022-02-15 00:47:34,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 958. [2022-02-15 00:47:34,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 953 states have (on average 1.4375655823714586) internal successors, (1370), 953 states have internal predecessors, (1370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:34,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1374 transitions. [2022-02-15 00:47:34,190 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1374 transitions. Word has length 163 [2022-02-15 00:47:34,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:34,190 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 1374 transitions. [2022-02-15 00:47:34,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:34,190 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1374 transitions. [2022-02-15 00:47:34,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-15 00:47:34,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:34,192 INFO L514 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:34,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 00:47:34,192 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:34,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:34,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1885264849, now seen corresponding path program 1 times [2022-02-15 00:47:34,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:34,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229511301] [2022-02-15 00:47:34,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:34,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:34,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:34,285 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:47:34,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:34,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229511301] [2022-02-15 00:47:34,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229511301] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:34,286 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:34,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:34,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279463829] [2022-02-15 00:47:34,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:34,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:34,286 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:34,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:34,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:34,287 INFO L87 Difference]: Start difference. First operand 958 states and 1374 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:35,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:37,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:39,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:41,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:41,177 INFO L93 Difference]: Finished difference Result 989 states and 1417 transitions. [2022-02-15 00:47:41,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:41,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-02-15 00:47:41,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:41,180 INFO L225 Difference]: With dead ends: 989 [2022-02-15 00:47:41,180 INFO L226 Difference]: Without dead ends: 989 [2022-02-15 00:47:41,180 INFO L932 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 [2022-02-15 00:47:41,180 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 42 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:41,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 604 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-15 00:47:41,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2022-02-15 00:47:41,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 963. [2022-02-15 00:47:41,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 958 states have (on average 1.4352818371607516) internal successors, (1375), 958 states have internal predecessors, (1375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:41,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1379 transitions. [2022-02-15 00:47:41,205 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1379 transitions. Word has length 164 [2022-02-15 00:47:41,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:41,205 INFO L470 AbstractCegarLoop]: Abstraction has 963 states and 1379 transitions. [2022-02-15 00:47:41,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1379 transitions. [2022-02-15 00:47:41,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-15 00:47:41,206 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:41,206 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:41,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 00:47:41,206 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:41,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:41,207 INFO L85 PathProgramCache]: Analyzing trace with hash -903534559, now seen corresponding path program 1 times [2022-02-15 00:47:41,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:41,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863960292] [2022-02-15 00:47:41,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:41,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:41,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:41,318 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:47:41,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:41,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863960292] [2022-02-15 00:47:41,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863960292] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:41,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:41,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:41,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380237330] [2022-02-15 00:47:41,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:41,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:41,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:41,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:41,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:41,319 INFO L87 Difference]: Start difference. First operand 963 states and 1379 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:43,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:45,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:47,196 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 [] [2022-02-15 00:47:47,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:47,573 INFO L93 Difference]: Finished difference Result 989 states and 1416 transitions. [2022-02-15 00:47:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:47,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-02-15 00:47:47,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:47,575 INFO L225 Difference]: With dead ends: 989 [2022-02-15 00:47:47,575 INFO L226 Difference]: Without dead ends: 989 [2022-02-15 00:47:47,575 INFO L932 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 [2022-02-15 00:47:47,576 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 40 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:47,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 602 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 492 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 00:47:47,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2022-02-15 00:47:47,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 964. [2022-02-15 00:47:47,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 959 states have (on average 1.434827945776851) internal successors, (1376), 959 states have internal predecessors, (1376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:47,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1380 transitions. [2022-02-15 00:47:47,584 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1380 transitions. Word has length 164 [2022-02-15 00:47:47,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:47,584 INFO L470 AbstractCegarLoop]: Abstraction has 964 states and 1380 transitions. [2022-02-15 00:47:47,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:47,584 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1380 transitions. [2022-02-15 00:47:47,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-02-15 00:47:47,585 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:47,585 INFO L514 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] [2022-02-15 00:47:47,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 00:47:47,586 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:47,586 INFO L85 PathProgramCache]: Analyzing trace with hash -425501681, now seen corresponding path program 1 times [2022-02-15 00:47:47,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:47,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978333268] [2022-02-15 00:47:47,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:47,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:47,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:47,679 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:47:47,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:47,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978333268] [2022-02-15 00:47:47,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978333268] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:47,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:47,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:47,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525219175] [2022-02-15 00:47:47,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:47,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:47,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:47,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:47,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:47,680 INFO L87 Difference]: Start difference. First operand 964 states and 1380 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:49,166 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 [] [2022-02-15 00:47:51,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:53,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:53,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:53,807 INFO L93 Difference]: Finished difference Result 987 states and 1413 transitions. [2022-02-15 00:47:53,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:53,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-02-15 00:47:53,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:53,810 INFO L225 Difference]: With dead ends: 987 [2022-02-15 00:47:53,810 INFO L226 Difference]: Without dead ends: 987 [2022-02-15 00:47:53,810 INFO L932 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 [2022-02-15 00:47:53,810 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 37 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:53,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 598 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 00:47:53,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2022-02-15 00:47:53,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 965. [2022-02-15 00:47:53,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 960 states have (on average 1.434375) internal successors, (1377), 960 states have internal predecessors, (1377), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:53,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1381 transitions. [2022-02-15 00:47:53,818 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1381 transitions. Word has length 165 [2022-02-15 00:47:53,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:53,818 INFO L470 AbstractCegarLoop]: Abstraction has 965 states and 1381 transitions. [2022-02-15 00:47:53,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:53,818 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1381 transitions. [2022-02-15 00:47:53,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-15 00:47:53,819 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:53,819 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:53,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 00:47:53,819 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:53,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:53,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1040554030, now seen corresponding path program 1 times [2022-02-15 00:47:53,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:53,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23025204] [2022-02-15 00:47:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:53,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:53,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:53,932 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-02-15 00:47:53,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:53,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23025204] [2022-02-15 00:47:53,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23025204] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:53,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:53,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:47:53,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396218105] [2022-02-15 00:47:53,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:53,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:47:53,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:53,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:47:53,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:47:53,934 INFO L87 Difference]: Start difference. First operand 965 states and 1381 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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) [2022-02-15 00:47:55,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:57,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:59,264 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 [] [2022-02-15 00:47:59,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:59,683 INFO L93 Difference]: Finished difference Result 1434 states and 2051 transitions. [2022-02-15 00:47:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:47:59,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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 173 [2022-02-15 00:47:59,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:59,687 INFO L225 Difference]: With dead ends: 1434 [2022-02-15 00:47:59,687 INFO L226 Difference]: Without dead ends: 1434 [2022-02-15 00:47:59,687 INFO L932 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 [2022-02-15 00:47:59,688 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:59,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 578 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 426 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-15 00:47:59,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2022-02-15 00:47:59,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1434. [2022-02-15 00:47:59,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1434 states, 1429 states have (on average 1.4324702589223233) internal successors, (2047), 1429 states have internal predecessors, (2047), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:59,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 2051 transitions. [2022-02-15 00:47:59,700 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 2051 transitions. Word has length 173 [2022-02-15 00:47:59,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:59,700 INFO L470 AbstractCegarLoop]: Abstraction has 1434 states and 2051 transitions. [2022-02-15 00:47:59,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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) [2022-02-15 00:47:59,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 2051 transitions. [2022-02-15 00:47:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-15 00:47:59,707 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:59,707 INFO L514 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] [2022-02-15 00:47:59,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 00:47:59,707 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:59,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:59,708 INFO L85 PathProgramCache]: Analyzing trace with hash -865236792, now seen corresponding path program 1 times [2022-02-15 00:47:59,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:59,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556806966] [2022-02-15 00:47:59,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:59,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:59,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:59,859 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:47:59,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:59,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556806966] [2022-02-15 00:47:59,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556806966] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:59,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:59,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:47:59,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315118087] [2022-02-15 00:47:59,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:59,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:47:59,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:59,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:47:59,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:47:59,861 INFO L87 Difference]: Start difference. First operand 1434 states and 2051 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:02,316 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 [] [2022-02-15 00:48:03,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:03,257 INFO L93 Difference]: Finished difference Result 1871 states and 2674 transitions. [2022-02-15 00:48:03,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:48:03,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-02-15 00:48:03,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:03,262 INFO L225 Difference]: With dead ends: 1871 [2022-02-15 00:48:03,262 INFO L226 Difference]: Without dead ends: 1871 [2022-02-15 00:48:03,262 INFO L932 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 [2022-02-15 00:48:03,262 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:03,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 573 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-02-15 00:48:03,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2022-02-15 00:48:03,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1871. [2022-02-15 00:48:03,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1871 states, 1866 states have (on average 1.4308681672025723) internal successors, (2670), 1866 states have internal predecessors, (2670), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:03,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 2674 transitions. [2022-02-15 00:48:03,282 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 2674 transitions. Word has length 174 [2022-02-15 00:48:03,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:03,282 INFO L470 AbstractCegarLoop]: Abstraction has 1871 states and 2674 transitions. [2022-02-15 00:48:03,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:03,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 2674 transitions. [2022-02-15 00:48:03,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-15 00:48:03,284 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:03,284 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:03,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 00:48:03,285 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:03,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:03,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1546774342, now seen corresponding path program 1 times [2022-02-15 00:48:03,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:03,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896654482] [2022-02-15 00:48:03,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:03,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:03,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:03,409 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-02-15 00:48:03,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:03,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896654482] [2022-02-15 00:48:03,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896654482] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:03,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:03,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:48:03,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175137693] [2022-02-15 00:48:03,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:03,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:48:03,411 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:03,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:48:03,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:48:03,412 INFO L87 Difference]: Start difference. First operand 1871 states and 2674 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:04,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:06,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:07,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:07,535 INFO L93 Difference]: Finished difference Result 2346 states and 3357 transitions. [2022-02-15 00:48:07,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:48:07,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-02-15 00:48:07,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:07,564 INFO L225 Difference]: With dead ends: 2346 [2022-02-15 00:48:07,564 INFO L226 Difference]: Without dead ends: 2346 [2022-02-15 00:48:07,564 INFO L932 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 [2022-02-15 00:48:07,565 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:07,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 382 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-15 00:48:07,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2022-02-15 00:48:07,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2346. [2022-02-15 00:48:07,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2346 states, 2341 states have (on average 1.4322938914993593) internal successors, (3353), 2341 states have internal predecessors, (3353), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2346 states to 2346 states and 3357 transitions. [2022-02-15 00:48:07,609 INFO L78 Accepts]: Start accepts. Automaton has 2346 states and 3357 transitions. Word has length 213 [2022-02-15 00:48:07,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:07,612 INFO L470 AbstractCegarLoop]: Abstraction has 2346 states and 3357 transitions. [2022-02-15 00:48:07,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:07,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2346 states and 3357 transitions. [2022-02-15 00:48:07,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-02-15 00:48:07,620 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:07,620 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:07,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 00:48:07,621 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:07,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:07,621 INFO L85 PathProgramCache]: Analyzing trace with hash 503424760, now seen corresponding path program 1 times [2022-02-15 00:48:07,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:07,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963306049] [2022-02-15 00:48:07,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:07,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:07,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:07,880 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 474 proven. 106 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-02-15 00:48:07,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:07,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963306049] [2022-02-15 00:48:07,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963306049] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:48:07,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715536150] [2022-02-15 00:48:07,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:07,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:48:07,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:48:07,883 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) [2022-02-15 00:48:07,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-15 00:48:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:08,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 1575 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-15 00:48:08,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:48:09,008 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2022-02-15 00:48:09,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-15 00:48:09,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715536150] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:09,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-15 00:48:09,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-02-15 00:48:09,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010442106] [2022-02-15 00:48:09,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:09,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 00:48:09,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:09,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 00:48:09,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:48:09,010 INFO L87 Difference]: Start difference. First operand 2346 states and 3357 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:09,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:09,046 INFO L93 Difference]: Finished difference Result 2821 states and 4042 transitions. [2022-02-15 00:48:09,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 00:48:09,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 298 [2022-02-15 00:48:09,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:09,051 INFO L225 Difference]: With dead ends: 2821 [2022-02-15 00:48:09,051 INFO L226 Difference]: Without dead ends: 2821 [2022-02-15 00:48:09,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:48:09,051 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 155 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:09,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 383 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 00:48:09,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2022-02-15 00:48:09,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2821. [2022-02-15 00:48:09,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 2816 states have (on average 1.4339488636363635) internal successors, (4038), 2816 states have internal predecessors, (4038), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 4042 transitions. [2022-02-15 00:48:09,103 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 4042 transitions. Word has length 298 [2022-02-15 00:48:09,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:09,104 INFO L470 AbstractCegarLoop]: Abstraction has 2821 states and 4042 transitions. [2022-02-15 00:48:09,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:09,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 4042 transitions. [2022-02-15 00:48:09,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-02-15 00:48:09,108 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:09,108 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 4, 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] [2022-02-15 00:48:09,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-15 00:48:09,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-02-15 00:48:09,326 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:09,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:09,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1878127801, now seen corresponding path program 1 times [2022-02-15 00:48:09,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:09,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264845449] [2022-02-15 00:48:09,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:09,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:09,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:09,485 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 646 proven. 106 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-02-15 00:48:09,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:09,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264845449] [2022-02-15 00:48:09,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264845449] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:48:09,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547109463] [2022-02-15 00:48:09,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:09,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:48:09,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:48:09,500 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:48:09,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-15 00:48:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:10,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1715 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-15 00:48:10,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:48:10,697 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2022-02-15 00:48:10,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-15 00:48:10,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547109463] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:10,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-15 00:48:10,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-02-15 00:48:10,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785910996] [2022-02-15 00:48:10,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:10,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 00:48:10,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:10,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 00:48:10,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:48:10,698 INFO L87 Difference]: Start difference. First operand 2821 states and 4042 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:10,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:10,734 INFO L93 Difference]: Finished difference Result 3296 states and 4728 transitions. [2022-02-15 00:48:10,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 00:48:10,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 339 [2022-02-15 00:48:10,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:10,739 INFO L225 Difference]: With dead ends: 3296 [2022-02-15 00:48:10,739 INFO L226 Difference]: Without dead ends: 3296 [2022-02-15 00:48:10,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:48:10,739 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:10,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 382 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 00:48:10,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2022-02-15 00:48:10,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 3296. [2022-02-15 00:48:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3296 states, 3291 states have (on average 1.4354299604983287) internal successors, (4724), 3291 states have internal predecessors, (4724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:10,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3296 states to 3296 states and 4728 transitions. [2022-02-15 00:48:10,793 INFO L78 Accepts]: Start accepts. Automaton has 3296 states and 4728 transitions. Word has length 339 [2022-02-15 00:48:10,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:10,793 INFO L470 AbstractCegarLoop]: Abstraction has 3296 states and 4728 transitions. [2022-02-15 00:48:10,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:10,793 INFO L276 IsEmpty]: Start isEmpty. Operand 3296 states and 4728 transitions. [2022-02-15 00:48:10,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-15 00:48:10,800 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:10,800 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 5, 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] [2022-02-15 00:48:10,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-15 00:48:11,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-02-15 00:48:11,016 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:11,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:11,016 INFO L85 PathProgramCache]: Analyzing trace with hash -2006391291, now seen corresponding path program 1 times [2022-02-15 00:48:11,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:11,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513209753] [2022-02-15 00:48:11,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:11,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:11,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:11,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1611 backedges. 1026 proven. 106 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2022-02-15 00:48:11,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:11,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513209753] [2022-02-15 00:48:11,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513209753] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:48:11,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554620552] [2022-02-15 00:48:11,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:11,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:48:11,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:48:11,182 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:48:11,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-15 00:48:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:12,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 2041 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-15 00:48:12,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:48:12,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1611 backedges. 593 proven. 0 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2022-02-15 00:48:12,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-15 00:48:12,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554620552] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:12,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-15 00:48:12,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-02-15 00:48:12,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358803557] [2022-02-15 00:48:12,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:12,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 00:48:12,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:12,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 00:48:12,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:48:12,455 INFO L87 Difference]: Start difference. First operand 3296 states and 4728 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:12,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:12,491 INFO L93 Difference]: Finished difference Result 3771 states and 5415 transitions. [2022-02-15 00:48:12,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 00:48:12,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-02-15 00:48:12,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:12,497 INFO L225 Difference]: With dead ends: 3771 [2022-02-15 00:48:12,497 INFO L226 Difference]: Without dead ends: 3771 [2022-02-15 00:48:12,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:48:12,497 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 145 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:12,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 381 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 00:48:12,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3771 states. [2022-02-15 00:48:12,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3771 to 3771. [2022-02-15 00:48:12,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3771 states, 3766 states have (on average 1.436802973977695) internal successors, (5411), 3766 states have internal predecessors, (5411), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:12,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3771 states to 3771 states and 5415 transitions. [2022-02-15 00:48:12,529 INFO L78 Accepts]: Start accepts. Automaton has 3771 states and 5415 transitions. Word has length 426 [2022-02-15 00:48:12,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:12,529 INFO L470 AbstractCegarLoop]: Abstraction has 3771 states and 5415 transitions. [2022-02-15 00:48:12,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:12,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3771 states and 5415 transitions. [2022-02-15 00:48:12,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-15 00:48:12,534 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:12,535 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:12,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-15 00:48:12,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:48:12,756 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:12,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:12,756 INFO L85 PathProgramCache]: Analyzing trace with hash -676105557, now seen corresponding path program 1 times [2022-02-15 00:48:12,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:12,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313481866] [2022-02-15 00:48:12,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:12,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:12,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:12,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 1003 proven. 0 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2022-02-15 00:48:12,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:12,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313481866] [2022-02-15 00:48:12,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313481866] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:12,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:12,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:12,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201788146] [2022-02-15 00:48:12,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:12,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:12,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:12,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:12,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:12,944 INFO L87 Difference]: Start difference. First operand 3771 states and 5415 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:14,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:16,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:18,362 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 [] [2022-02-15 00:48:19,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:19,765 INFO L93 Difference]: Finished difference Result 4399 states and 6296 transitions. [2022-02-15 00:48:19,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:19,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-02-15 00:48:19,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:19,771 INFO L225 Difference]: With dead ends: 4399 [2022-02-15 00:48:19,771 INFO L226 Difference]: Without dead ends: 4399 [2022-02-15 00:48:19,772 INFO L932 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 [2022-02-15 00:48:19,772 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 63 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:19,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 647 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 576 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-02-15 00:48:19,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4399 states. [2022-02-15 00:48:19,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4399 to 4099. [2022-02-15 00:48:19,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4099 states, 4094 states have (on average 1.436980947728383) internal successors, (5883), 4094 states have internal predecessors, (5883), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:19,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4099 states to 4099 states and 5887 transitions. [2022-02-15 00:48:19,809 INFO L78 Accepts]: Start accepts. Automaton has 4099 states and 5887 transitions. Word has length 426 [2022-02-15 00:48:19,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:19,809 INFO L470 AbstractCegarLoop]: Abstraction has 4099 states and 5887 transitions. [2022-02-15 00:48:19,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:19,809 INFO L276 IsEmpty]: Start isEmpty. Operand 4099 states and 5887 transitions. [2022-02-15 00:48:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-15 00:48:19,814 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:19,814 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:19,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-15 00:48:19,815 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:19,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:19,815 INFO L85 PathProgramCache]: Analyzing trace with hash 909790957, now seen corresponding path program 1 times [2022-02-15 00:48:19,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:19,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805585110] [2022-02-15 00:48:19,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:19,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:20,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 922 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2022-02-15 00:48:20,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:20,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805585110] [2022-02-15 00:48:20,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805585110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:20,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:20,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 00:48:20,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179830849] [2022-02-15 00:48:20,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:20,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 00:48:20,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:20,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 00:48:20,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:48:20,162 INFO L87 Difference]: Start difference. First operand 4099 states and 5887 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:22,171 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 [] [2022-02-15 00:48:23,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:23,370 INFO L93 Difference]: Finished difference Result 7888 states and 11397 transitions. [2022-02-15 00:48:23,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 00:48:23,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-02-15 00:48:23,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:23,381 INFO L225 Difference]: With dead ends: 7888 [2022-02-15 00:48:23,381 INFO L226 Difference]: Without dead ends: 7888 [2022-02-15 00:48:23,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-02-15 00:48:23,383 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 193 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:23,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 1292 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1399 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-02-15 00:48:23,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7888 states. [2022-02-15 00:48:23,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7888 to 7613. [2022-02-15 00:48:23,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7613 states, 7608 states have (on average 1.4486067297581493) internal successors, (11021), 7608 states have internal predecessors, (11021), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:23,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7613 states to 7613 states and 11025 transitions. [2022-02-15 00:48:23,455 INFO L78 Accepts]: Start accepts. Automaton has 7613 states and 11025 transitions. Word has length 426 [2022-02-15 00:48:23,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:23,456 INFO L470 AbstractCegarLoop]: Abstraction has 7613 states and 11025 transitions. [2022-02-15 00:48:23,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:23,456 INFO L276 IsEmpty]: Start isEmpty. Operand 7613 states and 11025 transitions. [2022-02-15 00:48:23,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-02-15 00:48:23,465 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:23,465 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:23,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-15 00:48:23,465 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:23,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:23,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1325709964, now seen corresponding path program 1 times [2022-02-15 00:48:23,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:23,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38927849] [2022-02-15 00:48:23,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:23,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:23,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:23,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 1008 proven. 40 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2022-02-15 00:48:23,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:23,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38927849] [2022-02-15 00:48:23,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38927849] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:48:23,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687640193] [2022-02-15 00:48:23,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:23,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:48:23,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:48:23,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:48:23,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-15 00:48:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:24,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 2046 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-15 00:48:24,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:48:25,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 1119 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2022-02-15 00:48:25,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-15 00:48:25,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687640193] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:25,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-15 00:48:25,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-02-15 00:48:25,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868880411] [2022-02-15 00:48:25,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:25,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 00:48:25,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:25,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 00:48:25,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:48:25,202 INFO L87 Difference]: Start difference. First operand 7613 states and 11025 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:25,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:25,244 INFO L93 Difference]: Finished difference Result 8570 states and 12414 transitions. [2022-02-15 00:48:25,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 00:48:25,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-02-15 00:48:25,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:25,255 INFO L225 Difference]: With dead ends: 8570 [2022-02-15 00:48:25,256 INFO L226 Difference]: Without dead ends: 8570 [2022-02-15 00:48:25,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:48:25,256 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 146 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:25,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 384 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 00:48:25,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8570 states. [2022-02-15 00:48:25,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8570 to 8570. [2022-02-15 00:48:25,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8570 states, 8565 states have (on average 1.4489200233508466) internal successors, (12410), 8565 states have internal predecessors, (12410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:25,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8570 states to 8570 states and 12414 transitions. [2022-02-15 00:48:25,353 INFO L78 Accepts]: Start accepts. Automaton has 8570 states and 12414 transitions. Word has length 428 [2022-02-15 00:48:25,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:25,354 INFO L470 AbstractCegarLoop]: Abstraction has 8570 states and 12414 transitions. [2022-02-15 00:48:25,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:25,354 INFO L276 IsEmpty]: Start isEmpty. Operand 8570 states and 12414 transitions. [2022-02-15 00:48:25,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-02-15 00:48:25,364 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:25,364 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:25,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-15 00:48:25,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-02-15 00:48:25,587 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:25,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:25,587 INFO L85 PathProgramCache]: Analyzing trace with hash 972462257, now seen corresponding path program 1 times [2022-02-15 00:48:25,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:25,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520352094] [2022-02-15 00:48:25,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:25,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:25,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:25,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1572 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2022-02-15 00:48:25,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:25,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520352094] [2022-02-15 00:48:25,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520352094] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:25,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:25,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:25,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006834772] [2022-02-15 00:48:25,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:25,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:25,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:25,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:25,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:25,741 INFO L87 Difference]: Start difference. First operand 8570 states and 12414 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:27,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:29,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:30,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:30,995 INFO L93 Difference]: Finished difference Result 9226 states and 13293 transitions. [2022-02-15 00:48:30,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:30,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-02-15 00:48:30,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:31,006 INFO L225 Difference]: With dead ends: 9226 [2022-02-15 00:48:31,006 INFO L226 Difference]: Without dead ends: 9226 [2022-02-15 00:48:31,006 INFO L932 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 [2022-02-15 00:48:31,007 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 61 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:31,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 645 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 572 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:48:31,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9226 states. [2022-02-15 00:48:31,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9226 to 8588. [2022-02-15 00:48:31,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8588 states, 8583 states have (on average 1.4479785622742631) internal successors, (12428), 8583 states have internal predecessors, (12428), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:31,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 12432 transitions. [2022-02-15 00:48:31,088 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 12432 transitions. Word has length 428 [2022-02-15 00:48:31,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:31,088 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 12432 transitions. [2022-02-15 00:48:31,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:31,088 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 12432 transitions. [2022-02-15 00:48:31,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-02-15 00:48:31,099 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:31,099 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:31,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-15 00:48:31,099 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:31,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:31,100 INFO L85 PathProgramCache]: Analyzing trace with hash -2108230989, now seen corresponding path program 1 times [2022-02-15 00:48:31,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:31,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732700218] [2022-02-15 00:48:31,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:31,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:31,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:31,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 918 proven. 71 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-02-15 00:48:31,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:31,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732700218] [2022-02-15 00:48:31,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732700218] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:48:31,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122902271] [2022-02-15 00:48:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:31,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:48:31,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:48:31,542 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:48:31,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-15 00:48:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:32,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 2037 conjuncts, 25 conjunts are in the unsatisfiable core [2022-02-15 00:48:32,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:48:32,664 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:48:32,665 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:48:32,710 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:48:32,710 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:48:32,808 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-15 00:48:32,831 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-15 00:48:32,836 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-15 00:48:32,851 INFO L353 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-15 00:48:32,852 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-02-15 00:48:32,935 INFO L353 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-15 00:48:32,935 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-02-15 00:48:33,137 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:48:33,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 920 proven. 48 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2022-02-15 00:48:33,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:48:33,871 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-15 00:48:33,873 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-15 00:48:34,627 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_9 Int) (v_arrayElimCell_10 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_9 (store (select |c_#memory_int| v_arrayElimCell_9) (+ 844 v_arrayElimCell_10) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8641))) is different from false [2022-02-15 00:48:34,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 925 proven. 0 refuted. 0 times theorem prover too weak. 653 trivial. 0 not checked. [2022-02-15 00:48:34,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122902271] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:48:34,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:48:34,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 9] total 19 [2022-02-15 00:48:34,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816702276] [2022-02-15 00:48:34,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:34,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 00:48:34,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:34,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 00:48:34,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=252, Unknown=1, NotChecked=32, Total=342 [2022-02-15 00:48:34,779 INFO L87 Difference]: Start difference. First operand 8588 states and 12432 transitions. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:36,785 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 [] [2022-02-15 00:48:37,880 WARN L838 $PredicateComparison]: unable to prove that (and (not (= 8641 (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))) (forall ((v_arrayElimCell_9 Int) (v_arrayElimCell_10 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_9 (store (select |c_#memory_int| v_arrayElimCell_9) (+ 844 v_arrayElimCell_10) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8641)))) is different from false [2022-02-15 00:48:38,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:38,035 INFO L93 Difference]: Finished difference Result 9817 states and 14154 transitions. [2022-02-15 00:48:38,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:38,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-02-15 00:48:38,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:38,048 INFO L225 Difference]: With dead ends: 9817 [2022-02-15 00:48:38,048 INFO L226 Difference]: Without dead ends: 9817 [2022-02-15 00:48:38,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 852 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=64, Invalid=284, Unknown=2, NotChecked=70, Total=420 [2022-02-15 00:48:38,049 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 137 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 261 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:38,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 605 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 310 Invalid, 1 Unknown, 261 Unchecked, 2.3s Time] [2022-02-15 00:48:38,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9817 states. [2022-02-15 00:48:38,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9817 to 7982. [2022-02-15 00:48:38,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7982 states, 7977 states have (on average 1.45041995737746) internal successors, (11570), 7977 states have internal predecessors, (11570), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:38,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7982 states to 7982 states and 11574 transitions. [2022-02-15 00:48:38,131 INFO L78 Accepts]: Start accepts. Automaton has 7982 states and 11574 transitions. Word has length 428 [2022-02-15 00:48:38,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:38,132 INFO L470 AbstractCegarLoop]: Abstraction has 7982 states and 11574 transitions. [2022-02-15 00:48:38,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:38,132 INFO L276 IsEmpty]: Start isEmpty. Operand 7982 states and 11574 transitions. [2022-02-15 00:48:38,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2022-02-15 00:48:38,141 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:38,141 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:38,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-15 00:48:38,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:48:38,363 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:38,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:38,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1597716625, now seen corresponding path program 1 times [2022-02-15 00:48:38,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:38,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578915356] [2022-02-15 00:48:38,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:38,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:38,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:38,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1959 backedges. 1114 proven. 0 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2022-02-15 00:48:38,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:38,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578915356] [2022-02-15 00:48:38,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578915356] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:38,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:38,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:38,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957400879] [2022-02-15 00:48:38,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:38,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:38,596 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:38,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:38,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:38,597 INFO L87 Difference]: Start difference. First operand 7982 states and 11574 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:40,611 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 [] [2022-02-15 00:48:41,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:41,267 INFO L93 Difference]: Finished difference Result 8518 states and 12286 transitions. [2022-02-15 00:48:41,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:41,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 470 [2022-02-15 00:48:41,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:41,277 INFO L225 Difference]: With dead ends: 8518 [2022-02-15 00:48:41,277 INFO L226 Difference]: Without dead ends: 8518 [2022-02-15 00:48:41,277 INFO L932 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 [2022-02-15 00:48:41,278 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 70 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:41,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 625 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 549 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-15 00:48:41,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8518 states. [2022-02-15 00:48:41,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8518 to 7982. [2022-02-15 00:48:41,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7982 states, 7977 states have (on average 1.4481634699761816) internal successors, (11552), 7977 states have internal predecessors, (11552), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:41,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7982 states to 7982 states and 11556 transitions. [2022-02-15 00:48:41,353 INFO L78 Accepts]: Start accepts. Automaton has 7982 states and 11556 transitions. Word has length 470 [2022-02-15 00:48:41,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:41,353 INFO L470 AbstractCegarLoop]: Abstraction has 7982 states and 11556 transitions. [2022-02-15 00:48:41,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:41,354 INFO L276 IsEmpty]: Start isEmpty. Operand 7982 states and 11556 transitions. [2022-02-15 00:48:41,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-02-15 00:48:41,362 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:41,362 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:41,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-15 00:48:41,363 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:41,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:41,363 INFO L85 PathProgramCache]: Analyzing trace with hash -872562479, now seen corresponding path program 1 times [2022-02-15 00:48:41,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:41,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100366443] [2022-02-15 00:48:41,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:41,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:41,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:41,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 1127 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-02-15 00:48:41,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:41,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100366443] [2022-02-15 00:48:41,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100366443] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:41,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:41,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:41,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961807964] [2022-02-15 00:48:41,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:41,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:41,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:41,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:41,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:41,585 INFO L87 Difference]: Start difference. First operand 7982 states and 11556 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:44,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:46,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:48,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:48,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:48,545 INFO L93 Difference]: Finished difference Result 8446 states and 12166 transitions. [2022-02-15 00:48:48,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:48,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 472 [2022-02-15 00:48:48,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:48,554 INFO L225 Difference]: With dead ends: 8446 [2022-02-15 00:48:48,555 INFO L226 Difference]: Without dead ends: 8446 [2022-02-15 00:48:48,555 INFO L932 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 [2022-02-15 00:48:48,555 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 64 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:48,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 617 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 537 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-02-15 00:48:48,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8446 states. [2022-02-15 00:48:48,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8446 to 7982. [2022-02-15 00:48:48,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7982 states, 7977 states have (on average 1.445906982574903) internal successors, (11534), 7977 states have internal predecessors, (11534), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:48,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7982 states to 7982 states and 11538 transitions. [2022-02-15 00:48:48,654 INFO L78 Accepts]: Start accepts. Automaton has 7982 states and 11538 transitions. Word has length 472 [2022-02-15 00:48:48,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:48,654 INFO L470 AbstractCegarLoop]: Abstraction has 7982 states and 11538 transitions. [2022-02-15 00:48:48,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:48,654 INFO L276 IsEmpty]: Start isEmpty. Operand 7982 states and 11538 transitions. [2022-02-15 00:48:48,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-02-15 00:48:48,663 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:48,663 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:48,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-15 00:48:48,663 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:48,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:48,664 INFO L85 PathProgramCache]: Analyzing trace with hash 968346321, now seen corresponding path program 1 times [2022-02-15 00:48:48,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:48,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368239781] [2022-02-15 00:48:48,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:48,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:48,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2060 backedges. 1289 proven. 98 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2022-02-15 00:48:48,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:48,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368239781] [2022-02-15 00:48:48,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368239781] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:48:48,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147285686] [2022-02-15 00:48:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:48,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:48:48,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:48:48,838 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:48:48,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-15 00:48:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:49,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 2225 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-15 00:48:49,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:48:50,232 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-15 00:48:50,249 INFO L353 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-02-15 00:48:50,249 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 55 [2022-02-15 00:48:50,253 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-15 00:48:50,257 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-15 00:48:50,335 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-02-15 00:48:50,340 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-02-15 00:48:50,417 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:48:50,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2060 backedges. 1286 proven. 0 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2022-02-15 00:48:50,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-15 00:48:50,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147285686] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:50,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-15 00:48:50,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-02-15 00:48:50,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395988409] [2022-02-15 00:48:50,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:50,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:48:50,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:50,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:48:50,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-02-15 00:48:50,696 INFO L87 Difference]: Start difference. First operand 7982 states and 11538 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:52,590 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 [] [2022-02-15 00:48:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:52,848 INFO L93 Difference]: Finished difference Result 8637 states and 12452 transitions. [2022-02-15 00:48:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:48:52,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 476 [2022-02-15 00:48:52,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:52,858 INFO L225 Difference]: With dead ends: 8637 [2022-02-15 00:48:52,858 INFO L226 Difference]: Without dead ends: 8637 [2022-02-15 00:48:52,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-15 00:48:52,859 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 53 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:52,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 635 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-15 00:48:52,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8637 states. [2022-02-15 00:48:52,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8637 to 8351. [2022-02-15 00:48:52,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8351 states, 8346 states have (on average 1.444524323028996) internal successors, (12056), 8346 states have internal predecessors, (12056), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:52,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8351 states to 8351 states and 12060 transitions. [2022-02-15 00:48:52,934 INFO L78 Accepts]: Start accepts. Automaton has 8351 states and 12060 transitions. Word has length 476 [2022-02-15 00:48:52,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:52,934 INFO L470 AbstractCegarLoop]: Abstraction has 8351 states and 12060 transitions. [2022-02-15 00:48:52,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:52,935 INFO L276 IsEmpty]: Start isEmpty. Operand 8351 states and 12060 transitions. [2022-02-15 00:48:52,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2022-02-15 00:48:52,944 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:52,944 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:52,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-15 00:48:53,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:48:53,150 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:53,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:53,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1820690579, now seen corresponding path program 1 times [2022-02-15 00:48:53,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:53,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754794394] [2022-02-15 00:48:53,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:53,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:53,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2067 backedges. 1237 proven. 0 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2022-02-15 00:48:53,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:53,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754794394] [2022-02-15 00:48:53,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754794394] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:53,364 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:53,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:53,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698533712] [2022-02-15 00:48:53,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:53,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:53,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:53,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:53,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:53,366 INFO L87 Difference]: Start difference. First operand 8351 states and 12060 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:55,379 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 [] [2022-02-15 00:48:55,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:55,826 INFO L93 Difference]: Finished difference Result 8424 states and 12163 transitions. [2022-02-15 00:48:55,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:55,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 478 [2022-02-15 00:48:55,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:55,834 INFO L225 Difference]: With dead ends: 8424 [2022-02-15 00:48:55,834 INFO L226 Difference]: Without dead ends: 8424 [2022-02-15 00:48:55,835 INFO L932 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 [2022-02-15 00:48:55,835 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 34 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:55,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 597 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:48:55,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8424 states. [2022-02-15 00:48:55,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8424 to 8252. [2022-02-15 00:48:55,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8252 states, 8247 states have (on average 1.4444040257063175) internal successors, (11912), 8247 states have internal predecessors, (11912), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:55,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8252 states to 8252 states and 11916 transitions. [2022-02-15 00:48:55,924 INFO L78 Accepts]: Start accepts. Automaton has 8252 states and 11916 transitions. Word has length 478 [2022-02-15 00:48:55,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:55,924 INFO L470 AbstractCegarLoop]: Abstraction has 8252 states and 11916 transitions. [2022-02-15 00:48:55,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:55,924 INFO L276 IsEmpty]: Start isEmpty. Operand 8252 states and 11916 transitions. [2022-02-15 00:48:55,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-02-15 00:48:55,934 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:55,934 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:55,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-15 00:48:55,934 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:55,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:55,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1506700785, now seen corresponding path program 1 times [2022-02-15 00:48:55,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:55,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615451892] [2022-02-15 00:48:55,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:55,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:56,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:56,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2098 backedges. 1309 proven. 106 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-02-15 00:48:56,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:56,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615451892] [2022-02-15 00:48:56,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615451892] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:48:56,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234601313] [2022-02-15 00:48:56,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:56,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:48:56,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:48:56,177 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:48:56,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-15 00:48:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:57,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 2255 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-15 00:48:57,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:48:57,458 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:48:57,458 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:48:57,498 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:48:57,498 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:48:57,649 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-15 00:48:57,863 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-02-15 00:48:57,896 INFO L353 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2022-02-15 00:48:57,896 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 65 [2022-02-15 00:48:57,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:48:57,904 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-02-15 00:48:57,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:48:57,911 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-02-15 00:48:58,024 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-02-15 00:48:58,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:48:58,030 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-02-15 00:48:58,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:48:58,052 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-02-15 00:48:58,133 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:48:58,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2098 backedges. 1293 proven. 108 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-02-15 00:48:58,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:48:58,696 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-02-15 00:48:58,698 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 46 [2022-02-15 00:48:58,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2098 backedges. 1308 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2022-02-15 00:48:58,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234601313] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:48:58,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:48:58,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 13 [2022-02-15 00:48:58,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454742663] [2022-02-15 00:48:58,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:58,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:48:58,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:58,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:48:58,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-02-15 00:48:58,907 INFO L87 Difference]: Start difference. First operand 8252 states and 11916 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:00,913 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 [] [2022-02-15 00:49:01,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:01,221 INFO L93 Difference]: Finished difference Result 10127 states and 14558 transitions. [2022-02-15 00:49:01,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:49:01,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 480 [2022-02-15 00:49:01,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:01,232 INFO L225 Difference]: With dead ends: 10127 [2022-02-15 00:49:01,233 INFO L226 Difference]: Without dead ends: 10127 [2022-02-15 00:49:01,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 958 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-15 00:49:01,233 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 103 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:01,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 540 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 248 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:49:01,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10127 states. [2022-02-15 00:49:01,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10127 to 9030. [2022-02-15 00:49:01,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9030 states, 9025 states have (on average 1.4444321329639889) internal successors, (13036), 9025 states have internal predecessors, (13036), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:01,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9030 states to 9030 states and 13040 transitions. [2022-02-15 00:49:01,335 INFO L78 Accepts]: Start accepts. Automaton has 9030 states and 13040 transitions. Word has length 480 [2022-02-15 00:49:01,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:01,335 INFO L470 AbstractCegarLoop]: Abstraction has 9030 states and 13040 transitions. [2022-02-15 00:49:01,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:01,335 INFO L276 IsEmpty]: Start isEmpty. Operand 9030 states and 13040 transitions. [2022-02-15 00:49:01,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-02-15 00:49:01,345 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:01,345 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:01,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-15 00:49:01,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:49:01,559 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:01,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:01,560 INFO L85 PathProgramCache]: Analyzing trace with hash -213388925, now seen corresponding path program 1 times [2022-02-15 00:49:01,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:01,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331100105] [2022-02-15 00:49:01,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:01,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:01,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:01,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2105 backedges. 1269 proven. 0 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2022-02-15 00:49:01,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:01,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331100105] [2022-02-15 00:49:01,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331100105] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:01,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:01,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:01,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216222261] [2022-02-15 00:49:01,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:01,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:01,735 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:01,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:01,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:01,736 INFO L87 Difference]: Start difference. First operand 9030 states and 13040 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:04,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:05,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:07,600 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 [] [2022-02-15 00:49:08,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:08,029 INFO L93 Difference]: Finished difference Result 8994 states and 12961 transitions. [2022-02-15 00:49:08,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:08,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 482 [2022-02-15 00:49:08,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:08,101 INFO L225 Difference]: With dead ends: 8994 [2022-02-15 00:49:08,101 INFO L226 Difference]: Without dead ends: 8994 [2022-02-15 00:49:08,102 INFO L932 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 [2022-02-15 00:49:08,102 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 37 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:08,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 590 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 00:49:08,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8994 states. [2022-02-15 00:49:08,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8994 to 8618. [2022-02-15 00:49:08,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8618 states, 8613 states have (on average 1.442122373156856) internal successors, (12421), 8613 states have internal predecessors, (12421), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:08,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8618 states to 8618 states and 12425 transitions. [2022-02-15 00:49:08,170 INFO L78 Accepts]: Start accepts. Automaton has 8618 states and 12425 transitions. Word has length 482 [2022-02-15 00:49:08,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:08,171 INFO L470 AbstractCegarLoop]: Abstraction has 8618 states and 12425 transitions. [2022-02-15 00:49:08,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:08,171 INFO L276 IsEmpty]: Start isEmpty. Operand 8618 states and 12425 transitions. [2022-02-15 00:49:08,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-02-15 00:49:08,180 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:08,180 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:08,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-15 00:49:08,181 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:08,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:08,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1405695153, now seen corresponding path program 1 times [2022-02-15 00:49:08,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:08,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360272252] [2022-02-15 00:49:08,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:08,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:08,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 1210 proven. 0 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2022-02-15 00:49:08,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:08,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360272252] [2022-02-15 00:49:08,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360272252] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:08,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:08,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:08,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46566202] [2022-02-15 00:49:08,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:08,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:08,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:08,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:08,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:08,347 INFO L87 Difference]: Start difference. First operand 8618 states and 12425 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:10,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:12,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:14,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:15,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:16,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:16,366 INFO L93 Difference]: Finished difference Result 9385 states and 13522 transitions. [2022-02-15 00:49:16,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:16,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-02-15 00:49:16,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:16,375 INFO L225 Difference]: With dead ends: 9385 [2022-02-15 00:49:16,376 INFO L226 Difference]: Without dead ends: 9385 [2022-02-15 00:49:16,376 INFO L932 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 [2022-02-15 00:49:16,377 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 32 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:16,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 593 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-02-15 00:49:16,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9385 states. [2022-02-15 00:49:16,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9385 to 9094. [2022-02-15 00:49:16,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9094 states, 9089 states have (on average 1.4395423038838155) internal successors, (13084), 9089 states have internal predecessors, (13084), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:16,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9094 states to 9094 states and 13088 transitions. [2022-02-15 00:49:16,491 INFO L78 Accepts]: Start accepts. Automaton has 9094 states and 13088 transitions. Word has length 484 [2022-02-15 00:49:16,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:16,492 INFO L470 AbstractCegarLoop]: Abstraction has 9094 states and 13088 transitions. [2022-02-15 00:49:16,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:16,492 INFO L276 IsEmpty]: Start isEmpty. Operand 9094 states and 13088 transitions. [2022-02-15 00:49:16,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-02-15 00:49:16,501 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:16,501 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:16,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-15 00:49:16,501 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:16,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:16,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1692367487, now seen corresponding path program 1 times [2022-02-15 00:49:16,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:16,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307771946] [2022-02-15 00:49:16,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:16,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:17,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:17,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 960 proven. 563 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-02-15 00:49:17,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:17,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307771946] [2022-02-15 00:49:17,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307771946] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:49:17,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821175342] [2022-02-15 00:49:17,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:17,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:49:17,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:49:17,390 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:49:17,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-15 00:49:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:18,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 2215 conjuncts, 98 conjunts are in the unsatisfiable core [2022-02-15 00:49:18,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:49:18,801 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:49:18,801 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:49:18,901 INFO L353 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-15 00:49:18,950 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-15 00:49:19,045 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-02-15 00:49:19,047 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-02-15 00:49:19,130 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-15 00:49:19,231 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-15 00:49:19,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:19,291 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-15 00:49:19,314 INFO L353 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-15 00:49:19,314 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-15 00:49:19,322 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:49:19,323 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-02-15 00:49:19,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:19,889 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-15 00:49:19,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:19,907 INFO L353 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-15 00:49:19,907 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-15 00:49:19,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:19,911 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-15 00:49:19,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:19,982 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-15 00:49:19,982 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-15 00:49:19,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:19,987 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-15 00:49:19,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:19,990 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-15 00:49:20,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:20,750 INFO L353 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-15 00:49:20,751 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-15 00:49:20,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:20,787 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-15 00:49:20,788 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-15 00:49:20,834 INFO L353 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-02-15 00:49:20,835 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-02-15 00:49:22,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:22,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:22,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:22,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:22,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:22,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:22,487 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 242 [2022-02-15 00:49:22,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:22,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:22,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:22,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:22,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:22,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:22,495 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 248 [2022-02-15 00:49:22,544 INFO L353 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-02-15 00:49:22,545 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 302 treesize of output 321 [2022-02-15 00:49:26,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:26,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:26,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:26,947 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 239 [2022-02-15 00:49:26,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:26,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:26,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:26,953 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 233 [2022-02-15 00:49:26,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:26,972 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-15 00:49:26,973 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 297 treesize of output 291 [2022-02-15 00:49:27,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:27,153 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 168 [2022-02-15 00:49:27,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:49:27,157 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 96 [2022-02-15 00:49:27,176 INFO L353 Elim1Store]: treesize reduction 112, result has 14.5 percent of original size [2022-02-15 00:49:27,176 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 115 treesize of output 105 [2022-02-15 00:49:27,225 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-15 00:49:27,225 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-15 00:49:27,352 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:49:27,352 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-15 00:49:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 991 proven. 445 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-02-15 00:49:27,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:49:32,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:49:32,055 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 327 treesize of output 307 [2022-02-15 00:49:32,059 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:49:32,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:49:32,061 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 227 [2022-02-15 00:49:32,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:49:32,068 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 249 treesize of output 229 [2022-02-15 00:49:32,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:49:32,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:49:32,072 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 154 [2022-02-15 00:49:35,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1133 proven. 141 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-02-15 00:49:35,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821175342] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 00:49:35,043 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 00:49:35,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 13] total 42 [2022-02-15 00:49:35,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116944896] [2022-02-15 00:49:35,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 00:49:35,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-15 00:49:35,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:35,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-15 00:49:35,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1477, Unknown=0, NotChecked=0, Total=1722 [2022-02-15 00:49:35,045 INFO L87 Difference]: Start difference. First operand 9094 states and 13088 transitions. Second operand has 42 states, 42 states have (on average 13.619047619047619) internal successors, (572), 41 states have internal predecessors, (572), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:36,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:39,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:41,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:43,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:43,806 INFO L93 Difference]: Finished difference Result 13997 states and 19971 transitions. [2022-02-15 00:49:43,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-15 00:49:43,807 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 13.619047619047619) internal successors, (572), 41 states have internal predecessors, (572), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-02-15 00:49:43,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:43,822 INFO L225 Difference]: With dead ends: 13997 [2022-02-15 00:49:43,823 INFO L226 Difference]: Without dead ends: 13997 [2022-02-15 00:49:43,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1030 GetRequests, 955 SyntacticMatches, 8 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1420 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=531, Invalid=4161, Unknown=0, NotChecked=0, Total=4692 [2022-02-15 00:49:43,824 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 1003 mSDsluCounter, 4497 mSDsCounter, 0 mSdLazyCounter, 2859 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 4840 SdHoareTripleChecker+Invalid, 3697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2859 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 828 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:43,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 4840 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2859 Invalid, 2 Unknown, 828 Unchecked, 7.9s Time] [2022-02-15 00:49:43,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13997 states. [2022-02-15 00:49:43,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13997 to 11618. [2022-02-15 00:49:43,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11618 states, 11613 states have (on average 1.4526823387582881) internal successors, (16870), 11613 states have internal predecessors, (16870), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11618 states to 11618 states and 16874 transitions. [2022-02-15 00:49:43,960 INFO L78 Accepts]: Start accepts. Automaton has 11618 states and 16874 transitions. Word has length 484 [2022-02-15 00:49:43,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:43,960 INFO L470 AbstractCegarLoop]: Abstraction has 11618 states and 16874 transitions. [2022-02-15 00:49:43,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 13.619047619047619) internal successors, (572), 41 states have internal predecessors, (572), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:43,960 INFO L276 IsEmpty]: Start isEmpty. Operand 11618 states and 16874 transitions. [2022-02-15 00:49:43,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-02-15 00:49:43,970 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:43,971 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:43,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-15 00:49:44,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-02-15 00:49:44,176 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:44,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:44,176 INFO L85 PathProgramCache]: Analyzing trace with hash 976157272, now seen corresponding path program 1 times [2022-02-15 00:49:44,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:44,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083968876] [2022-02-15 00:49:44,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:44,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:44,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:44,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1557 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-02-15 00:49:44,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:44,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083968876] [2022-02-15 00:49:44,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083968876] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:44,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:44,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:49:44,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901533700] [2022-02-15 00:49:44,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:44,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:49:44,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:44,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:49:44,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:49:44,422 INFO L87 Difference]: Start difference. First operand 11618 states and 16874 transitions. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:47,286 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 [] [2022-02-15 00:49:48,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:48,009 INFO L93 Difference]: Finished difference Result 20531 states and 29675 transitions. [2022-02-15 00:49:48,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:49:48,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 485 [2022-02-15 00:49:48,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:48,031 INFO L225 Difference]: With dead ends: 20531 [2022-02-15 00:49:48,031 INFO L226 Difference]: Without dead ends: 20531 [2022-02-15 00:49:48,031 INFO L932 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 [2022-02-15 00:49:48,031 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 136 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:48,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 585 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-02-15 00:49:48,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20531 states. [2022-02-15 00:49:48,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20531 to 20529. [2022-02-15 00:49:48,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20529 states, 20524 states have (on average 1.445624634574157) internal successors, (29670), 20524 states have internal predecessors, (29670), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:48,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20529 states to 20529 states and 29674 transitions. [2022-02-15 00:49:48,215 INFO L78 Accepts]: Start accepts. Automaton has 20529 states and 29674 transitions. Word has length 485 [2022-02-15 00:49:48,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:48,216 INFO L470 AbstractCegarLoop]: Abstraction has 20529 states and 29674 transitions. [2022-02-15 00:49:48,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:48,216 INFO L276 IsEmpty]: Start isEmpty. Operand 20529 states and 29674 transitions. [2022-02-15 00:49:48,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-02-15 00:49:48,281 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:48,281 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 7, 6, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-15 00:49:48,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-15 00:49:48,281 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:48,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:48,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1680071834, now seen corresponding path program 1 times [2022-02-15 00:49:48,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:48,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514890781] [2022-02-15 00:49:48,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:48,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:48,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:48,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2142 trivial. 0 not checked. [2022-02-15 00:49:48,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:48,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514890781] [2022-02-15 00:49:48,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514890781] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:48,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:48,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 00:49:48,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252378913] [2022-02-15 00:49:48,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:48,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 00:49:48,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:48,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 00:49:48,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:49:48,738 INFO L87 Difference]: Start difference. First operand 20529 states and 29674 transitions. Second operand has 7 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 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) [2022-02-15 00:49:49,818 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 [] [2022-02-15 00:49:51,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:52,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:55,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:57,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:58,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:58,291 INFO L93 Difference]: Finished difference Result 20537 states and 29684 transitions. [2022-02-15 00:49:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 00:49:58,291 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 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 485 [2022-02-15 00:49:58,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:58,382 INFO L225 Difference]: With dead ends: 20537 [2022-02-15 00:49:58,382 INFO L226 Difference]: Without dead ends: 20529 [2022-02-15 00:49:58,382 INFO L932 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 [2022-02-15 00:49:58,383 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 7 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:58,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 852 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2022-02-15 00:49:58,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20529 states. [2022-02-15 00:49:58,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20529 to 20529. [2022-02-15 00:49:58,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20529 states, 20524 states have (on average 1.445575911128435) internal successors, (29669), 20524 states have internal predecessors, (29669), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:58,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20529 states to 20529 states and 29673 transitions. [2022-02-15 00:49:58,558 INFO L78 Accepts]: Start accepts. Automaton has 20529 states and 29673 transitions. Word has length 485 [2022-02-15 00:49:58,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:58,558 INFO L470 AbstractCegarLoop]: Abstraction has 20529 states and 29673 transitions. [2022-02-15 00:49:58,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 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) [2022-02-15 00:49:58,559 INFO L276 IsEmpty]: Start isEmpty. Operand 20529 states and 29673 transitions. [2022-02-15 00:49:58,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-02-15 00:49:58,577 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:58,577 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 7, 6, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-15 00:49:58,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-15 00:49:58,577 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:58,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:58,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1972581287, now seen corresponding path program 1 times [2022-02-15 00:49:58,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:58,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231320037] [2022-02-15 00:49:58,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:58,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:01,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:01,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2142 backedges. 367 proven. 1764 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:50:01,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:01,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231320037] [2022-02-15 00:50:01,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231320037] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:50:01,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622083107] [2022-02-15 00:50:01,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:01,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:50:01,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:50:01,174 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:50:01,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-15 00:50:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:02,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 2245 conjuncts, 100 conjunts are in the unsatisfiable core [2022-02-15 00:50:02,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:50:02,549 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:50:02,549 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:50:02,672 INFO L353 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-15 00:50:02,672 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-15 00:50:02,759 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-02-15 00:50:02,761 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-02-15 00:50:02,880 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-15 00:50:02,995 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-15 00:50:03,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:03,058 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-15 00:50:03,080 INFO L353 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-15 00:50:03,080 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-15 00:50:03,088 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:50:03,088 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-02-15 00:50:03,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:03,680 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-15 00:50:03,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:03,685 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-15 00:50:03,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:03,701 INFO L353 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-15 00:50:03,701 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-15 00:50:03,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:03,761 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-15 00:50:03,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:03,785 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-15 00:50:03,785 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-15 00:50:03,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:03,789 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-15 00:50:04,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:04,503 INFO L353 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-15 00:50:04,503 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-15 00:50:04,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:04,561 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-15 00:50:04,561 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-15 00:50:04,606 INFO L353 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-02-15 00:50:04,606 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-02-15 00:50:05,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:05,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:05,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:05,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:05,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:05,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:05,686 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 348 treesize of output 288 [2022-02-15 00:50:05,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:05,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:05,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:05,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:05,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:05,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:05,695 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 348 treesize of output 270 [2022-02-15 00:50:05,743 INFO L353 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-02-15 00:50:05,743 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 348 treesize of output 367 [2022-02-15 00:50:11,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:11,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:11,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:11,046 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 343 treesize of output 279 [2022-02-15 00:50:11,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:11,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:11,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:11,052 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 343 treesize of output 261 [2022-02-15 00:50:11,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:11,071 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-15 00:50:11,072 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 343 treesize of output 337 [2022-02-15 00:50:11,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:11,296 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 136 [2022-02-15 00:50:11,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:11,299 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 82 [2022-02-15 00:50:11,323 INFO L353 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-02-15 00:50:11,323 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 101 treesize of output 102 [2022-02-15 00:50:11,389 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-15 00:50:11,390 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-15 00:50:11,517 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:50:11,518 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-15 00:50:11,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2142 backedges. 995 proven. 447 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-02-15 00:50:11,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:50:15,775 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 456 treesize of output 430 [2022-02-15 00:50:15,785 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:50:15,785 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 671 treesize of output 619 [2022-02-15 00:50:15,793 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1227 treesize of output 1159 [2022-02-15 00:50:15,825 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:50:15,825 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1755 treesize of output 1619 [2022-02-15 00:50:18,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2142 backedges. 1103 proven. 177 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-02-15 00:50:18,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622083107] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 00:50:18,651 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 00:50:18,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 20, 13] total 55 [2022-02-15 00:50:18,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529480700] [2022-02-15 00:50:18,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 00:50:18,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-02-15 00:50:18,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:18,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-02-15 00:50:18,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=2687, Unknown=0, NotChecked=0, Total=2970 [2022-02-15 00:50:18,653 INFO L87 Difference]: Start difference. First operand 20529 states and 29673 transitions. Second operand has 55 states, 55 states have (on average 14.563636363636364) internal successors, (801), 54 states have internal predecessors, (801), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:21,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:23,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:25,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:27,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:30,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:32,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:34,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:36,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:37,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:39,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:41,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:43,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:45,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:47,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:49,531 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 [] [2022-02-15 00:55:30,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:30,773 INFO L93 Difference]: Finished difference Result 477538 states and 664598 transitions. [2022-02-15 00:55:30,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1314 states. [2022-02-15 00:55:30,775 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 14.563636363636364) internal successors, (801), 54 states have internal predecessors, (801), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 485 [2022-02-15 00:55:30,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:31,749 INFO L225 Difference]: With dead ends: 477538 [2022-02-15 00:55:31,749 INFO L226 Difference]: Without dead ends: 477538 [2022-02-15 00:55:31,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3420 GetRequests, 1892 SyntacticMatches, 176 SemanticMatches, 1352 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977329 ImplicationChecksByTransitivity, 196.2s TimeCoverageRelationStatistics Valid=95699, Invalid=1736263, Unknown=0, NotChecked=0, Total=1831962 [2022-02-15 00:55:31,882 INFO L933 BasicCegarLoop]: 2281 mSDtfsCounter, 11330 mSDsluCounter, 61806 mSDsCounter, 0 mSdLazyCounter, 67795 mSolverCounterSat, 2047 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11330 SdHoareTripleChecker+Valid, 64087 SdHoareTripleChecker+Invalid, 92903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2047 IncrementalHoareTripleChecker+Valid, 67795 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 23051 IncrementalHoareTripleChecker+Unchecked, 108.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:31,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11330 Valid, 64087 Invalid, 92903 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2047 Valid, 67795 Invalid, 10 Unknown, 23051 Unchecked, 108.0s Time] [2022-02-15 00:55:32,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477538 states. [2022-02-15 00:55:36,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477538 to 239120. [2022-02-15 00:55:36,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239120 states, 239115 states have (on average 1.4246617736235703) internal successors, (340658), 239115 states have internal predecessors, (340658), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239120 states to 239120 states and 340662 transitions. [2022-02-15 00:55:37,020 INFO L78 Accepts]: Start accepts. Automaton has 239120 states and 340662 transitions. Word has length 485 [2022-02-15 00:55:37,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:37,020 INFO L470 AbstractCegarLoop]: Abstraction has 239120 states and 340662 transitions. [2022-02-15 00:55:37,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 14.563636363636364) internal successors, (801), 54 states have internal predecessors, (801), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:37,021 INFO L276 IsEmpty]: Start isEmpty. Operand 239120 states and 340662 transitions. [2022-02-15 00:55:37,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-02-15 00:55:37,219 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:37,220 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:55:37,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-02-15 00:55:37,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:55:37,445 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:37,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:37,447 INFO L85 PathProgramCache]: Analyzing trace with hash 722789465, now seen corresponding path program 1 times [2022-02-15 00:55:37,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:37,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946749841] [2022-02-15 00:55:37,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:37,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:37,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:37,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 983 proven. 0 refuted. 0 times theorem prover too weak. 1162 trivial. 0 not checked. [2022-02-15 00:55:37,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:37,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946749841] [2022-02-15 00:55:37,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946749841] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:37,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:37,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:55:37,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783708247] [2022-02-15 00:55:37,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:37,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:55:37,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:37,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:55:37,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:55:37,799 INFO L87 Difference]: Start difference. First operand 239120 states and 340662 transitions. Second operand has 5 states, 5 states have (on average 36.2) internal successors, (181), 4 states have internal predecessors, (181), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:40,303 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 [] [2022-02-15 00:55:42,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:44,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:45,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:45,335 INFO L93 Difference]: Finished difference Result 244597 states and 346596 transitions. [2022-02-15 00:55:45,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:55:45,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 4 states have internal predecessors, (181), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 486 [2022-02-15 00:55:45,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:45,811 INFO L225 Difference]: With dead ends: 244597 [2022-02-15 00:55:45,811 INFO L226 Difference]: Without dead ends: 244597 [2022-02-15 00:55:45,812 INFO L932 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 [2022-02-15 00:55:45,812 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 41 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:45,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 505 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2022-02-15 00:55:45,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244597 states. [2022-02-15 00:55:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244597 to 237247. [2022-02-15 00:55:48,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237247 states, 237242 states have (on average 1.4241238903735427) internal successors, (337862), 237242 states have internal predecessors, (337862), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:49,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237247 states to 237247 states and 337866 transitions. [2022-02-15 00:55:49,064 INFO L78 Accepts]: Start accepts. Automaton has 237247 states and 337866 transitions. Word has length 486 [2022-02-15 00:55:49,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:49,064 INFO L470 AbstractCegarLoop]: Abstraction has 237247 states and 337866 transitions. [2022-02-15 00:55:49,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 4 states have internal predecessors, (181), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:49,064 INFO L276 IsEmpty]: Start isEmpty. Operand 237247 states and 337866 transitions. [2022-02-15 00:55:49,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2022-02-15 00:55:49,231 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:49,231 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:55:49,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-15 00:55:49,231 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:49,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:49,231 INFO L85 PathProgramCache]: Analyzing trace with hash 763062754, now seen corresponding path program 1 times [2022-02-15 00:55:49,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:49,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768553264] [2022-02-15 00:55:49,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:49,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:49,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:49,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2097 backedges. 1195 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2022-02-15 00:55:49,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:49,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768553264] [2022-02-15 00:55:49,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768553264] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:49,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:49,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:55:49,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262233730] [2022-02-15 00:55:49,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:49,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:55:49,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:49,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:55:49,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:55:49,626 INFO L87 Difference]: Start difference. First operand 237247 states and 337866 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:51,633 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 [] [2022-02-15 00:55:52,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:52,644 INFO L93 Difference]: Finished difference Result 243375 states and 344458 transitions. [2022-02-15 00:55:52,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:55:52,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 487 [2022-02-15 00:55:52,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:52,965 INFO L225 Difference]: With dead ends: 243375 [2022-02-15 00:55:52,965 INFO L226 Difference]: Without dead ends: 243375 [2022-02-15 00:55:52,965 INFO L932 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 [2022-02-15 00:55:52,965 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 49 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:52,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 605 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:55:53,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243375 states. [2022-02-15 00:55:55,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243375 to 237247. [2022-02-15 00:55:55,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237247 states, 237242 states have (on average 1.4211606713819644) internal successors, (337159), 237242 states have internal predecessors, (337159), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:56,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237247 states to 237247 states and 337163 transitions. [2022-02-15 00:55:56,109 INFO L78 Accepts]: Start accepts. Automaton has 237247 states and 337163 transitions. Word has length 487 [2022-02-15 00:55:56,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:56,109 INFO L470 AbstractCegarLoop]: Abstraction has 237247 states and 337163 transitions. [2022-02-15 00:55:56,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:56,109 INFO L276 IsEmpty]: Start isEmpty. Operand 237247 states and 337163 transitions. [2022-02-15 00:55:56,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2022-02-15 00:55:56,558 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:56,559 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:55:56,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-15 00:55:56,559 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:56,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:56,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1581644717, now seen corresponding path program 1 times [2022-02-15 00:55:56,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:56,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901904667] [2022-02-15 00:55:56,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:56,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:56,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:56,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 1774 trivial. 0 not checked. [2022-02-15 00:55:56,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:56,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901904667] [2022-02-15 00:55:56,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901904667] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:56,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:56,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 00:55:56,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016543961] [2022-02-15 00:55:56,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:56,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 00:55:56,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:56,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 00:55:56,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:55:56,833 INFO L87 Difference]: Start difference. First operand 237247 states and 337163 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 7 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:58,682 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 [] [2022-02-15 00:56:00,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:02,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:04,768 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 [] [2022-02-15 00:56:07,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:56:07,549 INFO L93 Difference]: Finished difference Result 282718 states and 396887 transitions. [2022-02-15 00:56:07,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 00:56:07,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 7 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 487 [2022-02-15 00:56:07,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:56:08,247 INFO L225 Difference]: With dead ends: 282718 [2022-02-15 00:56:08,247 INFO L226 Difference]: Without dead ends: 282615 [2022-02-15 00:56:08,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-02-15 00:56:08,247 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 429 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 58 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:56:08,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 1153 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1435 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2022-02-15 00:56:08,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282615 states. [2022-02-15 00:56:11,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282615 to 236212. [2022-02-15 00:56:11,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236212 states, 236207 states have (on average 1.4164482847671747) internal successors, (334575), 236207 states have internal predecessors, (334575), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:11,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236212 states to 236212 states and 334579 transitions. [2022-02-15 00:56:11,598 INFO L78 Accepts]: Start accepts. Automaton has 236212 states and 334579 transitions. Word has length 487 [2022-02-15 00:56:11,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:56:11,598 INFO L470 AbstractCegarLoop]: Abstraction has 236212 states and 334579 transitions. [2022-02-15 00:56:11,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 7 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:11,599 INFO L276 IsEmpty]: Start isEmpty. Operand 236212 states and 334579 transitions. [2022-02-15 00:56:12,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2022-02-15 00:56:12,043 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:56:12,043 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:56:12,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-15 00:56:12,043 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:56:12,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:56:12,045 INFO L85 PathProgramCache]: Analyzing trace with hash 154130219, now seen corresponding path program 2 times [2022-02-15 00:56:12,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:56:12,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363670299] [2022-02-15 00:56:12,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:12,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:56:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:12,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:56:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:12,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 1068 proven. 209 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2022-02-15 00:56:12,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:56:12,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363670299] [2022-02-15 00:56:12,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363670299] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:56:12,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984997877] [2022-02-15 00:56:12,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-15 00:56:12,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:56:12,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:56:12,852 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:56:12,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-15 00:56:25,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-15 00:56:25,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-15 00:56:25,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 101 conjunts are in the unsatisfiable core [2022-02-15 00:56:25,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:56:25,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:25,840 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:56:25,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:25,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:25,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:25,955 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:56:25,955 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-15 00:56:26,061 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-02-15 00:56:26,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:26,064 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-02-15 00:56:26,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:26,329 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-02-15 00:56:26,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:26,337 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-02-15 00:56:26,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:26,345 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-15 00:56:26,364 INFO L353 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-15 00:56:26,364 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-15 00:56:26,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:26,367 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 66 [2022-02-15 00:56:27,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:27,041 INFO L353 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-15 00:56:27,041 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-15 00:56:27,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:27,047 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-15 00:56:27,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:27,052 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-15 00:56:27,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:27,106 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-15 00:56:27,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:27,127 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-15 00:56:27,127 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-15 00:56:27,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:27,131 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-15 00:56:27,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:27,887 INFO L353 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-15 00:56:27,888 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-15 00:56:27,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:27,925 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-15 00:56:27,925 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-15 00:56:27,967 INFO L353 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-02-15 00:56:27,967 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-02-15 00:56:30,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,265 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 348 treesize of output 270 [2022-02-15 00:56:30,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,287 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 348 treesize of output 288 [2022-02-15 00:56:30,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:30,316 INFO L353 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-02-15 00:56:30,316 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 348 treesize of output 367 [2022-02-15 00:56:34,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:34,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:34,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:34,626 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 343 treesize of output 261 [2022-02-15 00:56:34,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:34,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:34,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:34,632 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 343 treesize of output 279 [2022-02-15 00:56:34,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:34,653 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-15 00:56:34,653 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 343 treesize of output 337 [2022-02-15 00:56:34,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:34,936 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 136 [2022-02-15 00:56:34,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:34,939 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 82 [2022-02-15 00:56:34,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:34,959 INFO L353 Elim1Store]: treesize reduction 89, result has 25.2 percent of original size [2022-02-15 00:56:34,960 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 101 treesize of output 102 [2022-02-15 00:56:35,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:35,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:35,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:35,020 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:56:35,021 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-02-15 00:56:35,206 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:56:35,206 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 11 [2022-02-15 00:56:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 1006 proven. 401 refuted. 0 times theorem prover too weak. 736 trivial. 0 not checked. [2022-02-15 00:56:35,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:56:38,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:56:38,785 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 327 treesize of output 307 [2022-02-15 00:56:38,789 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:56:38,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:56:38,791 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 227 [2022-02-15 00:56:38,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:56:38,796 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 249 treesize of output 229 [2022-02-15 00:56:38,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:56:38,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:56:38,801 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 154 [2022-02-15 00:56:52,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:56:52,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:56:52,640 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 75 [2022-02-15 00:56:52,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:56:52,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:56:52,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:56:52,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:56:52,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:52,645 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2022-02-15 00:56:52,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 1136 proven. 141 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2022-02-15 00:56:52,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984997877] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 00:56:52,904 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 00:56:52,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23, 15] total 47 [2022-02-15 00:56:52,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135836827] [2022-02-15 00:56:52,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 00:56:52,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-02-15 00:56:52,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:56:52,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-02-15 00:56:52,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=1820, Unknown=7, NotChecked=0, Total=2162 [2022-02-15 00:56:52,906 INFO L87 Difference]: Start difference. First operand 236212 states and 334579 transitions. Second operand has 47 states, 47 states have (on average 12.808510638297872) internal successors, (602), 45 states have internal predecessors, (602), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:55,526 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 [] [2022-02-15 00:56:57,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:58,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:57:00,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:57:02,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:57:05,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:57:06,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:57:07,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:57:09,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:57:11,059 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 [] [2022-02-15 00:57:27,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:57:27,024 INFO L93 Difference]: Finished difference Result 587376 states and 820383 transitions. [2022-02-15 00:57:27,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-15 00:57:27,024 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 12.808510638297872) internal successors, (602), 45 states have internal predecessors, (602), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 487 [2022-02-15 00:57:27,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:57:28,249 INFO L225 Difference]: With dead ends: 587376 [2022-02-15 00:57:28,250 INFO L226 Difference]: Without dead ends: 587376 [2022-02-15 00:57:28,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1184 GetRequests, 1017 SyntacticMatches, 8 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 9187 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=3712, Invalid=22041, Unknown=7, NotChecked=0, Total=25760 [2022-02-15 00:57:28,251 INFO L933 BasicCegarLoop]: 606 mSDtfsCounter, 3097 mSDsluCounter, 9464 mSDsCounter, 0 mSdLazyCounter, 10292 mSolverCounterSat, 631 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3097 SdHoareTripleChecker+Valid, 10070 SdHoareTripleChecker+Invalid, 14007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 10292 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 3080 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:57:28,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3097 Valid, 10070 Invalid, 14007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 10292 Invalid, 4 Unknown, 3080 Unchecked, 27.6s Time] [2022-02-15 00:57:28,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587376 states. [2022-02-15 00:57:34,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587376 to 500278. [2022-02-15 00:57:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500278 states, 500273 states have (on average 1.407253639512826) internal successors, (704011), 500273 states have internal predecessors, (704011), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:57:35,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500278 states to 500278 states and 704015 transitions. [2022-02-15 00:57:35,725 INFO L78 Accepts]: Start accepts. Automaton has 500278 states and 704015 transitions. Word has length 487 [2022-02-15 00:57:35,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:57:35,725 INFO L470 AbstractCegarLoop]: Abstraction has 500278 states and 704015 transitions. [2022-02-15 00:57:35,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 12.808510638297872) internal successors, (602), 45 states have internal predecessors, (602), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:57:35,726 INFO L276 IsEmpty]: Start isEmpty. Operand 500278 states and 704015 transitions. [2022-02-15 00:57:36,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2022-02-15 00:57:36,381 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:57:36,381 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:57:36,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-02-15 00:57:36,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2022-02-15 00:57:36,594 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:57:36,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:57:36,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1936218426, now seen corresponding path program 1 times [2022-02-15 00:57:36,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:57:36,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695554418] [2022-02-15 00:57:36,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:57:36,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:57:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:57:37,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:57:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:57:37,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2179 backedges. 1178 proven. 358 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2022-02-15 00:57:37,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:57:37,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695554418] [2022-02-15 00:57:37,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695554418] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:57:37,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221465050] [2022-02-15 00:57:37,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:57:37,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:57:37,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:57:37,278 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:57:37,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-15 00:57:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:57:38,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 2298 conjuncts, 25 conjunts are in the unsatisfiable core [2022-02-15 00:57:38,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:57:38,715 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:57:38,715 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:57:38,758 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:57:38,759 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:57:39,002 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-15 00:57:39,018 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-15 00:57:39,019 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-15 00:57:39,030 INFO L353 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-15 00:57:39,030 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-02-15 00:57:39,079 INFO L353 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-15 00:57:39,080 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-02-15 00:57:39,216 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:57:39,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2179 backedges. 1289 proven. 112 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2022-02-15 00:57:39,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:57:39,697 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-15 00:57:39,698 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-15 00:57:40,539 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_203 Int) (v_arrayElimCell_204 Int)) (not (= 8608 (select (select (store |c_#memory_int| v_arrayElimCell_203 (store (select |c_#memory_int| v_arrayElimCell_203) (+ v_arrayElimCell_204 844) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-02-15 00:57:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2179 backedges. 1294 proven. 0 refuted. 0 times theorem prover too weak. 885 trivial. 0 not checked. [2022-02-15 00:57:40,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221465050] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:57:40,782 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:57:40,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [19, 9] total 30 [2022-02-15 00:57:40,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222600509] [2022-02-15 00:57:40,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:57:40,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 00:57:40,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:57:40,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 00:57:40,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=700, Unknown=1, NotChecked=54, Total=870 [2022-02-15 00:57:40,783 INFO L87 Difference]: Start difference. First operand 500278 states and 704015 transitions. Second operand has 6 states, 6 states have (on average 30.5) internal successors, (183), 6 states have internal predecessors, (183), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)