/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.10.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 08:45:42,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 08:45:42,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 08:45:42,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 08:45:42,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 08:45:42,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 08:45:42,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 08:45:42,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 08:45:42,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 08:45:42,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 08:45:42,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 08:45:42,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 08:45:42,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 08:45:42,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 08:45:42,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 08:45:42,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 08:45:42,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 08:45:42,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 08:45:42,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 08:45:42,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 08:45:42,261 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 08:45:42,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 08:45:42,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 08:45:42,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 08:45:42,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 08:45:42,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 08:45:42,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 08:45:42,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 08:45:42,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 08:45:42,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 08:45:42,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-06 08:45:42,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-06 08:45:42,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-06 08:45:42,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-06 08:45:42,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-06 08:45:42,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-06 08:45:42,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-06 08:45:42,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-06 08:45:42,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-06 08:45:42,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 08:45:42,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 08:45:42,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 08:45:42,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-06 08:45:42,283 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 08:45:42,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 08:45:42,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 08:45:42,284 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 08:45:42,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 08:45:42,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 08:45:42,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 08:45:42,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 08:45:42,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 08:45:42,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 08:45:42,285 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 08:45:42,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 08:45:42,285 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 08:45:42,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 08:45:42,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 08:45:42,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 08:45:42,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 08:45:42,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 08:45:42,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:45:42,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 08:45:42,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 08:45:42,287 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 08:45:42,287 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 08:45:42,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 08:45:42,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 08:45:42,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 08:45:42,531 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 08:45:42,531 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 08:45:42,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-04-06 08:45:42,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39290dd91/6a5c0d579c0f4da3bcae8b7ebb1f934f/FLAGf206b3ea2 [2022-04-06 08:45:43,121 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 08:45:43,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-04-06 08:45:43,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39290dd91/6a5c0d579c0f4da3bcae8b7ebb1f934f/FLAGf206b3ea2 [2022-04-06 08:45:43,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39290dd91/6a5c0d579c0f4da3bcae8b7ebb1f934f [2022-04-06 08:45:43,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 08:45:43,415 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 08:45:43,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 08:45:43,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 08:45:43,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 08:45:43,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:45:43" (1/1) ... [2022-04-06 08:45:43,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c6f7c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:45:43, skipping insertion in model container [2022-04-06 08:45:43,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:45:43" (1/1) ... [2022-04-06 08:45:43,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 08:45:43,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 08:45:43,833 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.10.i.cil-1.c[73581,73594] [2022-04-06 08:45:43,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:45:43,874 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 08:45:43,981 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.10.i.cil-1.c[73581,73594] [2022-04-06 08:45:43,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:45:43,995 INFO L208 MainTranslator]: Completed translation [2022-04-06 08:45:43,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:45:43 WrapperNode [2022-04-06 08:45:43,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 08:45:43,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 08:45:43,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 08:45:43,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 08:45:44,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:45:43" (1/1) ... [2022-04-06 08:45:44,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:45:43" (1/1) ... [2022-04-06 08:45:44,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:45:43" (1/1) ... [2022-04-06 08:45:44,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:45:43" (1/1) ... [2022-04-06 08:45:44,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:45:43" (1/1) ... [2022-04-06 08:45:44,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:45:43" (1/1) ... [2022-04-06 08:45:44,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:45:43" (1/1) ... [2022-04-06 08:45:44,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 08:45:44,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 08:45:44,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 08:45:44,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 08:45:44,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:45:43" (1/1) ... [2022-04-06 08:45:44,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:45:44,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:45:44,148 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) [2022-04-06 08:45:44,173 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 [2022-04-06 08:45:44,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 08:45:44,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 08:45:44,187 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 08:45:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-06 08:45:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-06 08:45:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 08:45:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-06 08:45:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-06 08:45:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-06 08:45:44,189 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-06 08:45:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 08:45:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 08:45:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 08:45:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 08:45:44,190 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-06 08:45:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 08:45:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 08:45:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 08:45:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-06 08:45:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-06 08:45:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-06 08:45:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-06 08:45:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-06 08:45:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-06 08:45:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-06 08:45:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 08:45:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 08:45:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-06 08:45:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 08:45:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 08:45:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 08:45:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-06 08:45:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-06 08:45:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 08:45:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 08:45:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 08:45:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-06 08:45:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-06 08:45:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-06 08:45:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-06 08:45:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 08:45:44,384 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 08:45:44,385 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 08:45:45,055 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 08:45:45,484 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-06 08:45:45,484 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-06 08:45:45,495 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 08:45:45,501 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 08:45:45,502 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 08:45:45,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:45:45 BoogieIcfgContainer [2022-04-06 08:45:45,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 08:45:45,504 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 08:45:45,504 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 08:45:45,505 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 08:45:45,508 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:45:45" (1/1) ... [2022-04-06 08:45:45,510 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-06 08:45:45,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:45:45 BasicIcfg [2022-04-06 08:45:45,572 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 08:45:45,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 08:45:45,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 08:45:45,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 08:45:45,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 08:45:43" (1/4) ... [2022-04-06 08:45:45,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d26448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:45:45, skipping insertion in model container [2022-04-06 08:45:45,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:45:43" (2/4) ... [2022-04-06 08:45:45,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d26448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:45:45, skipping insertion in model container [2022-04-06 08:45:45,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:45:45" (3/4) ... [2022-04-06 08:45:45,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d26448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 08:45:45, skipping insertion in model container [2022-04-06 08:45:45,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:45:45" (4/4) ... [2022-04-06 08:45:45,583 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-1.cJordan [2022-04-06 08:45:45,588 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-06 08:45:45,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 08:45:45,639 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 08:45:45,648 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-06 08:45:45,648 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 08:45:45,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 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) [2022-04-06 08:45:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-04-06 08:45:45,684 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:45,685 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:45,685 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:45,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:45,692 INFO L85 PathProgramCache]: Analyzing trace with hash 645838238, now seen corresponding path program 1 times [2022-04-06 08:45:45,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:45,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225630575] [2022-04-06 08:45:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:45,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:46,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:46,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:45:46,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:46,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225630575] [2022-04-06 08:45:46,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225630575] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:46,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:46,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:46,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950269406] [2022-04-06 08:45:46,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:46,294 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:46,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:46,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:46,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:46,323 INFO L87 Difference]: Start difference. First operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:48,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:48,784 INFO L93 Difference]: Finished difference Result 283 states and 469 transitions. [2022-04-06 08:45:48,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:48,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-04-06 08:45:48,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:48,796 INFO L225 Difference]: With dead ends: 283 [2022-04-06 08:45:48,796 INFO L226 Difference]: Without dead ends: 257 [2022-04-06 08:45:48,797 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:45:48,800 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 150 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:48,801 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 451 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 08:45:48,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-04-06 08:45:48,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 180. [2022-04-06 08:45:48,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.6) internal successors, (280), 175 states have internal predecessors, (280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:48,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 284 transitions. [2022-04-06 08:45:48,840 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 284 transitions. Word has length 49 [2022-04-06 08:45:48,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:48,840 INFO L478 AbstractCegarLoop]: Abstraction has 180 states and 284 transitions. [2022-04-06 08:45:48,841 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:48,841 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 284 transitions. [2022-04-06 08:45:48,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-06 08:45:48,843 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:48,843 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:48,843 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 08:45:48,843 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:48,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:48,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1424421714, now seen corresponding path program 1 times [2022-04-06 08:45:48,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:48,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497642547] [2022-04-06 08:45:48,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:48,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:48,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:48,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:45:48,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:48,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497642547] [2022-04-06 08:45:48,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497642547] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:48,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:48,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:48,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907054329] [2022-04-06 08:45:48,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:48,995 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:49,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:49,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:49,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:49,001 INFO L87 Difference]: Start difference. First operand 180 states and 284 transitions. 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) [2022-04-06 08:45:51,347 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 [] [2022-04-06 08:45:52,364 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 [] [2022-04-06 08:45:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:52,965 INFO L93 Difference]: Finished difference Result 296 states and 463 transitions. [2022-04-06 08:45:52,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:52,965 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 [2022-04-06 08:45:52,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:52,968 INFO L225 Difference]: With dead ends: 296 [2022-04-06 08:45:52,968 INFO L226 Difference]: Without dead ends: 296 [2022-04-06 08:45:52,968 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:45:52,969 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 117 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:52,969 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-06 08:45:52,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-04-06 08:45:52,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 220. [2022-04-06 08:45:52,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.6465116279069767) internal successors, (354), 215 states have internal predecessors, (354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:52,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 358 transitions. [2022-04-06 08:45:52,992 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 358 transitions. Word has length 50 [2022-04-06 08:45:52,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:52,993 INFO L478 AbstractCegarLoop]: Abstraction has 220 states and 358 transitions. [2022-04-06 08:45:52,993 INFO L479 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) [2022-04-06 08:45:52,993 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 358 transitions. [2022-04-06 08:45:53,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-04-06 08:45:53,001 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:53,001 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:53,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 08:45:53,002 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:53,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:53,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1123828743, now seen corresponding path program 1 times [2022-04-06 08:45:53,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:53,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555674171] [2022-04-06 08:45:53,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:53,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:53,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:53,162 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-04-06 08:45:53,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:53,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555674171] [2022-04-06 08:45:53,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555674171] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:53,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:53,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:53,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146305047] [2022-04-06 08:45:53,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:53,163 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:53,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:53,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:53,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:53,164 INFO L87 Difference]: Start difference. First operand 220 states and 358 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) [2022-04-06 08:45:54,816 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 [] [2022-04-06 08:45:56,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:56,059 INFO L93 Difference]: Finished difference Result 248 states and 398 transitions. [2022-04-06 08:45:56,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:56,060 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 78 [2022-04-06 08:45:56,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:56,061 INFO L225 Difference]: With dead ends: 248 [2022-04-06 08:45:56,061 INFO L226 Difference]: Without dead ends: 248 [2022-04-06 08:45:56,062 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:45:56,063 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:56,063 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 469 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-06 08:45:56,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-04-06 08:45:56,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 231. [2022-04-06 08:45:56,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6504424778761062) internal successors, (373), 226 states have internal predecessors, (373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 377 transitions. [2022-04-06 08:45:56,077 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 377 transitions. Word has length 78 [2022-04-06 08:45:56,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:56,077 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 377 transitions. [2022-04-06 08:45:56,078 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:56,078 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 377 transitions. [2022-04-06 08:45:56,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-04-06 08:45:56,079 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:56,086 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:56,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 08:45:56,086 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:56,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:56,087 INFO L85 PathProgramCache]: Analyzing trace with hash 959141718, now seen corresponding path program 1 times [2022-04-06 08:45:56,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:56,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531998604] [2022-04-06 08:45:56,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:56,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:56,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 08:45:56,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:56,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531998604] [2022-04-06 08:45:56,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531998604] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:56,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:56,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:56,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414794499] [2022-04-06 08:45:56,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:56,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:56,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:56,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:56,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:56,312 INFO L87 Difference]: Start difference. First operand 231 states and 377 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) [2022-04-06 08:45:57,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:59,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:01,604 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 [] [2022-04-06 08:46:01,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:01,987 INFO L93 Difference]: Finished difference Result 248 states and 397 transitions. [2022-04-06 08:46:01,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:01,987 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 91 [2022-04-06 08:46:01,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:01,988 INFO L225 Difference]: With dead ends: 248 [2022-04-06 08:46:01,989 INFO L226 Difference]: Without dead ends: 248 [2022-04-06 08:46:01,989 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:01,990 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 24 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:01,990 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 471 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 08:46:01,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-04-06 08:46:01,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 231. [2022-04-06 08:46:01,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6460176991150441) internal successors, (372), 226 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:01,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 376 transitions. [2022-04-06 08:46:01,999 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 376 transitions. Word has length 91 [2022-04-06 08:46:01,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:01,999 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 376 transitions. [2022-04-06 08:46:02,000 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:02,000 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 376 transitions. [2022-04-06 08:46:02,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-04-06 08:46:02,001 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:02,001 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:02,001 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 08:46:02,002 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:02,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:02,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1315439647, now seen corresponding path program 1 times [2022-04-06 08:46:02,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:02,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48800609] [2022-04-06 08:46:02,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:02,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:02,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:02,163 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 08:46:02,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:02,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48800609] [2022-04-06 08:46:02,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48800609] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:02,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:02,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:02,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771847387] [2022-04-06 08:46:02,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:02,164 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:02,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:02,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:02,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:02,165 INFO L87 Difference]: Start difference. First operand 231 states and 376 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) [2022-04-06 08:46:04,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:04,877 INFO L93 Difference]: Finished difference Result 247 states and 395 transitions. [2022-04-06 08:46:04,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:04,878 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 92 [2022-04-06 08:46:04,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:04,879 INFO L225 Difference]: With dead ends: 247 [2022-04-06 08:46:04,879 INFO L226 Difference]: Without dead ends: 247 [2022-04-06 08:46:04,879 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:04,880 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 28 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:04,881 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 473 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-06 08:46:04,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-04-06 08:46:04,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 231. [2022-04-06 08:46:04,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6415929203539823) internal successors, (371), 226 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 375 transitions. [2022-04-06 08:46:04,888 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 375 transitions. Word has length 92 [2022-04-06 08:46:04,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:04,888 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 375 transitions. [2022-04-06 08:46:04,888 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:04,889 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 375 transitions. [2022-04-06 08:46:04,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-04-06 08:46:04,890 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:04,890 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:04,890 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 08:46:04,890 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:04,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash 660427777, now seen corresponding path program 1 times [2022-04-06 08:46:04,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:04,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351727532] [2022-04-06 08:46:04,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:04,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:05,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 08:46:05,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:05,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351727532] [2022-04-06 08:46:05,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351727532] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:05,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:05,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:05,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607589973] [2022-04-06 08:46:05,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:05,045 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:05,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:05,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:05,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:05,047 INFO L87 Difference]: Start difference. First operand 231 states and 375 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) [2022-04-06 08:46:06,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:07,843 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 [] [2022-04-06 08:46:09,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:09,361 INFO L93 Difference]: Finished difference Result 307 states and 477 transitions. [2022-04-06 08:46:09,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:09,362 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 92 [2022-04-06 08:46:09,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:09,363 INFO L225 Difference]: With dead ends: 307 [2022-04-06 08:46:09,364 INFO L226 Difference]: Without dead ends: 307 [2022-04-06 08:46:09,364 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:09,364 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 144 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:09,365 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-04-06 08:46:09,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-04-06 08:46:09,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 231. [2022-04-06 08:46:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6283185840707965) internal successors, (368), 226 states have internal predecessors, (368), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:09,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 372 transitions. [2022-04-06 08:46:09,371 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 372 transitions. Word has length 92 [2022-04-06 08:46:09,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:09,377 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 372 transitions. [2022-04-06 08:46:09,377 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:09,378 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 372 transitions. [2022-04-06 08:46:09,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-04-06 08:46:09,379 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:09,379 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 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] [2022-04-06 08:46:09,379 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 08:46:09,379 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:09,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:09,380 INFO L85 PathProgramCache]: Analyzing trace with hash -817795007, now seen corresponding path program 1 times [2022-04-06 08:46:09,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:09,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290864515] [2022-04-06 08:46:09,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:09,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:09,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 08:46:09,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:09,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290864515] [2022-04-06 08:46:09,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290864515] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:09,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:09,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:09,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609390921] [2022-04-06 08:46:09,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:09,518 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:09,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:09,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:09,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:09,519 INFO L87 Difference]: Start difference. First operand 231 states and 372 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) [2022-04-06 08:46:11,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:14,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:14,152 INFO L93 Difference]: Finished difference Result 245 states and 389 transitions. [2022-04-06 08:46:14,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:14,156 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 92 [2022-04-06 08:46:14,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:14,158 INFO L225 Difference]: With dead ends: 245 [2022-04-06 08:46:14,158 INFO L226 Difference]: Without dead ends: 245 [2022-04-06 08:46:14,158 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:14,159 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 20 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:14,159 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 477 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 08:46:14,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-04-06 08:46:14,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 231. [2022-04-06 08:46:14,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6238938053097345) internal successors, (367), 226 states have internal predecessors, (367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:14,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 371 transitions. [2022-04-06 08:46:14,165 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 371 transitions. Word has length 92 [2022-04-06 08:46:14,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:14,165 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 371 transitions. [2022-04-06 08:46:14,166 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:14,166 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 371 transitions. [2022-04-06 08:46:14,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-04-06 08:46:14,166 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:14,167 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:14,167 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 08:46:14,167 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:14,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:14,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1735376737, now seen corresponding path program 1 times [2022-04-06 08:46:14,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:14,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303826776] [2022-04-06 08:46:14,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:14,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:14,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 08:46:14,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:14,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303826776] [2022-04-06 08:46:14,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303826776] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:14,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:14,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:14,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422768206] [2022-04-06 08:46:14,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:14,275 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:14,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:14,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:14,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:14,276 INFO L87 Difference]: Start difference. First operand 231 states and 371 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) [2022-04-06 08:46:15,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:17,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:19,951 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 [] [2022-04-06 08:46:20,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:20,326 INFO L93 Difference]: Finished difference Result 244 states and 387 transitions. [2022-04-06 08:46:20,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:20,327 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 92 [2022-04-06 08:46:20,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:20,328 INFO L225 Difference]: With dead ends: 244 [2022-04-06 08:46:20,328 INFO L226 Difference]: Without dead ends: 244 [2022-04-06 08:46:20,328 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:20,329 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 18 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:20,329 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 08:46:20,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-04-06 08:46:20,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 231. [2022-04-06 08:46:20,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6194690265486726) internal successors, (366), 226 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:20,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 370 transitions. [2022-04-06 08:46:20,335 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 370 transitions. Word has length 92 [2022-04-06 08:46:20,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:20,335 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 370 transitions. [2022-04-06 08:46:20,335 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:20,335 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 370 transitions. [2022-04-06 08:46:20,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-04-06 08:46:20,336 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:20,336 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:20,336 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 08:46:20,336 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:20,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:20,337 INFO L85 PathProgramCache]: Analyzing trace with hash 471690038, now seen corresponding path program 1 times [2022-04-06 08:46:20,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:20,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463176797] [2022-04-06 08:46:20,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:20,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:20,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:20,485 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 08:46:20,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:20,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463176797] [2022-04-06 08:46:20,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463176797] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:20,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:20,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:20,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584014083] [2022-04-06 08:46:20,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:20,486 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:20,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:20,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:20,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:20,487 INFO L87 Difference]: Start difference. First operand 231 states and 370 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) [2022-04-06 08:46:22,245 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 [] [2022-04-06 08:46:24,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:26,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:26,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:26,503 INFO L93 Difference]: Finished difference Result 244 states and 386 transitions. [2022-04-06 08:46:26,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:26,504 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 93 [2022-04-06 08:46:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:26,505 INFO L225 Difference]: With dead ends: 244 [2022-04-06 08:46:26,505 INFO L226 Difference]: Without dead ends: 244 [2022-04-06 08:46:26,505 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:26,506 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 22 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:26,506 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 08:46:26,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-04-06 08:46:26,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 231. [2022-04-06 08:46:26,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6150442477876106) internal successors, (365), 226 states have internal predecessors, (365), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:26,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 369 transitions. [2022-04-06 08:46:26,511 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 369 transitions. Word has length 93 [2022-04-06 08:46:26,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:26,512 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 369 transitions. [2022-04-06 08:46:26,512 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:26,512 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 369 transitions. [2022-04-06 08:46:26,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-04-06 08:46:26,515 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:26,515 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:26,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 08:46:26,515 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:26,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:26,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1910970971, now seen corresponding path program 1 times [2022-04-06 08:46:26,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:26,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847322572] [2022-04-06 08:46:26,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:26,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:26,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:26,632 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 08:46:26,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:26,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847322572] [2022-04-06 08:46:26,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847322572] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:26,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:26,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:26,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99733642] [2022-04-06 08:46:26,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:26,638 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:26,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:26,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:26,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:26,639 INFO L87 Difference]: Start difference. First operand 231 states and 369 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:28,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:29,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:31,922 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 [] [2022-04-06 08:46:32,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:32,443 INFO L93 Difference]: Finished difference Result 307 states and 471 transitions. [2022-04-06 08:46:32,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:32,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-04-06 08:46:32,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:32,445 INFO L225 Difference]: With dead ends: 307 [2022-04-06 08:46:32,446 INFO L226 Difference]: Without dead ends: 307 [2022-04-06 08:46:32,446 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:32,446 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 141 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:32,447 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:46:32,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-04-06 08:46:32,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 231. [2022-04-06 08:46:32,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6017699115044248) internal successors, (362), 226 states have internal predecessors, (362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:32,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 366 transitions. [2022-04-06 08:46:32,454 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 366 transitions. Word has length 94 [2022-04-06 08:46:32,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:32,454 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 366 transitions. [2022-04-06 08:46:32,454 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:32,455 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 366 transitions. [2022-04-06 08:46:32,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-04-06 08:46:32,456 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:32,456 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:32,456 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 08:46:32,456 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:32,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:32,457 INFO L85 PathProgramCache]: Analyzing trace with hash -157861543, now seen corresponding path program 1 times [2022-04-06 08:46:32,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:32,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372487061] [2022-04-06 08:46:32,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:32,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:32,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:32,582 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 08:46:32,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:32,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372487061] [2022-04-06 08:46:32,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372487061] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:32,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:32,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:32,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921505333] [2022-04-06 08:46:32,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:32,583 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:32,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:32,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:32,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:32,584 INFO L87 Difference]: Start difference. First operand 231 states and 366 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:33,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:36,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:37,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:37,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:37,988 INFO L93 Difference]: Finished difference Result 307 states and 468 transitions. [2022-04-06 08:46:37,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:37,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-04-06 08:46:37,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:37,990 INFO L225 Difference]: With dead ends: 307 [2022-04-06 08:46:37,990 INFO L226 Difference]: Without dead ends: 307 [2022-04-06 08:46:37,990 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:37,990 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 139 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:37,991 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 08:46:37,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-04-06 08:46:37,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 231. [2022-04-06 08:46:37,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.5884955752212389) internal successors, (359), 226 states have internal predecessors, (359), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:37,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 363 transitions. [2022-04-06 08:46:37,996 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 363 transitions. Word has length 95 [2022-04-06 08:46:37,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:37,996 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 363 transitions. [2022-04-06 08:46:37,996 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:37,997 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 363 transitions. [2022-04-06 08:46:37,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-04-06 08:46:37,997 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:37,998 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:37,998 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 08:46:37,998 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:37,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:37,998 INFO L85 PathProgramCache]: Analyzing trace with hash -774763640, now seen corresponding path program 1 times [2022-04-06 08:46:37,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:37,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325118554] [2022-04-06 08:46:37,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:37,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:38,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:38,142 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:46:38,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:38,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325118554] [2022-04-06 08:46:38,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325118554] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:38,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:38,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:38,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158016680] [2022-04-06 08:46:38,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:38,143 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:38,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:38,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:38,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:38,144 INFO L87 Difference]: Start difference. First operand 231 states and 363 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:39,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:42,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:42,400 INFO L93 Difference]: Finished difference Result 383 states and 602 transitions. [2022-04-06 08:46:42,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:42,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-04-06 08:46:42,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:42,402 INFO L225 Difference]: With dead ends: 383 [2022-04-06 08:46:42,402 INFO L226 Difference]: Without dead ends: 383 [2022-04-06 08:46:42,402 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:42,403 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 121 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:42,403 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 342 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-04-06 08:46:42,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-04-06 08:46:42,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 295. [2022-04-06 08:46:42,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.6172413793103448) internal successors, (469), 290 states have internal predecessors, (469), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:42,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 473 transitions. [2022-04-06 08:46:42,410 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 473 transitions. Word has length 95 [2022-04-06 08:46:42,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:42,410 INFO L478 AbstractCegarLoop]: Abstraction has 295 states and 473 transitions. [2022-04-06 08:46:42,410 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:42,410 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 473 transitions. [2022-04-06 08:46:42,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-04-06 08:46:42,411 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:42,411 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-06 08:46:42,411 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 08:46:42,412 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:42,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:42,412 INFO L85 PathProgramCache]: Analyzing trace with hash -390530396, now seen corresponding path program 1 times [2022-04-06 08:46:42,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:42,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060078787] [2022-04-06 08:46:42,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:42,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:42,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-04-06 08:46:42,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:42,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060078787] [2022-04-06 08:46:42,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060078787] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:42,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:42,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:42,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699220411] [2022-04-06 08:46:42,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:42,522 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:42,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:42,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:42,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:42,523 INFO L87 Difference]: Start difference. First operand 295 states and 473 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:45,116 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 [] [2022-04-06 08:46:46,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:46,103 INFO L93 Difference]: Finished difference Result 338 states and 535 transitions. [2022-04-06 08:46:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:46,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-04-06 08:46:46,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:46,105 INFO L225 Difference]: With dead ends: 338 [2022-04-06 08:46:46,105 INFO L226 Difference]: Without dead ends: 338 [2022-04-06 08:46:46,105 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:46,106 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 31 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:46,106 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 491 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-06 08:46:46,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-04-06 08:46:46,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 317. [2022-04-06 08:46:46,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.6153846153846154) internal successors, (504), 312 states have internal predecessors, (504), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:46,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 508 transitions. [2022-04-06 08:46:46,113 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 508 transitions. Word has length 100 [2022-04-06 08:46:46,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:46,113 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 508 transitions. [2022-04-06 08:46:46,113 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:46,113 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 508 transitions. [2022-04-06 08:46:46,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-04-06 08:46:46,128 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:46,129 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:46:46,129 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 08:46:46,129 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:46,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:46,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1693682037, now seen corresponding path program 1 times [2022-04-06 08:46:46,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:46,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925864956] [2022-04-06 08:46:46,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:46,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:46,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:46,245 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 08:46:46,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:46,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925864956] [2022-04-06 08:46:46,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925864956] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:46,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:46,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:46,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613924335] [2022-04-06 08:46:46,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:46,247 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:46,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:46,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:46,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:46,248 INFO L87 Difference]: Start difference. First operand 317 states and 508 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:47,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:49,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:51,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:51,142 INFO L93 Difference]: Finished difference Result 338 states and 534 transitions. [2022-04-06 08:46:51,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:51,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-04-06 08:46:51,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:51,143 INFO L225 Difference]: With dead ends: 338 [2022-04-06 08:46:51,143 INFO L226 Difference]: Without dead ends: 338 [2022-04-06 08:46:51,144 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:51,144 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 36 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:51,144 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 491 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-04-06 08:46:51,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-04-06 08:46:51,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 317. [2022-04-06 08:46:51,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.6121794871794872) internal successors, (503), 312 states have internal predecessors, (503), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:51,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 507 transitions. [2022-04-06 08:46:51,151 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 507 transitions. Word has length 108 [2022-04-06 08:46:51,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:51,151 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 507 transitions. [2022-04-06 08:46:51,151 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:51,151 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 507 transitions. [2022-04-06 08:46:51,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-06 08:46:51,152 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:51,152 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 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] [2022-04-06 08:46:51,152 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 08:46:51,153 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:51,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:51,153 INFO L85 PathProgramCache]: Analyzing trace with hash 478118402, now seen corresponding path program 1 times [2022-04-06 08:46:51,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:51,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898126916] [2022-04-06 08:46:51,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:51,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:51,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:51,266 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 08:46:51,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:51,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898126916] [2022-04-06 08:46:51,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898126916] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:51,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:51,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:51,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069952219] [2022-04-06 08:46:51,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:51,267 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:51,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:51,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:51,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:51,268 INFO L87 Difference]: Start difference. First operand 317 states and 507 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) [2022-04-06 08:46:52,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:54,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:46:56,588 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 [] [2022-04-06 08:46:57,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:46:57,594 INFO L93 Difference]: Finished difference Result 336 states and 531 transitions. [2022-04-06 08:46:57,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:46:57,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-04-06 08:46:57,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:46:57,596 INFO L225 Difference]: With dead ends: 336 [2022-04-06 08:46:57,597 INFO L226 Difference]: Without dead ends: 336 [2022-04-06 08:46:57,597 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:46:57,597 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 34 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:46:57,598 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 495 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 388 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 08:46:57,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-04-06 08:46:57,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 317. [2022-04-06 08:46:57,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.608974358974359) internal successors, (502), 312 states have internal predecessors, (502), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:57,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 506 transitions. [2022-04-06 08:46:57,603 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 506 transitions. Word has length 109 [2022-04-06 08:46:57,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:46:57,604 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 506 transitions. [2022-04-06 08:46:57,604 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:57,604 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 506 transitions. [2022-04-06 08:46:57,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-04-06 08:46:57,605 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:46:57,605 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-06 08:46:57,605 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 08:46:57,605 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:46:57,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:46:57,606 INFO L85 PathProgramCache]: Analyzing trace with hash -733726518, now seen corresponding path program 1 times [2022-04-06 08:46:57,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:46:57,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005719736] [2022-04-06 08:46:57,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:46:57,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:46:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:57,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:46:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:46:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-04-06 08:46:57,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:46:57,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005719736] [2022-04-06 08:46:57,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005719736] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:46:57,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:46:57,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:46:57,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964058961] [2022-04-06 08:46:57,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:46:57,725 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:46:57,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:46:57,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:46:57,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:46:57,726 INFO L87 Difference]: Start difference. First operand 317 states and 506 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:46:58,750 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 [] [2022-04-06 08:47:00,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:02,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:03,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:03,165 INFO L93 Difference]: Finished difference Result 346 states and 545 transitions. [2022-04-06 08:47:03,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:47:03,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-04-06 08:47:03,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:03,167 INFO L225 Difference]: With dead ends: 346 [2022-04-06 08:47:03,167 INFO L226 Difference]: Without dead ends: 346 [2022-04-06 08:47:03,168 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:47:03,168 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 19 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:03,168 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 556 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 08:47:03,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-04-06 08:47:03,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 333. [2022-04-06 08:47:03,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.600609756097561) internal successors, (525), 328 states have internal predecessors, (525), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:03,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 529 transitions. [2022-04-06 08:47:03,175 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 529 transitions. Word has length 114 [2022-04-06 08:47:03,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:03,175 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 529 transitions. [2022-04-06 08:47:03,176 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:03,176 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 529 transitions. [2022-04-06 08:47:03,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-04-06 08:47:03,177 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:03,177 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-06 08:47:03,177 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 08:47:03,177 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:03,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:03,178 INFO L85 PathProgramCache]: Analyzing trace with hash -935680694, now seen corresponding path program 1 times [2022-04-06 08:47:03,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:03,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716435165] [2022-04-06 08:47:03,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:03,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:03,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:03,292 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-04-06 08:47:03,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:03,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716435165] [2022-04-06 08:47:03,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716435165] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:03,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:03,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:47:03,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685809780] [2022-04-06 08:47:03,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:03,293 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:47:03,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:03,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:47:03,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:47:03,294 INFO L87 Difference]: Start difference. First operand 333 states and 529 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) [2022-04-06 08:47:04,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:06,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:08,771 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 [] [2022-04-06 08:47:09,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:09,304 INFO L93 Difference]: Finished difference Result 408 states and 628 transitions. [2022-04-06 08:47:09,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:47:09,304 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 114 [2022-04-06 08:47:09,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:09,306 INFO L225 Difference]: With dead ends: 408 [2022-04-06 08:47:09,306 INFO L226 Difference]: Without dead ends: 408 [2022-04-06 08:47:09,306 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:47:09,306 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 136 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:09,307 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 332 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 08:47:09,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-04-06 08:47:09,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 333. [2022-04-06 08:47:09,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.5853658536585367) internal successors, (520), 328 states have internal predecessors, (520), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 524 transitions. [2022-04-06 08:47:09,313 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 524 transitions. Word has length 114 [2022-04-06 08:47:09,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:09,314 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 524 transitions. [2022-04-06 08:47:09,314 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:09,314 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 524 transitions. [2022-04-06 08:47:09,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-04-06 08:47:09,315 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:09,315 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-06 08:47:09,315 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 08:47:09,315 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:09,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:09,316 INFO L85 PathProgramCache]: Analyzing trace with hash 830257820, now seen corresponding path program 1 times [2022-04-06 08:47:09,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:09,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501668091] [2022-04-06 08:47:09,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:09,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:09,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:09,433 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-04-06 08:47:09,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:09,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501668091] [2022-04-06 08:47:09,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501668091] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:09,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:09,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 08:47:09,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143265739] [2022-04-06 08:47:09,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:09,434 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 08:47:09,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:09,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 08:47:09,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:47:09,435 INFO L87 Difference]: Start difference. First operand 333 states and 524 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:12,453 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 [] [2022-04-06 08:47:13,568 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 [] [2022-04-06 08:47:14,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:14,910 INFO L93 Difference]: Finished difference Result 342 states and 535 transitions. [2022-04-06 08:47:14,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 08:47:14,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-04-06 08:47:14,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:14,912 INFO L225 Difference]: With dead ends: 342 [2022-04-06 08:47:14,912 INFO L226 Difference]: Without dead ends: 342 [2022-04-06 08:47:14,912 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-06 08:47:14,913 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 3 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:14,913 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 617 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 08:47:14,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-04-06 08:47:14,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-04-06 08:47:14,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.57566765578635) internal successors, (531), 337 states have internal predecessors, (531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:14,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 535 transitions. [2022-04-06 08:47:14,919 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 535 transitions. Word has length 115 [2022-04-06 08:47:14,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:14,919 INFO L478 AbstractCegarLoop]: Abstraction has 342 states and 535 transitions. [2022-04-06 08:47:14,919 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:14,919 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 535 transitions. [2022-04-06 08:47:14,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-04-06 08:47:14,920 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:14,920 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-06 08:47:14,920 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-06 08:47:14,920 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:14,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:14,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1810119759, now seen corresponding path program 1 times [2022-04-06 08:47:14,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:14,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251027464] [2022-04-06 08:47:14,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:14,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:15,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:15,036 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-04-06 08:47:15,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:15,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251027464] [2022-04-06 08:47:15,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251027464] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:15,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:15,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:47:15,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584614030] [2022-04-06 08:47:15,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:15,038 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:47:15,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:15,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:47:15,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:47:15,039 INFO L87 Difference]: Start difference. First operand 342 states and 535 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) [2022-04-06 08:47:17,630 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 [] [2022-04-06 08:47:18,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:18,613 INFO L93 Difference]: Finished difference Result 359 states and 556 transitions. [2022-04-06 08:47:18,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:47:18,613 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 116 [2022-04-06 08:47:18,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:18,614 INFO L225 Difference]: With dead ends: 359 [2022-04-06 08:47:18,614 INFO L226 Difference]: Without dead ends: 359 [2022-04-06 08:47:18,615 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:47:18,615 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 35 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:18,615 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 499 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-06 08:47:18,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-04-06 08:47:18,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 342. [2022-04-06 08:47:18,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.572700296735905) internal successors, (530), 337 states have internal predecessors, (530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:18,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 534 transitions. [2022-04-06 08:47:18,621 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 534 transitions. Word has length 116 [2022-04-06 08:47:18,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:18,622 INFO L478 AbstractCegarLoop]: Abstraction has 342 states and 534 transitions. [2022-04-06 08:47:18,622 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:18,622 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 534 transitions. [2022-04-06 08:47:18,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-06 08:47:18,623 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:18,623 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:47:18,623 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-06 08:47:18,624 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:18,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:18,624 INFO L85 PathProgramCache]: Analyzing trace with hash 713638299, now seen corresponding path program 1 times [2022-04-06 08:47:18,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:18,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821178040] [2022-04-06 08:47:18,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:18,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:18,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:18,733 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-06 08:47:18,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:18,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821178040] [2022-04-06 08:47:18,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821178040] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:18,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:18,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:47:18,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899629824] [2022-04-06 08:47:18,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:18,734 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:47:18,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:18,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:47:18,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:47:18,735 INFO L87 Difference]: Start difference. First operand 342 states and 534 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:19,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:21,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:22,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:22,850 INFO L93 Difference]: Finished difference Result 349 states and 543 transitions. [2022-04-06 08:47:22,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:47:22,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-06 08:47:22,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:22,851 INFO L225 Difference]: With dead ends: 349 [2022-04-06 08:47:22,851 INFO L226 Difference]: Without dead ends: 349 [2022-04-06 08:47:22,852 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:47:22,852 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 30 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:22,852 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 513 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-04-06 08:47:22,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-04-06 08:47:22,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 342. [2022-04-06 08:47:22,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.5697329376854599) internal successors, (529), 337 states have internal predecessors, (529), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:22,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 533 transitions. [2022-04-06 08:47:22,858 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 533 transitions. Word has length 122 [2022-04-06 08:47:22,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:22,858 INFO L478 AbstractCegarLoop]: Abstraction has 342 states and 533 transitions. [2022-04-06 08:47:22,858 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:22,859 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 533 transitions. [2022-04-06 08:47:22,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-06 08:47:22,860 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:22,860 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:47:22,860 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-06 08:47:22,860 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:22,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:22,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1104389438, now seen corresponding path program 1 times [2022-04-06 08:47:22,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:22,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482623185] [2022-04-06 08:47:22,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:22,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:22,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:22,962 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-04-06 08:47:22,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:22,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482623185] [2022-04-06 08:47:22,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482623185] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:22,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:22,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:47:22,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561902737] [2022-04-06 08:47:22,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:22,964 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:47:22,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:22,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:47:22,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:47:22,965 INFO L87 Difference]: Start difference. First operand 342 states and 533 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:24,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:26,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:27,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:27,720 INFO L93 Difference]: Finished difference Result 369 states and 568 transitions. [2022-04-06 08:47:27,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:47:27,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-06 08:47:27,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:27,722 INFO L225 Difference]: With dead ends: 369 [2022-04-06 08:47:27,722 INFO L226 Difference]: Without dead ends: 369 [2022-04-06 08:47:27,722 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:47:27,723 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:27,723 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 413 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 08:47:27,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-04-06 08:47:27,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2022-04-06 08:47:27,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 364 states have (on average 1.5494505494505495) internal successors, (564), 364 states have internal predecessors, (564), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:27,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 568 transitions. [2022-04-06 08:47:27,729 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 568 transitions. Word has length 122 [2022-04-06 08:47:27,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:27,729 INFO L478 AbstractCegarLoop]: Abstraction has 369 states and 568 transitions. [2022-04-06 08:47:27,729 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:27,729 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 568 transitions. [2022-04-06 08:47:27,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-06 08:47:27,730 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:27,730 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:47:27,730 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-06 08:47:27,731 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:27,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:27,731 INFO L85 PathProgramCache]: Analyzing trace with hash 2081762659, now seen corresponding path program 1 times [2022-04-06 08:47:27,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:27,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921382688] [2022-04-06 08:47:27,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:27,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:27,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:27,849 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:47:27,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:27,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921382688] [2022-04-06 08:47:27,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921382688] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:27,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:27,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:47:27,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161483178] [2022-04-06 08:47:27,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:27,850 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:47:27,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:27,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:47:27,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:47:27,851 INFO L87 Difference]: Start difference. First operand 369 states and 568 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:29,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:31,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:33,321 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 [] [2022-04-06 08:47:33,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:33,769 INFO L93 Difference]: Finished difference Result 494 states and 750 transitions. [2022-04-06 08:47:33,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:47:33,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-06 08:47:33,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:33,771 INFO L225 Difference]: With dead ends: 494 [2022-04-06 08:47:33,771 INFO L226 Difference]: Without dead ends: 494 [2022-04-06 08:47:33,772 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:47:33,772 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 116 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:33,772 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 332 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 08:47:33,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-04-06 08:47:33,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 406. [2022-04-06 08:47:33,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 401 states have (on average 1.5610972568578554) internal successors, (626), 401 states have internal predecessors, (626), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:33,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 630 transitions. [2022-04-06 08:47:33,779 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 630 transitions. Word has length 122 [2022-04-06 08:47:33,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:33,779 INFO L478 AbstractCegarLoop]: Abstraction has 406 states and 630 transitions. [2022-04-06 08:47:33,779 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:33,779 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 630 transitions. [2022-04-06 08:47:33,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-06 08:47:33,781 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:33,781 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:47:33,781 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-06 08:47:33,781 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:33,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:33,781 INFO L85 PathProgramCache]: Analyzing trace with hash 445754168, now seen corresponding path program 1 times [2022-04-06 08:47:33,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:33,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879086787] [2022-04-06 08:47:33,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:33,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:33,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:33,898 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:47:33,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:33,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879086787] [2022-04-06 08:47:33,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879086787] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:33,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:33,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:47:33,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104489842] [2022-04-06 08:47:33,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:33,900 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:47:33,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:33,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:47:33,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:47:33,900 INFO L87 Difference]: Start difference. First operand 406 states and 630 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:35,252 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 [] [2022-04-06 08:47:37,275 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 [] [2022-04-06 08:47:38,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:38,104 INFO L93 Difference]: Finished difference Result 491 states and 744 transitions. [2022-04-06 08:47:38,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:47:38,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-06 08:47:38,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:38,105 INFO L225 Difference]: With dead ends: 491 [2022-04-06 08:47:38,106 INFO L226 Difference]: Without dead ends: 491 [2022-04-06 08:47:38,106 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:47:38,106 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 115 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:38,106 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 352 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-04-06 08:47:38,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-04-06 08:47:38,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 406. [2022-04-06 08:47:38,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 401 states have (on average 1.5561097256857854) internal successors, (624), 401 states have internal predecessors, (624), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:38,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 628 transitions. [2022-04-06 08:47:38,135 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 628 transitions. Word has length 123 [2022-04-06 08:47:38,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:38,136 INFO L478 AbstractCegarLoop]: Abstraction has 406 states and 628 transitions. [2022-04-06 08:47:38,136 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:38,136 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 628 transitions. [2022-04-06 08:47:38,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-04-06 08:47:38,137 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:38,137 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:47:38,137 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-06 08:47:38,137 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:38,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:38,138 INFO L85 PathProgramCache]: Analyzing trace with hash -653488844, now seen corresponding path program 1 times [2022-04-06 08:47:38,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:38,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242710280] [2022-04-06 08:47:38,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:38,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:38,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:38,268 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:47:38,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:38,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242710280] [2022-04-06 08:47:38,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242710280] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:38,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:38,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:47:38,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611959226] [2022-04-06 08:47:38,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:38,269 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:47:38,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:38,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:47:38,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:47:38,270 INFO L87 Difference]: Start difference. First operand 406 states and 628 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) [2022-04-06 08:47:40,711 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 [] [2022-04-06 08:47:42,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:42,351 INFO L93 Difference]: Finished difference Result 491 states and 739 transitions. [2022-04-06 08:47:42,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:47:42,351 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 130 [2022-04-06 08:47:42,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:42,353 INFO L225 Difference]: With dead ends: 491 [2022-04-06 08:47:42,353 INFO L226 Difference]: Without dead ends: 491 [2022-04-06 08:47:42,353 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:47:42,353 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 136 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:42,354 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 352 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-04-06 08:47:42,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-04-06 08:47:42,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 406. [2022-04-06 08:47:42,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 401 states have (on average 1.5436408977556109) internal successors, (619), 401 states have internal predecessors, (619), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:42,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 623 transitions. [2022-04-06 08:47:42,360 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 623 transitions. Word has length 130 [2022-04-06 08:47:42,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:42,360 INFO L478 AbstractCegarLoop]: Abstraction has 406 states and 623 transitions. [2022-04-06 08:47:42,361 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:42,361 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 623 transitions. [2022-04-06 08:47:42,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-06 08:47:42,362 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:42,362 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:47:42,362 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-06 08:47:42,362 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:42,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:42,362 INFO L85 PathProgramCache]: Analyzing trace with hash 730265123, now seen corresponding path program 1 times [2022-04-06 08:47:42,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:42,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13062830] [2022-04-06 08:47:42,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:42,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:42,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:42,491 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:47:42,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:42,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13062830] [2022-04-06 08:47:42,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13062830] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:42,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:42,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:47:42,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142356435] [2022-04-06 08:47:42,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:42,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:47:42,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:42,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:47:42,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:47:42,493 INFO L87 Difference]: Start difference. First operand 406 states and 623 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:44,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:46,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:47,900 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 [] [2022-04-06 08:47:48,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:48,305 INFO L93 Difference]: Finished difference Result 507 states and 769 transitions. [2022-04-06 08:47:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:47:48,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-06 08:47:48,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:48,307 INFO L225 Difference]: With dead ends: 507 [2022-04-06 08:47:48,307 INFO L226 Difference]: Without dead ends: 507 [2022-04-06 08:47:48,307 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:47:48,308 INFO L913 BasicCegarLoop]: 176 mSDtfsCounter, 96 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:48,308 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 461 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:47:48,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-04-06 08:47:48,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 425. [2022-04-06 08:47:48,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 420 states have (on average 1.5357142857142858) internal successors, (645), 420 states have internal predecessors, (645), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:48,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 649 transitions. [2022-04-06 08:47:48,314 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 649 transitions. Word has length 131 [2022-04-06 08:47:48,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:48,314 INFO L478 AbstractCegarLoop]: Abstraction has 425 states and 649 transitions. [2022-04-06 08:47:48,315 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:48,315 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 649 transitions. [2022-04-06 08:47:48,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-06 08:47:48,316 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:48,316 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:47:48,316 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-06 08:47:48,316 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:48,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:48,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1621563087, now seen corresponding path program 1 times [2022-04-06 08:47:48,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:48,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656924603] [2022-04-06 08:47:48,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:48,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:48,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:48,455 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:47:48,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:48,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656924603] [2022-04-06 08:47:48,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656924603] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:48,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:48,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:47:48,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887390369] [2022-04-06 08:47:48,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:48,456 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:47:48,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:48,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:47:48,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:47:48,457 INFO L87 Difference]: Start difference. First operand 425 states and 649 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:50,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:52,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:54,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:47:55,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:55,088 INFO L93 Difference]: Finished difference Result 550 states and 829 transitions. [2022-04-06 08:47:55,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:47:55,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-06 08:47:55,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:55,090 INFO L225 Difference]: With dead ends: 550 [2022-04-06 08:47:55,090 INFO L226 Difference]: Without dead ends: 550 [2022-04-06 08:47:55,090 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:47:55,091 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 108 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:55,091 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 353 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-04-06 08:47:55,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-04-06 08:47:55,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 468. [2022-04-06 08:47:55,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 463 states have (on average 1.5442764578833694) internal successors, (715), 463 states have internal predecessors, (715), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:55,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 719 transitions. [2022-04-06 08:47:55,097 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 719 transitions. Word has length 131 [2022-04-06 08:47:55,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:55,098 INFO L478 AbstractCegarLoop]: Abstraction has 468 states and 719 transitions. [2022-04-06 08:47:55,098 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:55,098 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 719 transitions. [2022-04-06 08:47:55,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-06 08:47:55,099 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:55,099 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:47:55,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-06 08:47:55,099 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:55,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:55,100 INFO L85 PathProgramCache]: Analyzing trace with hash -754790428, now seen corresponding path program 1 times [2022-04-06 08:47:55,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:55,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736134751] [2022-04-06 08:47:55,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:55,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:55,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:55,223 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:47:55,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:55,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736134751] [2022-04-06 08:47:55,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736134751] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:55,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:55,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:47:55,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731130857] [2022-04-06 08:47:55,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:55,224 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:47:55,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:55,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:47:55,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:47:55,225 INFO L87 Difference]: Start difference. First operand 468 states and 719 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:57,239 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 [] [2022-04-06 08:47:57,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:47:57,708 INFO L93 Difference]: Finished difference Result 553 states and 829 transitions. [2022-04-06 08:47:57,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:47:57,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-06 08:47:57,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:47:57,710 INFO L225 Difference]: With dead ends: 553 [2022-04-06 08:47:57,710 INFO L226 Difference]: Without dead ends: 553 [2022-04-06 08:47:57,711 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:47:57,711 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 135 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:47:57,711 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 332 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 08:47:57,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-04-06 08:47:57,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 449. [2022-04-06 08:47:57,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 444 states have (on average 1.5382882882882882) internal successors, (683), 444 states have internal predecessors, (683), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:57,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 687 transitions. [2022-04-06 08:47:57,718 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 687 transitions. Word has length 131 [2022-04-06 08:47:57,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:47:57,718 INFO L478 AbstractCegarLoop]: Abstraction has 449 states and 687 transitions. [2022-04-06 08:47:57,718 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:57,718 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 687 transitions. [2022-04-06 08:47:57,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-06 08:47:57,719 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:47:57,719 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:47:57,719 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-06 08:47:57,719 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:47:57,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:47:57,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1699130074, now seen corresponding path program 1 times [2022-04-06 08:47:57,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:47:57,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002048175] [2022-04-06 08:47:57,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:47:57,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:47:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:57,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:47:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:47:57,847 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:47:57,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:47:57,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002048175] [2022-04-06 08:47:57,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002048175] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:47:57,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:47:57,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:47:57,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519263254] [2022-04-06 08:47:57,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:47:57,848 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:47:57,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:47:57,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:47:57,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:47:57,849 INFO L87 Difference]: Start difference. First operand 449 states and 687 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:47:59,810 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 [] [2022-04-06 08:48:01,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:04,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:04,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:48:04,747 INFO L93 Difference]: Finished difference Result 543 states and 821 transitions. [2022-04-06 08:48:04,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:48:04,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-06 08:48:04,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:48:04,753 INFO L225 Difference]: With dead ends: 543 [2022-04-06 08:48:04,753 INFO L226 Difference]: Without dead ends: 543 [2022-04-06 08:48:04,753 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:48:04,754 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 61 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:48:04,755 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 469 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-04-06 08:48:04,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-04-06 08:48:04,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 492. [2022-04-06 08:48:04,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 487 states have (on average 1.540041067761807) internal successors, (750), 487 states have internal predecessors, (750), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:04,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 754 transitions. [2022-04-06 08:48:04,761 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 754 transitions. Word has length 132 [2022-04-06 08:48:04,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:48:04,762 INFO L478 AbstractCegarLoop]: Abstraction has 492 states and 754 transitions. [2022-04-06 08:48:04,762 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:04,762 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 754 transitions. [2022-04-06 08:48:04,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-06 08:48:04,763 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:48:04,763 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:48:04,763 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-06 08:48:04,763 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:48:04,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:48:04,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1387919047, now seen corresponding path program 1 times [2022-04-06 08:48:04,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:48:04,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409918469] [2022-04-06 08:48:04,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:48:04,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:48:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:04,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:48:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:48:04,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:48:04,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409918469] [2022-04-06 08:48:04,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409918469] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:48:04,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:48:04,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:48:04,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525469994] [2022-04-06 08:48:04,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:48:04,885 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:48:04,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:48:04,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:48:04,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:48:04,886 INFO L87 Difference]: Start difference. First operand 492 states and 754 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:08,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:10,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:10,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:48:10,496 INFO L93 Difference]: Finished difference Result 577 states and 869 transitions. [2022-04-06 08:48:10,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:48:10,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-06 08:48:10,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:48:10,498 INFO L225 Difference]: With dead ends: 577 [2022-04-06 08:48:10,499 INFO L226 Difference]: Without dead ends: 575 [2022-04-06 08:48:10,499 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:48:10,499 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 108 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:48:10,499 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 352 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 479 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 08:48:10,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-04-06 08:48:10,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 494. [2022-04-06 08:48:10,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 489 states have (on average 1.539877300613497) internal successors, (753), 489 states have internal predecessors, (753), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:10,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 757 transitions. [2022-04-06 08:48:10,507 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 757 transitions. Word has length 132 [2022-04-06 08:48:10,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:48:10,507 INFO L478 AbstractCegarLoop]: Abstraction has 494 states and 757 transitions. [2022-04-06 08:48:10,507 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:10,507 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 757 transitions. [2022-04-06 08:48:10,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-06 08:48:10,508 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:48:10,508 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:48:10,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-06 08:48:10,509 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:48:10,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:48:10,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1680520422, now seen corresponding path program 1 times [2022-04-06 08:48:10,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:48:10,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370735783] [2022-04-06 08:48:10,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:48:10,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:48:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:48:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-06 08:48:10,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:48:10,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370735783] [2022-04-06 08:48:10,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370735783] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:48:10,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:48:10,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:48:10,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706344533] [2022-04-06 08:48:10,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:48:10,619 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:48:10,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:48:10,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:48:10,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:48:10,619 INFO L87 Difference]: Start difference. First operand 494 states and 757 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:12,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:14,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:14,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:48:14,875 INFO L93 Difference]: Finished difference Result 535 states and 811 transitions. [2022-04-06 08:48:14,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:48:14,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-06 08:48:14,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:48:14,876 INFO L225 Difference]: With dead ends: 535 [2022-04-06 08:48:14,876 INFO L226 Difference]: Without dead ends: 535 [2022-04-06 08:48:14,877 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:48:14,877 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 90 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:48:14,877 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 493 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-04-06 08:48:14,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-04-06 08:48:14,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 494. [2022-04-06 08:48:14,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 489 states have (on average 1.5378323108384457) internal successors, (752), 489 states have internal predecessors, (752), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:14,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 756 transitions. [2022-04-06 08:48:14,884 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 756 transitions. Word has length 144 [2022-04-06 08:48:14,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:48:14,885 INFO L478 AbstractCegarLoop]: Abstraction has 494 states and 756 transitions. [2022-04-06 08:48:14,885 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:14,885 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 756 transitions. [2022-04-06 08:48:14,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-06 08:48:14,886 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:48:14,886 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:48:14,886 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-06 08:48:14,886 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:48:14,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:48:14,887 INFO L85 PathProgramCache]: Analyzing trace with hash 780500646, now seen corresponding path program 1 times [2022-04-06 08:48:14,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:48:14,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349150685] [2022-04-06 08:48:14,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:48:14,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:48:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:15,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:48:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:48:15,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:48:15,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349150685] [2022-04-06 08:48:15,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349150685] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:48:15,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:48:15,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:48:15,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756263233] [2022-04-06 08:48:15,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:48:15,009 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:48:15,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:48:15,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:48:15,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:48:15,010 INFO L87 Difference]: Start difference. First operand 494 states and 756 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:16,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:17,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:19,424 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 [] [2022-04-06 08:48:20,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:48:20,610 INFO L93 Difference]: Finished difference Result 617 states and 925 transitions. [2022-04-06 08:48:20,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:48:20,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-06 08:48:20,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:48:20,613 INFO L225 Difference]: With dead ends: 617 [2022-04-06 08:48:20,613 INFO L226 Difference]: Without dead ends: 617 [2022-04-06 08:48:20,613 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:48:20,613 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 119 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:48:20,613 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 354 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 08:48:20,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-04-06 08:48:20,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 524. [2022-04-06 08:48:20,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 519 states have (on average 1.5298651252408477) internal successors, (794), 519 states have internal predecessors, (794), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:20,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 798 transitions. [2022-04-06 08:48:20,620 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 798 transitions. Word has length 144 [2022-04-06 08:48:20,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:48:20,621 INFO L478 AbstractCegarLoop]: Abstraction has 524 states and 798 transitions. [2022-04-06 08:48:20,621 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:20,621 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 798 transitions. [2022-04-06 08:48:20,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-06 08:48:20,622 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:48:20,622 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:48:20,622 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-06 08:48:20,622 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:48:20,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:48:20,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2086081273, now seen corresponding path program 1 times [2022-04-06 08:48:20,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:48:20,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470169146] [2022-04-06 08:48:20,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:48:20,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:48:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:20,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:48:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:20,757 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-06 08:48:20,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:48:20,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470169146] [2022-04-06 08:48:20,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470169146] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:48:20,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:48:20,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:48:20,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541013546] [2022-04-06 08:48:20,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:48:20,758 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:48:20,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:48:20,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:48:20,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:48:20,759 INFO L87 Difference]: Start difference. First operand 524 states and 798 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:22,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:23,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:48:23,694 INFO L93 Difference]: Finished difference Result 607 states and 918 transitions. [2022-04-06 08:48:23,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:48:23,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-06 08:48:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:48:23,696 INFO L225 Difference]: With dead ends: 607 [2022-04-06 08:48:23,696 INFO L226 Difference]: Without dead ends: 607 [2022-04-06 08:48:23,697 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:48:23,697 INFO L913 BasicCegarLoop]: 258 mSDtfsCounter, 91 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:48:23,697 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 625 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-06 08:48:23,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-04-06 08:48:23,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 535. [2022-04-06 08:48:23,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.528301886792453) internal successors, (810), 530 states have internal predecessors, (810), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:23,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 814 transitions. [2022-04-06 08:48:23,705 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 814 transitions. Word has length 144 [2022-04-06 08:48:23,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:48:23,705 INFO L478 AbstractCegarLoop]: Abstraction has 535 states and 814 transitions. [2022-04-06 08:48:23,705 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 814 transitions. [2022-04-06 08:48:23,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 08:48:23,707 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:48:23,707 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:48:23,707 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-06 08:48:23,707 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:48:23,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:48:23,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1870256407, now seen corresponding path program 1 times [2022-04-06 08:48:23,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:48:23,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804742884] [2022-04-06 08:48:23,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:48:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:48:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:23,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:48:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:23,843 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-06 08:48:23,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:48:23,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804742884] [2022-04-06 08:48:23,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804742884] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:48:23,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:48:23,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:48:23,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805941003] [2022-04-06 08:48:23,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:48:23,844 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:48:23,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:48:23,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:48:23,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:48:23,845 INFO L87 Difference]: Start difference. First operand 535 states and 814 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:26,007 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 [] [2022-04-06 08:48:26,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:48:26,948 INFO L93 Difference]: Finished difference Result 606 states and 901 transitions. [2022-04-06 08:48:26,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:48:26,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-06 08:48:26,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:48:26,950 INFO L225 Difference]: With dead ends: 606 [2022-04-06 08:48:26,950 INFO L226 Difference]: Without dead ends: 606 [2022-04-06 08:48:26,950 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:48:26,951 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 135 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:48:26,951 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 356 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-04-06 08:48:26,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-04-06 08:48:26,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 535. [2022-04-06 08:48:26,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.5113207547169811) internal successors, (801), 530 states have internal predecessors, (801), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:26,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 805 transitions. [2022-04-06 08:48:26,957 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 805 transitions. Word has length 145 [2022-04-06 08:48:26,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:48:26,958 INFO L478 AbstractCegarLoop]: Abstraction has 535 states and 805 transitions. [2022-04-06 08:48:26,958 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:26,958 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 805 transitions. [2022-04-06 08:48:26,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 08:48:26,959 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:48:26,959 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:48:26,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-06 08:48:26,960 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:48:26,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:48:26,960 INFO L85 PathProgramCache]: Analyzing trace with hash -390187374, now seen corresponding path program 1 times [2022-04-06 08:48:26,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:48:26,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065248067] [2022-04-06 08:48:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:48:26,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:48:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:27,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:48:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:27,076 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:48:27,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:48:27,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065248067] [2022-04-06 08:48:27,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065248067] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:48:27,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:48:27,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:48:27,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479200474] [2022-04-06 08:48:27,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:48:27,077 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:48:27,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:48:27,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:48:27,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:48:27,078 INFO L87 Difference]: Start difference. First operand 535 states and 805 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:29,530 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 [] [2022-04-06 08:48:31,555 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 [] [2022-04-06 08:48:32,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:48:32,520 INFO L93 Difference]: Finished difference Result 564 states and 844 transitions. [2022-04-06 08:48:32,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:48:32,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-06 08:48:32,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:48:32,522 INFO L225 Difference]: With dead ends: 564 [2022-04-06 08:48:32,522 INFO L226 Difference]: Without dead ends: 564 [2022-04-06 08:48:32,523 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:48:32,523 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 59 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:48:32,523 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 489 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 08:48:32,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-04-06 08:48:32,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 535. [2022-04-06 08:48:32,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.509433962264151) internal successors, (800), 530 states have internal predecessors, (800), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:32,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 804 transitions. [2022-04-06 08:48:32,532 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 804 transitions. Word has length 145 [2022-04-06 08:48:32,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:48:32,532 INFO L478 AbstractCegarLoop]: Abstraction has 535 states and 804 transitions. [2022-04-06 08:48:32,533 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:32,533 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 804 transitions. [2022-04-06 08:48:32,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 08:48:32,534 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:48:32,534 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:48:32,534 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-06 08:48:32,534 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:48:32,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:48:32,535 INFO L85 PathProgramCache]: Analyzing trace with hash 410348179, now seen corresponding path program 1 times [2022-04-06 08:48:32,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:48:32,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272419476] [2022-04-06 08:48:32,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:48:32,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:48:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:32,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:48:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:32,672 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-04-06 08:48:32,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:48:32,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272419476] [2022-04-06 08:48:32,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272419476] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:48:32,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:48:32,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:48:32,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530211255] [2022-04-06 08:48:32,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:48:32,673 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:48:32,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:48:32,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:48:32,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:48:32,674 INFO L87 Difference]: Start difference. First operand 535 states and 804 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:34,683 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 [] [2022-04-06 08:48:35,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:48:35,024 INFO L93 Difference]: Finished difference Result 560 states and 838 transitions. [2022-04-06 08:48:35,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:48:35,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-06 08:48:35,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:48:35,026 INFO L225 Difference]: With dead ends: 560 [2022-04-06 08:48:35,026 INFO L226 Difference]: Without dead ends: 560 [2022-04-06 08:48:35,026 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:48:35,026 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 25 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:48:35,026 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 571 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 417 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:48:35,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-04-06 08:48:35,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 548. [2022-04-06 08:48:35,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 543 states have (on average 1.5064456721915285) internal successors, (818), 543 states have internal predecessors, (818), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 822 transitions. [2022-04-06 08:48:35,035 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 822 transitions. Word has length 145 [2022-04-06 08:48:35,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:48:35,035 INFO L478 AbstractCegarLoop]: Abstraction has 548 states and 822 transitions. [2022-04-06 08:48:35,035 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:35,035 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 822 transitions. [2022-04-06 08:48:35,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-06 08:48:35,036 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:48:35,037 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-04-06 08:48:35,037 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-06 08:48:35,037 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:48:35,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:48:35,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1815015926, now seen corresponding path program 1 times [2022-04-06 08:48:35,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:48:35,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49748365] [2022-04-06 08:48:35,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:48:35,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:48:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:35,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:48:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:35,156 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:48:35,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:48:35,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49748365] [2022-04-06 08:48:35,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49748365] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:48:35,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:48:35,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:48:35,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883119779] [2022-04-06 08:48:35,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:48:35,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:48:35,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:48:35,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:48:35,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:48:35,158 INFO L87 Difference]: Start difference. First operand 548 states and 822 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:37,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:39,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:48:39,251 INFO L93 Difference]: Finished difference Result 661 states and 975 transitions. [2022-04-06 08:48:39,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:48:39,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-06 08:48:39,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:48:39,253 INFO L225 Difference]: With dead ends: 661 [2022-04-06 08:48:39,253 INFO L226 Difference]: Without dead ends: 661 [2022-04-06 08:48:39,254 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:48:39,254 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 119 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:48:39,254 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 356 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-04-06 08:48:39,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-04-06 08:48:39,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 576. [2022-04-06 08:48:39,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.4956217162872154) internal successors, (854), 571 states have internal predecessors, (854), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 858 transitions. [2022-04-06 08:48:39,261 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 858 transitions. Word has length 147 [2022-04-06 08:48:39,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:48:39,262 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 858 transitions. [2022-04-06 08:48:39,262 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:39,262 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 858 transitions. [2022-04-06 08:48:39,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-06 08:48:39,263 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:48:39,263 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:48:39,263 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-06 08:48:39,263 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:48:39,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:48:39,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1959841828, now seen corresponding path program 1 times [2022-04-06 08:48:39,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:48:39,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440464117] [2022-04-06 08:48:39,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:48:39,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:48:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:48:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:39,379 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:48:39,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:48:39,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440464117] [2022-04-06 08:48:39,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440464117] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:48:39,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:48:39,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:48:39,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568935676] [2022-04-06 08:48:39,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:48:39,380 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:48:39,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:48:39,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:48:39,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:48:39,380 INFO L87 Difference]: Start difference. First operand 576 states and 858 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:41,005 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 [] [2022-04-06 08:48:42,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:44,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:45,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:48:45,123 INFO L93 Difference]: Finished difference Result 647 states and 946 transitions. [2022-04-06 08:48:45,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:48:45,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-06 08:48:45,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:48:45,125 INFO L225 Difference]: With dead ends: 647 [2022-04-06 08:48:45,125 INFO L226 Difference]: Without dead ends: 647 [2022-04-06 08:48:45,125 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:48:45,126 INFO L913 BasicCegarLoop]: 116 mSDtfsCounter, 118 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:48:45,126 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 336 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 08:48:45,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-04-06 08:48:45,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 576. [2022-04-06 08:48:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.4816112084063047) internal successors, (846), 571 states have internal predecessors, (846), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:45,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 850 transitions. [2022-04-06 08:48:45,146 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 850 transitions. Word has length 148 [2022-04-06 08:48:45,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:48:45,146 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 850 transitions. [2022-04-06 08:48:45,146 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:45,146 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 850 transitions. [2022-04-06 08:48:45,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-04-06 08:48:45,147 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:48:45,147 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:48:45,148 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-06 08:48:45,148 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:48:45,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:48:45,148 INFO L85 PathProgramCache]: Analyzing trace with hash 180398438, now seen corresponding path program 1 times [2022-04-06 08:48:45,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:48:45,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973629810] [2022-04-06 08:48:45,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:48:45,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:48:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:45,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:48:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-06 08:48:45,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:48:45,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973629810] [2022-04-06 08:48:45,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973629810] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:48:45,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:48:45,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:48:45,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627045622] [2022-04-06 08:48:45,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:48:45,266 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:48:45,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:48:45,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:48:45,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:48:45,267 INFO L87 Difference]: Start difference. First operand 576 states and 850 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:46,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:48,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:50,956 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 [] [2022-04-06 08:48:51,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:48:51,364 INFO L93 Difference]: Finished difference Result 597 states and 876 transitions. [2022-04-06 08:48:51,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:48:51,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-04-06 08:48:51,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:48:51,366 INFO L225 Difference]: With dead ends: 597 [2022-04-06 08:48:51,366 INFO L226 Difference]: Without dead ends: 597 [2022-04-06 08:48:51,366 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:48:51,366 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 43 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:48:51,367 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 507 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 455 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-04-06 08:48:51,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-04-06 08:48:51,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 576. [2022-04-06 08:48:51,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.479859894921191) internal successors, (845), 571 states have internal predecessors, (845), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:51,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 849 transitions. [2022-04-06 08:48:51,377 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 849 transitions. Word has length 154 [2022-04-06 08:48:51,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:48:51,377 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 849 transitions. [2022-04-06 08:48:51,378 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:51,378 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 849 transitions. [2022-04-06 08:48:51,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-06 08:48:51,379 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:48:51,379 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:48:51,379 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-06 08:48:51,379 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:48:51,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:48:51,379 INFO L85 PathProgramCache]: Analyzing trace with hash -792787074, now seen corresponding path program 1 times [2022-04-06 08:48:51,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:48:51,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871306686] [2022-04-06 08:48:51,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:48:51,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:48:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:51,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:48:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:51,525 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-06 08:48:51,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:48:51,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871306686] [2022-04-06 08:48:51,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871306686] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:48:51,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:48:51,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:48:51,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478276511] [2022-04-06 08:48:51,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:48:51,526 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:48:51,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:48:51,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:48:51,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:48:51,527 INFO L87 Difference]: Start difference. First operand 576 states and 849 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:53,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:48:55,060 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 [] [2022-04-06 08:48:56,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:48:56,333 INFO L93 Difference]: Finished difference Result 595 states and 873 transitions. [2022-04-06 08:48:56,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:48:56,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-04-06 08:48:56,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:48:56,335 INFO L225 Difference]: With dead ends: 595 [2022-04-06 08:48:56,335 INFO L226 Difference]: Without dead ends: 595 [2022-04-06 08:48:56,335 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:48:56,339 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 40 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:48:56,340 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 509 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-04-06 08:48:56,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-04-06 08:48:56,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 576. [2022-04-06 08:48:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.478108581436077) internal successors, (844), 571 states have internal predecessors, (844), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:56,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 848 transitions. [2022-04-06 08:48:56,346 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 848 transitions. Word has length 155 [2022-04-06 08:48:56,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:48:56,346 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 848 transitions. [2022-04-06 08:48:56,346 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:56,346 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 848 transitions. [2022-04-06 08:48:56,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-04-06 08:48:56,347 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:48:56,347 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:48:56,348 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-06 08:48:56,348 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:48:56,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:48:56,348 INFO L85 PathProgramCache]: Analyzing trace with hash -159357064, now seen corresponding path program 1 times [2022-04-06 08:48:56,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:48:56,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897019381] [2022-04-06 08:48:56,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:48:56,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:48:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:56,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:48:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:48:56,475 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-04-06 08:48:56,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:48:56,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897019381] [2022-04-06 08:48:56,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897019381] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:48:56,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:48:56,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:48:56,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68786705] [2022-04-06 08:48:56,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:48:56,476 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:48:56,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:48:56,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:48:56,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:48:56,477 INFO L87 Difference]: Start difference. First operand 576 states and 848 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:48:58,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:00,878 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 [] [2022-04-06 08:49:01,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:49:01,310 INFO L93 Difference]: Finished difference Result 647 states and 935 transitions. [2022-04-06 08:49:01,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:49:01,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-04-06 08:49:01,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:49:01,312 INFO L225 Difference]: With dead ends: 647 [2022-04-06 08:49:01,315 INFO L226 Difference]: Without dead ends: 647 [2022-04-06 08:49:01,315 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:49:01,316 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 122 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:49:01,316 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 366 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-04-06 08:49:01,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-04-06 08:49:01,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 576. [2022-04-06 08:49:01,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.4623467600700526) internal successors, (835), 571 states have internal predecessors, (835), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:01,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 839 transitions. [2022-04-06 08:49:01,322 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 839 transitions. Word has length 166 [2022-04-06 08:49:01,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:49:01,322 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 839 transitions. [2022-04-06 08:49:01,323 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:01,324 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 839 transitions. [2022-04-06 08:49:01,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-04-06 08:49:01,325 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:49:01,325 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:49:01,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-06 08:49:01,326 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:49:01,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:49:01,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1066888727, now seen corresponding path program 1 times [2022-04-06 08:49:01,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:49:01,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448904837] [2022-04-06 08:49:01,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:49:01,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:49:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:01,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:49:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:01,455 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-04-06 08:49:01,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:49:01,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448904837] [2022-04-06 08:49:01,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448904837] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:49:01,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:49:01,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:49:01,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225927142] [2022-04-06 08:49:01,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:49:01,457 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:49:01,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:49:01,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:49:01,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:49:01,459 INFO L87 Difference]: Start difference. First operand 576 states and 839 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:02,483 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 [] [2022-04-06 08:49:05,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:07,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:07,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:49:07,640 INFO L93 Difference]: Finished difference Result 641 states and 929 transitions. [2022-04-06 08:49:07,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:49:07,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-04-06 08:49:07,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:49:07,642 INFO L225 Difference]: With dead ends: 641 [2022-04-06 08:49:07,642 INFO L226 Difference]: Without dead ends: 641 [2022-04-06 08:49:07,642 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:49:07,643 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 71 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:49:07,643 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 583 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 502 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 08:49:07,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-04-06 08:49:07,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 587. [2022-04-06 08:49:07,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 582 states have (on average 1.4621993127147765) internal successors, (851), 582 states have internal predecessors, (851), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:07,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 855 transitions. [2022-04-06 08:49:07,656 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 855 transitions. Word has length 166 [2022-04-06 08:49:07,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:49:07,657 INFO L478 AbstractCegarLoop]: Abstraction has 587 states and 855 transitions. [2022-04-06 08:49:07,657 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:07,657 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 855 transitions. [2022-04-06 08:49:07,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-04-06 08:49:07,657 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:49:07,658 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:49:07,658 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-06 08:49:07,658 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:49:07,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:49:07,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1119849675, now seen corresponding path program 1 times [2022-04-06 08:49:07,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:49:07,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934098688] [2022-04-06 08:49:07,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:49:07,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:49:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:07,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:49:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-04-06 08:49:07,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:49:07,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934098688] [2022-04-06 08:49:07,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934098688] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:49:07,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:49:07,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:49:07,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533127606] [2022-04-06 08:49:07,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:49:07,776 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:49:07,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:49:07,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:49:07,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:49:07,776 INFO L87 Difference]: Start difference. First operand 587 states and 855 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:09,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:11,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:13,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:15,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:15,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:49:15,842 INFO L93 Difference]: Finished difference Result 616 states and 895 transitions. [2022-04-06 08:49:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:49:15,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-04-06 08:49:15,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:49:15,845 INFO L225 Difference]: With dead ends: 616 [2022-04-06 08:49:15,845 INFO L226 Difference]: Without dead ends: 616 [2022-04-06 08:49:15,845 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:49:15,845 INFO L913 BasicCegarLoop]: 232 mSDtfsCounter, 27 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:49:15,846 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 573 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 434 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-04-06 08:49:15,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-04-06 08:49:15,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 602. [2022-04-06 08:49:15,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.4606365159128978) internal successors, (872), 597 states have internal predecessors, (872), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:15,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 876 transitions. [2022-04-06 08:49:15,852 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 876 transitions. Word has length 167 [2022-04-06 08:49:15,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:49:15,852 INFO L478 AbstractCegarLoop]: Abstraction has 602 states and 876 transitions. [2022-04-06 08:49:15,852 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:15,853 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 876 transitions. [2022-04-06 08:49:15,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-06 08:49:15,854 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:49:15,854 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:49:15,854 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-06 08:49:15,854 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:49:15,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:49:15,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1663236114, now seen corresponding path program 1 times [2022-04-06 08:49:15,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:49:15,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543937555] [2022-04-06 08:49:15,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:49:15,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:49:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:15,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:49:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:15,996 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-04-06 08:49:15,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:49:15,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543937555] [2022-04-06 08:49:15,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543937555] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:49:15,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:49:15,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:49:15,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153277724] [2022-04-06 08:49:15,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:49:15,998 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:49:15,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:49:15,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:49:15,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:49:15,999 INFO L87 Difference]: Start difference. First operand 602 states and 876 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:17,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:19,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:20,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:22,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:22,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:49:22,695 INFO L93 Difference]: Finished difference Result 673 states and 963 transitions. [2022-04-06 08:49:22,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:49:22,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-04-06 08:49:22,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:49:22,697 INFO L225 Difference]: With dead ends: 673 [2022-04-06 08:49:22,697 INFO L226 Difference]: Without dead ends: 673 [2022-04-06 08:49:22,698 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:49:22,698 INFO L913 BasicCegarLoop]: 116 mSDtfsCounter, 120 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:49:22,698 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 336 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 08:49:22,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-04-06 08:49:22,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 602. [2022-04-06 08:49:22,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.4455611390284757) internal successors, (863), 597 states have internal predecessors, (863), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:22,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 867 transitions. [2022-04-06 08:49:22,705 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 867 transitions. Word has length 172 [2022-04-06 08:49:22,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:49:22,705 INFO L478 AbstractCegarLoop]: Abstraction has 602 states and 867 transitions. [2022-04-06 08:49:22,705 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:22,705 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 867 transitions. [2022-04-06 08:49:22,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-06 08:49:22,706 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:49:22,707 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:49:22,707 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-06 08:49:22,707 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:49:22,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:49:22,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1055786399, now seen corresponding path program 1 times [2022-04-06 08:49:22,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:49:22,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211286169] [2022-04-06 08:49:22,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:49:22,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:49:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:22,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:49:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:22,849 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-04-06 08:49:22,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:49:22,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211286169] [2022-04-06 08:49:22,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211286169] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:49:22,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:49:22,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:49:22,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948357623] [2022-04-06 08:49:22,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:49:22,850 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:49:22,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:49:22,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:49:22,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:49:22,850 INFO L87 Difference]: Start difference. First operand 602 states and 867 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:24,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:26,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:28,519 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 [] [2022-04-06 08:49:28,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:49:28,914 INFO L93 Difference]: Finished difference Result 1144 states and 1654 transitions. [2022-04-06 08:49:28,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:49:28,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-04-06 08:49:28,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:49:28,918 INFO L225 Difference]: With dead ends: 1144 [2022-04-06 08:49:28,918 INFO L226 Difference]: Without dead ends: 1144 [2022-04-06 08:49:28,918 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:49:28,918 INFO L913 BasicCegarLoop]: 372 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:49:28,918 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 566 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 403 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-04-06 08:49:28,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-04-06 08:49:28,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1144. [2022-04-06 08:49:28,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.4486391571553994) internal successors, (1650), 1139 states have internal predecessors, (1650), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:28,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1654 transitions. [2022-04-06 08:49:28,927 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1654 transitions. Word has length 172 [2022-04-06 08:49:28,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:49:28,927 INFO L478 AbstractCegarLoop]: Abstraction has 1144 states and 1654 transitions. [2022-04-06 08:49:28,927 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:28,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1654 transitions. [2022-04-06 08:49:28,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-06 08:49:28,929 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:49:28,929 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:49:28,929 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-06 08:49:28,929 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:49:28,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:49:28,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1289488092, now seen corresponding path program 1 times [2022-04-06 08:49:28,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:49:28,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369654484] [2022-04-06 08:49:28,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:49:28,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:49:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:29,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:49:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:29,057 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-04-06 08:49:29,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:49:29,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369654484] [2022-04-06 08:49:29,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369654484] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:49:29,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:49:29,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:49:29,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438469999] [2022-04-06 08:49:29,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:49:29,058 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:49:29,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:49:29,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:49:29,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:49:29,059 INFO L87 Difference]: Start difference. First operand 1144 states and 1654 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:31,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:33,589 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 [] [2022-04-06 08:49:33,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:49:33,953 INFO L93 Difference]: Finished difference Result 1177 states and 1693 transitions. [2022-04-06 08:49:33,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:49:33,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-06 08:49:33,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:49:33,956 INFO L225 Difference]: With dead ends: 1177 [2022-04-06 08:49:33,957 INFO L226 Difference]: Without dead ends: 1177 [2022-04-06 08:49:33,957 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:49:33,957 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 45 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:49:33,957 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 525 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-04-06 08:49:33,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-04-06 08:49:33,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1144. [2022-04-06 08:49:33,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.446883230904302) internal successors, (1648), 1139 states have internal predecessors, (1648), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:33,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1652 transitions. [2022-04-06 08:49:33,966 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1652 transitions. Word has length 173 [2022-04-06 08:49:33,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:49:33,966 INFO L478 AbstractCegarLoop]: Abstraction has 1144 states and 1652 transitions. [2022-04-06 08:49:33,966 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:33,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1652 transitions. [2022-04-06 08:49:33,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-06 08:49:33,968 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:49:33,968 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:49:33,968 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-06 08:49:33,969 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:49:33,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:49:33,969 INFO L85 PathProgramCache]: Analyzing trace with hash 434121896, now seen corresponding path program 1 times [2022-04-06 08:49:33,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:49:33,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778904541] [2022-04-06 08:49:33,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:49:33,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:49:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:34,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:49:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:34,082 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:49:34,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:49:34,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778904541] [2022-04-06 08:49:34,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778904541] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:49:34,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:49:34,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:49:34,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108976739] [2022-04-06 08:49:34,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:49:34,083 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:49:34,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:49:34,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:49:34,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:49:34,084 INFO L87 Difference]: Start difference. First operand 1144 states and 1652 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:35,475 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 [] [2022-04-06 08:49:37,492 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 [] [2022-04-06 08:49:37,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:49:37,906 INFO L93 Difference]: Finished difference Result 1654 states and 2391 transitions. [2022-04-06 08:49:37,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:49:37,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-06 08:49:37,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:49:37,910 INFO L225 Difference]: With dead ends: 1654 [2022-04-06 08:49:37,910 INFO L226 Difference]: Without dead ends: 1654 [2022-04-06 08:49:37,910 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:49:37,911 INFO L913 BasicCegarLoop]: 373 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:49:37,911 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 567 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-04-06 08:49:37,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-04-06 08:49:37,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1654. [2022-04-06 08:49:37,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1649 states have (on average 1.4475439660400242) internal successors, (2387), 1649 states have internal predecessors, (2387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:37,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2391 transitions. [2022-04-06 08:49:37,923 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2391 transitions. Word has length 173 [2022-04-06 08:49:37,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:49:37,923 INFO L478 AbstractCegarLoop]: Abstraction has 1654 states and 2391 transitions. [2022-04-06 08:49:37,923 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:37,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2391 transitions. [2022-04-06 08:49:37,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-06 08:49:37,925 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:49:37,925 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:49:37,925 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-06 08:49:37,925 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:49:37,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:49:37,925 INFO L85 PathProgramCache]: Analyzing trace with hash 201941755, now seen corresponding path program 1 times [2022-04-06 08:49:37,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:49:37,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527656411] [2022-04-06 08:49:37,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:49:37,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:49:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:38,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:49:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:38,035 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-06 08:49:38,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:49:38,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527656411] [2022-04-06 08:49:38,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527656411] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:49:38,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:49:38,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:49:38,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982748502] [2022-04-06 08:49:38,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:49:38,036 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:49:38,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:49:38,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:49:38,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:49:38,036 INFO L87 Difference]: Start difference. First operand 1654 states and 2391 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 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) [2022-04-06 08:49:41,348 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 [] [2022-04-06 08:49:41,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:49:41,641 INFO L93 Difference]: Finished difference Result 2155 states and 3117 transitions. [2022-04-06 08:49:41,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:49:41,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 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 174 [2022-04-06 08:49:41,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:49:41,648 INFO L225 Difference]: With dead ends: 2155 [2022-04-06 08:49:41,649 INFO L226 Difference]: Without dead ends: 2155 [2022-04-06 08:49:41,649 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:49:41,649 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:49:41,649 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 447 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 285 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-04-06 08:49:41,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2022-04-06 08:49:41,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2155. [2022-04-06 08:49:41,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2150 states have (on average 1.4479069767441861) internal successors, (3113), 2150 states have internal predecessors, (3113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 3117 transitions. [2022-04-06 08:49:41,687 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 3117 transitions. Word has length 174 [2022-04-06 08:49:41,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:49:41,688 INFO L478 AbstractCegarLoop]: Abstraction has 2155 states and 3117 transitions. [2022-04-06 08:49:41,688 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 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) [2022-04-06 08:49:41,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 3117 transitions. [2022-04-06 08:49:41,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-06 08:49:41,691 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:49:41,691 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:49:41,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-06 08:49:41,691 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:49:41,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:49:41,692 INFO L85 PathProgramCache]: Analyzing trace with hash -222767815, now seen corresponding path program 1 times [2022-04-06 08:49:41,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:49:41,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803083893] [2022-04-06 08:49:41,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:49:41,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:49:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:41,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:49:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-04-06 08:49:41,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:49:41,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803083893] [2022-04-06 08:49:41,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803083893] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:49:41,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:49:41,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:49:41,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522813236] [2022-04-06 08:49:41,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:49:41,796 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:49:41,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:49:41,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:49:41,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:49:41,796 INFO L87 Difference]: Start difference. First operand 2155 states and 3117 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:44,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:45,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:45,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:49:45,871 INFO L93 Difference]: Finished difference Result 2157 states and 3119 transitions. [2022-04-06 08:49:45,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:49:45,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-04-06 08:49:45,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:49:45,876 INFO L225 Difference]: With dead ends: 2157 [2022-04-06 08:49:45,876 INFO L226 Difference]: Without dead ends: 2157 [2022-04-06 08:49:45,877 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:49:45,877 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:49:45,877 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 392 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-04-06 08:49:45,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2022-04-06 08:49:45,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 2157. [2022-04-06 08:49:45,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2157 states, 2152 states have (on average 1.4474907063197027) internal successors, (3115), 2152 states have internal predecessors, (3115), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:45,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 3119 transitions. [2022-04-06 08:49:45,899 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 3119 transitions. Word has length 174 [2022-04-06 08:49:45,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:49:45,900 INFO L478 AbstractCegarLoop]: Abstraction has 2157 states and 3119 transitions. [2022-04-06 08:49:45,900 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 3119 transitions. [2022-04-06 08:49:45,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-04-06 08:49:45,903 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:49:45,903 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:49:45,904 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-06 08:49:45,904 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:49:45,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:49:45,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1725486435, now seen corresponding path program 1 times [2022-04-06 08:49:45,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:49:45,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291941355] [2022-04-06 08:49:45,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:49:45,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:49:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:46,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:49:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-04-06 08:49:46,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:49:46,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291941355] [2022-04-06 08:49:46,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291941355] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:49:46,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:49:46,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:49:46,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245634997] [2022-04-06 08:49:46,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:49:46,091 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:49:46,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:49:46,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:49:46,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:49:46,092 INFO L87 Difference]: Start difference. First operand 2157 states and 3119 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) [2022-04-06 08:49:49,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:49:49,100 INFO L93 Difference]: Finished difference Result 2414 states and 3466 transitions. [2022-04-06 08:49:49,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:49:49,101 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 267 [2022-04-06 08:49:49,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:49:49,111 INFO L225 Difference]: With dead ends: 2414 [2022-04-06 08:49:49,111 INFO L226 Difference]: Without dead ends: 2414 [2022-04-06 08:49:49,111 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:49:49,113 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 70 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:49:49,114 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 597 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-06 08:49:49,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-04-06 08:49:49,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2201. [2022-04-06 08:49:49,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 2196 states have (on average 1.447632058287796) internal successors, (3179), 2196 states have internal predecessors, (3179), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:49,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 3183 transitions. [2022-04-06 08:49:49,144 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 3183 transitions. Word has length 267 [2022-04-06 08:49:49,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:49:49,144 INFO L478 AbstractCegarLoop]: Abstraction has 2201 states and 3183 transitions. [2022-04-06 08:49:49,144 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:49,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 3183 transitions. [2022-04-06 08:49:49,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-04-06 08:49:49,148 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:49:49,148 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:49:49,148 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-06 08:49:49,149 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:49:49,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:49:49,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1784133777, now seen corresponding path program 1 times [2022-04-06 08:49:49,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:49:49,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464592496] [2022-04-06 08:49:49,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:49:49,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:49:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:49,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:49:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:49,315 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-04-06 08:49:49,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:49:49,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464592496] [2022-04-06 08:49:49,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464592496] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:49:49,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:49:49,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:49:49,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840387939] [2022-04-06 08:49:49,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:49:49,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:49:49,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:49:49,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:49:49,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:49:49,316 INFO L87 Difference]: Start difference. First operand 2201 states and 3183 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:51,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:52,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:53,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:55,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:49:55,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:49:55,620 INFO L93 Difference]: Finished difference Result 2406 states and 3454 transitions. [2022-04-06 08:49:55,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:49:55,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-04-06 08:49:55,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:49:55,624 INFO L225 Difference]: With dead ends: 2406 [2022-04-06 08:49:55,624 INFO L226 Difference]: Without dead ends: 2406 [2022-04-06 08:49:55,624 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:49:55,625 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 48 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:49:55,625 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 593 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 08:49:55,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-04-06 08:49:55,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2281. [2022-04-06 08:49:55,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 2276 states have (on average 1.4442003514938488) internal successors, (3287), 2276 states have internal predecessors, (3287), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:55,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3291 transitions. [2022-04-06 08:49:55,664 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3291 transitions. Word has length 268 [2022-04-06 08:49:55,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:49:55,664 INFO L478 AbstractCegarLoop]: Abstraction has 2281 states and 3291 transitions. [2022-04-06 08:49:55,664 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:55,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3291 transitions. [2022-04-06 08:49:55,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-04-06 08:49:55,668 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:49:55,668 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:49:55,669 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-04-06 08:49:55,669 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:49:55,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:49:55,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1081130711, now seen corresponding path program 1 times [2022-04-06 08:49:55,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:49:55,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814014676] [2022-04-06 08:49:55,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:49:55,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:49:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:55,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:49:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:49:55,848 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-04-06 08:49:55,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:49:55,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814014676] [2022-04-06 08:49:55,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814014676] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:49:55,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:49:55,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:49:55,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764990826] [2022-04-06 08:49:55,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:49:55,849 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:49:55,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:49:55,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:49:55,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:49:55,849 INFO L87 Difference]: Start difference. First operand 2281 states and 3291 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:49:58,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:01,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:01,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:50:01,697 INFO L93 Difference]: Finished difference Result 2406 states and 3450 transitions. [2022-04-06 08:50:01,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:50:01,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-04-06 08:50:01,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:50:01,701 INFO L225 Difference]: With dead ends: 2406 [2022-04-06 08:50:01,701 INFO L226 Difference]: Without dead ends: 2406 [2022-04-06 08:50:01,701 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:50:01,702 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 43 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:50:01,702 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 591 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:50:01,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-04-06 08:50:01,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2297. [2022-04-06 08:50:01,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2297 states, 2292 states have (on average 1.4445898778359512) internal successors, (3311), 2292 states have internal predecessors, (3311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:01,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2297 states to 2297 states and 3315 transitions. [2022-04-06 08:50:01,726 INFO L78 Accepts]: Start accepts. Automaton has 2297 states and 3315 transitions. Word has length 277 [2022-04-06 08:50:01,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:50:01,727 INFO L478 AbstractCegarLoop]: Abstraction has 2297 states and 3315 transitions. [2022-04-06 08:50:01,727 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:01,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2297 states and 3315 transitions. [2022-04-06 08:50:01,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-04-06 08:50:01,731 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:50:01,731 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:50:01,731 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-06 08:50:01,731 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:50:01,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:50:01,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1245485029, now seen corresponding path program 1 times [2022-04-06 08:50:01,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:50:01,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757799863] [2022-04-06 08:50:01,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:50:01,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:50:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:01,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:50:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:01,897 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-04-06 08:50:01,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:50:01,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757799863] [2022-04-06 08:50:01,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757799863] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:50:01,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:50:01,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:50:01,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525240216] [2022-04-06 08:50:01,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:50:01,898 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:50:01,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:50:01,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:50:01,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:50:01,898 INFO L87 Difference]: Start difference. First operand 2297 states and 3315 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:05,602 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 [] [2022-04-06 08:50:06,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:50:06,016 INFO L93 Difference]: Finished difference Result 2398 states and 3438 transitions. [2022-04-06 08:50:06,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:50:06,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 278 [2022-04-06 08:50:06,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:50:06,020 INFO L225 Difference]: With dead ends: 2398 [2022-04-06 08:50:06,020 INFO L226 Difference]: Without dead ends: 2398 [2022-04-06 08:50:06,020 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:50:06,020 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 40 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:50:06,020 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 587 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-04-06 08:50:06,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2022-04-06 08:50:06,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2301. [2022-04-06 08:50:06,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2296 states have (on average 1.443815331010453) internal successors, (3315), 2296 states have internal predecessors, (3315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:06,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3319 transitions. [2022-04-06 08:50:06,036 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3319 transitions. Word has length 278 [2022-04-06 08:50:06,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:50:06,037 INFO L478 AbstractCegarLoop]: Abstraction has 2301 states and 3319 transitions. [2022-04-06 08:50:06,037 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:06,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3319 transitions. [2022-04-06 08:50:06,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-04-06 08:50:06,040 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:50:06,040 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:50:06,040 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-06 08:50:06,040 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:50:06,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:50:06,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2131122745, now seen corresponding path program 1 times [2022-04-06 08:50:06,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:50:06,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969904196] [2022-04-06 08:50:06,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:50:06,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:50:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:06,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:50:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:06,249 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-04-06 08:50:06,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:50:06,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969904196] [2022-04-06 08:50:06,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969904196] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:50:06,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:50:06,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:50:06,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149254752] [2022-04-06 08:50:06,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:50:06,250 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:50:06,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:50:06,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:50:06,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:50:06,251 INFO L87 Difference]: Start difference. First operand 2301 states and 3319 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:08,630 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 [] [2022-04-06 08:50:11,458 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 [] [2022-04-06 08:50:11,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:50:11,843 INFO L93 Difference]: Finished difference Result 2390 states and 3422 transitions. [2022-04-06 08:50:11,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:50:11,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 296 [2022-04-06 08:50:11,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:50:11,846 INFO L225 Difference]: With dead ends: 2390 [2022-04-06 08:50:11,846 INFO L226 Difference]: Without dead ends: 2390 [2022-04-06 08:50:11,846 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:50:11,847 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 47 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:50:11,847 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 585 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 08:50:11,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-04-06 08:50:11,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2301. [2022-04-06 08:50:11,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2296 states have (on average 1.4420731707317074) internal successors, (3311), 2296 states have internal predecessors, (3311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:11,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3315 transitions. [2022-04-06 08:50:11,864 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3315 transitions. Word has length 296 [2022-04-06 08:50:11,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:50:11,864 INFO L478 AbstractCegarLoop]: Abstraction has 2301 states and 3315 transitions. [2022-04-06 08:50:11,864 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:11,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3315 transitions. [2022-04-06 08:50:11,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-04-06 08:50:11,867 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:50:11,867 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-04-06 08:50:11,867 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-06 08:50:11,868 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:50:11,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:50:11,868 INFO L85 PathProgramCache]: Analyzing trace with hash 522812222, now seen corresponding path program 1 times [2022-04-06 08:50:11,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:50:11,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425455405] [2022-04-06 08:50:11,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:50:11,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:50:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:12,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:50:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:12,067 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 474 proven. 106 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-04-06 08:50:12,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:50:12,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425455405] [2022-04-06 08:50:12,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425455405] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:50:12,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191268522] [2022-04-06 08:50:12,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:50:12,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:50:12,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:50:12,069 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) [2022-04-06 08:50:12,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 08:50:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:13,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 1576 conjuncts, 18 conjunts are in the unsatisfiable core [2022-04-06 08:50:13,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:50:13,174 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:50:13,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 08:50:13,234 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:50:13,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 08:50:13,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-06 08:50:13,415 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:50:13,415 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-06 08:50:13,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 08:50:13,664 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 477 proven. 64 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-04-06 08:50:13,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:50:14,097 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-04-06 08:50:14,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191268522] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:50:14,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:50:14,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-04-06 08:50:14,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316583192] [2022-04-06 08:50:14,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:50:14,099 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:50:14,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:50:14,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:50:14,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-06 08:50:14,099 INFO L87 Difference]: Start difference. First operand 2301 states and 3315 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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) [2022-04-06 08:50:15,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:15,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:50:15,833 INFO L93 Difference]: Finished difference Result 2567 states and 3658 transitions. [2022-04-06 08:50:15,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:50:15,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 297 [2022-04-06 08:50:15,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:50:15,837 INFO L225 Difference]: With dead ends: 2567 [2022-04-06 08:50:15,837 INFO L226 Difference]: Without dead ends: 2567 [2022-04-06 08:50:15,837 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:50:15,838 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 105 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:50:15,838 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 409 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-06 08:50:15,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2022-04-06 08:50:15,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2301. [2022-04-06 08:50:15,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2296 states have (on average 1.4390243902439024) internal successors, (3304), 2296 states have internal predecessors, (3304), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:15,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3308 transitions. [2022-04-06 08:50:15,861 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3308 transitions. Word has length 297 [2022-04-06 08:50:15,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:50:15,861 INFO L478 AbstractCegarLoop]: Abstraction has 2301 states and 3308 transitions. [2022-04-06 08:50:15,861 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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) [2022-04-06 08:50:15,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3308 transitions. [2022-04-06 08:50:15,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-04-06 08:50:15,865 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:50:15,865 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-04-06 08:50:15,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-06 08:50:16,078 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2022-04-06 08:50:16,078 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:50:16,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:50:16,079 INFO L85 PathProgramCache]: Analyzing trace with hash 307983069, now seen corresponding path program 1 times [2022-04-06 08:50:16,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:50:16,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885918244] [2022-04-06 08:50:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:50:16,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:50:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:16,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:50:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:16,439 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-04-06 08:50:16,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:50:16,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885918244] [2022-04-06 08:50:16,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885918244] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:50:16,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:50:16,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-06 08:50:16,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386310350] [2022-04-06 08:50:16,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:50:16,441 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-06 08:50:16,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:50:16,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-06 08:50:16,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-06 08:50:16,441 INFO L87 Difference]: Start difference. First operand 2301 states and 3308 transitions. Second operand has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 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) [2022-04-06 08:50:19,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:21,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:23,938 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 [] [2022-04-06 08:50:25,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:50:25,825 INFO L93 Difference]: Finished difference Result 4380 states and 6286 transitions. [2022-04-06 08:50:25,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-06 08:50:25,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 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 297 [2022-04-06 08:50:25,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:50:25,832 INFO L225 Difference]: With dead ends: 4380 [2022-04-06 08:50:25,832 INFO L226 Difference]: Without dead ends: 4380 [2022-04-06 08:50:25,832 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-04-06 08:50:25,833 INFO L913 BasicCegarLoop]: 319 mSDtfsCounter, 190 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 50 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:50:25,833 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 1263 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1390 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2022-04-06 08:50:25,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2022-04-06 08:50:25,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4121. [2022-04-06 08:50:25,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4121 states, 4116 states have (on average 1.4523809523809523) internal successors, (5978), 4116 states have internal predecessors, (5978), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 5982 transitions. [2022-04-06 08:50:25,874 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 5982 transitions. Word has length 297 [2022-04-06 08:50:25,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:50:25,875 INFO L478 AbstractCegarLoop]: Abstraction has 4121 states and 5982 transitions. [2022-04-06 08:50:25,875 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 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) [2022-04-06 08:50:25,875 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 5982 transitions. [2022-04-06 08:50:25,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-04-06 08:50:25,881 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:50:25,881 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:50:25,881 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-06 08:50:25,881 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:50:25,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:50:25,882 INFO L85 PathProgramCache]: Analyzing trace with hash -922148886, now seen corresponding path program 1 times [2022-04-06 08:50:25,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:50:25,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507186652] [2022-04-06 08:50:25,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:50:25,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:50:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:26,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:50:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:26,103 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-04-06 08:50:26,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:50:26,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507186652] [2022-04-06 08:50:26,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507186652] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:50:26,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:50:26,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:50:26,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565141614] [2022-04-06 08:50:26,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:50:26,104 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:50:26,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:50:26,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:50:26,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:50:26,104 INFO L87 Difference]: Start difference. First operand 4121 states and 5982 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:28,319 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 [] [2022-04-06 08:50:31,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:31,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:50:31,665 INFO L93 Difference]: Finished difference Result 4607 states and 6640 transitions. [2022-04-06 08:50:31,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:50:31,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 298 [2022-04-06 08:50:31,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:50:31,671 INFO L225 Difference]: With dead ends: 4607 [2022-04-06 08:50:31,671 INFO L226 Difference]: Without dead ends: 4607 [2022-04-06 08:50:31,672 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:50:31,672 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 69 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:50:31,672 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 577 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-06 08:50:31,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4607 states. [2022-04-06 08:50:31,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4607 to 4209. [2022-04-06 08:50:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 4204 states have (on average 1.4524262607040914) internal successors, (6106), 4204 states have internal predecessors, (6106), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:31,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 6110 transitions. [2022-04-06 08:50:31,791 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 6110 transitions. Word has length 298 [2022-04-06 08:50:31,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:50:31,791 INFO L478 AbstractCegarLoop]: Abstraction has 4209 states and 6110 transitions. [2022-04-06 08:50:31,791 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:31,791 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 6110 transitions. [2022-04-06 08:50:31,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-04-06 08:50:31,798 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:50:31,798 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:50:31,798 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-04-06 08:50:31,807 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:50:31,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:50:31,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1375885393, now seen corresponding path program 1 times [2022-04-06 08:50:31,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:50:31,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851868941] [2022-04-06 08:50:31,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:50:31,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:50:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:32,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:50:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-04-06 08:50:32,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:50:32,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851868941] [2022-04-06 08:50:32,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851868941] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:50:32,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:50:32,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:50:32,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752823162] [2022-04-06 08:50:32,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:50:32,023 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:50:32,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:50:32,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:50:32,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:50:32,023 INFO L87 Difference]: Start difference. First operand 4209 states and 6110 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:33,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:35,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:37,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:38,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:50:38,207 INFO L93 Difference]: Finished difference Result 4355 states and 6280 transitions. [2022-04-06 08:50:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:50:38,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have 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 [2022-04-06 08:50:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:50:38,213 INFO L225 Difference]: With dead ends: 4355 [2022-04-06 08:50:38,213 INFO L226 Difference]: Without dead ends: 4323 [2022-04-06 08:50:38,213 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:50:38,213 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 31 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:50:38,214 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 581 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-04-06 08:50:38,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2022-04-06 08:50:38,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 4201. [2022-04-06 08:50:38,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4201 states, 4196 states have (on average 1.4513822688274547) internal successors, (6090), 4196 states have internal predecessors, (6090), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:38,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4201 states to 4201 states and 6094 transitions. [2022-04-06 08:50:38,258 INFO L78 Accepts]: Start accepts. Automaton has 4201 states and 6094 transitions. Word has length 298 [2022-04-06 08:50:38,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:50:38,258 INFO L478 AbstractCegarLoop]: Abstraction has 4201 states and 6094 transitions. [2022-04-06 08:50:38,258 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:38,258 INFO L276 IsEmpty]: Start isEmpty. Operand 4201 states and 6094 transitions. [2022-04-06 08:50:38,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-04-06 08:50:38,265 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:50:38,265 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:50:38,265 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-06 08:50:38,265 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:50:38,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:50:38,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1644493762, now seen corresponding path program 1 times [2022-04-06 08:50:38,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:50:38,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031525689] [2022-04-06 08:50:38,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:50:38,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:50:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:38,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:50:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:38,471 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2022-04-06 08:50:38,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:50:38,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031525689] [2022-04-06 08:50:38,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031525689] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:50:38,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:50:38,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:50:38,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494830740] [2022-04-06 08:50:38,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:50:38,472 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:50:38,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:50:38,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:50:38,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:50:38,473 INFO L87 Difference]: Start difference. First operand 4201 states and 6094 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:41,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:41,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:50:41,802 INFO L93 Difference]: Finished difference Result 4307 states and 6218 transitions. [2022-04-06 08:50:41,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:50:41,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 299 [2022-04-06 08:50:41,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:50:41,809 INFO L225 Difference]: With dead ends: 4307 [2022-04-06 08:50:41,810 INFO L226 Difference]: Without dead ends: 4307 [2022-04-06 08:50:41,811 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:50:41,811 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 14 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:50:41,811 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 553 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-06 08:50:41,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2022-04-06 08:50:41,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4281. [2022-04-06 08:50:41,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4281 states, 4276 states have (on average 1.4466791393826006) internal successors, (6186), 4276 states have internal predecessors, (6186), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:41,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4281 states to 4281 states and 6190 transitions. [2022-04-06 08:50:41,856 INFO L78 Accepts]: Start accepts. Automaton has 4281 states and 6190 transitions. Word has length 299 [2022-04-06 08:50:41,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:50:41,856 INFO L478 AbstractCegarLoop]: Abstraction has 4281 states and 6190 transitions. [2022-04-06 08:50:41,857 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:41,857 INFO L276 IsEmpty]: Start isEmpty. Operand 4281 states and 6190 transitions. [2022-04-06 08:50:41,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-04-06 08:50:41,863 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:50:41,863 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:50:41,863 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-04-06 08:50:41,864 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:50:41,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:50:41,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1431479809, now seen corresponding path program 1 times [2022-04-06 08:50:41,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:50:41,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748999614] [2022-04-06 08:50:41,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:50:41,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:50:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:42,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:50:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-04-06 08:50:42,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:50:42,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748999614] [2022-04-06 08:50:42,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748999614] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:50:42,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:50:42,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:50:42,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062777094] [2022-04-06 08:50:42,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:50:42,083 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:50:42,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:50:42,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:50:42,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:50:42,083 INFO L87 Difference]: Start difference. First operand 4281 states and 6190 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:43,345 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 [] [2022-04-06 08:50:45,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:47,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:49,412 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 [] [2022-04-06 08:50:49,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:50:49,840 INFO L93 Difference]: Finished difference Result 4655 states and 6684 transitions. [2022-04-06 08:50:49,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:50:49,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 299 [2022-04-06 08:50:49,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:50:49,846 INFO L225 Difference]: With dead ends: 4655 [2022-04-06 08:50:49,847 INFO L226 Difference]: Without dead ends: 4655 [2022-04-06 08:50:49,847 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:50:49,847 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 69 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:50:49,847 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 577 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 498 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-04-06 08:50:49,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4655 states. [2022-04-06 08:50:49,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4655 to 4325. [2022-04-06 08:50:49,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 4320 states have (on average 1.4458333333333333) internal successors, (6246), 4320 states have internal predecessors, (6246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:49,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 6250 transitions. [2022-04-06 08:50:49,901 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 6250 transitions. Word has length 299 [2022-04-06 08:50:49,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:50:49,902 INFO L478 AbstractCegarLoop]: Abstraction has 4325 states and 6250 transitions. [2022-04-06 08:50:49,902 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:49,902 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 6250 transitions. [2022-04-06 08:50:49,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-04-06 08:50:49,909 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:50:49,909 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:50:49,909 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-04-06 08:50:49,910 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:50:49,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:50:49,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1259862963, now seen corresponding path program 1 times [2022-04-06 08:50:49,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:50:49,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234138935] [2022-04-06 08:50:49,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:50:49,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:50:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:50,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:50:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:50,119 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2022-04-06 08:50:50,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:50:50,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234138935] [2022-04-06 08:50:50,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234138935] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:50:50,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:50:50,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:50:50,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423657281] [2022-04-06 08:50:50,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:50:50,120 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:50:50,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:50:50,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:50:50,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:50:50,120 INFO L87 Difference]: Start difference. First operand 4325 states and 6250 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:51,641 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 [] [2022-04-06 08:50:53,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:55,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:50:56,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:50:56,291 INFO L93 Difference]: Finished difference Result 4639 states and 6660 transitions. [2022-04-06 08:50:56,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:50:56,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 300 [2022-04-06 08:50:56,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:50:56,295 INFO L225 Difference]: With dead ends: 4639 [2022-04-06 08:50:56,295 INFO L226 Difference]: Without dead ends: 4639 [2022-04-06 08:50:56,296 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:50:56,296 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 47 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:50:56,296 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 579 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-04-06 08:50:56,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-04-06 08:50:56,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4417. [2022-04-06 08:50:56,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4412 states have (on average 1.442883046237534) internal successors, (6366), 4412 states have internal predecessors, (6366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:56,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6370 transitions. [2022-04-06 08:50:56,349 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 6370 transitions. Word has length 300 [2022-04-06 08:50:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:50:56,349 INFO L478 AbstractCegarLoop]: Abstraction has 4417 states and 6370 transitions. [2022-04-06 08:50:56,349 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 6370 transitions. [2022-04-06 08:50:56,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-04-06 08:50:56,358 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:50:56,359 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:50:56,359 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-04-06 08:50:56,359 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:50:56,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:50:56,359 INFO L85 PathProgramCache]: Analyzing trace with hash 502472203, now seen corresponding path program 1 times [2022-04-06 08:50:56,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:50:56,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680988849] [2022-04-06 08:50:56,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:50:56,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:50:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:56,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:50:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:50:56,562 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 570 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-04-06 08:50:56,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:50:56,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680988849] [2022-04-06 08:50:56,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680988849] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:50:56,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:50:56,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:50:56,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931520025] [2022-04-06 08:50:56,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:50:56,564 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:50:56,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:50:56,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:50:56,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:50:56,564 INFO L87 Difference]: Start difference. First operand 4417 states and 6370 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:50:59,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:51:00,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:51:02,457 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 [] [2022-04-06 08:51:02,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:51:02,842 INFO L93 Difference]: Finished difference Result 4539 states and 6512 transitions. [2022-04-06 08:51:02,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:51:02,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 309 [2022-04-06 08:51:02,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:51:02,847 INFO L225 Difference]: With dead ends: 4539 [2022-04-06 08:51:02,847 INFO L226 Difference]: Without dead ends: 4539 [2022-04-06 08:51:02,848 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:51:02,848 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 30 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:51:02,848 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 579 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 458 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 08:51:02,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2022-04-06 08:51:02,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 4417. [2022-04-06 08:51:02,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4412 states have (on average 1.4410698096101542) internal successors, (6358), 4412 states have internal predecessors, (6358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:02,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6362 transitions. [2022-04-06 08:51:02,905 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 6362 transitions. Word has length 309 [2022-04-06 08:51:02,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:51:02,905 INFO L478 AbstractCegarLoop]: Abstraction has 4417 states and 6362 transitions. [2022-04-06 08:51:02,906 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:02,906 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 6362 transitions. [2022-04-06 08:51:02,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-04-06 08:51:02,911 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:51:02,911 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:51:02,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-04-06 08:51:02,912 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:51:02,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:51:02,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1430463166, now seen corresponding path program 1 times [2022-04-06 08:51:02,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:51:02,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110280841] [2022-04-06 08:51:02,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:51:02,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:51:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:51:03,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:51:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:51:03,121 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 576 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-04-06 08:51:03,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:51:03,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110280841] [2022-04-06 08:51:03,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110280841] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:51:03,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:51:03,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:51:03,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267062015] [2022-04-06 08:51:03,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:51:03,123 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:51:03,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:51:03,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:51:03,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:51:03,124 INFO L87 Difference]: Start difference. First operand 4417 states and 6362 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:04,875 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 [] [2022-04-06 08:51:06,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:51:08,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:51:10,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:51:10,280 INFO L93 Difference]: Finished difference Result 4507 states and 6464 transitions. [2022-04-06 08:51:10,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:51:10,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 310 [2022-04-06 08:51:10,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:51:10,286 INFO L225 Difference]: With dead ends: 4507 [2022-04-06 08:51:10,286 INFO L226 Difference]: Without dead ends: 4435 [2022-04-06 08:51:10,286 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:51:10,286 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 26 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:51:10,287 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 571 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 446 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-04-06 08:51:10,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4435 states. [2022-04-06 08:51:10,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 4345. [2022-04-06 08:51:10,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4345 states, 4340 states have (on average 1.4465437788018434) internal successors, (6278), 4340 states have internal predecessors, (6278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:10,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 4345 states and 6282 transitions. [2022-04-06 08:51:10,346 INFO L78 Accepts]: Start accepts. Automaton has 4345 states and 6282 transitions. Word has length 310 [2022-04-06 08:51:10,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:51:10,346 INFO L478 AbstractCegarLoop]: Abstraction has 4345 states and 6282 transitions. [2022-04-06 08:51:10,347 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:10,347 INFO L276 IsEmpty]: Start isEmpty. Operand 4345 states and 6282 transitions. [2022-04-06 08:51:10,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-04-06 08:51:10,352 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:51:10,352 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:51:10,352 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-04-06 08:51:10,352 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:51:10,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:51:10,353 INFO L85 PathProgramCache]: Analyzing trace with hash -953423688, now seen corresponding path program 1 times [2022-04-06 08:51:10,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:51:10,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792503088] [2022-04-06 08:51:10,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:51:10,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:51:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:51:10,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:51:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:51:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 576 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-04-06 08:51:10,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:51:10,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792503088] [2022-04-06 08:51:10,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792503088] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:51:10,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:51:10,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:51:10,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328002334] [2022-04-06 08:51:10,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:51:10,688 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:51:10,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:51:10,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:51:10,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:51:10,689 INFO L87 Difference]: Start difference. First operand 4345 states and 6282 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:13,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:51:13,485 INFO L93 Difference]: Finished difference Result 4403 states and 6344 transitions. [2022-04-06 08:51:13,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:51:13,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 318 [2022-04-06 08:51:13,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:51:13,494 INFO L225 Difference]: With dead ends: 4403 [2022-04-06 08:51:13,494 INFO L226 Difference]: Without dead ends: 4387 [2022-04-06 08:51:13,495 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:51:13,495 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 21 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:51:13,495 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 563 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-06 08:51:13,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2022-04-06 08:51:13,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 4329. [2022-04-06 08:51:13,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 4324 states have (on average 1.446345975948196) internal successors, (6254), 4324 states have internal predecessors, (6254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:13,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 6258 transitions. [2022-04-06 08:51:13,522 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 6258 transitions. Word has length 318 [2022-04-06 08:51:13,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:51:13,522 INFO L478 AbstractCegarLoop]: Abstraction has 4329 states and 6258 transitions. [2022-04-06 08:51:13,523 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:13,523 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 6258 transitions. [2022-04-06 08:51:13,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-04-06 08:51:13,526 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:51:13,526 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:51:13,527 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-04-06 08:51:13,527 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:51:13,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:51:13,527 INFO L85 PathProgramCache]: Analyzing trace with hash -893601060, now seen corresponding path program 1 times [2022-04-06 08:51:13,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:51:13,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022320222] [2022-04-06 08:51:13,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:51:13,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:51:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:51:13,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:51:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:51:13,751 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-04-06 08:51:13,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:51:13,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022320222] [2022-04-06 08:51:13,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022320222] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:51:13,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:51:13,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:51:13,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253857020] [2022-04-06 08:51:13,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:51:13,753 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:51:13,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:51:13,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:51:13,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:51:13,753 INFO L87 Difference]: Start difference. First operand 4329 states and 6258 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:14,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:51:16,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:51:18,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:51:20,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:51:20,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:51:20,518 INFO L93 Difference]: Finished difference Result 4387 states and 6320 transitions. [2022-04-06 08:51:20,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:51:20,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 319 [2022-04-06 08:51:20,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:51:20,523 INFO L225 Difference]: With dead ends: 4387 [2022-04-06 08:51:20,523 INFO L226 Difference]: Without dead ends: 4387 [2022-04-06 08:51:20,523 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:51:20,523 INFO L913 BasicCegarLoop]: 226 mSDtfsCounter, 20 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:51:20,523 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 561 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 401 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 08:51:20,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2022-04-06 08:51:20,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 4329. [2022-04-06 08:51:20,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 4324 states have (on average 1.4444958371877892) internal successors, (6246), 4324 states have internal predecessors, (6246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:20,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 6250 transitions. [2022-04-06 08:51:20,585 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 6250 transitions. Word has length 319 [2022-04-06 08:51:20,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:51:20,585 INFO L478 AbstractCegarLoop]: Abstraction has 4329 states and 6250 transitions. [2022-04-06 08:51:20,585 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:20,585 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 6250 transitions. [2022-04-06 08:51:20,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-04-06 08:51:20,589 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:51:20,589 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:51:20,590 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-04-06 08:51:20,590 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:51:20,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:51:20,590 INFO L85 PathProgramCache]: Analyzing trace with hash -801415708, now seen corresponding path program 1 times [2022-04-06 08:51:20,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:51:20,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844798478] [2022-04-06 08:51:20,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:51:20,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:51:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:51:20,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:51:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:51:20,802 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-04-06 08:51:20,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:51:20,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844798478] [2022-04-06 08:51:20,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844798478] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:51:20,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:51:20,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:51:20,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667735530] [2022-04-06 08:51:20,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:51:20,803 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:51:20,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:51:20,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:51:20,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:51:20,804 INFO L87 Difference]: Start difference. First operand 4329 states and 6250 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:24,736 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 [] [2022-04-06 08:51:25,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:51:25,060 INFO L93 Difference]: Finished difference Result 4355 states and 6270 transitions. [2022-04-06 08:51:25,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:51:25,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 320 [2022-04-06 08:51:25,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:51:25,063 INFO L225 Difference]: With dead ends: 4355 [2022-04-06 08:51:25,064 INFO L226 Difference]: Without dead ends: 4339 [2022-04-06 08:51:25,064 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:51:25,064 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 15 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:51:25,064 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 553 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-04-06 08:51:25,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4339 states. [2022-04-06 08:51:25,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4339 to 4145. [2022-04-06 08:51:25,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4145 states, 4140 states have (on average 1.448792270531401) internal successors, (5998), 4140 states have internal predecessors, (5998), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:25,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 6002 transitions. [2022-04-06 08:51:25,093 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 6002 transitions. Word has length 320 [2022-04-06 08:51:25,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:51:25,093 INFO L478 AbstractCegarLoop]: Abstraction has 4145 states and 6002 transitions. [2022-04-06 08:51:25,093 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:25,093 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 6002 transitions. [2022-04-06 08:51:25,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-04-06 08:51:25,126 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:51:25,127 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:51:25,127 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-04-06 08:51:25,127 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:51:25,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:51:25,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1716898329, now seen corresponding path program 1 times [2022-04-06 08:51:25,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:51:25,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22999377] [2022-04-06 08:51:25,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:51:25,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:51:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:51:25,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:51:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:51:25,763 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 905 trivial. 0 not checked. [2022-04-06 08:51:25,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:51:25,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22999377] [2022-04-06 08:51:25,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22999377] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:51:25,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:51:25,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-06 08:51:25,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43021628] [2022-04-06 08:51:25,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:51:25,764 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 08:51:25,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:51:25,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 08:51:25,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-06 08:51:25,765 INFO L87 Difference]: Start difference. First operand 4145 states and 6002 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 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) [2022-04-06 08:51:27,191 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 [] [2022-04-06 08:51:29,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:51:32,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:51:32,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:51:32,505 INFO L93 Difference]: Finished difference Result 4153 states and 6012 transitions. [2022-04-06 08:51:32,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 08:51:32,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 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 326 [2022-04-06 08:51:32,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:51:32,509 INFO L225 Difference]: With dead ends: 4153 [2022-04-06 08:51:32,509 INFO L226 Difference]: Without dead ends: 4145 [2022-04-06 08:51:32,509 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-06 08:51:32,510 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 7 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:51:32,510 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 821 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 440 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 08:51:32,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4145 states. [2022-04-06 08:51:32,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4145 to 4145. [2022-04-06 08:51:32,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4145 states, 4140 states have (on average 1.4485507246376812) internal successors, (5997), 4140 states have internal predecessors, (5997), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:32,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 6001 transitions. [2022-04-06 08:51:32,546 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 6001 transitions. Word has length 326 [2022-04-06 08:51:32,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:51:32,546 INFO L478 AbstractCegarLoop]: Abstraction has 4145 states and 6001 transitions. [2022-04-06 08:51:32,546 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 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) [2022-04-06 08:51:32,546 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 6001 transitions. [2022-04-06 08:51:32,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-04-06 08:51:32,551 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:51:32,551 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:51:32,552 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-04-06 08:51:32,552 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:51:32,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:51:32,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1006834184, now seen corresponding path program 1 times [2022-04-06 08:51:32,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:51:32,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068128805] [2022-04-06 08:51:32,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:51:32,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:51:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:51:33,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:51:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:51:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 513 proven. 209 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-06 08:51:33,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:51:33,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068128805] [2022-04-06 08:51:33,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068128805] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:51:33,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148598896] [2022-04-06 08:51:33,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:51:33,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:51:33,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:51:33,688 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) [2022-04-06 08:51:33,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-06 08:51:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:51:35,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 1697 conjuncts, 100 conjunts are in the unsatisfiable core [2022-04-06 08:51:35,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:51:35,079 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:51:35,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 08:51:35,202 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-06 08:51:35,203 INFO L390 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 [2022-04-06 08:51:35,328 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-04-06 08:51:35,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-04-06 08:51:35,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:35,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-04-06 08:51:35,463 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-06 08:51:35,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-04-06 08:51:35,482 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:51:35,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-04-06 08:51:36,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:36,222 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-06 08:51:36,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-04-06 08:51:36,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:36,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 08:51:36,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:36,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 08:51:36,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:36,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 08:51:36,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:36,327 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 08:51:36,328 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-04-06 08:51:36,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:36,333 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-06 08:51:37,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:37,128 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-06 08:51:37,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-04-06 08:51:37,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:37,164 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-06 08:51:37,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-04-06 08:51:37,209 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-04-06 08:51:37,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-04-06 08:51:39,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:39,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:39,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:39,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:39,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:39,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:39,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 295 [2022-04-06 08:51:39,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:39,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:39,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:39,290 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-04-06 08:51:39,291 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 379 treesize of output 392 [2022-04-06 08:51:39,320 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-04-06 08:51:39,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 407 treesize of output 335 [2022-04-06 08:51:43,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:43,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:43,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:43,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 304 [2022-04-06 08:51:43,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:43,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:43,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:43,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 286 [2022-04-06 08:51:43,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:43,540 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 08:51:43,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 374 treesize of output 362 [2022-04-06 08:51:43,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:43,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 148 [2022-04-06 08:51:43,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:51:43,759 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 88 [2022-04-06 08:51:43,795 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-04-06 08:51:43,796 INFO L390 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 107 treesize of output 108 [2022-04-06 08:51:43,877 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-06 08:51:43,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-04-06 08:51:44,017 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:51:44,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-04-06 08:51:44,043 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-06 08:51:44,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:51:47,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:51:47,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:51:47,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-04-06 08:51:47,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:51:47,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:51:47,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-04-06 08:51:49,079 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-06 08:51:49,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148598896] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 08:51:49,079 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 08:51:49,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 14] total 42 [2022-04-06 08:51:49,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184851371] [2022-04-06 08:51:49,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 08:51:49,081 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-04-06 08:51:49,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:51:49,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-04-06 08:51:49,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=1431, Unknown=0, NotChecked=0, Total=1722 [2022-04-06 08:51:49,082 INFO L87 Difference]: Start difference. First operand 4145 states and 6001 transitions. Second operand has 42 states, 42 states have (on average 11.976190476190476) internal successors, (503), 41 states have internal predecessors, (503), 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) [2022-04-06 08:51:51,100 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 [] [2022-04-06 08:51:58,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:51:58,956 INFO L93 Difference]: Finished difference Result 11216 states and 15788 transitions. [2022-04-06 08:51:58,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-04-06 08:51:58,956 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 11.976190476190476) internal successors, (503), 41 states have internal predecessors, (503), 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 326 [2022-04-06 08:51:58,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:51:58,969 INFO L225 Difference]: With dead ends: 11216 [2022-04-06 08:51:58,969 INFO L226 Difference]: Without dead ends: 11216 [2022-04-06 08:51:58,970 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 689 SyntacticMatches, 6 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4373 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=1593, Invalid=11289, Unknown=0, NotChecked=0, Total=12882 [2022-04-06 08:51:58,971 INFO L913 BasicCegarLoop]: 378 mSDtfsCounter, 1928 mSDsluCounter, 5102 mSDsCounter, 0 mSdLazyCounter, 4896 mSolverCounterSat, 190 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 5480 SdHoareTripleChecker+Invalid, 7846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 4896 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 2759 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:51:58,971 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1928 Valid, 5480 Invalid, 7846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 4896 Invalid, 1 Unknown, 2759 Unchecked, 6.2s Time] [2022-04-06 08:51:58,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11216 states. [2022-04-06 08:51:59,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11216 to 5433. [2022-04-06 08:51:59,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5433 states, 5428 states have (on average 1.4823139277818718) internal successors, (8046), 5428 states have internal predecessors, (8046), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:51:59,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5433 states to 5433 states and 8050 transitions. [2022-04-06 08:51:59,053 INFO L78 Accepts]: Start accepts. Automaton has 5433 states and 8050 transitions. Word has length 326 [2022-04-06 08:51:59,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:51:59,054 INFO L478 AbstractCegarLoop]: Abstraction has 5433 states and 8050 transitions. [2022-04-06 08:51:59,054 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 11.976190476190476) internal successors, (503), 41 states have internal predecessors, (503), 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) [2022-04-06 08:51:59,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5433 states and 8050 transitions. [2022-04-06 08:51:59,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-04-06 08:51:59,090 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:51:59,090 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:51:59,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-06 08:51:59,291 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2022-04-06 08:51:59,291 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:51:59,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:51:59,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1827435158, now seen corresponding path program 1 times [2022-04-06 08:51:59,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:51:59,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141584512] [2022-04-06 08:51:59,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:51:59,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:51:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:00,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:52:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:00,176 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 513 proven. 209 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-06 08:52:00,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:52:00,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141584512] [2022-04-06 08:52:00,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141584512] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:52:00,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400136720] [2022-04-06 08:52:00,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:52:00,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:52:00,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:52:00,178 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) [2022-04-06 08:52:00,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-06 08:52:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:01,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 99 conjunts are in the unsatisfiable core [2022-04-06 08:52:01,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:52:01,516 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:52:01,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 08:52:01,603 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-06 08:52:01,603 INFO L390 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 [2022-04-06 08:52:01,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-04-06 08:52:01,734 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:52:01,735 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-06 08:52:01,745 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:52:01,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-06 08:52:01,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:01,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-04-06 08:52:01,777 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-06 08:52:01,777 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-04-06 08:52:01,786 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:52:01,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-04-06 08:52:02,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:02,375 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-06 08:52:02,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-04-06 08:52:02,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:02,381 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 08:52:02,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:02,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 08:52:02,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:02,447 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 08:52:02,448 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-04-06 08:52:02,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:02,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-06 08:52:02,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:02,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-06 08:52:03,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:03,080 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-06 08:52:03,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-04-06 08:52:03,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:03,114 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-06 08:52:03,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-04-06 08:52:03,168 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-04-06 08:52:03,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-04-06 08:52:04,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:04,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:04,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:04,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:04,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:04,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:04,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 357 treesize of output 279 [2022-04-06 08:52:04,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:04,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:04,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:04,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:04,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:04,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:04,085 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 357 treesize of output 291 [2022-04-06 08:52:04,131 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-04-06 08:52:04,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 357 treesize of output 376 [2022-04-06 08:52:08,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:08,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:08,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:08,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 352 treesize of output 282 [2022-04-06 08:52:08,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:08,088 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 08:52:08,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 352 treesize of output 346 [2022-04-06 08:52:08,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:08,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:08,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:08,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 277 [2022-04-06 08:52:08,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:08,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 114 [2022-04-06 08:52:08,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:08,345 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 72 [2022-04-06 08:52:08,375 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-04-06 08:52:08,376 INFO L390 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 91 treesize of output 92 [2022-04-06 08:52:08,441 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-06 08:52:08,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-04-06 08:52:08,562 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:52:08,562 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-04-06 08:52:08,589 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-06 08:52:08,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:52:11,059 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:52:11,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:52:11,061 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-04-06 08:52:11,064 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:52:11,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:52:11,070 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-04-06 08:52:28,254 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:52:28,254 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:52:28,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2022-04-06 08:52:28,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:52:28,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:28,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:52:28,262 INFO L390 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 25 treesize of output 13 [2022-04-06 08:52:28,399 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-06 08:52:28,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400136720] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 08:52:28,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 08:52:28,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20, 15] total 42 [2022-04-06 08:52:28,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911541749] [2022-04-06 08:52:28,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 08:52:28,400 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-04-06 08:52:28,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:52:28,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-04-06 08:52:28,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=1433, Unknown=7, NotChecked=0, Total=1722 [2022-04-06 08:52:28,401 INFO L87 Difference]: Start difference. First operand 5433 states and 8050 transitions. Second operand has 42 states, 42 states have (on average 11.976190476190476) internal successors, (503), 41 states have internal predecessors, (503), 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) [2022-04-06 08:52:30,665 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 [] [2022-04-06 08:52:32,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:52:34,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:52:36,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:52:38,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:52:44,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:52:44,620 INFO L93 Difference]: Finished difference Result 13129 states and 18892 transitions. [2022-04-06 08:52:44,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-04-06 08:52:44,620 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 11.976190476190476) internal successors, (503), 41 states have internal predecessors, (503), 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 327 [2022-04-06 08:52:44,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:52:44,630 INFO L225 Difference]: With dead ends: 13129 [2022-04-06 08:52:44,630 INFO L226 Difference]: Without dead ends: 13129 [2022-04-06 08:52:44,631 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 758 GetRequests, 670 SyntacticMatches, 4 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2273 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=981, Invalid=6322, Unknown=7, NotChecked=0, Total=7310 [2022-04-06 08:52:44,631 INFO L913 BasicCegarLoop]: 391 mSDtfsCounter, 1375 mSDsluCounter, 4456 mSDsCounter, 0 mSdLazyCounter, 4350 mSolverCounterSat, 151 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 4847 SdHoareTripleChecker+Invalid, 6386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 4350 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 1881 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:52:44,631 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 4847 Invalid, 6386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 4350 Invalid, 4 Unknown, 1881 Unchecked, 13.9s Time] [2022-04-06 08:52:44,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13129 states. [2022-04-06 08:52:44,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13129 to 6905. [2022-04-06 08:52:44,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6905 states, 6900 states have (on average 1.5053623188405798) internal successors, (10387), 6900 states have internal predecessors, (10387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:52:44,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6905 states to 6905 states and 10391 transitions. [2022-04-06 08:52:44,723 INFO L78 Accepts]: Start accepts. Automaton has 6905 states and 10391 transitions. Word has length 327 [2022-04-06 08:52:44,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:52:44,724 INFO L478 AbstractCegarLoop]: Abstraction has 6905 states and 10391 transitions. [2022-04-06 08:52:44,724 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 11.976190476190476) internal successors, (503), 41 states have internal predecessors, (503), 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) [2022-04-06 08:52:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand 6905 states and 10391 transitions. [2022-04-06 08:52:44,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-04-06 08:52:44,730 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:52:44,730 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 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] [2022-04-06 08:52:44,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-06 08:52:44,931 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:52:44,931 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:52:44,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:52:44,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1990769734, now seen corresponding path program 1 times [2022-04-06 08:52:44,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:52:44,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722199974] [2022-04-06 08:52:44,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:52:44,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:52:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:45,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:52:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:45,646 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 562 proven. 164 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-06 08:52:45,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:52:45,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722199974] [2022-04-06 08:52:45,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722199974] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:52:45,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891673624] [2022-04-06 08:52:45,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:52:45,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:52:45,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:52:45,648 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) [2022-04-06 08:52:45,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-06 08:52:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:52:46,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 95 conjunts are in the unsatisfiable core [2022-04-06 08:52:46,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:52:47,010 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:52:47,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 08:52:47,102 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-06 08:52:47,103 INFO L390 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 [2022-04-06 08:52:47,189 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-04-06 08:52:47,231 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:52:47,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-06 08:52:47,241 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:52:47,241 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-06 08:52:47,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:47,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-04-06 08:52:47,282 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-06 08:52:47,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-04-06 08:52:47,294 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:52:47,295 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-04-06 08:52:47,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:47,882 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-04-06 08:52:47,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:47,902 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-06 08:52:47,902 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-04-06 08:52:47,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:47,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 08:52:47,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:47,967 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 08:52:47,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-04-06 08:52:47,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:47,971 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-06 08:52:47,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:47,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-06 08:52:48,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:48,586 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-06 08:52:48,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-04-06 08:52:48,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:48,626 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-06 08:52:48,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-04-06 08:52:48,669 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-04-06 08:52:48,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-04-06 08:52:54,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,860 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 253 [2022-04-06 08:52:54,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 253 [2022-04-06 08:52:54,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:52:54,898 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-04-06 08:52:54,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 295 treesize of output 299 [2022-04-06 08:53:59,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:53:59,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:53:59,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:53:59,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-04-06 08:53:59,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:53:59,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:53:59,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:53:59,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-04-06 08:53:59,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:53:59,723 INFO L356 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2022-04-06 08:53:59,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 290 treesize of output 280 [2022-04-06 08:54:01,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:54:01,221 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-04-06 08:54:01,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:54:01,224 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 78 [2022-04-06 08:54:01,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:54:01,248 INFO L356 Elim1Store]: treesize reduction 143, result has 11.7 percent of original size [2022-04-06 08:54:01,248 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 97 treesize of output 93 [2022-04-06 08:54:01,304 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-06 08:54:01,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-04-06 08:54:01,432 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 479 proven. 309 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-06 08:54:01,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:54:03,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:54:03,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:54:03,815 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-04-06 08:54:03,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:54:03,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:54:03,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-04-06 08:54:19,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:54:19,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:54:19,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2022-04-06 08:54:19,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:54:19,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:54:19,538 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-06 08:54:19,538 INFO L390 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 25 treesize of output 13 [2022-04-06 08:54:19,679 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 549 proven. 177 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-06 08:54:19,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891673624] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 08:54:19,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 08:54:19,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17, 15] total 39 [2022-04-06 08:54:19,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850277610] [2022-04-06 08:54:19,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 08:54:19,680 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-04-06 08:54:19,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:19,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-04-06 08:54:19,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1237, Unknown=6, NotChecked=0, Total=1482 [2022-04-06 08:54:19,681 INFO L87 Difference]: Start difference. First operand 6905 states and 10391 transitions. Second operand has 39 states, 39 states have (on average 13.692307692307692) internal successors, (534), 38 states have internal predecessors, (534), 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) [2022-04-06 08:54:20,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:22,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:23,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:25,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:27,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:29,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:31,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:33,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:35,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:37,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:48,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:48,013 INFO L93 Difference]: Finished difference Result 17016 states and 24443 transitions. [2022-04-06 08:54:48,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-04-06 08:54:48,014 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 13.692307692307692) internal successors, (534), 38 states have internal predecessors, (534), 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 328 [2022-04-06 08:54:48,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:48,027 INFO L225 Difference]: With dead ends: 17016 [2022-04-06 08:54:48,028 INFO L226 Difference]: Without dead ends: 17016 [2022-04-06 08:54:48,028 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 835 GetRequests, 694 SyntacticMatches, 19 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5725 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=2060, Invalid=13186, Unknown=6, NotChecked=0, Total=15252 [2022-04-06 08:54:48,029 INFO L913 BasicCegarLoop]: 464 mSDtfsCounter, 2442 mSDsluCounter, 7342 mSDsCounter, 0 mSdLazyCounter, 6680 mSolverCounterSat, 541 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2442 SdHoareTripleChecker+Valid, 7806 SdHoareTripleChecker+Invalid, 11722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 6680 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 4495 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:48,029 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2442 Valid, 7806 Invalid, 11722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 6680 Invalid, 6 Unknown, 4495 Unchecked, 23.1s Time] [2022-04-06 08:54:48,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17016 states. [2022-04-06 08:54:48,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17016 to 6285. [2022-04-06 08:54:48,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6285 states, 6280 states have (on average 1.4597133757961784) internal successors, (9167), 6280 states have internal predecessors, (9167), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:48,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6285 states to 6285 states and 9171 transitions. [2022-04-06 08:54:48,133 INFO L78 Accepts]: Start accepts. Automaton has 6285 states and 9171 transitions. Word has length 328 [2022-04-06 08:54:48,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:48,133 INFO L478 AbstractCegarLoop]: Abstraction has 6285 states and 9171 transitions. [2022-04-06 08:54:48,134 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 13.692307692307692) internal successors, (534), 38 states have internal predecessors, (534), 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) [2022-04-06 08:54:48,134 INFO L276 IsEmpty]: Start isEmpty. Operand 6285 states and 9171 transitions. [2022-04-06 08:54:48,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-04-06 08:54:48,140 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:48,140 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:54:48,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-04-06 08:54:48,349 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:54:48,349 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:48,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:48,349 INFO L85 PathProgramCache]: Analyzing trace with hash -2126156244, now seen corresponding path program 1 times [2022-04-06 08:54:48,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:48,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766085155] [2022-04-06 08:54:48,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:48,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:48,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:48,766 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 487 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2022-04-06 08:54:48,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:48,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766085155] [2022-04-06 08:54:48,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766085155] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:48,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:48,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:48,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717010099] [2022-04-06 08:54:48,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:48,767 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:48,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:48,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:48,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:48,768 INFO L87 Difference]: Start difference. First operand 6285 states and 9171 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:51,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:53,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:55,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:55,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:55,854 INFO L93 Difference]: Finished difference Result 11905 states and 17090 transitions. [2022-04-06 08:54:55,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:55,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 330 [2022-04-06 08:54:55,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:55,866 INFO L225 Difference]: With dead ends: 11905 [2022-04-06 08:54:55,866 INFO L226 Difference]: Without dead ends: 11905 [2022-04-06 08:54:55,866 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:55,866 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 121 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:55,866 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 512 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 317 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-04-06 08:54:55,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11905 states. [2022-04-06 08:54:55,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11905 to 11286. [2022-04-06 08:54:55,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11286 states, 11281 states have (on average 1.4339154330289867) internal successors, (16176), 11281 states have internal predecessors, (16176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:55,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11286 states to 11286 states and 16180 transitions. [2022-04-06 08:54:55,983 INFO L78 Accepts]: Start accepts. Automaton has 11286 states and 16180 transitions. Word has length 330 [2022-04-06 08:54:55,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:55,984 INFO L478 AbstractCegarLoop]: Abstraction has 11286 states and 16180 transitions. [2022-04-06 08:54:55,984 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:55,984 INFO L276 IsEmpty]: Start isEmpty. Operand 11286 states and 16180 transitions. [2022-04-06 08:54:55,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-04-06 08:54:55,996 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:55,996 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:54:55,996 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-04-06 08:54:55,996 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:55,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:55,997 INFO L85 PathProgramCache]: Analyzing trace with hash -525936988, now seen corresponding path program 1 times [2022-04-06 08:54:55,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:55,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88684273] [2022-04-06 08:54:55,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:55,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:56,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:56,792 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 515 proven. 207 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-06 08:54:56,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:56,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88684273] [2022-04-06 08:54:56,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88684273] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:54:56,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669596706] [2022-04-06 08:54:56,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:56,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:54:56,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:54:56,794 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) [2022-04-06 08:54:56,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-06 08:54:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:57,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 78 conjunts are in the unsatisfiable core [2022-04-06 08:54:57,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:54:58,008 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:54:58,008 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 08:54:58,050 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:54:58,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 08:54:58,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-06 08:54:58,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:54:58,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2022-04-06 08:54:58,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:54:58,327 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-06 08:54:58,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 69 [2022-04-06 08:54:58,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:54:58,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2022-04-06 08:54:58,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:54:58,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2022-04-06 08:54:58,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:54:58,911 INFO L356 Elim1Store]: treesize reduction 78, result has 47.3 percent of original size [2022-04-06 08:54:58,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 98 [2022-04-06 08:54:58,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:54:58,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 70 [2022-04-06 08:54:58,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:54:58,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 08:54:58,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:54:58,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-06 08:54:58,976 INFO L356 Elim1Store]: treesize reduction 75, result has 37.5 percent of original size [2022-04-06 08:54:58,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 83 [2022-04-06 08:54:59,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 65 [2022-04-06 08:54:59,029 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41 [2022-04-06 08:54:59,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-04-06 08:54:59,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 08:54:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 675 proven. 135 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-04-06 08:54:59,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:54:59,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-04-06 08:54:59,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-04-06 08:55:00,175 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_182 Int) (v_arrayElimCell_183 Int) (v_ArrVal_22191 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_182 (store (select |c_#memory_int| v_arrayElimCell_182) (+ v_arrayElimCell_183 844) v_ArrVal_22191)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8640))) is different from false [2022-04-06 08:55:01,291 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-04-06 08:55:01,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-04-06 08:55:01,404 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 619 proven. 183 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-04-06 08:55:01,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669596706] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 08:55:01,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 08:55:01,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 16] total 38 [2022-04-06 08:55:01,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317539576] [2022-04-06 08:55:01,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-06 08:55:01,405 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-04-06 08:55:01,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:01,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-04-06 08:55:01,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1155, Unknown=1, NotChecked=70, Total=1406 [2022-04-06 08:55:01,406 INFO L87 Difference]: Start difference. First operand 11286 states and 16180 transitions. Second operand has 38 states, 38 states have (on average 13.894736842105264) internal successors, (528), 37 states have internal predecessors, (528), 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) [2022-04-06 08:55:04,184 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 [] [2022-04-06 08:55:06,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:08,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:09,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:10,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:12,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:13,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:15,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:17,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:41,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:41,187 INFO L93 Difference]: Finished difference Result 67490 states and 92116 transitions. [2022-04-06 08:55:41,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2022-04-06 08:55:41,188 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 13.894736842105264) internal successors, (528), 37 states have internal predecessors, (528), 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 330 [2022-04-06 08:55:41,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:41,266 INFO L225 Difference]: With dead ends: 67490 [2022-04-06 08:55:41,266 INFO L226 Difference]: Without dead ends: 67476 [2022-04-06 08:55:41,270 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1018 GetRequests, 746 SyntacticMatches, 21 SemanticMatches, 251 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 27870 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=9280, Invalid=53975, Unknown=1, NotChecked=500, Total=63756 [2022-04-06 08:55:41,271 INFO L913 BasicCegarLoop]: 619 mSDtfsCounter, 5037 mSDsluCounter, 11526 mSDsCounter, 0 mSdLazyCounter, 14518 mSolverCounterSat, 1422 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5037 SdHoareTripleChecker+Valid, 12145 SdHoareTripleChecker+Invalid, 17869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1422 IncrementalHoareTripleChecker+Valid, 14518 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 1924 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:41,271 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [5037 Valid, 12145 Invalid, 17869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1422 Valid, 14518 Invalid, 5 Unknown, 1924 Unchecked, 30.2s Time] [2022-04-06 08:55:41,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67476 states. [2022-04-06 08:55:41,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67476 to 30166. [2022-04-06 08:55:41,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30166 states, 30161 states have (on average 1.4107622426312125) internal successors, (42550), 30161 states have internal predecessors, (42550), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:41,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30166 states to 30166 states and 42554 transitions. [2022-04-06 08:55:41,811 INFO L78 Accepts]: Start accepts. Automaton has 30166 states and 42554 transitions. Word has length 330 [2022-04-06 08:55:41,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:41,812 INFO L478 AbstractCegarLoop]: Abstraction has 30166 states and 42554 transitions. [2022-04-06 08:55:41,812 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 13.894736842105264) internal successors, (528), 37 states have internal predecessors, (528), 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) [2022-04-06 08:55:41,812 INFO L276 IsEmpty]: Start isEmpty. Operand 30166 states and 42554 transitions. [2022-04-06 08:55:41,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-04-06 08:55:41,842 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:41,842 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:41,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-06 08:55:42,043 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:55:42,043 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:42,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:42,044 INFO L85 PathProgramCache]: Analyzing trace with hash 672096791, now seen corresponding path program 1 times [2022-04-06 08:55:42,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:42,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5477486] [2022-04-06 08:55:42,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:42,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:42,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:42,331 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 611 proven. 55 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-04-06 08:55:42,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:42,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5477486] [2022-04-06 08:55:42,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5477486] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:55:42,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732135958] [2022-04-06 08:55:42,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:42,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:55:42,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:55:42,332 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) [2022-04-06 08:55:42,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-06 08:55:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:43,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 18 conjunts are in the unsatisfiable core [2022-04-06 08:55:43,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:55:43,824 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:55:43,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-04-06 08:55:43,871 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 08:55:43,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 08:55:44,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-06 08:55:44,021 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 08:55:44,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-06 08:55:44,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-04-06 08:55:44,219 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 619 proven. 62 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-04-06 08:55:44,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 08:55:44,585 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-04-06 08:55:44,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732135958] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 08:55:44,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 08:55:44,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-04-06 08:55:44,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656252774] [2022-04-06 08:55:44,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:44,586 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:55:44,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:44,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:55:44,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-06 08:55:44,587 INFO L87 Difference]: Start difference. First operand 30166 states and 42554 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:45,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:45,630 INFO L93 Difference]: Finished difference Result 31727 states and 43776 transitions. [2022-04-06 08:55:45,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:55:45,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 336 [2022-04-06 08:55:45,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:45,705 INFO L225 Difference]: With dead ends: 31727 [2022-04-06 08:55:45,706 INFO L226 Difference]: Without dead ends: 31727 [2022-04-06 08:55:45,706 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 674 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-04-06 08:55:45,706 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 119 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:45,706 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 385 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-06 08:55:45,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31727 states. [2022-04-06 08:55:46,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31727 to 30298. [2022-04-06 08:55:46,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30298 states, 30293 states have (on average 1.383322879873238) internal successors, (41905), 30293 states have internal predecessors, (41905), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:46,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30298 states to 30298 states and 41909 transitions. [2022-04-06 08:55:46,075 INFO L78 Accepts]: Start accepts. Automaton has 30298 states and 41909 transitions. Word has length 336 [2022-04-06 08:55:46,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:46,075 INFO L478 AbstractCegarLoop]: Abstraction has 30298 states and 41909 transitions. [2022-04-06 08:55:46,076 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:46,076 INFO L276 IsEmpty]: Start isEmpty. Operand 30298 states and 41909 transitions. [2022-04-06 08:55:46,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-04-06 08:55:46,104 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:46,105 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:46,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-06 08:55:46,305 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:55:46,305 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:46,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:46,306 INFO L85 PathProgramCache]: Analyzing trace with hash 311769257, now seen corresponding path program 1 times [2022-04-06 08:55:46,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:46,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377552835] [2022-04-06 08:55:46,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:46,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:46,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:46,470 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-04-06 08:55:46,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:46,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377552835] [2022-04-06 08:55:46,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377552835] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:46,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:46,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:46,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165745415] [2022-04-06 08:55:46,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:46,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:46,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:46,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:46,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:46,471 INFO L87 Difference]: Start difference. First operand 30298 states and 41909 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:48,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:50,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:52,689 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 [] [2022-04-06 08:55:53,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:53,141 INFO L93 Difference]: Finished difference Result 30994 states and 42709 transitions. [2022-04-06 08:55:53,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:53,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 337 [2022-04-06 08:55:53,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:53,172 INFO L225 Difference]: With dead ends: 30994 [2022-04-06 08:55:53,173 INFO L226 Difference]: Without dead ends: 30994 [2022-04-06 08:55:53,173 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:53,173 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 13 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:53,173 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 547 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-04-06 08:55:53,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30994 states. [2022-04-06 08:55:53,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30994 to 30874. [2022-04-06 08:55:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30874 states, 30869 states have (on average 1.379280184003369) internal successors, (42577), 30869 states have internal predecessors, (42577), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:53,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30874 states to 30874 states and 42581 transitions. [2022-04-06 08:55:53,603 INFO L78 Accepts]: Start accepts. Automaton has 30874 states and 42581 transitions. Word has length 337 [2022-04-06 08:55:53,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:53,603 INFO L478 AbstractCegarLoop]: Abstraction has 30874 states and 42581 transitions. [2022-04-06 08:55:53,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:53,603 INFO L276 IsEmpty]: Start isEmpty. Operand 30874 states and 42581 transitions. [2022-04-06 08:55:53,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-04-06 08:55:53,633 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:53,633 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:53,634 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-04-06 08:55:53,634 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:53,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:53,634 INFO L85 PathProgramCache]: Analyzing trace with hash 942915248, now seen corresponding path program 1 times [2022-04-06 08:55:53,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:53,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792370810] [2022-04-06 08:55:53,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:53,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:53,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:53,794 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 638 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-04-06 08:55:53,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:53,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792370810] [2022-04-06 08:55:53,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792370810] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:53,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:53,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:53,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947888863] [2022-04-06 08:55:53,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:53,795 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:53,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:53,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:53,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:53,796 INFO L87 Difference]: Start difference. First operand 30874 states and 42581 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:55,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:57,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:59,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:00,977 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 [] [2022-04-06 08:56:01,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:01,355 INFO L93 Difference]: Finished difference Result 30902 states and 42581 transitions. [2022-04-06 08:56:01,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:01,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 338 [2022-04-06 08:56:01,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:01,389 INFO L225 Difference]: With dead ends: 30902 [2022-04-06 08:56:01,389 INFO L226 Difference]: Without dead ends: 30144 [2022-04-06 08:56:01,389 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:01,390 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 10 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:01,390 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 541 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 366 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-04-06 08:56:01,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30144 states. [2022-04-06 08:56:01,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30144 to 28527. [2022-04-06 08:56:01,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28527 states, 28522 states have (on average 1.380828833882617) internal successors, (39384), 28522 states have internal predecessors, (39384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:01,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28527 states to 28527 states and 39388 transitions. [2022-04-06 08:56:01,910 INFO L78 Accepts]: Start accepts. Automaton has 28527 states and 39388 transitions. Word has length 338 [2022-04-06 08:56:01,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:01,910 INFO L478 AbstractCegarLoop]: Abstraction has 28527 states and 39388 transitions. [2022-04-06 08:56:01,911 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:01,911 INFO L276 IsEmpty]: Start isEmpty. Operand 28527 states and 39388 transitions. [2022-04-06 08:56:01,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-04-06 08:56:01,934 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:01,934 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:01,935 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-04-06 08:56:01,935 INFO L403 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:01,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:01,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1034008123, now seen corresponding path program 1 times [2022-04-06 08:56:01,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:01,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148532521] [2022-04-06 08:56:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:01,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:02,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:02,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 678 proven. 111 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-04-06 08:56:02,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:02,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148532521] [2022-04-06 08:56:02,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148532521] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:56:02,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008904552] [2022-04-06 08:56:02,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:02,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:56:02,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:56:02,120 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) [2022-04-06 08:56:02,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-06 08:56:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:03,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-06 08:56:03,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:56:04,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 594 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-04-06 08:56:04,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 08:56:04,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008904552] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:04,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-06 08:56:04,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-04-06 08:56:04,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173844282] [2022-04-06 08:56:04,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:04,110 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-06 08:56:04,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:04,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-06 08:56:04,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-06 08:56:04,111 INFO L87 Difference]: Start difference. First operand 28527 states and 39388 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2022-04-06 08:56:04,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:04,201 INFO L93 Difference]: Finished difference Result 37640 states and 52023 transitions. [2022-04-06 08:56:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-06 08:56:04,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 338 [2022-04-06 08:56:04,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:04,241 INFO L225 Difference]: With dead ends: 37640 [2022-04-06 08:56:04,241 INFO L226 Difference]: Without dead ends: 37637 [2022-04-06 08:56:04,241 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-06 08:56:04,242 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 139 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:04,242 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 374 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 08:56:04,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37637 states. [2022-04-06 08:56:04,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37637 to 36992. [2022-04-06 08:56:04,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36992 states, 36987 states have (on average 1.381647605915592) internal successors, (51103), 36987 states have internal predecessors, (51103), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:04,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36992 states to 36992 states and 51107 transitions. [2022-04-06 08:56:04,672 INFO L78 Accepts]: Start accepts. Automaton has 36992 states and 51107 transitions. Word has length 338 [2022-04-06 08:56:04,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:04,672 INFO L478 AbstractCegarLoop]: Abstraction has 36992 states and 51107 transitions. [2022-04-06 08:56:04,672 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2022-04-06 08:56:04,672 INFO L276 IsEmpty]: Start isEmpty. Operand 36992 states and 51107 transitions. [2022-04-06 08:56:04,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-04-06 08:56:04,704 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:04,704 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:04,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-04-06 08:56:04,904 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:56:04,905 INFO L403 AbstractCegarLoop]: === Iteration 76 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:04,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:04,906 INFO L85 PathProgramCache]: Analyzing trace with hash -488272360, now seen corresponding path program 1 times [2022-04-06 08:56:04,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:04,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688149974] [2022-04-06 08:56:04,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:04,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:05,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:05,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 473 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2022-04-06 08:56:05,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:05,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688149974] [2022-04-06 08:56:05,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688149974] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:05,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:05,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:56:05,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66527925] [2022-04-06 08:56:05,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:05,097 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:56:05,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:05,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:56:05,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:56:05,097 INFO L87 Difference]: Start difference. First operand 36992 states and 51107 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 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) [2022-04-06 08:56:06,491 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 [] [2022-04-06 08:56:08,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:10,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:10,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:10,666 INFO L93 Difference]: Finished difference Result 46105 states and 63758 transitions. [2022-04-06 08:56:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:56:10,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 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 338 [2022-04-06 08:56:10,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:10,718 INFO L225 Difference]: With dead ends: 46105 [2022-04-06 08:56:10,718 INFO L226 Difference]: Without dead ends: 46102 [2022-04-06 08:56:10,718 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:56:10,718 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 136 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:10,719 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 370 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 231 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-06 08:56:10,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46102 states. [2022-04-06 08:56:11,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46102 to 45785. [2022-04-06 08:56:11,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45785 states, 45780 states have (on average 1.3824814329401485) internal successors, (63290), 45780 states have internal predecessors, (63290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:11,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45785 states to 45785 states and 63294 transitions. [2022-04-06 08:56:11,312 INFO L78 Accepts]: Start accepts. Automaton has 45785 states and 63294 transitions. Word has length 338 [2022-04-06 08:56:11,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:11,313 INFO L478 AbstractCegarLoop]: Abstraction has 45785 states and 63294 transitions. [2022-04-06 08:56:11,313 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 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) [2022-04-06 08:56:11,313 INFO L276 IsEmpty]: Start isEmpty. Operand 45785 states and 63294 transitions. [2022-04-06 08:56:11,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-04-06 08:56:11,350 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:11,351 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:11,351 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-04-06 08:56:11,351 INFO L403 AbstractCegarLoop]: === Iteration 77 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:11,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:11,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1081958893, now seen corresponding path program 2 times [2022-04-06 08:56:11,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:11,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702296736] [2022-04-06 08:56:11,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:11,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:12,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 629 proven. 297 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-04-06 08:56:12,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:12,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702296736] [2022-04-06 08:56:12,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702296736] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:56:12,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971944125] [2022-04-06 08:56:12,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 08:56:12,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:56:12,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:56:12,837 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) [2022-04-06 08:56:12,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-04-06 08:56:38,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 08:56:38,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 08:56:38,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 238 conjunts are in the unsatisfiable core [2022-04-06 08:56:38,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:56:58,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:29,066 INFO L190 IndexEqualityManager]: detected not equals via solver